US672385A - Automatic stop and releasing device for looms. - Google Patents

Description

No. 672,385. Patented Apr. I6, I90I'.

B. F. MEYER. AUTOMATIC STOP AND RELEASING DEVICE FOR LOOMS.

Application filed Nov. 27, 1900.)

2 Sheets-Sheet l.

(No Model.)

No. 672,385. Patented Apr. I6, l90l. B. F. MEYER.

AUTOMATIC STOP AND RELEASING DEVICE FOR LOOMS.

[Application filed Nlw. 27, 1900..

(N M B 2 Sheets-Shaet 2.

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BENJAMINF. MEYER, OF CAMDEN, NEW JERSEY, ASSIGNOR. TO M. A. FUR- BUSH do SON MACHINE COMPANY, OF SAME PLACE.

AUTQMATBC STOP AND RELEASING DEVICE FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 672,385, dated April 16, 190 1.

Application filed November 27, 1900. Serial No. 37,866. (No model.)

To ctZZ whorm it may concern:

Be it known that I, BENJAMIN F. MEYER, a citizen of the United States, residing at Camden, in the county of Camden and State of New Jersey, have invented certain new and useful Improvements in Automatic Stop and Releasing Devices for Looms, of which the following is a specification.

My invention has relation to a mechanism for automatically stopping a loom by releasing the operating-shaft from the main driving-gear when the shuttle fails to reach its box; and in such connection it relates to the construction and arrangement of such a mechanism.

The nature and scope of my invention will be more fully understood from the following description, taken in connection with the accompanying drawings, forming part hereof,

in which Figure 1 is an end elevational view of a power-loom, illustrating the power end and the automatic stop and releasing device embodying main features of my invention applied thereto. Fig. 2 is a top or plan view of Fig. 1. Fig. 3 is a detail view of the gear on the operating-shaft of the loom and of the means for connecting the same to said shaft. Fig. 4 is a front elevational view, enlarged, of

0 the shuttle-box and protector-finger. Fig. 5 is a top or plan view of Fig. 4;, with a portion of the frame of the loom broken away to illustrate the construction and arrangement of the stop and releasing device. Fig. 6 is a crosssectional view on the line 6 6 of Fig. i, and

Fig. 7 is a detail view of the shipper-catch.

Referring to the drawings, ct represents the main driving-pulley, operated by a belt a from a power-shaft. (Not shown.) The pulley a normally rotates loosely upon the driving-shaft b of the 100111 adjacent to a frictionpulley b, keyed to the shaft 6. The pulley a.

has a face of, adapted when the pulley is shifted on the shaft 5, as hereinafter described, to

engage the pulley b and to transmit its power and motion thereto. The driving-shaft b has a bevel-pinion b engaging a main drivinggear b which in turn is adapted to mesh with a gear-wheel b controlling the operatingshaft d of the loom. The pulley a is provided with a grooved collar a engaged by a forked clutch a, operated by a series of levers a a, and ed. The lever a is connected by a rod (t with a treadle C09, adapted to be depressed by the foot of the operator to throw the pulley 0, against the pulley b through the connection heretofore set forth. The treadle a is normally elevated by the spring a and is also controlled in its movement by a handle or hand-lever a connected by the rod 00 with said treadle, all as clearly illustrated in Fig. 1. 9

So far as explained the mechanism is arranged and operates in a manner well known in the art. By depressing the treadle a the loom is set in operation, and by either elevating the treadle or causing the handle a to shift the power-pulley a, is disconnected from the pulley b to stop the loom. The shuttle-boxes c and sh uttle-lay e are connected by a link (2 with a crank d of the operating-shaft d. If for any reason the movement of the lay e is stoppedas, for instance, when the shuttle e is not in its box and strikes upon the batten-then the connectingdink (2 will be forced backward and the rotation of the shaft (Z will be reversed.

In the construction so far described the uncoupling of the pulley a from the pulley Z) will not prevent further rotation of the main 8o gear b which travels by reason of its momentum, and as the gear 6 on the operatingshaft d will be reversed in movement by the reversal of the shaft (1 the teeth of the gear 12 will be subjected to great strain and will break 0% under the pressure exerted by the moving main gear 19 To prevent this destruction of the gear 5 is one of the main features of the present invention and is secured by the following mechanism; The gear b is loosely supported upon the operating-shaft d and is provided on one face with a grooved collar f and on the other face with preferably two diametrically opposite lugs or projections f. Adjacent to that face of the gear 5 b which carries the lugs f is located a handwheel f keyed to the shaft 61 and provided with an annulus or ring f having openings or recesses adapted to receive the lugs f, to thereby lock the gear Z7 to the ring f and rochence to the hand-wheel f and shaft d. The locking of the gear I) to the shaft (Z is only I accomplished when the gear 6 and its collar fare shifted in one direction on the shaft d, and the disengagement of the gear 17 from the shaft 01 is secured by the shifting of the gear 79 and collar f in an opposite direction on said operating-shaft d. The shiftin g mechanism consists, preferably, of a forked clutch fflengaging the collarand operated by a rod f which extends forward to the frame in front of the shuttle-lay e and is connected to a lever f, called a bumper-iron. This lever or bumper-iron f. is pivoted at one end, as at J", and intermediate of the pivot f and the connection to the rod f is provided with a projection f It follows that when the bumper-iron f is moved outward away from the front of the lay c then the rod f is drawn out and through the clutch f will draw the gear b out of engagement with the hand-wheel ring f Referring now to Figs. 4, 5, and 6, in front of the shuttle-box e is arranged for each sh uttle a plate 6 normally pressed inward by a spring e and designed to check or brake the movement of the shuttle e as it enters the box and to hold the shuttle in the box until the next pick. This plate 6 has a free end 6 which when the shuttle e occupies its box is pressed outward, as indicated bydotted lines in Fig. 5. Adjacent to the free end 6 of the plate 6 is one arm g, secured to a shaft, which carries another arm g, constituting what is called a protector-finger. When the shuttle e is not in its box, the protector-finger g is elevated by a spring 9 to the position indicated in full lines in Fig. 6 and in this position is in alinement with and will strike against the projection f of the bumper-iron f When the shuttle c is in its box, the finger 9 will be depressed by the bulging out of the free end of the plate 6 as indicated in dotted lines in Fig. 6, to clear the projection f It follows then that if the shuttle e fails to enter its box as required the pro- I b, which continues to rotate in mesh with the main gear 19 as long as said gear I) is driven and without operating the loom.

A second feature of my invention consists in connecting the bumpe1'-ironf ,which serves to uncouple the gear b from the shaft (1, with the clutch-operating mechanism for uncoupling the power-pulley a from the d riving-pulley b. The bumper-ironf is normally pressed inward toward the protector finger g by means of a catch m, known as a shippercatch, which is under the tension of a spring m. The catch m is pivoted, as at m in the loom-frame and carries a pin m normally resting against a piece f ad ustably secured to the free end of the bumper-iron f The catch m is also provided with a beveled lug m adapted when the catch moves under the tension of the spring on to engage afinger a, secured to the handle a, and to hold said handle a in position. From the description heretofore given of the handle a, rod 0. treadle 00 and the spring a it will be understood that the handle 0. is normally held in elevated position by the spring c which acts upon the treadle a to elevate the rod a The catch m therefore, under the influence of its spring m, serves to shift the bumper-iron f into its normal position and to lock the handle a against the tension of the treadle-spring a or, in other words, the catch normally maintains the mechanism for uncoupling the gear I) in an inoperative position and also serves to lock the treadle a in its depressed position, which position insures the coupling of the power-pulley a with the driving-pulley b. The movement of the bumper-iron)" when struck by the protectorfingerg retracts the catch m, so as to permit the lug m to clear the finger a of the handle a and thus permits the handle or to be elevated by the treadle a under the influence of the treadle-spring (1 Having thus described the nature and objects of my invention, What I claim as new, and desire to secure by Letters Patent, is

In a device of the character described, a main driving-shaft, a driving-pulley secn red thereto, a power-pulley adapted to be locked to or released from the driving-pulley to control the movement of the driving-shaft, a treadle mechanism adapted to lock or release said pulleys, a hand-lever adapted to control the treadle mechanism, a shipper-catch normally adapted to maintain the hand-lever in inoperative position, a bumper-iron or lever controlling said catch, an operating-shaft, a lay adapted to be oscillated by said shaft, a shuttle-box carried by said lay, a gear normally locked to said shaft, a driving-gear carried by the main driving-shaft and in mesh with the gear on the operating-shaft, means controlled by the bumper-iron for unlocking the gear to the operating-shaft, and a protector finger normally elevated when the shuttle-box is empty and adapted to control the bumper-iron, substantially as and for the purposes described.

In testimony whereof I have hereunto set my signature in the presence of two subscribing witnesses.

BENJAMIN F. MEYER.

Witnesses:

J. WALTER DOUGLASS, THOMAS M. SMITH.

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