US963871A

US963871A - Means for clamping and stretching warp-threads.

Info

Publication number: US963871A
Application number: US39588407A
Authority: US
Inventors: Howard D Colman
Original assignee: Barber Colman Co
Current assignee: Barber Colman Co
Priority date: 1907-10-04
Filing date: 1907-10-04
Publication date: 1910-07-12
Anticipated expiration: 1927-07-12

Description

H. D. GOLMAN. I MEANS FOR GLAMPING AND STRETGHING WARP THREADS.

APPLIOATIONIILED OCT. 4, 1907.

Paiented July 12,1910.

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MEANS FOR GLAMPING AND STRETGHING WARP THREADS.

APPLICATION I'IKLBD 001'. 4, 1907.

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To all whom it concern." Be it known that I, Howsnn D-.COLMAN, a citizen of the-United States, residing at Rockford, in the count of Winnebago and State of Illinois, haveinvented certain new and useful Improvements in Means for Clamping and Stretching Warp-Threads and the Like, of'which thei'ollowing is a specification.

y I willdescmbe the invention as applied to the warp-supporting frame of a textile machine, such as the warp-tying machine disclosed inmy British Patent No. 10,484, of 1905, although it will be understood that the invention is not'limited to this specific use.

In' the accompanying drawings, Figure 1 1s a fragmental under side view of a warp carriage embodying the features of my invention. Fig. 2 is a sectional view taken on the plane ofdotted line 2 2 of Fig. 1. Fig.

3 is an end elevation of the carriage.- Fig. 4 is a fragmental under side-view of the carriage with portions thereof in section. Fig. 5 is a view similar to Fig. 2, but showing the clamping and stretching means in the inoperative position. Fig. 5 is taken on v dotted line 5 5 of Fig. 3.

The framework'of the'warp carriage to which my invention is herein shown as applied, comprises the yokes 1, the longitudinal rods 2, and the channel bars 3 and 4, said channel bars extendinglon itudinally of the carriage at opposite sides t .ereof. The carriage is supported in the warp: yin

machineupon rollers 5.' The channel ar 3 forms the framework of the warp-clamp 6. Said channel'bar has a longitudinal partition or wall. 7 therein, upon the upper side of which wall is a longitudinal rib 8. A.

clamp bar 9 mounted in the channel bar 3 is provided with a similar rib 10. The warp 1 threads-are inserted between the partition 7 and the clamp bar9"by means of an insertion barll, the op osite sides of which are covered with a suitable yielding material 12, such as rubber. The clamp: bar 9 is of a hand lever 16 pivoted on the channel bar 3 at 17 The lever 16 is connected with Specification of Letters Patent. Patented July 12, 191%. Application fileglQciber 4, 1907. Serial No. 395,88%.

the operating bar 13 through the medium of a toggle link 18; One end of the toggle link 18 is connected with a block 19 ad ustably attached to the operating bar 13 by means comprising, in this instance, screws 20 extending through said operating bar and through elongated openings 21 in said block.

To insure a firm and rigid connection between the block 19 and the operating bar 13, the contacting surfaces of said parts may be ,serrated as indicated at a? in Fig. 1. Springs (nbt here shown) are provided for moving the clamp bar 9 into the inoperative position.

In Fig. 5 the clamp bar 9 is shown in its elevated and inoperative position. When the hand lever 16 is pivotally moved into the position shown in Fig. 2 the operating bar 13 is moved toward the left, forcing the clamp bar 9 downward into engagement with theinsertion bar 11 and the warp threads bent over said bar. The toggle link 18 is arranged to throw slightly beyond a straight line joining the pivot 17 of the hand lever and the pivotal connection between said link and the block 19, in order to lock the clam in the closed position. i

The warp clamp 22 at the opposite side of the warp-carriage may be of the same construction as that just described.

The means for placing tension upon the warp threads after they have been clamped in the clamps 6 and 22 is located, in thisiinstance, adj a'eent to the clamp 6. In the construction herein shown I provide a bar 23 mounted in the channel bar El between the partition 7 and the lower wall of said channel bar. The means herein shown for pressing the bar 23 against the sheet of threads extending between the clamps 6 and 22, to place tension thereon, comprises a bar 24 slidably mounted in the channel bar 3 and having inclined teeth 25 adapted to engage similar teeth 26 on the bar 23; The

ar 24 is slid by means of a hand lever 27 connected to said'bar by means of a'toggle link 28, the latter bein connected at one end to a blmk 29 adyustabdy attached to the bar 24;. The adjustable connection between the block 29 and the bar as is similar to that between the

parts

19 and 13. The outer edges or corners of the partition 7, the bar 28 and the lower wall of the channel bar 3 may be rounded, as shown in Fig. 3, to prevent cutting of the threads when tension is BEST AVAILABLE COPY placed upon them. Adjacent to the warp clamp 22 is located means for deflecting the threads from a straight line between the clamp 22 and the tensioning means. Said deflecting means com rises, 1n this instance, a serrated metallic ri bon 30 longitudinally slidable in a bar 31 fixed in the carriage frame. One end of the ribbon 30 is connected to a crank arm 32 (Fig. 1) upon one end of a rock shaft 33, a hand lever 34 (klsi 3) being fixed to the other end of said s a t.

In use, the warp threads are clamped in the clamps 6 and 22 by placing said threads in said clamps and moving the operating lever 16 of each clamp into the position shown in Figs. 1 and 2. Tension is then placed upon the threads by moving the hand lever 27 into the position shown in Fig. 2, the bar 23 being thereby pressed against the threads. The deflecting ribbon 30 is then moved longitudinally ,to the left (Fig. 1) to defiect the threads slightly from a straight line between the clamp'22 and the lower slde of the channel bar 3. o

It will be apparent to those skilled in the art that various mechanical embodiments of the invention arepossible, and I therefore do not wish to be limited to the arrangement and construction herein shown.

I claim as my invention:

1. The combination, with two stationary clamps adapted to hold threads against movement, of means for placing tension upon a sheet of threads held by said clamps.

2. The combination, with two stationary thread clamps ada ted to hold threads- I against movement, 0 means located adjacent to one of said thread clamps for placing tension upon a sheet of threads 'held by said clamps.

3. The combination, with two stationary thread clamps, of a member over which a sheet of threads held by said clamps may extend, andmeans'gfor laterally moving said member to place tension upon the threads.

4. The combination, with two thread clamps, of means arranged to be moved against the sheet of threads extending between said clamps, for lacing tension u on said. sheet and means or moving the rst mentioned means against the sheet of threads. .-5. The combination, with two thread clamps, of .a bar arranged to .be ressed against the sheet of threads extending between said clamps, for placing tension thereon and means for ressing said bar against the sheet of threa s.

6. The combination, with two stationary warp clamps adapted to hold a sheet of clined teeth, and means for sliding said open ating bar.

8. A warp carriage having stationary warp clamps at opposite sides thereof adapted to hold a sheet of threads against movement, and means for lacin tension upon a sheet of threads held y' sai clamps.

9. A warp carriage having stationary warp clamps at opposite s des thereof adapted to hold asheet of threads against movement; and means adjacent to'one of said clamps for lacing tension upon a sheet of threads held y said clamps.

10. A warp carriage having stationary warp clamps at opposite sides thereof adapted to hold a sheet of threads against movement, and means below and ad acent to one of said clam s for' placin tension upon a sheet of three s held y sai clamps.

11. A warp carriage having war clamps at opposite sides thereof, a. mem er supported below and adjacent to one of said clamps, and means for tpressin said member against the sheet 0 three. extending between said clamps for placing tension upon the threads.

12. A warp clamp comprising a stationary member having a rib thereon, a movable clamp member having a rib thereon, an insertion bar having yielding portions adapted to be placed between said ribs, and means for moving said movable clamp member..

13. A Warp clamp com risingastationary member having a rib t ereon, a movable member having a rib thereon, inclined teeth on the rear side of said movable member, an operating bar having inclined teeth adapted to co-act with the inclined teeth on said movable member, means for moving said operating member, and threadinsertin means.

' 14. T e combination with means for holding one end of a sheet of threads, of a clamp comprising a channeled member having a longitntiimilfipartition therein, sheet-clamp- I si e of said partition, and sheet-tensioning in means in said channeled'inember at one i means in said channeled member at the other C. E. Bnmon, LOUISE A. Comm.