USRE9270E - Ments - Google Patents

Description

L t e a h 4 t e e h S 3 J. 0-. DUOKWORTH;

Assign'or, by means assignments, to G. Gammon.

Loom' 1 No. 9,210. Reissued June 29, I880.--

3 Sheets-Sheet 2.

J. 0. DUGKWORTH,

or, by mesne w:

;-ments, to G. Cnoxnon.

Loom.

9,210. Reissued June 29,1880.

.Wz'fnesses.

provements monly called the relate to the me ries of shifting for sh combi UNITED STATES PATENT OFFICE.

JOHN C. DUCKWORTH, OF NEW YORK, MENTS, TO GEORGE OROMPT SPECIFICATION forming part of Reissued Letters Patent No. 9

formerly of New Haven in Looms for Figure 1 is an improved loom.

through one side of t ical plane indicated by line a: w in Fig. 1', and looking toward the is a transverse section through the loom, taken in the vertical plane indicated by line 2 z in Fig. 1, and looking loom. Fig. 4 is taken in y 3 Fig. 1. Fig.

of the loom shown in Fig. 1.

view, box

One of my Mount Carmel, in the county of and State of Connecticut, have invented certain new and useful Improvements Weaving do hereby declare that clear, and exact description thereof, reference being bad to the accom making a part of this specification, in whichthe vertical showing a device applied to the shuttlerod for relieving it should the shuttleboxes meet with undue resistance ward movements.

Similar letters of reference indicate corresponding parts in the several figures.

My said invention consists of several imsome of which relate to the mechanism for forming and shifting the shed, comharness-motion, and others chanism for shuttleboxes, whereby the proper shuttle is selected and brought to its place to be thrown.

Both classes of improvements may be used in the same loom, used separately in mechanism being a looms.

improvements in the mechanism ifting the shuttle-boxes consists in the nation and arrangement of a springlatch-releasing mechanism with the vertical rod which supports the land the connections which give motion to the rod, in manner substantially as hereinafter '50 more fully described,

LOOM.

Original No. 137,898, dated April 15, 1873. Application for reissue filed combination being JOHN G. DUGKWORTH,

and State of New York,

Fancy Fabrics; and I the following is a full, ism panying drawings,

elevation of one side of the Fig. 2 is a transverse section the loom, taken in the verconnections with the rear of the loom. Fig. 3

toward the front of the an enlarged sectional view plane indicated by line 5 is a top view of those parts Fig. 6 is a front 0. Duckworth patent.

in their upof having each of the obtained.

and shifting the levers are moved operating theseform the shed by as shown, or they may be different looms, the shuttle For instance, dapted to work in Jacquard shifting shuttle-boxes of the levers; and this the arrangement and N. Y., ASSIGNOR, BY MESNE ASSIGN- N, OF WORCESTER, MASS.

,270, dated June 29, 1880.

April 10, 1880. v

such that when any obstruction opposes the lifting of the boxes the latch releases the lifting mechanism from its connection with the shuttle-box rod, and thereby prevents breakage. 5

Another of my improvements in the mechanism for shifting the shuttle-boxes relates to an improved arrangement of certain mechanfor selecting and moving the shuttle-boxes patented by Ghristopher Duckworth, January 9, 1866; and it consistsin so constructing and arranging the double series of hooked jacks attached to the double rocking arm and their pattern mechanism that the hooked ends of both series of jacks lie horizontally side by side below the end of the pawl, instead of being arranged in separate groups, one series below and the other series through the vibrating pa the end of the pawl above and passing wl-arm, as in the said By this improved arrangement the interference of the jacks of one series with the connecting-rods from the pattern mechanism to ded, and the advantage operated by the me velocity is also the other series is avoi same pawl moving at thesa My improvements in mechanism for forming shed relate to that class of looms in which the heddles are actuated through the intervention of levers, and these in the proper directions to depressor acting is of these jacks each shed being gova lifter and upon jacks, the arrangemen prior to the formation of erned by a pattern-chain Many forms and arran gements of such parts were known prior to the date of my invention.

Greenhalgh, as 0 the levers were with a series of in the loom of patented November 2, 1852, long upright levers provided notches at each end thereof, so that the heddlecords might be secured in an the range of motion of the altered without altering the range of motion loom had a long wheel, which acted both as a lifter and a depressor, and racked jacks and toes or fin which communicated the motion they de y notch, whereby heddles might be 5 from the pattern apparatus to the jacks. In this loom the same piece of metal acted both as lifter and depressor, and was located between the two racks which were formed on each of the jacks. 1

Subsequent to the Greenhalgh, the loom of Thomas was patented July 3,1855, and in this loom' the lifter and depressor were separate pieces of metal, and located one on each side of hooked jacks; but these latter were each connected to the levers by a rack, a cog-segment, and a slot and a pin, and the jacks were npright,in consequence of which position it was necessary to apply to each jack a weighted bent lever to force it to follow the motions of the fingers. The loom was therefore complex and costly.

The loom of (Jrompton, patented January 9, 1866, had also levers with notched ends, hooked jacks, a lifter and a depressor, (separate pieces of metal,) a pattern apparatus, and toes or lifters; but in this loom the jacks were hooked on the tops only, and extended on both sides of the levers, and were not located between the lifters and depressors.

Before Orompton a loom was patented by Knowles, February 24 1863, in which the jacks had the form of cog-wheels and were located between the lifter and depressor, which were separate pieces of metal, (long cog-wheels;) but the jacks were so located with reference to the pattern apparatus and the lifter and depressor that the "tension of the heddle-cords,

instead of the force of gravity, moved the racks in one direction. This loom, moreover, had no levers of any kind, and the motion was communicated to the heddles by wires connected with the jacks.

Prior to the date of my invention, also, levers of various forms, connected either by wires alone with the heddles, or through the intervention of other levers, were well known.

To sum up, various forms and arrangements of lifters, depressors, jacks, and levers were known prior to my invention; also, various combinations and arrangements of such parts of a loom and I wish it distinctly understood that I lay no claim to the form or construction of such parts, nor to their combination, except when combined and arranged as hereinafter specified.

In my loom the levers are represented at I I as pivoted upon a frame, H, extending out from the side of the loom, and these levers are notched at their extremities, so that the heddle-cords may be attached at various distances from the pivots of the levers, so that the heddles may at pleasure be moved through diflercnt distances while the levers vibrate through the same distance. To each of these levers is attached, by a pivot, a jack, J, and these jacks 'lie in such manner that they are moved upward by the operation of the patternbarrel, acting through the toes or fingers K, pivoted at k, and faltby gravity when the fingers permit them to do so. The jacks are each provided with a hook, both on their uplies the fingers, and as it revolves raises some of the fingers, and consequently some of the jacks, and permits others to fall by gravity in accordance with the arrangement of the studs on the barrel. Instead of this studded cylinder, a pattern-ch ain or other known substitute for the cylinder may be employed.

. The lifter and depressor are separate pieces of metal, and embrace the jacks between them. They are shown at h h as working in guides upon the frame H, and secured upon the ends of links, which are pivoted to the arms of a rock-shaft, i, which receives motion from a crank-pin on the shaft 0 through the intervention of the pitman-rod j and arm j, keyed upon the rock-shaft. All parts of the actingfaces of this lifter and this depressor move under this construction through the same,distance. The straight-edge or rule'shaped piece of metal h is secured to the arms which actuate the depressor h on the inner sides of the levers, and serves to support these levers, preventing them from running away from the depressor.

The studded cylinder or pattern-barrel is keyed on a shaft, is, which has an arm, 70, applied loosely on one end, carrying a pawl, 15, which operates on a ratchet-wheel, k, on said shaft. The arm k is connected by a rod, 3;", to an arm, 70, on the rock-shaft 9', so that the studded cylinder is rotated intermittently by the oscillation of this shaft 9'.

The operation of the whole contrivance is as follows: The studded cylinder, aided by gravity acting on the fingers and jacks, arranges the fingers, which arrange the jacks, some up, some down. Then the depressor catches those jacks which are up and the lifter those which are down, and as the litter and depressor move in opposite directions they move the jacks, and consequently the levers, some in one direction, some in the other, thus lifting some heddles and depressing others to diiferent distances, depending upon the position of the cords in the notches.

By observation of the drawings it will be perceived, as before stated, that the lifter and depressor are separate pieces of metal, and move simultaneously in opposite directions, and lie one above the other below the jacks, the jacks being between the lifterand the depressor; that the jacks lie in such manner that gravity shall cause them to rest upon the fingers and to fall when the studs of the patternbarrel permit them to do so, and that the jacks have hooks or notches on their upper and lower sides, so that they must, in order to be operated, be located between the lifter and the depressor; that the fingers are so arranged that part of the weight of the jacks rests upon them and part of the weight both of jacks and fingers rests upon the studs of the pattern-barrel. In all these points the arrangement of the parts is material.

In the accompanying drawings, A is the given to said rod E by the lever F. This viframe of the loom; B, the vibrating lay, which brating lever F is secured fast upon shaft F, latter receives motion from a crank-shaft, O, and has a number of hooked arms, d, pivoted 70 by means of pitman-rods O. to it at points above and below its axis of mo- On the extremities of the racebeam B tion, the forward ends of which rods lie side guides at a are applied for receiving the shutby side upon a stirrup, d, which is fast upon tle-boxes B, which are secured to the upper the loom-frame. The hooks on these arms d ends of rods D, that receive an intermittent are upon their upper edges, near their front 75 vertical motion for bringing the proper shutends, and are arranged at different points on Io tles into action. different levers. The arms d are connected by In the drawings I have represented only means of small rods d to the ends of pivoted those parts of the loom which will illustrate arms 6, which rest upon the highest point of a the application of my invention. Those parts studded cylinder, G, having its bearing upon a 80 which are not represented may be constructed horizontal shaft projecting from a standard, G.

in the usual well-known manner. The weight of the arms 01 keeps the arms 0 The lower end of the rod D passes freely down upon the surface of the studded cylinder through an eye which is made through an arm, G, the studs on which are arranged according a, on the oscillating pivot-bearing of the lay to the pattern which it is desired to weave, so 85 B, which, with the upper guides, a a, keep the that as this cylinder is revolved the studs upon rod and its boxes or shuttle-cells in proper its circumference will be brought beneath the position, and allow them to be elevated and arms 6 at proper times, and cause them to lift depressed. the hooked arms 01, so as to bring one of these A yoke, 11, is applied loosely to the rod D, latter arms at a time in such position as to be 0 and between the eyes of this yoke a collar, I), acted upon bya vibrating pawl, G The paw] 2 5 is secured fast to said rod, to which collar an G is pivoted on the side of the loom-frame, so arm having a forked hook, b, on. its upper that its lower end will lie in front of the hooks end is pivoted. upon arms d in a position to act upon the hook Upon the upper end of theloose yoke brests of any one of these arms which is raised, as 95 a helical spring, 11 and upon the upper end of above described. The width of pawl G is this spring isa collar, 1), to which is pivoted equal to the Width of the hooked arms d collatch-piece, 0', adapted for receiving the ends lectively, and this pawl is vibrated by toes or of the forked hook I), as clearly shown in Fig.6. cams f on shaft G and also by the spring f To the outer end of the jointed piece If a that is to say, the cams move the pawl back- I00 rod which is formed on a collar, 1), is pivoted. ward. and the spring moves it forward and This collar b is of such diameter as to allow keeps it in contact with the cams.

the spring b on rod D to play freely through it. The horizontal transverse sh aft G hasalarge The yoke b is connected by a short pitmanspur-wheel (indicated in Fig. 1) upon it, which "rod, 0, to a lifting-arm, E, a pin, 0, on which engages with a spur-wheel (also indicated in 105 rests upon the inclined stepped face of the re- Fig. 1) on the crank-shaft O, which latter shaft ciprocating rod E. (Shown in Figs. 1 and 6.) carries a hub, f having a cam-groove in its It will be seen by reference to Fig. 6 that circumference, as shown in Fig. 3. This camwhen the hook I) is in its place upon the latchgroove communicates a backward intermittent piece b the rod D will be connected to the pitrotary movement to the studded cylinder G 110 man-rod 0, so as to be elevated and depressed through the medium of a curved lever, g, on by the vibrations given to the arm E. Should a vertical rock-shaft, g, a connecting-rod, g, the shuttle-boxes B meet with undue resistloose arm 9 and pawl 9 (shown in Figs. 1, ance in the upward movement of the rod D, 2, 3, and 5.) the upward pressure and movement of the Those hooked arms d which are pivoted to n 5 yoke b upon this rod will cause the jointed the lever F nearest its axis of motion will, piece b to throw ofl' the hook I), and thus alwhen pressed backward by the pawl G elelow the yoke b to rise upon its rod without vate or depress the shuttle-boxes the greatest lifting the boxes or cells. Unless these boxes distance, and those arms which are pivoted to are obstructed the hook b will not be thrown said lever farthest from its axis will, at each 120 off the latch-piece. backward thrust, elevate or depress the shut- The shuttle-boxes B are moved up and tle-boxes the shortest distance. The backward down by the intermittent reciprocating movemovements of those levers d which are above ments given to the stepped inclined plane E the axis of lever F will elevate the shuttleon the front end of the reciprocating rod E, boxes, and a corresponding movement of the which is pivoted at its rear end to the lower levers or arms 01 which are pivoted to lever F end of a vibrating lever, F, on the horizontal below its axis will depress the shuttle-boxes B. rock-shaft F, and supported and guided at its It should be understood that the shaft F of front end by a stirrup, 0 which is made fast lever F extends across the loom-frame, and to the frame of the loom. When the rod E is has mechanism applied to it, corresponding to I30 moved forward its inclined plane Ehvill raise that above described, for operating the shutthe arm E, which, in turn, will raise the rod D tle-boxes on the opposite end of the race-beam, and shuttle-boxes B a certain distance, acso that when one set of boxes on one end of cording to the amount of forward movement said beam is raised the opposite set will be 30 cut lifter;

depressed. The drawings show only one set or row of shuttle-boxes.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. The combination, with a series of shuttleboxes,of the shuttle-box rod and its lifting mechanism, the hook attached to said rod, and the releasing-catch with its spring and connections,

substantially as described, whereby the shuttle-boxes are lifted by a positive connection, which is disconnected whenever the shuttleor the boxes meet with obstruction to their upward movement to save breakage.

2. The combination of the pawl G and its actuating mechanism, a series of hooked jacks, the double lever, the stepped cam, and means to connect the said cam and the double lever with a tier of shuttle-boxes, devices to connect the stepped cam and the tier of shuttle-boxes, and pattern mechanism to bring the jacks into position to be operated by the pawl, substantially as described.

3. The combination, substantially as described, of these elements: first, a series of heddle-levers; second, a series of jacks having the portions thereof to be engaged by the lifter and depressor located at the same side of the levers; third, a separate and independfourth, a separate and independent depressor; fifth, selectin gdevices; sixth,mechanism for actuating the lifter, depressor, and selecting devices; seventh, a series of fingers, the lifter and depressor being arranged one above and the other below the jacks, which lie between them at the same side of the levers, the entire part of the jack to be engaged by the lifter and depressor being made available to cause the jacks and fingers to descend quickly and remain down when not'lifted by the pattern-barrel, substantially as set forth.

4. The combination of a series of levers provided with notches at their extremities with a series of jacks having the portions thereof to be engaged by the lifter and depressor located at the same side of the levers, a litter, a de-' pressor, a series of fingers, a pattern-barrel, and mechanism for operating said parts, the litter and depressor being formed of separate pieces and arranged to embrace the jacks, and the latter and the fingers being adapted to descend by force of gravity when permitted by the pattern-barrel, the several parts operating to lift and depress the heddles to various heights while the acting-faces of both the lifter and depressor move through the same distance, substantially as described.

JOHN G. DUGKWORTH.

Witnesses:

W. O. TOMPKINS, W. M. TIBBETTS.

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