US1612197A - Shuttle - Google Patents

Description

' Dec. 281926. 1,612,197

E. C. LOWE SHUTTLE Filed Sept. 25, 1924 fivefl orf V Edward GLOZUQ- Patented Dec. 28, 1926.

islitiiTED STATES PTENT OFFIQ EDWARD G. LOWE, F NEENAH, WISCONSIN, ASSIG-NOR TO KIMLARII"RUG COMPANY, OF NEENAH. WISCONSIN, A CORPORATIGN OF WISCONSIN.

SHUTTLE.

Application filed September 25, 1924.

This invention relates to shuttles for looms, but more particularly to tension devices for the same and has for its primary object to provide a simple, economical and efiicient device of this character.

Further objects of my invention are to facilitate the threading of the shuttle; to reduce the cost of operation; to allow for the passage of knots; to provide a finer and more rapid adjustment; to eliminate the usual bottom plate; to facilitate repair, particularly of the spring; and in general, to provide a new and improved tension device.

The many other objects and advantages of my invention will be better understood by reference to the following specification when considered in connection with the accompanying drawing, illustrating a selected embodiment thereof, in which Fig. 1 is a plan view of a shuttle in which is incorporated a tension device embodying the principles of my invention.

Fig. 2 is a longitudinal section on the line 22 of Fig. 1.

Fig. 3 is a transverse section on the line 8-3 of Fig. 1, and

Figs. 4 and 5 are detail views.

Referring to the drawings, the present embodiment of my invention is primarily intended for the weaving of rugs where a paper weft or filling is used. Knots of considerable size quite frequently occur in this kind of filling and it is necessary that the tension device permit these to pass through. The usual strap, or cop binder is not illustrated as this has no relation to the filling tension.

The numeral 1 designates the double pointed shuttle body provided with a cavity or chamber 2 having its Side walls serrated as at 3 for engagement with the cop 4. In shuttles of this nature particularly intended for heavy work, the yarn or filler 5 is generally stripped from the bobbin and placed in the shuttle chamber without any central support. The natural action of this yarn would be to expand into at least one of the grooves of the saw-tooth formation and by such interlocking relation hold the yarn in place against being driven or jammed forwardly when the shuttle enters the boX.

The tension on the yarn is directly provided by oppositely disposed coacting plates 7 and 8, which are shown detached in Figs.

- 1} and 5. The plates '7 and 8 are respectively Serial No. 739.755.

known as the upper and lower tension plates. The plate 7 is embedded in the side walls as at 9 and 9 and held in position by a pin as 10. The bottom tension plate 8 is hinged on a pin 11 and presses thefiller against the top tension plate 7. A spring 12 acts against the under face of the plate 8 and the pressure is regulated by an adjusting screw 13. A depending lug or rivet 14 is attached to the plate 8 to position the spring 12. This spring also permits the bottom plate to yield when a knot passes through the tension device.

A roller 15 is mounted on a stud 16 and secured by a nut 17 seated in a recess 18 in the base wall of the shuttle. The roller is retained on the stud by a washer 19 and screw 20. The roller is preferably flanged at the top 2]. to prevent the filler climbing and the top face is cupped as at 22 to facilitate oiling without danger of soiling the filler. The screw fastening enables the roller to be easily removed for cleaning or replacement. The pin 11 is preferably barbed near its point so that it will get a better grip on the wood.

This tension device gives a finer and more rapid adjustment than one using a flat spring. The usual plate on the bottom of the shuttle has been eliminated. Such plates have been the cause of much trouble as the jar causes the plate to become loose. The coil spring does not crystallize or break as quickly as does a flat spring and this spring may be quickly and easily replaced without removing the entire tension device. As soon as the screw 13 is removed, the spring 12 drops out and a new one may be instantly inserted.

The shuttle is threaded by passing the end of the yarn or filler 5 between the tension plates 7 and 8, around the roller as indicated in Fig. 1, and out through the slot 25 provided for the purpose in the side of the shuttle.

The plates 7 and 8 are preferably set at a wide angle to permit filler knots to pass through without being snapped off. The plates permit the filler to flow or run freely and without any slack While the shuttle is in motion, but check it instantly when the shuttle stops. The plate 7 is preferably notched or slotted at 26 to facilitate the threading. The plate 8 is loosely mounted upon its pivot pin and floats to some extent longitudinally or in the same-direction as that of the thread, the' pivot being s'ubstan tially provided with a slottor this purpose so that the plate will shift in either direction longitudinally or angularly and give to the tension of the paper weft or thread, especially when passing knots, usually of considerable size in paper weft threads as used for filling, thereby permitting the threads and knots to pass or give to prevent breakage thereofwhen there is unwinding checle ing restraint due to contact of the cop or bobbin with the serrated walls of the shuttle. The tension is applied against the upper plate 7' Which is preferably rigid. The plates fit closely the roller 15 about which the filling passes as it leaves the shuttle.

It will be obvious from the foregoing descri'ption that myv shuttle tension device is simple and durable in construction and etficient in operationi' I am aware that numerous changes may be made in the formand arrangement of the parts of my tension device Without departing from the spirit ot myv invention and I reserve the right tomalie all such as fairly fall within the scope'ot the followingc'laims,

I claim as my invention:

1'. In a shuttle, a. body having a chamber,

direction of advance of the filling, one of said plates being yi-eldingly pressed towards the other plate andbeing adapted for limited movement in the same direction as that of the thread,

In-a=shuttle, abody'having a chamber, and a tensioning device for-the filling as it leaves said chamber, including angularly disposed horizontal tensioning plates converging inthe direction'ot advance of the filling, one of said plates being fixed and the other yieldingly pressed toward said fixed plate and slidable in the direction of its length. 7

i. In a shuttle, a" body and a tensioning devicefor the filling as it leaves said chamber includin a rotatable and vertically disposed substantially cylindrical member disposed at one side of the chamber and about which the filling passes, and oppositely disposed tensioning plates cohaving a chamber,-

and a tensioning device for the filling as it leaves said chamber, including. a revoluble member about which the filling passes, and

a pair of angularly disposed tensioning.

plates mountedindependently of tlierevolnq ble mem and coacting with the filling during said passage.

7. In a shuttle, a body having a'chamber,

and a tensioning device for the fillinga's it leaves said chamber, including aapair of acting fiat tenslomng plates-disposedin an gular relation, one of said" plates being floating and the other fixed;

8.- In a shuttle, a body havinga chamber-,

and a tensioning device fort-he filling I asit' leaves said chamber, including a pair of co'-' acting tensioning plates oneof said plates beinghinged for floating actionand yield ingly pressed toward the other plate.

9; In a shuttle, a body having a chamber,

and a. tensioning device for the filling as it:

leaves said chamber, including a pair ot coacting tensioning plates, one of said plates being fixed and the other fioatingWit-h-limited longitudinal movement, and means for yieldingly pressingsaid floating; plate" to ward said fixed plate.

10. In a shuttle, a body having'a chamber,

and a tensioning: device for the filling as it leaves said chamber, including apair of co-' acting tensioning plates, one of said plates being fined and the otherplate' loosely mounted to permitalimited longitudinalfloating movement, and a spring aictingi against-said pivote'd'plate to yieldingly press the same toward said fixed plate.

11. In a shuttle, body havingia chamber, and a tensioning device for the fillingi'as it leaves said chamber, including a roller around which the filling passesa'nd a pair.

of co-acting tensionin plates fittingithe' roller, one of said'plates being providedwith a'threading slot to facilitate the insertion of the fillin'g'between said plates.

12. In a shuttle, a body havinga chamber; and a tensioning device forthe filling as it leaves said chamber, including angularly disposed oppositely inclined top and bottom tension plates arranged in a horizontal direction extending transversely ofthe'chamb'er and converging in the direction of the advance of the filling, the top plate being rigid and fixed and the bottom plate yieldingly pressed toward the top plate and movable in the direction of its length.

13. In a shuttle, a body having a chamber, and a tensioning device for the filling as it leaves said chamber, including a roller mounted near one side'of the chamber and around which the filling is trained, said roller having an outwardly extending inclined flange at the top, and fastening means engaged Within the same, and transversely disposed tensioning plates in the chamber cutto conform to the periphery of the roller.

14. In a shuttle, a body having a chamber, and a tensioning device for the filling as it leaves said chamber, including a plurality of co-acting tensioning plates, at least one of said plates being fixed, and at least one of said plates being loosely pivoted to permit floating movement thereof bodily in the same direction as that of the thread.

15. In a shuttle, a body having a chamber, and a tensioning device for the filling as it leaves said chamber, including a pair of coacting tensioning plates, one of said plates being fixed, a pivot pin on which the other plate is loosely pivoted for movement in substantially the same direction as that of the thread, and adjustable spring means for holding the plates yieldingly pressed together.

EDWARD C. LOWE.

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