US504932A - Adjustable roller for woodworking-machines - Google Patents

Description

(No Model.) 2 sheets-sum1.

o'. o. M'OOK. ApJUsTABLB ROLLERFOR 'WoopwoRKING MACHINES. No'. 504,932. Patented Sept. 1 2', 1893.

(No Model.)

` 2 sheets-fsheet `2. C. 0. MOOK. ADJUSTABLE ROLLER FOR WOODWORKING MACHINES.

No. 504,932. Patented Sept. 12, 1893.

UNITED STATES PATENT OEEICE.Y

CHARLES O. MOOK, OF KANSAS CITY, MISSOURI.

ADJUSTABLE ROLLER FOR WOODWORKING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 504,932, dated September 12, 1893..

Application filed August 1, 1892. l Serial No. 441,892. (No model.)

Tov all whom it may concern:

Be it known that I, CHARLES O.MooK, of

,Kansas City, Jackson county, Missouri, have invented certain new and useful Improvements in Adjustable Rollers for Woodworking-Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to improvements in appliances for supporting boards, pieces of timber and various other classes of stock in operative position relative to planers, borers, saws, and various other kinds of wood-working machines.

The objects of my invention are to produce an appliance which shall be simple, strong, durable and inexpensive in construction, very easy to manipulate, and capable of being readily and very accurately adjusted so as to meet all of the requirements as to position and changes of position of the Work relative to the operative mechanism of woodworking machines while the Work is being operated upon by the machines.

To the above purposes my invention consists in certain peculiar and novel features ofconstruction and arrangement as hereinafter described and claimed.

In order that my invention may be fully understood, I will proceed to describe it with reference to the accompanying drawings, in which-,u

Figure l is a side elevation of the revoluble type of my adjustable support. Fig. 2 is a plan view of the same. Fig. 3 is a transverse vertical section of the same on the line 3-3 of Fig. 2. Fig. 4 is a vertical section of the same on the line 44 of Fig. 2; the plane of this section being at a right angle to the plane of the section of Fig. 3. Fig. 5 is a view t partly in side elevation and partly in transverse vertical section of a stationary form of my support. Fig. 6 is a detached perspective View of one form of the supporting roller and of the adjacent ends of the two carrying arms therefor; said arms beingprovided With enlarged ends serving as lateral guides for the stock. Y y

Referringnow to the accompanying draw` ings and more` particularly to Figs. l, 2, 3, and

4, l designates a horizontal bar or beam which may be of any suitable or preferred length and width, and which may also be either of wood or of metal as preferred. At its ends this beam or bar is supported by a number of oblique divergent legs 2, which are arranged in pairs at opposite ends of the bar or beam as shown, and which also may be either of wood or of metal and of any suitable length and height, as circumstances may demand.

The bar or beam 1 and its supports or legs 2 constitute a horse or trestle and in these ligures to which particular reference is now made, a base-plate 3 is shown as mounted upon the-bar or beam 1 about midway of the length of the same, and provided, with lugs or ears 4: through which are passed screws or bolts 5 for securing the base-plates 3 in horizontal position upon the bar or beam 1. This base plate 3 constitutes the base of aturn-table and is preferably of circular form in marginal contour and is also preferably formed of a single casting or piece. Immediately above the base-plate is mounted a cap 6 of the turn-table, this cap also occupying a horizontal position and correspondingin form and dimensions with the base 3. The cap 6 is formed centrally with a vertically pendent pivot 7 which extends downward through a corresponding opening in the center of the base 3 and also through the adjacent portion of the bar or beam l.` The lower end portion of this pivot 7 is. reduced to extend through a bearing-cap 8 which is located in contact with the under side of the bar or beam 1 and the lower extremity of this reduced portion of the pivot 7 is externally screw-threaded to receive a nut 9 which abuts against the under side of the cap 8 and thus retains the cap and turn-table in proper relative position upon the base of the turn-table.

Upon the upper side of the base 6 of the turn-table, is formed or suitably secured an elongated horizontal bar l0; this bar being shown as secured to the top of the turn-table by a pair of nuts 1l which are secured upon theupper ends of a pair of bolts l2; the said bolts projecting upward from the base 3 of the turn-table, and being located at opposite sides of the end portions of the bar. It is to be understoodthat the bar l() may be either series from the upper to the lower end of` Y 4their area as shown, and being preferably of varying degrees of width, that is to say, in spaces between the lower teeth of the series or those teeth which are formed upon the end of the bar 10, are of greater width while the Y spaces between the teeth whichare formed uponthe inner side of the extension 13 are of less. wid th, and these spaces. may be of varying widths, so that varying degrees of tine.- ness of adjustment may be readily attained as. hereinafter fully explained.r It is to be understood that while` these teeth may be of the variable character just explained, they may, if preferred all be of uniform character without departing fromv the -essential spiritl of my invention.

Upon the opposite end of the bar 10 from that which carries the extension 13, is formed a second extension 15 which is preferably integra-l with the bar 10. From this standard 15 project oppositely two lateral trunnions 16: through which extends longitudinally a pivot bolt 17,; one end of this bolt being ex-4 ternally screw-threaded to receive a retaining nutl 18.

L9Y designates two. carrying arms each of which may be of 'IT-form in cross-section, as shown,y and the rear endof each of which loosely surround-sone end. of the pivot-bolt 17 just` referred to. These carrying arms 19 are ofv any suitable or preferred length, but are shown. for purposesof illustration,l as of Somewhat. less. length than the distance from the upper end of the` extension 13 to the opposite extremity of the bar 10, The outer or free end portions. of these carrying arms are: also shownA7 as curved lateral-1y away from eachother, and between the outer ends of these arms is. jourualed the supporting roller 2.0. The ends of the roller 2O turn freely in` the Outer or free ends 0f the carryingfarm. rljhis roller and. certain peculiarities inf the construction. of the outer or free ends of these carrying-arms will `be hereinafter fully explained. Y.

Between the twocarrying-arms 19 is interposed a. crossftrunnion-bar 21 through which extends longiftudinallya pivot bolt 22;. asuitable retaining-nut 23 being screwed upon one endet' this retainingbolt, and` the enlarge- 4ments 2.2, being formedpreferably nearer the outer or free ends of the carrying-arms 19, as shown.

From the trunnion-loar` at a point midway of the length 0f the same, extends forwardly an arm 24 which is preferably formed integrally with the, trunnion-bar. Through the outer portion of this arm 24 extends longitudinally an adjusting-rod or screw 25 the front end of which carries a toothedhead 26,

. the tip of which engages with one or another of the teeth 14, before described. The rear portion of this screw-rod is externally screwthread-ed toreceive an adjusting nut 27 which works between two projections 28 of the arm 24.

In Figs. 1, 2,3, and 4, the roller 20 is shown as serrated provided with spike-like protuberances 2Oa upon its outer surface, and at its ends the rollerj is shown as being equal in diameter to the width of the outer ends of the carrying-arms 19.

In Figs. 5 and 6 the roller 20 is shown as formed with a. perfectly smooth surface and the outer ends of the carryingarms 19 are shown as formed with upwardly extending enlargements. 29; the purposes ofl these protuberances and projections 2.9 being hereinafter explained. Moreover, in Fig. 5 the crosstrunniou-bar 21 is shown as provided with an arm- 30 the frontendof which is4 formed with a toothed-head 31; the tip of this head engagingy the ratchet teeth 14 and the adjustable head or dog 26v and its screw-rod and adjust,- ing nut being dispensed with.

In Fig. 3, the upper surface of the lower turn-table member and the under surface of the upper turn-table `member are shown as perfectly flat or plane in form so that they work in contact with each other throughout a their'area, In- Fifg. 4, however, the upperand lower, surfaces respectively of the: lower'andl upper turn-table member are shown as formed with: registerm g circula-r grooves 41 within which are placed a suitable number of anti.-V

the application is being employed in connec tion wit-l1 borinfg-machines and similar ma.-V

chi-nes.

With planing-machines, boring-machines and the like, the stationary form of support. shown; i-n Fig. 5 is preferably employed,.while the-.turu-table type of appliance isy used with IOO sawing-machines and the like- Itis to be un- V derstood also,I that when the appliance is tobe used with sawing-.machines the adjustable dog is not used, the appliance havi'nga planeto construct two or'more types of themachineg.. the one being a stationary machine, as shown.;

in; Fig. 5 (without a turn-tableiandgtheother beingxarevolublemachine as. j shown in4 the. other figures, either of these machines hav ing an adjustable head 26 and its attachments or merely a plane arm 30 and its head:

I will first describe the operation of the machine in connection with a boring-machine. One ofthe appliances `is set at each side of the machine and the roller 2O is adj usted to precisely the height required to support the beam or stock properly beneath the boring tool. The bar or beam is now laid upon the rest or bed of the machine and is supported atv its ends upon the rollers 20 of the two appliances. The boring tool is now brought down upon the stock in the usual manner and the required aperture or hole is made in the usual manner, after which itwill be seen that the stock can be readily moved along until the required place in the stock for the formation of a second aperture or socket reaches the boring-tool. It will be obvious from this description that all necessity of the workman raising the stock bodily is avoided and that the stock issupported much more steadily and securely than it could possibly be supported by the hands of one or more workmen.

Now I will describe the operation of the appliances when used in connection with a planing-machine. One of the supporting appliances is placed at one end of the planer and the other atA the opposite end of the planer. In this class of work it is absolutely necessary for electiveness of execution that the boards or stock to be planed shall be set at precisely the required height relative to the cutter of the planer, so that only so much material shall be removed as shall render the surface smooth but without extravagant Waste ofV stock. Therefore, before commencing operation, ihe adjusting screw 27 is turned so as to move the head 26 a greater or less distance, a variation of one-sixteenth of an inch being thus easily attainable. j Both rollers are 4 thusset in exact accordance with each other and the boards or stock is run through the machine in the usual manner; one roller 2O supporting one end portion of the stock and the roller 20 of the other appliance supporting the opposite end of the stock.

I will 4iinall y describe my appliance as used in connection with cross-saws and rip-saws. Two of the appliances are used in this instance, one being placed at each side of the bed of the rip-saw. The stock lis supported by the two rollers of the two appliances and is passed through the rip-sawing machine in the usual manner thus cutting the stock into suitable Widths. The widths of stock are now piled upon the roller of one of myA appliances and this roller is quickly swung around horizontally so as to extend at right angles to its former position, so as to bring the stock in proper position relative to the cross-saw to be cut thereby. In this instance the serrated rollers are used and the side guides or projections are also used, the serrations of the rollers biting into the stock sufficiently to prevent slipping of the stock on the rollers, and the side guides preventing any dislocation of the stock from the rollers during the swingingof the stock from one saw to 'the other. From the above description it will be seen that I have produced a supporting appliance for Woodworking machines, which is simple, strong, durable, and inexpensive in construction and which is capable of eective operation in connection -with wood-working machines of a great variety of types and which obviates most of the labor heretofore involved in handling such stock; the appliance furthermore, being capable of supporting the stock steadily and accurately. i

I'desire it to be understood that while I have stated that the appliances are intended for woodworking machinery and while such is principally the case, they may with very slight alterations be adapted to metal Work and various other similarclasses of work.

Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent, is

1. lA supporting appliance for woodworking machinery, comprising a suitable supporting framework, a pair of carrying-armsmounted pivotally upon said supporting framework, a supporting roller mounted between said arms; a series of ratchet-teeth carried by the upper portion of the supporting framework'a-nd a pivotal adjusting arm carried between the said carrying `arms and engaging with said ratchet-teeth, substantially as set forth.

2. A supporting appliance for woodworking machinery, comprising a suitable framework, a `pair of carrying-arms mounted pivotally upon said supporting framework, a supporting roller carried between said arms, an adjustable supporting-arm secured pivotally to said carrying-arms and having an adjustable head, an' adjusting-nut for said head anda series of ratchet-teeth engaged by the adj ustable head and carried by the upper part ofthe supporting framework, substantially as set forth.

3. A supporting appliance for woodworking machinery, comprising a suitable supporting framework, a pair of roller-carrying-arms pivotally mounted upon said frameworkga pivotal adjusting-arm carried by the said carrying-arms and having an adjustable head, and an adjusting-nut carried by the'stern o'r rod of the adjustable head, substantially as set forth. j

4E. `A supporting appliance for wood-working machinery, comprising a suitablesupporting frame-work, a longitudinally extending baseplate secured upon said frame-work, alongitudinally extending ba'r formed upon said base-plate or secured thereon, and having an extension at each end, aseries of teeth formed in the upper side of one of said extensions and upon the upper sideof the longitudinally IOO a bolt connecting said parallel arms, and an arm pivoted on said bolt, and having a toothed head vadapted to engage the teeth on the upper sides of the longitudinally extending bar and the extension therefrom, substantially as set forth.

5. A supporting appliance for Wood-working machinery, comprising a suitable frame-work, a stationary base-plate mounted upon said frame-Work, and having a circular body-portion,a revoluble top-plate mounted upon said base-plate having a centrally depending pivot passing through a central opening in the stationary base-plate and the frame-work, and a retaining nut engaging the lower end of said pivot and bearing against the under side of the framework, and a frame located upon the revoluble top-plate, and supporting arms pivoted thereto, and a roller j ournaled in the outer ends of said supporting arms, substantially as set forth.

6. Asupporting appliance for wood-working machinery, comprising a suitable frame-work, a base plate located upon said frame-work having a circular body-portion projecting upwardly therefrom, and having a circular groove therein, a top-plate having a circular groove in its under side adapted to register with the groove in the upper side of the circular body-portion, a number of balls located in said grooves,a pivot pendent from the under side of the top-plate and passing through a central opening in the circular base plate and through the frame-work, and having its vlower end reduced and screw-threaded, a

CHARLES O. MOOK.

Witnesses:

HARRIET E. PRICE, G. Y. THORPE.

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