US113028A - Improvement in stop-motions for warping-machines - Google Patents

Description

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EDWIN H. oUMMINes'oF LHvvIsroN, MAINE, AND cRIMsHAW Havas ANDv 'rHoMAs HNrWrsrLn, or AooHINeroN, ENGLAND.

Letters Patent N0.113,028, dated March 28, 1871.

IMPRVEMENT IN STQP-MOTICJMS FOR WARPYINGMACHINES.

The Schedule 4referred to in these Letters Patent vand. making part 'of the same.

yWsTLE, of Accrington, England, have invented a new and useful Improvement in Stop-Motion for Warping- Machines; and we do herebydeclare that the following is a full and exact description ofthe same,zrefer ence bei'ngjhad to the accompanying drawingA and to the letters of reference marked thereon.

This invention relates to` that'class of warpiugmachines which is provided with devices for stopping 'the motion of the machine whenever a thread breaks,

and consists in certain details of construction, which wilLbe fully described hereinafter.

In the drawing- Figure. 1 represents a front elevation;

Figure 2, au end elevation partially in section Figure 3, a partial view ofthe opposite end iu perspective; and l Figure 4, the drop-wire and sectional view of the toothed wheel, with collarf f Toenable others skilledin the art to make aud use our invention, `we will now proceed to describe fullyits construction and manner of operation.

Ay A represent thev framework of the machine, which may be constructed'of any proper form and material.v The machine is provided, of course, with the usual devices for winding the thread from the spools onto the beam, but these need not be particularly described.

B represents a beam or bar, which extends across the machine below the side frames, and is provided with longitudinal slots extending through it, as shown.

C represents a bottomless box, located beneath thebeam B, arid provided with inclined sides c c, as shown.

c' cf represent projecting horizontal bars at each end, which rest upon ways d d,- suitably attached to the in# Iier sides of the side frames A. s

This box receives a reciprocating or oscillating motion from the rock-shaft E by means of arms e e, as

shown. 1

The shaft E turns-in suitablebearings inthe side frames, and receives its motion from the drum or roller F, which is provided at one end with a cam-groove, which operates, by means of a friction-roller, the rod e1, attached to the arm e2.

The cam-groove maybe of any proper form to give the desired movement.

G represents a bar, having one or more ledges or rabbets upon one or both edges, which is located below the oscillating box C. It is supported upon the rock-shaft G by means of arms g y.

The shaft G'-`liang s in suitable bearings depending from the side frames, and hasattached to one end, which extends outward beyond its bearing, an arm or lever,'g, the lower end of which is bent inward at right angles, and Aformed with an. inclined face, as shown. It has also attached to it au arm, g2, to the lower end ol' which latter is attached one end of a spring, g3, the

other being secured to the frame, as shown..

.H represents a U-shaped spring-bar, the end of the short arm h of which is rigidly secured to one of the lower beams of the frame. Its long arm h1 istwisted on itself at right angles at a point near its center, and it terminates above in a'suitable handle.

This long arm or handle vh moves toward and from the frame oua slotin the angle-iron'hz.

'The outer end of the slot is provided with a recess, h, in which the arm h1 rests when the machineis Vin motion. y v p H' represents abar, rigidly attached to the arm hl at right angles thereto, which projects inward toward the frame' beneath the pawl I. v Its upper edge is iuclined at its free end, for the purpose of lifting .the pawl when the arm hl is drawn outward.

p' J represents a rod'or bar, which extends across the frame, resting in suitable bearings at each end,'and so arranged as to be. capable of a longitudinal movement thereon.` One end lis connected to theA arm hl by means of pins, whichextend beyond it on each side, and the other end is provided with an arm, j, for shipping the belt, which is constructed in the usual well-,known manner. v

v K represents ia trough, which is supported in vany proper manner in line beneath thebottomless box O, which is designed to receive the drop-wires that fall when threads are broken.

s L repres'ents a toothedwheel, loose upon the drivingLshaft E',1vhich bears against the`collar l, attached to the shaft so as to revolve with-it. s M represents a drop-wire, constructed of a single piece of wire bent in oval or link-shaped form, which is provided with an opening upon one side, las shown.

The operation is as follows: .s Thethread is wound in any proper manner fromthe spools onto thewarper-beam. In itspassagefrom the former to the latterit passes over the slotted beam B. Atthis point the drop-wires are placed upon the threads by means of the opening in the sides, and, resting in the slots of the beams, they are thereby held from moving with the thread. Whenever a thread becomes broken from any cause, its wire of course, be-

ing no longer sustained by it, falls through the slot of the beauiB into the reciprocating bottomless box O, situated immediately below. Its movement is here stopped, however, temporarily, for, although the box 0 has no bottom, the bar G, being located j ust below,

catches and sustains it in the depression orledge upon.

its edge until the backward movement of the box has forced the bar G backward by pressing the wire, which still rests partially within the box.

The movement of the bar G causes its arm g1 to press against the arm 71.1 and free it from the recess h2 in the slotted bar, in which it rests when the machine is in operation.

The movement of the bar G is facilitated also by the operation of the spring y. The spring of arm g2 is to keep the inclined face of arm g1 against arm h1, so that it will follow arm 71.*, thereby moving bar G back far enough to allow the wire to drop through into its receptacle. rI he movement of the arm h1 is also facilitated by its own spring, which exerts its force to draw it on toward the frame. l

The movement of the arm h1 causes the operatingbelt at theA opposite end of the machine to he transferred from the fast to the loose-pulley through the medium ofthe bar J, with its arm j, and, at the saine time, also permits the pawl I to fall Vby moving from beneath it the projecting end of the arm H. When the pawl falls, it, of course, comes in contact with the toothed wheel L, andinstantly stops its movement. In order to prevent the machinery from being so suddenly stopped as to cause breakage this wheel is made loose upon the shaft, and is connected to it only by the friction-collar, which revolves with it. By means of this construction all undue strain ofthe machinery is prevented.

It will thus be perceived that the breaking of a thread permits a wire to fall, which comes in contact with the bar G as the box C moves back and forth, and, forcing it back, thereby operates the arm h1, which, by means of its connections, shifts the belt and lets fall the pawl, which stops the motion ofthe machine.

Having thus fully described our invention, i What we claim as new, and desireto secure by Letters Patent, isl 1.' The oscillating box C, constructed and arranged substantially as described.

.2. 'Ihearmr g1, provided with its tapering face, in combination with the arm h1, as described, for the purpose set forth.

3. The combination of the box 0 and bar G, as-de scribed.

4. The combination of the toothed wheel L, friction-collar l, and its adjusting-nut, with the pawl I and the arm h', or its equivalent, for operating the latter, as described.

5. The combination ofthe slotted beam, oscillating box, bar G and its connections, with the larm hl and its connections, as described.

6. The described method of stopping the motion of a warping-machine by means of a wire held by an oscillating box coming in contact with a beam or bar which operates the shipping-arm.

This specification signed and witnessed this 17th

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