US779997A - Loom. - Google Patents

Description

No, 779,997 PATENTED JAN.10, 1905. J. R. FITTON.

LOOM.

APPLIGATION FILED AUG. 4, 1904.

3 SHEETS--SHEET l.

PATENTED JAN., l0, 1G05` LOOM.

APPLIUATION Hmm AUG. 4, 1904.

3 HEEBTSMBIIEET 2.

"LUHt/esseg: f

f? i .wwpm' Nm 779,997. l PATENTED JAN. l0, i905.

J. R. PITTON.

LOM.

APPLIGATION lLBD AUG. 1L, 1904.

3 SHEETS-EHEET 3.

rre ares Patented. January 10, 1905.

JOHN R. FITTON, OF WORCESTER, MASSACHUSETTS, ASSlG-NOR TO RAN- DOLPH OROMPTON, GEORGE CROMPTON, EDWARD D. THAYER, AND WILLIAM B. SCOFIELD, OF VVOROESTER, lVlASSAOIIUSElTS.

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SPECIFICATTON forming part of Letters Patent No. 779,997, dated January 10, 1905. Application filed August 4, 1904. Serial No. 219,426.

T @ZZ wiz/0m t may concern.'

Be it known that I, JOHN R. Frr'roN, a citizen of the United States, residing at VVorcester, county of lfoicester, State of' Massachusetts, have invented an lImprovement in Looms,

of which the following' description, in connection with the accompanying' drawings, is a specification, like letters on the drawings representing like parts.

IO This invention relates to stopping and brake mechanisms of looms, and has for its object to be able to release the brake after the loom has been stopped automatically, and this may be done from either end of the loom.

I5 Prior to this invention it has been customary to stop the loom automatically by or through the usual dagger Lacting upon a knock-offl lever to release automatically the brake-rod, so that the usual spring shall apply 2O the brake and stop the loom, and thereafter in case the operator desires to turn over the loom or adjust the same for any purpose it has been customary to engage the sl'lipper-handle and pull the same backwardly in opposition to its movement effected through the automatic stopping of the loom, and it has been found that this movement is so delicate that the loom is started when it is only desired to release the brake.

The aim of this invention has been to provide a means that may be operated practically to stop the loom automatically and leave the parts in a position that the operator may continue tov move the shipper-handle in the direction that it was moved to put on the brake, and thereby effect the release of the brake, the movement of the shipper-handle by the operator when stopping the loom and releasing the brake being' in the reverse direction from 40 that in which it must be moved to start the loom, so that in the plan herein provided it is impossible to accidentally start the loom when the operator is attempting to simply release the brake.

Figure l, in side elevation, represents a suflicient portion of a loom and parts to indicate my invention in one of the best forms now known to me, the brake being' supposed to be effective and the loom as having been stopped automatically. Fig. 2 is a detail showing the 50 brake part of the friction driving mechanism and the surrounding' brake-band. Fig. Bis an enlarged view of' some of the parts represented in Fig. l, the full lines showing the shipper handle in position with the loom 5 5 stopped and brake on, the dotted lines showing' the position of' the shipper-handle when the brake is ofi. Fig. 4: is a view ofl the parts represented in Fig. 3 looking at the same from the front of the loom; and Fig. 5 is a 60 view similar to Fig. 3, but with the shipperhandle in the position it will occupy when the loom is running.

Referring to the drawings, A represents part of the loom-frame; A, the usual driveshaft, which may be driven in any usual manner by a friction-pulley A2, surrounding' the shaft loosely and having' a friction-face to coaet with the friction-face of a fast pulley member A, having an attached brake-surface ASX, said member being surrounded by a brakeband Al, connected at one end with a stud A5, sustained by a projection A, extended from the loom-frame, the opposite end of said brakeband being connected by a suitable bolt or device A7 with a brake-lever AS, pivoted on astud A of a depending hanger secured to the loomframe. The longer arm of the brake-lever AS has jointed to it a rod B, extended through a suitable g'uide B and having fastened to it a col- 80 lar B2, that sustains the upper end of aspring B3, encircling the rod B, and the lower end of which abuts the guide B and acts normally to cause the brake-band to be drawn with such torce over the pulley member A as to stop the loom. The upper end of the rod B has jointed to it at Bi one end of the main brake-lever B5, pivoted at B on a stud of the loom-frame. This lever has a cam-slot c, provided with a notch of, that serves asa part of' a locking de- 90 vice to retain the main brake-lever in its position to lock the auxiliary brake-lever in a position to overcome the pressure of the spring B3 and leave the brake free, so that the loom may be turned over by hand, if desired, orbe started by power. The stud sustaining the main brake-lever carries a supplemental lever C, that when moved, as will be described, by contact with a lug C' thereof on the lower end of the regular shipper-lever C2 will move said supplemental lever and cause it through the adjusting device C3, shown as a screw and carried thereby, to meet the auxiliary knock-off lever Ct, loose on the rock-shaft G5 and provided with a stud ft2, that enters the slot a and causes the stud, the main brake-lever having been depressed, to move farther in said slot and enter the notch a thereof, thus causing the main brake-lever to be locked in its inoperative position, as described.

The rock-shaft C5 is common to looms and is extended across the loom from one to its opposite side underneath the breast-beam, and in practice said shaft will have connected with it at both ends a shipper-handle, but one shipper -handle being herein shown. The

shipper-handle at the opposite end of the loom' need not have a portion dependingbelow the rock-shaft. r'he shipper-handle C2 shown is shaped as it will be when the driving mechanism, such as the belt-pulley and main driveshaft, is at the left-hand end of the loom. This lever has a depending' portion CZX, provided with a stud a3, that enters a peculiarlyshaped cam-slot L5 in the upper end of the shipper-lever D, pivoted to turn about a stud D of the loom side, the lower end of said lever having connected with it a rod D2, that at its opposite end (see Fig. l) is jointed to a lever D3, the movement of which in one or the other direction shifts or makes effective the loose member of the friction-pulley to either leave the loom at rest or to start in rotation the drive-shaft A. This rod DZ is surrounded by a spring D4, one end of. which abuts a collar D, fast on the rod, the other end abutting' a guide D, connected with the loom-frame. This rod and lever D3 are of usual construction, so need not be further described.

To theA under side of the breast-beam E, I pivot a knock-olf lever E', the free end of which outside the loom-frame crosses the upper end of the auxiliary knock-ofiI lever C4, so that when the knock-off lever E is moved by the usual dagger carried by the lay and controlled by the binders the said auxiliary knock-off lever C will -be moved to cause its stud (t2 to be moved out of the notch a' of Vthe slot a from the position Fig. 5 into the position Figs. l and 3, such movement of said auxiliary knock-off lever and its stud t2 releasing the main brakelever, so that the spring B3 may act and cause the brake-band, or whatever brake is used, to immediately embrace the fast friction member and stop rotation of the main drive-shaft A', and consequently stop the loom.

Figs. l and 3 show the parts in the position with the loom stopped, as it will be automatically through the action of the dagger alone, as described. As the auxiliary knock-off lever is moved by the knock-off1 lever E, which is started automatically, as described, a projection Z1 of said lever meets the shipper-handle and turns the same from the position Fig. 5 into the position Figs. 1 and 3, wherein it will be noticed that the stud a3 o f the shipper-lever has retired from the portion L5 of the cam-slot and has unlocked the lever D, so that the spring Di may act. Going now again to the main shipper-lever, it will be seen that it has rconnected with it by suitable set-screws L' a cam plate b2, and when the loom is stopped automatically, as described, the stud L3 stops substantially in contact with the part 7)* of said cam-plate. This done, usually the operator must turn over the loom to open the shed#for instance, to correct a mispick or for some other usual purpose; but the brake is on, and the operator cannot turn the loom over without taking ofl1 the brake, and to be sure that the operator does not start the loom again by moving the shipper-handle I have provided that the operator may move the shi p'per-handle in the same direction that it was moved when the loom was stopped automatically to effect the release of the brake. This movement of the shipper-handle in the same direction in which it was moved to stop the loom automatically to release the brake that the loom may be turned over by hand is an essential feature of this invention, for which l desire to make the broadest possible claim. The operator to release the brake will push the shipper-handle from the position Fig. 3 shown by full lines into the position shown by dotted line, and in so doing the stud c3 will act on the cam b2 and will depress the main brake-lever, compressing the spring' B3 and turning the auxiliary brake-lever to release the brake. Now to start the loom into operation, everything having been Vadjusted properly, the operator will engage the shipper-handle in the dotted-line position Fig'. 3 and turn the same by one movement into the position Fig. 5.

By the term driving mechanism I intend to include the shaft A', employed to drive a main shaft of the loom, said shaft having connected therewitlrthe fast pulley member A3 and a loose pulley member A2, said pulley members being represented as of the friction variety. By the term brake mechanism I include, as herein illustrated, a brake-band, a brake-surface A3, lever AS, rod B, spring B3, said band embracing the brake-surface, and by the term shipping mechanism I intend to include the shipper-lever D, the rod D2, and a suitable connection D3 for releasing the loose pulley member from the fast pulley member. I do not wish, however, to limit myself to the exact construction shown for the various mechanisms herein illustrated and Wish to claim any equivalent mechanism whereby the shipper-handle is moved to release the brake ICO IIO

in the same direction in which it was moved to release the power.

Having described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In aloom, driving' mechanism, brake mechanism, a shipper-handle and intermediate connection under control of said shipperhandle whereby said shipper-handle, when moved in the same direction from the position in which it was left when the loom was stopped automatically, will effect the release o't' the brake. v

2. In a loom, driving' mechanism, brake mechanism, a shipigier-handle, means intermediate said shipper-handle and said driving' and brake mechanisms, and means for moving said shipper-handle automatically to render the driving' mechanism inoperative and operate the brake mechanism to stop the loom, further movement oi' the shipper-handle by hand taking' oii' the brake, leaving' the loom stopped and free to be turned back by hand.

3. In a loom, driving' mechanism, brake Inechanism, devices connecting' said shipperhandle with said mechanism, means to move the shipper-handle in one direction to render the driving mechanism inoperative and apply the brake to stop the driving-shaft to the loom, further movement of said shipper-handle in the direction of stopping' releasing the brake, the movement of the shipper-handle in a direction opposite the stopping direction causing the driving' mechanism to be put into its operative relation to start the loom.

4. In a loom, driving' mechanism, brake mechanism, a shipper-handle, and means connected thereby when moved in one direction to start the driving' mechanism and in the opposite direction to render the driving' mechanism inoperative and apply the brake to stop the loom and to then remove the brake while the loom is stopped.

5. In a loom, driving' mechanism, shipping' mechanism, brake mechanism, a shipper-handle and suitable connections between the same and means whereby when the main shipper-lever is moved in a direction opposite the direction in which said shipper-handle is moved to start the loom, the shipping' mechanism is lirst moved to render inoperative the driving mechanism and to apply the brake, further movement of the shipper-handle in stopping direction releasing' the brake.

6. In a loom, driving mechanism, shipping mechanism controlling' the same, brake mechanism, a main brake-lever, a shipper-handle, main and auxiliary neck for levers, and means for automatically moving the shipper-handle in stopping' direction to move the shipping mechanism and render the driving mechanism inoperative and move the main brake-lever to apply the brake mechanism and stop the rotation of the driving-shaft, leaving' the shipper-handle in a position to be further turned by hand in the stopping direction to effect the release oi" the brake mechanism.

'7. In a loom, brake mechanism, a main brake-lever, a coacting' shipper-handle, means to move said handle automatically to turn said main brake-lever and apply and make effective the brake mechanism, iurther movement of `the shipper-handle in stepping direction eili'ecting' the movement of the main brake-lever in a direction to release the brake while the loom is stopped.

8. In a loom, brake mechanism, a main brake-lever having' a cam-slot provided with a notch, a shipper-handle having' a stud to engage said notch and hold the brake mechanism in its inoperative position, a main and auxiliary neck for lever, automaticmeans for moving' said neck for lever that it may turn the auxiliary lever and move the shipperhandle to lock the main brake-lever and turn the same to apply the brake, further movement of the shipper-handle in the direction in which it was moved automatically imparting' movement to the main brake-lever to release the brake.

9. In a loom, brake mechanism, a main brake-lever,a shipper-handle acting' to hold the main brake-lever locked open when the loom is running, means for moving automatically the shipper-handle to release the main brakelever and enable the brake mechanism to act and stop the loom, and means whereby Yl'urther movement of said shipper-handle in the same direction moves the main brake-lever to remove the brake.

10. In a loom, driving'mechanism, shipping mechanism, brake mechanism, a main brakelever, a shipper-handle acting' to lock the main brake-lever when the loom is running', means for moving' automatically the shipper-handle to actuate the shipping' mechanism to release the driving' mechanism, said means also actuating' the main brake-lever that it may move the brake mechanism and apply the brake, further movement of said shipper-handle in the same direction removing the brake.

In testimony whereof I have signed my name to this speci [ication in the presence of two sul scribing witnesses.

JOHN R. FITTON. Y ltfitnesses:

M. L. VAN HOUTEN, CHARLES F. ALDRIGH.

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