US1053694A - Feeding mechanism for blanking and forming machines. - Google Patents

Description

B. DE N. ANDERSON.

FEEDING MECHANISM FOR BLANKING AND FORMING MACHINES.

APPLICATION FILED APR.29,1910.

3 4 11 7 m m w mm a m b m V m R am M 4 m M Lnlafl p &M a s 1 E. DE N. ANDERSON. FEEDING MECHANISM FOR BLANKINGv AND FORMING MACHINES.

APPLICATION FILED APR. 29,1910.

Patented Feb. 18. 1913 Wiizesses E. DE N. ANDERSON.

FEEDING MECHANISM FOR BLANKING AND FORMIN G MACHINES.

APPLICATION FILED APR. 29, 1910.

Patented Feb. 18, 1913.

4 SHEETS-SHEET 3.

B. DE N. ANDERSON.

FEEDING MECHANISM FOR. BLANKING AND FORMING MACHINES.

APPLICATION FILED APR. 20, 1910.

1,053,694. Patented Feb. 18, 1913.

4 SHEETS-SHEET 4.

we Zine i040 which upheld by the main framework 1. (in the shaft 20 is a sprocket wheel 6 from which through a. chain 7 motion is imparted to a sprocket wheel 8 on a shaft 63 journaled in the frame 1 at a point below the machine bed 14. A chain. 9 transmits motion from a sprocket wheel 8 on shaft 63 to the shaft 11, passing around a sprocket wheel ll) on the lattenshaft. Shaft 11 is journaled in the side castings 1.3, 13. of the 1'? which is equipped with various grips or clamps for holding the paper Web or stock and properly delivering it to the action oi the die. The shaft 11 which is carried by the castings 13 at a. point below the plane of movement of the traveling carriage 17 has thereon a cam mechanism comprising an elongated drum 12 wherein is out a. multiplicity of 3roperly-shape l cam groves to he hereinafter more fully explained and by the action of which the traveling carriage l? is caused to reciprocate transversely back and forth across the. machine carrying withlllthe paper or ol her material on which the die is acting.

Although it is not necessary in this explanation of the main frame and the punch and die to enter into any accurate and detailed explanation of the precise construction thereof. it will be understood that the punt-h 2 may he circular or of any other form and that it may be actuated by any convenient mechanism within the carrier 3, such as is common in machines of this class.

Ordinarily this punch :2 will he forced downward through material like paper or paste hoard placed beneath it in such downward movement, cutting out. a section from paper, after which the punch will he lifted "t om the die or retracted into proper posiion for another punching action. The revolution oi the top shaft 20 is properly geared to the punch to .nable it to perform its function, and this same revolution takes place in correspondence with the revolution of the cam drum. whereby the feed frame 17 is caused to travel in the right direction, such harmonious movement between the ca m drum and the means for driving the punch dcvicebeing smvured through the connecting medium of chains. sprocket wheels and the like. or other equivalent and well known devi v carriage 1'? may ha ve any losing usually of ageneral angular linen, and located 111 a horizontal above another.

I l l position. withbearings or sockets 18 at the corners, through which the rods 15 and 16 pass, and by means of which the frame, is supported slida-bly on said rods and thereby enabled when properly actuated to more in one direction or the other. from one side of the machine to the other side, along the length or a part of the length of the saidv parallel horizontal supporting guide rods 15 and 16. Of course, the trans: 17, for the sake. of simplicity and lightness. may' have any skeleton form desired. andxlhcre i'hay be as many or as few of the sockets or lwarings 18 as will enable it to be properly supported for its necessary movement,

Frame 17 carries in its l'ronl part a hori. zontal rod ll) and opposite thereto at the rear :1 similar horizontal rod 21 which is parallel to rod 19, said rods passing tlurough bearings 23., 'lhcsc' rods are prowl-l sccurcd rigidly to the frame 'l 7 either by means of collars pinned thereto alongside oi. the hearings through which said rods .19 and 21 pass, or in any other manner. but this securiattachn'ient is of such a kind that the rods will. be. bodily carried back and forth by the frame 1i (luring its rcciprocatory movement. but not of such a character as will 1 revonl the said rods from rotating to a greater or degree within the bearings 72? '23 on the frame l? at trout and hacu. 'lhcse rods If) and 31 are connected to ether near their ends by the horizontal rods 2i, and at the rear of frame 17 above rod 21. and adjoining the table 14 is a horizontal bar)? hetwecn which and the shall. 21 there is a short intervening space. 'lhc rods ll are prei'crahlv arranged in pairs at each end oil the machine (see Fig. 6), each pair being located in a vertical plane with one rod These ro s are SllplXll'tttl near their ends in standards ti l which provide loose bearings for them. so that they are capable of being rcciproca'licd baclaand forth horizontally through said hearings. The l'ioriZonta-l rear bar 253 is secured by suitable means to those uprights ll nearestto the die of the machine. I

Castings 33 are pinned. or otherwise so curcly fastened to one or both ol. the rods These castings 33 carry rigdly. supported thereon (l:l]1l}')lll1 jaws there being one of these at each side of the ma chine. Opposite to each clamping jaw is another enacting clamping jaw 96. having a socket 34.- supportcd loosely on the lowermost of each pair of rods 24-, and provided with a projecting arm 3'? carrying at. its outer end an anti-friction roller. at each side of the machine, l provide in this manner a pair of clamps, each pair consisting of the two members 35 and 36, be tween which the material to be fed to the action oi. the die is gripped and tightly held tor lhe purpose of enabling it he carried Cit Th u I forwarthas will be hereinafter more fully explained. The jaw 3:) of each clamp is supported rigidly relatively to the jaw 36 while the latter is movable toward away from the jaw 35 in consequence of "the oscillation of the socket ll on its supporting rod. The movable jaw in each case is no tuated by an arm 38 which is rigidly attired to the shaft or rod 21, there being thus two arms 38, one at each end of shaft-2h so that.

in this way the two movable members ol.

the two clamps at the opposite sides of the machine may be siinultant'ously actuated whenever the rod '21 is oscillated or rotated. This oscillation of the rod 21 is accomplished by means of a pin 3!) whose huh -10 is securely fastened to the rod 21.. Pin 3%) has on its outer end a head or roller 41 which rides upon a track -22 whenever the carriage 17 travels to the right or left. The track 42 has a' diti'erential level, heinghigher at certain points, and lower at other points, (see Fig. 10, where it. is lowc at the middle and higher at'the ends) so that as the finger 3t and this rolleror head ll ride along over said track 42, said finger will he at times lifted and at other times depressed, and by this operation the shaft or rod 21. will he oscillated and the arms 38 correspondiugly actuated, thereby depressing the levers $57 and opening or closing" the jaws 36. (in the shaft or rod 521, alongside of the huh it), is a coiled spring -13 attached to the frame 17 at one end and to thehuh slit) at the other end, and so tensioned as to force the pin 3%) downward and bring its wheel or head 41 constantly upon the edge of the track 42. The particular contour of the path atlordcd by the track v42 will he hereinafter more fully explained.

. The front horizontal rod t9 provided at each end with an upwardly extending crank arm 31. See Fig. 5. Links 32 are pivotally connected to the nppcr end of these crank arms ill. and also to the movable castings 33, which, as l have pointed out, are securelyattached to the rods 24. The oscillation of the front rod 1'.) in its hearings will obviously throw the upwardly projccting crank arm 81, in one direction or the other, a's'tli'e case may he. thereby moving the links 21;; and causing thc castings ;333 and their attached rods it to he reciprocatcd horizontally in one direction or the other, either forward or back. This movement obviously carries the pairs of paper grippin o clamps 35 and 51 and thus moves the continuous web of paper or othcr material toward the die or punt-h. incntsot the clamps to th ir former position is brought about by the springs which are attached to the castings it? and to some stationary part of the frame. as stand-- ards o l. The oscillation of the shaft 19 The return movcmovement of the clamps may be occasioned by various means. and one form of means employed for the purpose which is successful in actual practice consists essentially of a roller 21% (see Fig. 9) carried by a pin QT which passes through the rod 19 and also through a hub 28 surrounding said rod 19 near its middle point. The huh 5,8 has a n'ojecting tubular part through which also the pin iZTpasses, and to the outer end of said pin is fastened a collar 29. Springs 30 attached to the huh 28 are likewise attached to projecting pins or fingers on the collar 25). and these springs have the function of urging the collar toward the hub 28 and its socket. and thus causing the head or roller 20 to be normally kept in its outermost position as shownin Fig. l). When anything acts to push the roller 20 toward the huh it obvious that the springs 30 will be extended temporarily, but they will act. to promptly return the roller 20 to its projected position as soon as the rctruding agency is removed therefrom. The main frame ot the machine alongside ol the front rod 15, andcuntiguous to the trout. rod 49 belonging to the movable frame 17, is provided with tracks ll, 15 and H3 in connection with which the roller er rides and is shifted during the ltt'lpt'tltfhtOly movement of the frame 17. The special contour of these tracks, consisting); as it does of ups and downs, depressions and elevations and gaps, together with surfaces or edges of unequal elevation, causes the roller 26 to shift its position in various ways during, the movement of the frame 17. and this change of position oscillatts the rod 19, and thereby moves the arm ll. the links 32. the castings 33. the rods 24, and the paper gripping devices. Thus it will be seen that by meansot the roller ll, operating on the track 42. the jaws of the side clamps tor the edges ol the paperarc opened and closed;

and by means o'lthe roller it: running on its irrcgula r tracks in from these side clamps are bodily moved torward 1n the direction of the punching die after the paper has been gripped thereby. being" returned after release from the paper by the springs 65.

The rear bar '35. supported by standards (it. carrics near the middle portion thereof a stationary in w -li' forming a .part of a' center gripping dcvicc which is intended to grip the trout end of the paper at that poinh the other part of said gripper consistinp of a second jaw 48 which is carried by a sleeve 49 containing a pill 530. see Fig. 7. Pin 50 is sopportcd in the end of a lever arm 51. Adjacent to the pin 50. said lcvcr arm 51 is provided with another pin 59 which carries arollcr 3 5. which runs on a track 54. said track being placed alongside of the above mentioned track 42. The lever arm 51, e).

which is requirite to perform this forward 1 tends to a point i'tear the corner of the mova ble frame 1'? where it is pivotally hung by means of a pin 51 to said corner 23. Thus the lei-"or arm St is arranged to move in a vertical plane on its pivot 51., its opposite end carrying the roller 53 that runs on the tract; 5 t. and carrying also the pin which supports the movable part of the paper grip or clamp operating at this point; for it will be seen that when the jaw 48 grips tight against the jaw *l-T, it will fixedly hold a. sheet of pa cr,paste-hoard or other material. The vibration of the lever 51 and the conse qucnt opening); and closing of the jaws of this center clamp is controlled by means of the roller 5? that runs on the track 5-1. This track is not of the same level edge throughout, but. irregular according to fixed conditions, having therein depressions and elevations, and as the roller 53 runs thereon the cli'cct will be to open and close the jaw 48. This track 5 is lower at the ends than in the middle portion, and as the clamp is closed when the high part of the track elevates the roller 53 it will be seen that the clamp will be open when the traveling carriage 1'? is at the limits ot' its travel. and will bonnet-ting a gripping effect when the carriage-is running along the middle portion of its travel.

53 designates a long continuous piece of paper stock which is fed into the machine from a roll of material which is supmrtod on a shaft 57 at some suitable point .contiguous to the tending mechanism. In

the delivery of the paper to the maclitine there must be enough slack to allow it to follow its crosswise movement easily as shown in Fig. I. The forward end of the paper placed beneath the punch 2, as shown in dotted lines in Fig. 4, and the op oration of the punch on the paper, pastehoard or other material, produces the result of cutting circular or other shaped. pieces t'roni the paper, as indicated at 58 in Fig. i. and also in Fig 8. ln order to insure the proper delivciw' oi" the web 553 to the die, itis iicccsary that it should be caused to travel not only forwardly, but also utter each for- .vaiid uiovcnit'ent it must travel transvmsely beneath thr die. so that the latter may exerutc a series of cuts therein from one edge across to the opposite edge in a straight line,

hown in Figs. 1" and 8; and it will be untood that as soon as one tral'isversc series of cuts is completed, the paper will be fed tin-ward so as to bring it in position for a second transverse movement, in order'that thincx't' series of cuts maybe executed alongside ot the first series. Furthermore, and right llkitv comes in the vital part of my present innu'oven'ient. it is not sutlicient to merely teed the paper torwardin position for time iii-airing ot the next series of cuts alongside of and opposite to those of the preceding but also at the instant; of this forward feeding impulse the paper ii'HtSt be given a slight lateral or sidewise thrust, which will stagger the second line of cuts, so to spealgand cause them to be made at points between those of the preceding series as well as in a second series parallel to the first, as shown at the points 59 in Fig. 8.

The transverse movement of the carriage 1i' which carries the end of the paper web across the bed 14 so that it may be subjected to the action of the punching die is effected by mechanism consisting essentially of the drum 12 which, as I have already described, is driven by the sprocket 10 on its shaft 11. In the drum 12 are cut numerous circumferential grooves (30 which are parallel to each other for a certain portion of their curvaturc, but throughout the rest of their length have an inclined curved path, as shown at 61. whereby each groove in some cases connects with the next succeeding groove, and in some cases with the second succeeding groove, so that a shoe engaging one. of the circum'terential grooves will, during the revolution of the drum, be transferred into the next succeeding groove or into the second succeeding groove, as the case may be, and then transferred again when the proper pointis reached, so that in this manner it will be caused to travel. through a horizontal path parallel to the axis of the drum.

62 denotes such a shoe which is carried by the frame 17, and is preferably curved on its lower edge, as shown in Fig. 9, to enable it to more readily engage the grooves (30, but the arc of the curvature of the engaging edge of the shoe .62 is not concentric with the arc of the bottom portion of the groove 60 of the drum, for the ends of the shoe 62 are preferably flared oil so that the connection of the same with the groove may be of a simple' and easier form, giving thereby a, better movement. of the parts.

The mode of coniiluctinp; the shoe to the frame may vary widely. One form is given in the drawings which show the shoe (32 having a swivel pin 62 held loosely in frame 17. Ateach end of the drum 12, the curved connecting portions 61 of the cam grooves lead from one such groove only to the next succeeding groove, and not to the second, as is the case with the balance of these curved connecting portions of the cam grooves, and hence when the shoe 62 is travcling under the influence of these end curved connecting portions of the cam grooves, the effect will be to shift the carriage 17 only a part of the distance which it is at other times ordinarily shifted during the rest of its travel and during one complete revolution of the cam drum, for it is obvious that during one such revolution the shoe 62 will only pass from one of the circumferential grooves into the next circumferential groove, and this will only thrust the carriage trans versely the length of the distance between one groove and the next groove, whereas during the balance of the revolutions of the cam drum until the other end thereof is reached, it is obvious that one revolution oi? such drum will suilicient to thrust the shoe 62 and the carriage for a distance equal The action of the to the distance from one of the circumferential grooves 31 to the second one from it; This inequality of the movement of the car-- riage and the paper supported thereon at clilierent intervals without any change in the rate of revolution of the actuating drum, or the number of such revolutions, causes the shifting of the paper in the way that is required to produce the staggered effect of the round holes which is necessary to save wastage of the paper which is le t as the result of the cutting out of the different holes.

The action of the lateral clamps is dependent upon the movement of the rollers 26 and ll. Roller 26, as has already been pointed out, runs upon the tracks 44, 45 and 46, which has an irregular and broken contour, as is indicated in plan View in Fig. 4 and which is brought out more clearly in the several sectional views of Figs. 11, 1'2 and 13, wherein the position of the roller 26 at different times during the travel of the carriage 17 across the machine is indicated. It is seen by reference to these figures, how the roller 26 is at one time at one angle and at another time'at another angle, and that in being shifted from one osition to the other through the contour ot the tracks on which it travels, the shaft 19 is caused to oscillate to a greater or less extent, the result of which is to actuate the arms 31 and thereby move the lateral clamps forward. roller M, in connection with the lateral clamps, and also of the roller 53, is shown more clearly in Fig. 10, where the respective contours or two )arallel tracks 42 and 54 is lucidly and grap ically shown (see also the sectional view of Fig. 9). Roller 41 operates on track 42 and roller 53 runs on tracli 54. The track 42 has a depressed section at a point between its ends, whereas the track filis depressed at the ends lower than for a certain central tween said ends. When the roller 53 a he ends of the track 54 the jaws 4. 7 and are open, but when the roller 53 is on ,the high part of the track 54: the jaws 47 and i8 will be tightly closed. \Vhen the roller 4-1 is upon the end portions of the track 42, the eliect on the end arms 38 is to depress the jaw carrying levers 37 of the lateral clamps and close the jaws 36 against the jaws 35, thereby tightly grasping the paper. \Vhen said roller ell is running on the depressed contrav portion of the track 452, the reverse action of the levers 38 will take place with the result that the jaws 35 and 34) of the lat eral clamps will be opened and the paper distance be,

released. Therefore it will he understood that when the carriage 17 is near the central part of its travel, the lateral clamps will be open because the roller il will be on the depressed section of the track 42; while at this time the central front clamp, consisting of jaws 4t? and 48, will be closed because the rollerfi? will he on the high part of the track 54. Then the carriage 17 is at either end of its transverse travel, the central front clamp will be open, because, as shown in Fig. 10, the roller 53 will he on one of the depressed ends of track 54, thus allowing the jaws 4e? and 48 to separate, while simultaneously the roller 41 will he on one of the high parts of its track 42, causing the lateral jaws to he closed.

Referring to the front bars or rails 44, 45 and MS in association with which the roller 26 operates clurinp' the back and forth travel of the carriage l in order that the movement of said roller 26 mayoscillate the shaft 19 and thuspass the lateral clampnisni at certain times, it will be seen that it is preferable to locate the bars Maud 46 with a gap between them, and to relate them in their positions to the rod 15 and the shaft 19 as indicated in 9, 11, 12 and 13. if we assume that the carriage 17 is in the position shown in Fig. l und that it travels ing devices toward the punching mechatoward the right in the direction shown by 1 osition of the the arrows at 11, 11, the

tie inclined bar roller 26 when itreache. 45 is shown clearly in ig. 11, for when the roller 26 first contacts with the end of the bar 45, the curved tip of said bar will thereby expanding the springs 30 by removing the nut 29 from the end of the socket 28; and as the carriage 17 continues tow ard the right and the roller 26 rides behind the inclined bar 45, it will continue to occu y end of the stroke and starts to return. When itreaches the end the cut away part ot the bar if) at 67 allows the roller :26 to fly out into its normal position, being released at this time from the rear face of the bar 415. and then when the carriage .17 moves toward the left and carries the roller 26 with it, the latter will ride upon the upper horizontal edge oi the hair up by the curved part of said edge at (37. and this action will oscillate the shaft 19 and cause it to result that the lateral clamps will be thrust forward toward the punching die carrying,' the paper forward to the extent of the movement. of the (-lanips, and the clamps will be held in engagement with the paper in this forward position while the roller 26 is moving upon the upper edge of the bar 45; but when the gap between the bar 45 and the bar 44 is reached and the roller 26 falls off the end of bar 45, it is cause the roller 26 to he thrust inwardly,

this thrust in position until itreaches t e 45, being lifted obvious that the springs 65 will come into action and draw the lateral clamps back into their former position in which they will remain until the roller 26 reaches a point near the end of the left hand travel of the frame 17' where it will be raised by the curved part 68 of the rear bar 46 which is directly behind the bar 1-4. The grip ping of the paper by the lateral clamps takes place, as I have already explained, in such a way that the" grip is maintained except when the carriage 17, is near the central of its travel, at which time the center clamp is alone gripping and holding the paper, for the side clamps must, of course,

have the paper in their grasp promptly when they are moved forwardly toward the punching die by, the movement of the roller 26 into the position which it occupies in Fig. l3. It is obvious, of course, that the tracks 12 and 54 at the rear of the machine overlap each other to .a greater or less extent, so that there are times when both the center clamp and the lateral clamps concurrently grip the paper; but it is essential that the center clamp should be released from the paper at the times when the lateral clamps are to operate to give it the forward im pulse, and it is also essential that the con-- 'ter clamp should hold the firmly when the lateral camps have been released from the paper and are being.

aper alone very thrust back into their normal position to grip it again further back. Pursuing the movement of the roller 26 during itsfurthertravel across the machine under the action of the reciprocating frame 17, it will be noted that after it leaves the track and passes the gap between the track 45 and the.

track 44 it willride easily behind the track 4 1- which ie inclined, hutwill not be thrust in so as to expand the springs 30; and when the lifting curve 68 is reached the roller 26 will then pass from its inclined position,

as indicated in Fig. 12, to its uplifted position as indicated in Fig. 13, the position it occupies when the shat 19 is being oscillated and the-lateral clamps thrown back;

and when the reverse movement of the carriage takes place and the roller 26 moves again toward the right, it will ride up n the upper edge of the track H as shown in Fig- 13, keeping in this position until near the centerof the transverse travel of 'the frame 17, during all which tim e'the clamps will remain in the position to which they have been thrust forward until the roller 26 drops off the end of the track 1% into the gap between the track 4 1 and -15 and, allows thereby the shaft 19 to oscillate back again into its former position under the action of the springs which draw back the clamps and the levers which operate the latter. Thus it will be seen that the tracks 14, 15 and 46 differ from each other 1 cutting action,

the lateral clamps to cause said movement to take place at the right point of time.

When the paper stock is fed forward toward the die by this movement of the lateral clamps, the carriage is either beginning its travel toward the left or is about to conclude one of these transverse travels, as is apparent from what I have just said regarding the lifting of the roller 26 by means of the curved edge 67 of track 45, or the curved edge 68 of track 46, and simultaneously, as I have already pointed out, with the active movement of the lateral clamps for carrying the paper forward occurs the movement to the left which causes the staggering of the position of the cuts. This is manifest when it is noticed how the curved portions 61 of the grooves in the cam 12 are arranged, there being such a \curved part when the right hand end of the drum 12 which enables the shoe 62 to be transferred from one of the circumferential grooves 60 to the next one instead of to the second one from it, and there being also near the left hand end of the drum 60 another one of these curved connecting grooves 61 by which the shoe 62 is transferred from one circumferential groove to the next succeeding one, so that. in the travel of the carriage 17 from the right toward theleft there is an apparently short movement of the carriage at the beginning and one at the end of the travel, while the movements between. these are lhhger. "When speaking, of these movements, of course, the paper is referred to and the movements are-those .Which carry it under the die, so that the latter may execute. its and. the variation in the length of the movement as produced by the different curves which connect the grooves in the cam causes the staggering result from which so much follows in the operation of my machine in saving paper stock from waste. I

From the previous description of the construction and relative arrangement of the various parts, the operation will be pe"- ceived in a general way by. those skilledin the art, especially when it isnotcd what action takes place in the moven ient of the roller 26 along the upper edge of the tracks 44 and i andthe curved parts til' and 68. near the eXtrr-niities of said tracks 45 and 41. Re-

peating briefly what has already been said,

it will be seen that the paper isdelivered into the machine above thebed 14 by the lateral clamps which are; caused to grip the paper and hold it during its movement with certain exceptions as noted, and then at times these clamps are caused to move forward toward the die or punch a short dis tanee carrying the paper stoekalong and ters Patent, is:

osses;

placing the latter in position for the die to I means including a reciprocating carril'lgc punch a new row of holes. The grasp of the )aper by the lateral clamps is nminiained 'or a part of the time, while the paper being fed transvcrsel y across the machine; but when the end of this transverse move-- ment is reached these cl mops will themselves he moved forward. When the lateral clumps move forward, the center front clan'ip Willform no obstruction to such forward movement, .tor hav ng li en previously re leased by the proper action oi. the roller Till, the paper slipped forward through said clamp. litter the paper has so hccn'fed forward, the center front clamp will again grasp it and hold it during the subsequent.

transverse movement of the carriage 17. This movement will be repeated continu-- ously during the entire operation ot the more chine, the carriage l7 reciprocating from one side to the other and carrying with it the pa er. At each reciprocation, after one row 0 holes has been cut, the clamps at the sides operate to move the pcper'torwcrd, and their at the proper time after such .torwsrd movement these chimps at the sides are released, while the pa or is being held by the center front clamp, or the springs clesrly shown in Figs. 4 and .5 operate them to draw hack the lateral clamps after heing so opened and released from the paper.

liming thus described myinvcntioinwhct I claim as new and desire to secure by Let 1. In a feeding mechanism for looking and forming machines, the combination of means for feeding a continuous strip of material along :1 group of parallel lines, means for feeding it at an angle to said parallel lines, said latter feed taking plrice at inter vals, and means for changing the distance of the feed at certain points in said parallel lines, said means consisting essentially of a revolving drum having cam grooves cut.

therein of proper form to cause the required change (it feeding distance.

2. In a feeding meclmnism for blanking and forming machines, the combination of means for feeding a C(J'lltlllllOllS strip of mm terial along a group of parallel lines, means for "feeding it at an angle to said parallel lines, said latter thed taking place at intervals, and means for changing the distimce, of the feed at ceriaii points in said parallel lines, said means consisting of a cam drum having circumfereniial grooves cut, therein and curved connecting rooves between said circumferential groov some of which curved connecting grooves connect together it dill'erent number of circumferential grooves than do the other curved connecting grooves.

3. lo a feeding mechanism for blanking and forming machines, the combination of means for feeding a continuous strip of material along a group of parallel paths, said gripping of the clnmpin and clamping mechanism thereon tor gripping, the paper stock, means for feeding the stock at an angle to said parallel paths, said means includiiig mechanism for imparting intermittent motion to the clamping devices both for causing them to grip and to be fed bodily ij'ornhird, and means for changing the distaum? of feed at certain points in the parallel lines of movement, said means comprising essentially a cam drum arranged to not uuic llic reciprocating carriage.

in a feedingmechanism for blanking and forming machines the combination of means for feeding a continuous strip of mo.- lerial along parallel transverse lines, means for changing" the distance of this feed at ccrlain Joints in certain lines, means for feeding tie stocloat an angle to said group of parallel lines, and means for causing the letter feed to be intermittent at equal intervals, which means includes a clamping mechanism holding the stock, and a second clamping mechanism, the first clamping mechanism acting to feed the paper forward once for each transverse movement, and the second clmnping mechanism acting to hold the paper when released by the 'first clampin mechanism. i

5. in a fccdii'igg mechanism for blanking and tor-min g machines, the combination with means for coding a continuous strip of ma tcrial back and forth along parallel paths, of means for clmnging the distance of the feed at certain points in said paths, means for feeding the stock at anangle to said parallel lines, said latter feed being for equal distances and taking place intermittently, and said means'including clamps reciprocable to cause the intermittent forward "Ford of the stock, nod 11 part of said clamp-' ing means operat ng to hold the stock when released by the use all the clamping means.

6. In a feedinp mechanism for blanking and forming machines, the combination of a reciprocating carriage, clamping mechanism thereon for gripping the aper stock, a cam device for reciprocating t e carriage so that it will travel at times a different distance from the travel at other times, and automatic mechanism tor controlling the opening and mechanism and the movement forward 0 the some in delivering the paper stock to the cutter.

7. In a feeding mechanism for blanking and forming machines, in which a continuous web of paper stock or other material is brought under the action of :1 die or punch, the combination of a'reciprocating carriage for carrying the paper along parallel paths,

u cam device for propelling said-carriage unequal distances'at difi'erent times so that the paper may he offered to the cutter so as to stagger the cuts in one row relatively to thosein an adjoining row,aclamp supported by the carriage and gripping the paper at or near the edges, a clamp also supported by the carriage and gripping the paper, during the time when the other clamp is released from the paper, an automatic means for opening and closing the clamps at the proper time and for moving a part of the clamping mechanism bodily forward with the paper at certain times, said automatic mechanism including oscillatable shafts and levers connected therewith, which levers are controlled by irregular t 'acks on which they move.

8. In a feeding mechanism for blanking and forming machines, in which a continuous web of paper is fed forward by intermittent impulse to the action of adie or punch, the combination of a reciprocating carriage for moving the paper along groups of parallel lines, means for causing said carriage to travel intermittently for uniform distances along lines of travel, clamping devices sup ported on the carriage for gripping the' paper at the edges, which clamping devices" are moved bodily forward with the paper toward the die at the end of each reciprocation of the carriage, another clamping mechanism supported on the carriage for holding the paper when released by the lateral clamps, and automatic means including levers .and irregular tracks on which they slide for actuating the various clamps in closing and unclosing and throwing forward.

9. In a feeding mechanism for blanking I and forming machines, in which a continuone web of paper is fed forward by intermittent impulses to a die or punch, the combination of a reciprocating carriage for moving the paper along groups of parallel lines, a cam device for actuating said carriage, said ftlll'l device having circumferential grooves cut therein and curved connects ing grooves between said circumferential grooves, some of which curved connecting grooves connect together a different number of circumferential grooves from the other curved connecting grooves, clamps on. the carriage for gripping the edges of the paper, another clamp likewise on the carriage for holding the paper when released by the first named clamps, means for moving the latter clamp forward carrying the paper there with, said means including a rotatable shaft,

a lever, irregular tracks on which the lever works, and means for \apening and closing the clamps.

10. in a feeding mechanism for blanking and forming .i'nachincs, the combination of means for feeding the stock along a group of parallel lines, said means including a reciprocating carriage and clamping mechanism thereon for gripping the paper stock, means for changing auton'iatically the distance the stock is moved for the first out in each new row simultaneously with the advance ni0vement of the material for said new row, so that the cuts in any one row may alternate with those in the preceding row, clamps for gripping the paper, an auxiliary clamp for holding the paper when released by the first clamps, tracks of uneven elevation for corn trolling automatic mechanism whereby the clamping devices are caused to be active or inactive and certain of the clamps are caused to be thrown forward, and springs for returning the latter clamps to their normal position after each forward impulse.

11. In a feeding mechanism for blanking and forming machines, the combinatibnlof a reciprocating carriageior feeding the stock along parallel paths, a cam drum having grooves out. therein and operating to actuate, the carriage in such. a way that it may travel at differentdistances at certain points in some of the lines of travel, a pair of lateral clamps for gripping the edges of the paper, another clamp for holding the paper when released by the lateral clamps, automatic leverage connections for opening and closing said clamps, a pair of tracks whose edges are ot' unequal elevation from end to end' on which the said autmnatic mechanism travels and whereby it is controlled, automatic mechanism for throwing the pair of lateral clamps forward toward the die, irregular tracks for controlling the movement of this automatic mechanism, and means for returning the lateral clamps to their normal posi tion after being thrown forward.

1' n testimony whereof, I affix my signature in presence of two witnesses.

ERJEST DE NEEN ANDERSON. liitnesses l-lowann H. Wimnams, :i'lERHER'l SOI'I'UBER'I.

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