US1608863A - Roving peg or bobbin holder - Google Patents

Description

ATroRNEY Nov. 30 1926.

Patented Nov. 30, 1926.

lJNliE STATES PATENT OFFICE.

EDWIN 0. ROE, OF NEW BEDFORD, MASSACHUSETTS, ASSIGNOR TO NATIONAL SPUN SILK CU., INC., F NEW BEDFORD, MSSCHUElLTTS, A GGR'RATION 0F MASSA- CHUSETTS.

ROVING PEG OR IBOBBIN HOLDER.

Application filed February 27. 1926.

This invention relates generally to iinprovements in textile machines and has particular reference to improvements in what are known as the roving pegs or bobbin holders used in such machines.l

One object of the invention is to provide a device of the kind mentioned which will permit the bobbin to rotate very freely so that the thread or yarn will be subjected to a very slight pull or tension in unwinding it trom the bobbin. Such a construction is very desirable for use in-handling` very light yarns or threads as` to which strain or stress might cause an improper drawing or breakage. However, the improved construction embodies a feature which may be used to prevent overrunning of the bobbin and this feature may, by a very slight change or adjustment, be employed to create a greater tension on the yarn or thread it they are of such a nature or if the work to be done on them should require it.

Another object of the invention is to provide a bobbin holder so constructed that lint and the like cannot accumulate between the bobbin holder and the spindle in such way as to increase the friction or tension on the yarn.

Another object of the invention is to provide a construction whereby the bobbin holder will not be det-ached when the bobbin is removed therefrom, thereby doing away with the trouble and loss now caused by failure of employees to see'that holders pulled ofi by removing tight orwarped bobbins are recovered andrestored to posit-ion on the spindles.

Vith the foregoing and other objects in view, the invention consists' in a novel combination and arrangement of parts the novel features of which are pointed out 'in appendf ed. claims, and. a preferred embodiment ot which ishereinatter described withreterence to the' drawings accompanyingand forming a part ot this specification.

In said drawings:V A I Fig..n1 is a side view, partly in section,v of one ot-the improved bobbin holth'ers.`

Fie- 2 sshevs in seetionanewneeleses Serial No. 91,029.

scale the construction of the upper end of the bobbin holder and of the upper end of the spindleon which the holder rotates.

Fig. 3 shows a modified construction coinprising a novel arrangement -for creating` and regulating trictio'nal resistance to rotations ot' the bobbin holder.

Figs. t and 5 are details of elements of construction employed in the modification shown in Fig. 3.

The construction shown in the drawing comprises a spindle secured in any suitable way, as by means ot the nuts 11, to the frame 12 of the main machine. The spindle has preferably an enlarged portion 13 extending to a point near the outer or upper end of the spindle, which end is reduced as at la and terminates in a point 15. This point is shown as being substantially conical in shape.

Surrounding the spindle 10 is a cylindrical bobbin holder 16, the main part 17 ot the interior of which is tubular and of a greater diameter than the spindle. rlhe head or end 18 ot the spindle is rounded or otherwise shaped to serve as a guide in putting a bohbin 19, carrying* the yarn or thread 20, on the holder.

rthe interior ot' this end 18 ol the holder is provided with a cylindrical recess 21 to receive the reduced end 111 oi the spindle in such a way as to surround the reduced end and with the point in contact with the closed end of the recess. This construction provides a satisfactory pivot support and bearing for the upper end ol the spindle and leaves a small compartment 22 around the pointedend of the spindle fora lubricant.

The lower end of the holder 16 is threaded preferably on the exterior, to cooperate with corresponding threads on a cap or skirt member 23.. The member surrounds the lower re` duced portion of the spindle 10 so that when it is iny normal position it terms a lower bearing for the holder-' The inner wall Q4 of thefnember is adjacent the lower shoulder ofthe enlargementfl on the spindle. When a very tree running holder is desired the'innerwall 24; may not loe-.normally 'in frctional engagement with the shoulder on the spindle, but where over-running is to be prevented the member 23 may be made adjustable so that a slight friction is created between the wall Qd and the shoulder.

Instead of making the member 23 adjustable the construction shown in Figs. 3, 4 and 5 may be employed. In this construction an open sided washer or weight 26 surrounds the enlarged portion 13 of the spindle l0 and rests upon the inner surface 2l of the skirt 23. r he interior of the element 26 is provided with a lug or rib 27 engaging a longitudinal slot 28 in the stationary spindle l0. lt is apparent that this construction provides a satisfactory way of creating fric- 'tional resistance to rotations of the holder 16 and that bv usino; elements 26 of different mass or by using` did'erent members or" such elements the frictional resistance may be regulated according to the eiiect desired.

it is obvious that when the member 23 is in normal position, the position in which it is iown in the drawing,` in both of the constructions described, the inner wall othe member and the shoulder on the spindle will cooperate to prevent the w'thdrawal of the holder le 'roin the spindle when removing an empty bobbin.

The exterior oi the cap or skirt 23 is beveled as shown at thereby serving to center the bobbins on the holder.

`When it is desired to remove the bobbin holder for any purpose, as, Jfor example, to renew the lubricant, the member 23 is unscrewed, thereby allowing,` the body oi the holder to be removed. After lubricating the parts are restored to normal position and relation, thereby closing .the bobbin holder so that the bearings are fully protected from dust and lint.

From the foregoing; it will be seen that the construction shown and described is admirably adapted to uliill the purposes primarily stated and that certain modifications may be made to adapt the idea to specific conditions without departin from the s irit of the invention., such modifications all coming` within the lscope of the claims which follow.

lihat is' claimed is:-

l. ln device of the character described, the combination or a stationary spindle, a tubular bobbin holder closed at one end and having the vinterior of said end constructed to form a bearing cooperating with the outer end of the spindle, a screw cap surrounding the spindle and closingthe other end ofthe holderand forming a second bearing for the holder, and means on the spindle cooperating with the cap to prevent withdrawal of the holderv from the spindle until the cap is unscrewed. l

2, In a device of the character described,

the combination of a stationary spindle, a bobbin holder closed at its outer end and having` the interior of said end constructed to form a bearing cooperating with the outer end of the spindle, a skirt member surrounding the spindle and closing the other end of the holder, said skirt member having threads cooperating with the threads on the holder, and constituting a second bearing for the holder, and an enlarged portion on the spindle cooperating with the skirt member to limit the holder to rotary movement when the member and holder are screwed together.

3. In a device of the character described, the combination with a spindle having a reduced cylindrical portion at its upper end terminating in a point and a second reduced portion near the lower end of the spindle, of a rotary bobbin holder surrounding the spindle and having its upper interior constructed to providev a cylindrical recess to rest upon the point and surround the sides of theaforesaid reduced point bearing portion of the spind le to torni a pivot bearing, a screw cap closing the other end of the bobbin holder and cooperating with the lower reduced portion ot the spindle to form a second bearing` for the holder, said cap cooperatingl with the shoulder above the reduced. portion on the spindle to preventendwise movement of the holder when the cap is in pl acc.

4. ln a device of the character described, the combination with a spindle having a reduced portion at its upper end terminating in aipoint and a second reduced portion near the lower end-of the spindle, of a bol bin holder surrounding the spindle and having its upper interior constructed to provide a cylindrical recess to receive the aforesaid point bearing reduced end of the spindle, a screw cap closing the other end of the bobbin holder and cooperating with the lower reduced portion of the spindle to torni a second bearing` for the holder and coopera-ting with the shoulder on the spindle to prevent withdrawal or" the holder until the screw cap is removed.

5. In a device of the character described, the combination with a spindle having al reduced portion at its upper end termina-ting` in a point and a second reduced portion near the lower end thereof, of a bobbin holder surrounding the spindle andhaving its upper the spindle and having an interior beering near each end engaging the spindle, a projection on the spindle cooperating` with the interior of the holder adjacent the lower bearing to prevent Withdrawal of the holder when e bobbin is being removed therefrom, and means whereby said projection and the holder may be caused to cooperate to Create varying degrees of frictionel resistance to rotations of the holder.

In testimony whereof I hereto afiix my signature.

DWR(

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