US355736A - Loom for weaving terry fabrics - Google Patents

Description

(No Model.) a Shets-Sheet 1. W. WEAVER.

LOOM FOR WEAVING TERRY FABRICS. I

No. 355,736. Patented Jan. 11, 1887.

Quinn 1.

Hill:

NJ PETERS. PhnkwLilhogmphcr. Washingnn. D, C.

' (No Model.) s sneew-sheemb W. WEAVER.

LOOM FOR WEAVING TERRY FABRIG$.

No; 355,736. Patented'Jan. 11,1887;

N. PETERS. Pnolo-Lilho rapher. Wnhmgmn. l). C

(No Model.) 3 She'ets Sheet 3. W. WEAVER.

LOOMLFOR WEAVING TERRY FABRICS.

Patented Jan. 11, .1887

n. PETERS Mlolo-L'lihographer. Washmgion. D. C.

1 elevation thereof.

U ITED STATES PATENT OFFICE.

WVILLIAM WEAVER, OF GREEN WIOH, ASSIGNOR OF ONE-HALF TO A. G.

STORY, OF LITTLE FALLS, NEW YORK.

LOOM FOR WEAVING TERRY FABRICS.

SPECIFICATION forming part of Letters Patent No. 355,736, dated January 11, 1887. Application filed April 22, 1884. Serial N0.128,861. (N 0 model.)

varying the throw of the lathe automatically,

as required in makingthe loops of terryfabrics and for regulating the movements of the heddles.

In the accompanying drawings, Figure 1 is a side elevation of a terry-loom embodying my improvements. Fig. 2 is a longitudinal sectional elevation thereof. Fig. 3 is a front Fig. 4 is a side elevation on the side the opposite of that shownjn Fig.

1. Fig. 5 is a detached sectional view illustrating the pattern mechanism for regulating the position of the heddles. Fig. 6 is a transverse section on the line 1 2, Fig. 1. Fig. 7 is a plan of part of Fig. 6.

The frame A of the loom is constructed to support the parts hereinafter described, the lathe B is pivoted, and the shuttle is driven along the race in any suitable manner, the loom shown in the drawings being especially adapted for the operation of shuttles'i n the mode set forth in the application filed by me April 16, 1884.

In the constructionshown the loom is intended especially to operate as a terry-loom, and I employ devices which operate automatically to vary the beat of the lathe. For this purpose the arms or pitmen a, connected to the crank-shaft O, which vibrates the lathe,

are jointed at their forward ends to slides D, adapted to guides D at the back of the lathe, the throwing up of the slides preventing the complete beating up of the lathe, which,'however, results when the slides are lowered. The upward movement of the slides is caused by springsv b acting upon levers E, pivoted to the standards E, and connected by rods 0 to the levers F, pivoted at their rear ends to the frame, and connected by rods (1 to the slides D. The downward movement of theslides is effected by means of a wiper, upon a shaft, G, geared to the shaft H.

To prevent the constant reciprocation of the slides, resulting from. the continuous rotation of the shaft G, I combine with the levers F detents, which serve to hold said levers in their lowest position, and which detents are under the control of automatically-operating appliances-as pattern wheels or chains, start and stop motions, &c.

As shown, each detent consists of an arm, H, having a lower shoulder, at, and hung to a shaft, H, turning in bearings on the side bars of the frame, thetwo shafts being connected so that the arms will be simultaneously thrown inward or outward by means of the cross-bar H jointed to cars d, fastened to the shafts H,. as shown in Figs. 6 and 7.

The automatic rocking of the shafts H, to throw the arms H" away from the levers F, is effected by a spring, D secured to the frame of the machine, and to a pin, (i projecting from a shaft, H, and the reverse movement of the shafts H, to bring the arms H into the paths of the levers F F, is effected by a patternwheel, I, meshing with-a pinion, J, on the end of the shaft of the take-up roller or drum K, the said pattern wheel being provided with one or more lugs, f, arranged to strike a hanging-lever, L, which bears at the lower end against an arm or hand-lever, L, upon one of the shafts H.

By varying the relative diameters of the gears I J each revolution of the take-up roller will cause more or less than one revolution of the gear I, and by providing the'latter with a series of openings pins f may be inserted therein at proper intervals. By these means the detent-arms H may be thrown in and out at any desired intervals, and the lovers F and slides D, connected thereto, will be correspondingly caught and released, so as to secure any desired variation in the beats.

As the arms H might be thrown inward while the levers F are in their upward posi-' tions, the parts of the loom might be injured by the descent of the levers if the arms were connected positivelyto the shafts H. i To prevent this I provide for a yielding of the arms H should pressure be brought against them rollers, as shown.

from the inside. Thus the arms H may be hung looselyto the shafts H, and may be provided with pins h, held in contact with lugs ion the arms (I by means of springs 1', so that normally the rocking of the shafts H will vibrate the arms; but the latter may swing independently upon the shafts should the levers F be brought downward against them.

The take-up beam is operated from a vibrating lever, M, carrying a pawl, j, which engages with the teeth of the ratchet M on a shaft carrying a pinion gearing with the wheel D on the take-up beam, as shown, the lever M being vibrated from a lever, M to which it is connected by a rod, M the lever M being pivoted at its lower end and vibrated by means of a cam, M", on the shaft G, which cam has a groove at its inner face receiving a pin on the lever M, as shown in dotted lines, Fig. 4.

There are two let-ofi' motions,which consist each of two lower rollers, Z 1, upon which an upper roller, Z, is caused to bear by springpressure, the three rollers being geared to turn together, and a large cog-wheel, l,'connecting the two motions, and the warps from the two beams N N pass therefrom to the different A ratchet-wheel, O, is se-v cured to the shaft of one of the rollers, and is operated by a,vibrating lever, P, hung upon the journal of the ratchet and carrying a pawl, m, which engages with the teeth of the ratchet, and the lever l? is connected to the lever M by a connecting-rod, P.

It will be seen that the let-0E motion and the take-up motion are connected and operated by the same lever M whereby unison may be secured; but any variation is obtainable by varying the connection of the rod M with the lever M viding the lever M with a series of openings, permitting the connecting-pin m to be connected at different points.

The heddle-motion consists of theusual harness-supporting levers, Q, and bars Q, suspended at the outer ends thereto, guided in the frame R, and each depressed when thrown inward by a reciprocating carrier, Q, the crossbar 1; of which upon its downward motion engages with the shoulders of said bars. These shoulders are formed by spring-rods q,attached at the lower ends to the inner sides of the bars, and bent outward and then inward to form the shoulders r, so that on the upward movement of the bar 1) the spring-rods will yield and permit the bar to pass, and will then swing outward, so that the bar may make contact with the shoulders on its descent.

The lower ends of the bars Q are thrown outward by means of springs 8, connecting the upper ends of the bars with a cross-bar, s, on the frame, so that the carrier Q only, makes its contact with and carries down such bars as are thrown inward by the pattern-motiom The pattern-motion in the present instance consists of a series of cylinders, Z, provided with lugs and carried by a frame, S, turning This may be done by pro-- upon or with a shaft, t, having its bearings in brackets t, the revolution of the said frame bringing either cylinder to operate upon the bars as may be desired, the cylinders each carrying a pinion, u, which gears with a central pinion, u, the revolution of which will turn all the cylinders while the frame occupies a stationary position.

The driving-pinion u isconnected to be turned by a ratchet-wheel, T, moved with a step-by-step motion by the vibration of a lever, T, carrying a pawl, V, which engages with the teeth of the ratchet, and this lever is connected by a rod, 3, to and reciprocated by a lever, U, to which a vibrating motion is imparted by a cam, U, on the crank-shaft O. The lever U is connected directly to the carrier Q, which is thus elevated at the time the upward movement of the lever U brings the pawl V forward upon the ratchet and rotates the cylinders, so that the latter are adjusted before the downward movement of the lever U and of the crossbar p. g

Theframe S may be turned to bring either cylinder opposite the bars Q, the gear-con nections insuring the operation of all.

The means shown for rocking the frame consist of a shaft, W, and hand-lever W, and connecting-arms w w. The shaft W has a slight longitudinal motion in a plate, Y,,and is pressed rearward by a spring, 5, so asto normally keep a lug, 6, on the lever W in a hole in the plate, thus holding theframe S in any position to which it is set, but permitting adjustment on pulling on the shaft by means of the lever W. A collar, 7, turns with but slides on the shaft t of the frame S, and is pressed by a spring, 9, against the bracket t, to create suflicient friction to prevent the jolting of the frame S out of place and hold it when the lever '1" is moved.

By means of the adjustable frame carrying a series of driven toothed cylinders the sim ple part revolution of the frame will enable the operator to at once make a total change in the character of the fabric produced by the loom.

I am aware that it is not new to use vertically-moving and other slides connected with the pitnien of terry-looms to vary the throw of the lathe, nor to combine with such slides an operating-lever and a detent; but my in vention is distinguished from such constructions in the use of an automatic device for throwing the detents out of action at predetermined intervals, such detents having heretofore been operated by hand.

I claim-- 1. The combination of the crank-shaft, lathe, and slides upon the lathe, pitmen connecti'ng the crank-sh aft and slides, and levers connected to and operating said slides, lever-operating.

devices, detents whereby said levers are held in one position, and automatic detent-operating devices, substantially as described.

2. The combination,with the pitmen, crankshaft, and lathe, connections between the pitmen and lathe, and levers, and devices, subcrating devices, vibrating arms H upon the stantially as described, controlling 'the posi-' shafts H, a toothed wheel, I, gearing with the tion' of the pitman-connections between the pinion on the take-up-beamshaft and carryshaft and lathe, and antomaticlever-operating ing one or more pins, f, and, connections bedevices, of detents and detent-operating de; tween the arms H and the pin, constructed to 3i vices, substantially as described. be acted on by the pin to throw inward'the" 3. The combination of the lathe, levers, pitarms, substantially as described. I

men, connections between the levers and pit- 6. The combination of the lever F, shaft H, men, and a pattern-wheel and spring, and conarm H, hung to shaft H, lever L, lever L, necting devices, substantially as described, take-up beam, toothed wheel J on the shaft 35 between the pattern-wheel and levers, all sub- I thereof, and gear I, carrying one or more pins, stantially as set fort t f, substantially as described.

, 4. The combination of the pitmen, crank- 7. The combination, with the revolving shaft, and lathe with the levers controlling the frame S, geared cylinders provided with lugs, position of the pitman -connections between ratchet T, lever T, carrying a pawl engaging the. shaft and lathe, detents, take--np beam, lever and beam operating devices, gears I J, one carrying a pin or pins, and connections operated by said pin and to control the position of the detent, substantially as described.

5.- The combination of the pitmen, crankshaft, lathe, shafts. H H, take-up beam, and

with said ratchet, and the bar 1), of a lever connected to operate both' the bar and the lever T, substantially as described.

In testimony whereof I have signed my na me to this specification in the presence of two 45 subscribing witnesses.

WM. WEAVER.

pinion with the levers F, controlling the posi- Witnesses: tion of the pitman-connections between. the L. O. YOUNG, shaft and lathe, lever and take-up beam op- O. E. FOSTER.

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