US86651A - Improvement in looms for weaving pile fabrics - Google Patents

Description

UNITED STATES PATENT QEEIcEo EZEKIEL K. DAVIS, OF NEW YORK, N. Y.

IMPROVEMENT IN LOOMS FORKWEAVING PILE FABRICS.

Specification forming part of Letters Patent No. 86,651, dated February 9, 1869.

10 all whom it may concern: Beit known that I, EZEKIEL K. DAVIS, of

. the city, county, and State of New York, have invented and produced an Improvement; in Looms for Weaving Pile Fabrics, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings making part of this specifcation: y

This invention relates to a mechanism or device for working the wires in weaving pile fabrics, in which the wires are drawn from the cloth. and inserted in the warp-shed in rotation 5 also, to an arrangement of the shuttlebox on one side of the loom, whereby it is caused to slide upon the `lay of the loom instead of being rmly secured to the lay, as in ordinary looms; and, also, to an improved arrangement for working the cams that Voperate the heddle-fraines of the several warps.

Figure l is a general plan of the improvements and partsof the loom to which they are attached. Fig. 2 is a front elevation of the same. Fig. 3 is an end elevation. Fig. 4 is a side elevation of the device for securing the wires during the process of drawing and inserting. Fig. 5 is a plan of section of said device. Fig. 6 is an end elevation of the same. Fig. 7 is a plan, showing the relative positions of sliding shuttle-box, slotted bar, and wirebox `when the wire is being drawn, and the lay at the extreme forward point of its beat. Fig. 8 is a plan of the relative positions of sliding shuttle-box, slotted bar, and wire-boxl when the lay is thrown back and the wire being inserted in the shed.

Similar letters of reference` in the various figures indicate like parts.

The parts of the loom shown in thc drawings, and herein speciiied, form no part of my invention, but are simply shown. to exhibit the connection of the improvement with the body of the loom.

The term wire-motion is commonly applied to the mechanism employed for drawing and inserting the wires; and when it occurs in this speciiication will have that application,

y A is a slotted bar in which the wires slide, and by which they are guided during the process of drawing and inserting. The slotted bar A is supported by the arms a a, whichv are attached to the rocker-shaft'b, which has suitable bearings on the frame of the loom. rlhe motion required to transfer the wire, after it is drawn, from the line of the cloth to the proper position for entering the shed is imparted to the slotted bar A by means of the cam B acting upon the lever c, which is secured at one end to the rocker-shaftb.. The spiral spring d serves to hold the rollerl of the lcver c in contact with the face of the cam B during regular action, and, in case of any obstruction to the backward motion of the slotted bar A, permits said bar to remain forward, and prevents breakage. The cam B is of such construction as to allow the bar A to remain stationary while the wire is being drawn from the cloth. This cam is secured to one end of shaft e, which is operated by suitable gearing connecting itwith the driving pulley or gear. C U is a steel plate arranged to slide in and traverse the full length of the slotted bar A, and suports the hook f, spring g, lever h, spring t', and plate j, which securely hold the wire during the process of drawin g at. inserting. A section of the wire with a su able head, lr', is shown in Fig. 4, and it will be seen that the hook f, held in position by the spring g, secures the wire for the purpose of drawing, while the lever It held by the spring t' presses against the lower edge of the wirehead la and holds it in its proper position in the slotted bar A. When the wire is being driven into the shed the plate j presses against the back of the wire head k for the purpose of driving. The traverse-motion required to draw and insert the wires is imparted to the steel plate C C and its connections by means of the traverse-cam D acting upon the lever E, which transmits the motion to the plate C C through the arm F, one end of which is secured to the lever E, the other to the plate C C. In order to support theA end of the wire, when it is drawn, a pin, l, is inserted in the slotted bar A near the end next to the body of the loom, as this pin, should it remain at all times inthe bar, would interfere with the passage of the plate C .Cpwhen it isdriven up to insert the wire. It is secured to one end of the long spring m on the side of the bar, and as the plate C C is moved forward to drive the wire a pin or stud, n, attached to said plate, comes in contact with the spring m at a point shown yat o in Figs. 1, 2, 7, and 8,

presses it out sufficiently to remove the pin Z from the slot 'in the bar A, and allows the plate to complete its forward motion without obstruction. When the plate C C is traversing backward, and drawing the wire, the stud a relieves the spring m at the point o, before mentioned, and the piu L enters the slot in the bar Ain time to support the end of the wire as it comes from the cloth. The positions of the spring m and pin l, both when the plate C C and its connections are in position to seize a wire, and when the wireis being Ydriven into-the shed, are respectively shown in Figs. 7 and 8. p p, shown in Figs. l, 7, and 8, represent the wires in the cloth or pile. G is the wire-box, so called, which holds the wire-heads in a proper position. S is av slot in the top of the wirebox Gr, into which the hook f of the plate C C drops to sieze a wire as the bar A is brought forward for the purpose of receiving and drawing the Wire. The plate j of the steelplate C G, besides serving to push the wire in inserting, also presses against the heads ofthe wires in the box G when the bar A is returning from the line of inserting to that of drawing, and keeps them true, and in proper position to be seized in turn by the hook f. The position of the plate to accomplish the object is .partially shown in Fig. l. When the wire is driven by the plate C C and its connections as far into the shed as is required, its head is relieved from the clutch of the hook j and lever h by their being pressed against an attachment to the wirebox, and in the return of the bar A to the line of drawing they respectively pass over and under the wire-box G until they arrive at the slot s, Where they seize upon the wirehead presented there, and hold it in the manner shown in Fig. 4 as long as is required to draw and insert the wire.

In the proper working of improved wire motions for pile fabrics it has been considered necessary to detach the shuttle-box from the lay on the side of the loorn that the wires are drawn and inserted, in order to give the wire motion room for its operation.

A part of my improvement consists in so arranging the shuttle-box H as to slide upon the lay, so that when it is necessary to throw and receive the shuttle the box is in line with the race of the lay, the same as though v Stard its motion while the layn goes forwardl to .Y Y

complete its beat, and as the lay begins to recede, gradually increases the backward motion ofthe box until it is again in line with the race of the loom, when it works with the lay the same as though it were secured to it, until it again arrives at the point of retarding in the forward beat.

The common method of operating cams for working the heddle-frames for the several -warps of pile-fabrics has been to secure the cams all to one shaft, and the different motions required are attained by the -construction of the cams, either double or single, as the case requires.

My improvement consists in working the ne Warp or cloth-making heddles by cams K L, driven by the compound bevel-gears M N O R, the cams K L being secured to the gear O, which revolves on the shaft e in an opposite direction to that of the shaft e, making one revolution to two of said shaft.

The cams P Q which operate the pile and stuffing warps are secured to the main shaft e, and thereby make two revolutions to one of the cams K L, and revolve in an opposite direction to said cams.

What claim as my invention, and desire to secure by Letters Patent, is-

1. The slotted bar A, in combination with the plate C C, hook f, spring g, and spring i, lever X, and plate j, constructed and arranged substantially as described, and for the purpose set forth. l

2. The pin b, spring m, and stud u, arranged and combined with the slotted bar A, for the purpose of supporting the wire while in process of drawing and inserting, substantially as described, and for the purpose specified.

3. The sliding shuttle-box H, combined with arms X X, rocker-shaft t, lever u, and campath J, substantially as described, for operating the shuttle-box.

4. The bevel-gears M N O R, arranged substantially as hereinbefore described, for the purpose specified, of operating the heddlecams, as set forth. y

EZEKIEL K. DAVIS.

v Witnesses:

GEORGE G. WEIGHT, THOMAS A. CAMPBELL.

Images