US452849A

US452849A - Picking motion of looms foe weaving

Info

Publication number: US452849A
Authority: US
Publication date: 1891-05-26
Anticipated expiration: 1908-05-26

Description

(No Model.) 2 Sheets-Sheet 1.

J. 85 A. MOSS. PIGKING MOTION 0F LOOMS FOR WEAVING.

No. 452,849. Patented May 26, 1891.

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j/ia/m 1M (No Model.) 2 Sheets-Sheet 2.

J. & A. MOSS. PIGKING MOTION O]? LOOMS FOR WEAVING. No. 452,849. Patented May 26, 1891 .F .6: E WI TNEEEE ENIURS: 7 WA KXWWZ- w =%ma%:n

iTED STATES PATENT OFFICE.

JAMES MOSS AND ABRAHAM MOSS, OF HEBDEN BRIDGE, ENGLAND.

PlCKlNG-MOTION OF LOOMS FOR WEAVING.

SPECIFICATION forming part of Letters Patent No. 452,849, dated May 26, 1891. Application filed December 31, 1890. $erial No. 376,336. (No model.) Patented in England February 18, 1890, No. 2,582.

To aZZ whom it mag concern.-

Be it known that we, JAMES Moss and ABRAHAM Moss, citizens of Great Britain, residing at Hebden Bridge, in the county of York, England, have invented certain new and useful Improvements in the Picking-Motion of Looms for WVeaving, (for which we have obtained a patent in England, No. 2,582, dated February 18, 1890;) and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention has reference to the picking mechanism of looms for weaving, our object being to dispense with the picking mechanism at present employed and to substitute therefor an entirely new and difierent form of mechanism for sending the shuttle across the loom, consisting of a compressed spiral or other form of spring, together with means for compressing and releasing such spring.

In order that our invention may be more fully understood, we have annexed hereto drawings illustrative thereof, to which reference is herein made.

Figure 1 is an end elevation of the sley or going part of a loom, showing one form of our improved apparatus applied thereto. Fig. 2 is a back elevation, and Fig. 3 a plan view, of same. Fig. 4 is a detail of a portion of our said improvements. Fig. 5 is a plan View showing a modification of the form of the spring for operating the shuttle and the parts which co-operate with the spring. Fig. 6 is a vertical section of the parts shown in Fig. 5.

Referring to the drawings, the same letters of reference indicate corresponding parts throughout.

A represents part of the frame-work of the loom; B, the crank-shaft, connected by crankarm 0 to the sley or going part D, which is carried by lathe-swords E, all of said parts being arranged and operated in the ordinary manner.

Supported by the brackets to, cast to or projecting from the plate a, fixed to the back of the sley, and to which the crank-arm C is connected, is a vertical pin or stud b, to the lower end of which is secured a short lever-arm 0, provided with slot 0, through which passes a fixed stud cl, projecting up from the bracket d", bolted to the frame of the loom. Mounted on the same vertical stud b is another short lever-arm e, to the extremity of which is connected one end of a horizontal rod 6', whose opposite end is secured to a hook-ended finger e capable of engaging, when moving in one direction, with the teeth of the ratchetwheel f, which is mounted on a stud f, supported on the under side of the shuttle box or sley by brackets f On the same stud f is a star-wheel f having only half the number of teeth or projections possessed by the ratchet-wheel f, which, when the said ratchetwheel f is partially rotated, as afterward explained, successively engage with the extremity of a finger g,'(shown more plainly in Fig. 4,) secured to a fiat spring g, attached to the bracket 9 bolted to the back of the sley, the said spring g allowing the finger g, when the teeth on the ratchet-wheel f come in contact therewith, to be depressed, so as to Withdraw the sneck h on said finger clear of the catch or lug t', projecting from the side of the picker-lever 70, leaving such lever 76 free to be operated by the spiral spring 172, which throws the shuttle n across the loom. The picker-leverk is mounted on a stud supported by brackets Z on the under side of the sley. The spiral spring m is placed upon a shaft or rod m, secured to a bracket 0 at about the center of and in front of the sley, one end of said spring abutting against a collar 19, secured by set-screw to one end of the rod m, while the opposite end of said spring abuts against the flange 0", which is free to move end- Wise on rod m, such said flange r and another flange r being carried by two parallel rods 1", connected by the bent arm 3 to the pickerlever is. When the picker-lever isin the position shown in Figs. 1 to 4, the spiral spring is compressed between the flange r and collar 19, so that immediately the said picker-lever 7c is released by the revolving star-wheel f removing sneck h from catch 2', the force of the spring is exerted upon the flange 9", which is forced thereby endwise toward the bracket 0, and by means of the rods 0", flange T and arm 8 draws the picker-lever suddenly toward the inner part of the 100111 with sufficient force to send the shuttle across the loom to the the sley.

opposite side thereof. The picker-leverk carries a metal or other picker t, provided with an india-rubber or other yielding cushion for throwing the shuttle out of the box and also for receiving it when sent home across the loom.

For the purpose of forcing back the pickerlever 70 and compressing the spring 171. after each lever has been operated and sent the shuttle across the loom, as explained, we employ a bent lever u, mounted on the vertical stud b, which said lever extends through slots or openings at the back and in front of Said lever a, after each pick has been made, is placed into the position shown in dotted lines of Fig. 3 by the action of the fixed stud (Z, working in the slot of the leverarm 0, which operation is performed as the sleybeats up the weft-thread. Similar mechanism to that above described is arranged at the opposite side of the loom for operating the picker-lever in the opposite shuttle-box.

In order to break the force of the spiral springs m when released and prevent concussion and breakage. of the parts, we place on the rod m and against each side of brackets india-rubber or other suitable yielding collars c, which act as cushions for receiving the flanges 7' when impelled against them by the springs.

The action of our improved picking mechanism, as above described, is as follows: When the loom is set in motion and the sley or going part oscillated backward and forward, the vertical stud b alternately approaches and recedes from the lower fixed stud d, which lies in the slot 0' of the short lever-arm c, causing such lever-arm to be oscillated or moved upon its fulcrum b as it is carried back and forward by the movement of the sley, thereby giving a corresponding oscillating motion to the said stud b, and also to levers e and u fixed thereon. In the several figures on the drawings the sley is shown at the extent of its backward movement away from the cloth and the picker-lever 7c held in position ready for throwing the shuttle across the loom afterthe next beat up of the sley. Assuming, therefore, that the sley is making its return journey, so as to beat up the weft, the lever-arm e commences to move in the direction of the arrow 6 (see Fig. 3,)

and on the arrival of the sley at the full extent of its forward movement the said leverarm has completed its motion in the direction of the arrow and forced the end of finger c? over the ratchet-wheelf, placing the hooked portion thereof in position to engage with a tooth on said ratchetwheel, so that when the sley and lever-arm e commence their return or backward movement the hooked portion of the finger 6 moves such ratchet-wheel a distance equal to one tooth, thereby partially rotating the stud f and likewise the ratchet-wheelf thereon. The said ratchetwheel f is shown as having bnly three teeth, or half the number possessed by the ratchetwheel f, this being designed so that the pickerlever shall only be operated every other pick, or alternately with the operation of the pickerlever at the opposite side of the loom. The movement of the ratchet-wheel f a distance equal to two of its teeth brings a tooth on ratchet-wheel f into contact with the finger g, which, by reason of its connection to the flat spring g, is thereby depressed and removes the catch t' clear of the projecting sneck h on the picker-lever, so as to set the spring m free, whereupon the shuttle is sent across to the opposite side of the loom. A holding-catch f pivoted to the back of the sley or shuttle-box, prevents any return movement of the ratchet-wheel after being partially rotated by the hook-ended finger 6 At the next beat up of the sley the pickerlever is forced back into the position shown in the drawings by means of the bent lever to, which, as before described, is moved to the position shown in dotted line in Fig. 3 by the action of the fixed stud don the slotted leverarm 0 as it is moved backward and forward by the sley, the projecting sneck h on the picker-lever is riding over and depressing the finger g until it is next engaged and locked by the catch 2 thereon. Simultaneously with the act of placing the picker-lever into position, as just described, the spiral spring m is also compressed between the flange r and collarp, fixed on the end of rod m.

Fig. 5 shows the picker-lever 70 as forming a spring in itself, being composed of a blade of strong spring-steel and connected to a bracket secured on the shaft F, upon which the sley oscillates. WVhen the lever 70 is released by finger g being depressed and sneck h moved clear of catch 2', projecting from the spring-lever, the energy or force stored up in the said spring-lever 76 by being bent out of the perpendicular immediately exerts itself, and the lever moves suddenly forward in the shuttle-box to send the shuttle across the loom. The picker-lever is then moved back to the position shown, on the backward movement of the sley, by means of lever G, operated through the medium of the connectingrod 10, (see Fig. 6,) bell-crank lever to, and bracket 10 bolted to lathe-sword E.

The spring picker-lever may be employed in place of the springs shown in Figs. 1, 2, and 3.

The improvements herein fully described may be applied either under or above the loom.

By the employment of the mechanism herein fully shown and described the picking tappets and bowls, picking arms and straps, and other mechanism usually employed therewith for sending the shuttle across the loom are of leather straps alone a considerable saving in cost for renewals is effected, while the mechanism above described and comprising an improved picking-motion is certain, effect ive, and smooth in action, and as it is operi now dispensed with, and in the abandonment well known mechanical devices without de-- parting from the main features embodied therein.

We claim as our in vention 1. The combination, with the picker-lever 7c and a spring operatively connected thereto and adapted to throw the shuttle, of the 0scillating lever it, operated by the sley and adapted to draw back the picker-lever and spring, a spring-supported finger g, engaging with a sneak on the picker-lever, and a star-' wheel operated by the sley and adapted to release the said finger at intervals and permit the spring to actuate the shuttle, substantially as set forth.

2. The combination, with the picker-lever 7c and a spring operatively connected thereto, of the springsupported finger g, engaging with asneck on the picker-lever, the star- .wheel for releasing the said finger at intervals, the ratchet-wheel having twice as many teeth as the star-wheel and secured on the star-Wheel shaft, and a finger operated by the sley and adapted to engage with the said ratchet-wheel, substantially as and for the purpose set forth.

3. The combination, with the picker-lever 7c, of the bent lever u, securedon shaft 5, the oscillating sley provided with a bracket for supporting the said shaft, the slotted lever 0, also secured on the said shaft, and the stationary pin cl, supported by the frame and engaging with the said slotted lever, whereby the lever u may be operated to draw back the picker-lever, substantially as set forth.

4. The combination, with the retractible picker-lever 7c, of the stationary spindle m, provided with a collar 29, the rods r and flanges secured thereto, the spring m between the collar 19 and one of the said flanges, and the rod 3, connected to the other said flange and to the said picker-lever, whereby the said spring may be compressed when the pickerlever is drawn back, substantially as and for the purpose set forth.

In testimony whereof we affix our signatures in presence of two witnesses.

JAMES MOSS. ABRAHAM MOSS.

v\Vitnesses:

ARTHUR B. CRossLEY,

Swims Road, Halifax. ERNEST P. NEWTON,

Moorfielcl Villa, Halifax.