US1551746A - Loom-driving mechanism - Google Patents

Description

LOOII DRIVING MECHANISM Filed July 12 1921 2 Shoots-Sheet 1 Sep 1.1925

L. JENCKES mo: muvma lpcwmxsu 2 Sheath-31 1001. 2

Filed an -12, 1921 Patented Sept. 1, 1925.

mural) STATES.

PATENT "omen.

LAWRENCE B. JENGKES, O'F "\NORQESTER, MASSACHUSETTS, ASSIGNOR TO CROMPTON & KNOWLES LOOM 'WORK'S, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

LOOM-DRIVING MECHANISM.

Application filed July 12, 1921. Serial No. 484,228.

. To all whom it may concern:

Be it known that I, LA R NCE B. JnNoKEs, a. citizen of the United States, residing at WVorcester, in the county of Worcester and State of Massachusetts, have invented a new and useful Loom-Driving Mechanism, of

which the following is a specification.

This invention relates to a driving mechanism for loomswhichare used for weaving very wide heavy fabrics in which looms the parts are subjected to unusually heavy strains. It is the general practice in loom building to apply ower at one end only of the loom. Much difficulty has been encountered however in these wide heavy looms because of the spring and yield of theparts which transmit the power across the loom. This has caused serious trouble in the operation of the picking mechanism at the remote side of the loom, as it is necessary that the pick should be substantially identical and accurately timed on 'bothsides of the loom. Ituis the general object of my invention to provide for more uniform operation of the mechanism by supplying power from two independent units to the two ends of the loom and it is a. further object of my invention to provide novel devices for equalizing the application of power by these independent units, I

With these general objects in view my invention relates more particularly to certain arrangements and, combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of my invention is shown in the dnawings in which i Fig. 1 is a partial front elevation of a.

loom embodying my improvements;

Fig. 2 is a right hand side elevation of the parts shown in Fig. 1; p

Fig. 3 is a partial sectionial elevation taken along the line 33 in Fig. 1; and

Fig. 4 is a diagrammatic view of the connections from one of the shipper handles to the two ends of the loom.

Referring to thedrawings, I have shown portions of a loom frame 10 supporting bearings for a crank shaft 11 by which the lay is moved through the usual crank arms 12. .Sleeyes 13 are rotatably supported on the crank shaft 11 and picking rolls 14 are mounted to rotate with the sleeves 13 and rolls 14.

are also slidable axially thereon into and out of position to engage the cam plates 15 on the pick shaft 16. The pick, shafts are connected by arms 17 and links 18 to the picker sticks 19. 7 A Y All of these parts are of the usual construction and form no part of my invention,

which relates particularly to the means for applying power to thecrank shaft 11 and to the sleeves 13 I will now describe the driving, mechanism at the right hand side of'the loom. A motor20 is mounted on a base 21 and is provided with a pinion 22 which meshes with a' large gear 23 which is loosely mounted to slide on a: shaft 24 rotatable in bearings in the loom frame 10 and in an outer frame which drive the picking 25 which isrigidly connected to the frame 10 by braces 26. A friction disc 27 is fixed to the shaft ,24 and suitable controlling mechanism to be described is provided for forcing the gear 23 against the disc 27, thus rotating the shaft 24.

A counter shaft 28 extends entirely across I the loom and is supported in bearings in the main framelO and in the outside frames 25 and 25. V The shaft 28 is driven from the shaft 24 by apinion 29*011 the shaft.

24 which meshes with a gear 30 on thecounter shaft. 1

V The counter shaft 28 is connected at each Side of the loom to the crank shaft 11 by pairs of eccentric gears 31 and 32 and is- I also separately connected to each of the sleeves 13 by a pair of elliptical. gears 33 and 34. A second motor 35 is provided at theleft hand side of the loom and is similarly connected through a pinion 36 to a gear 37 loose on a shaft 38 to which a friction disc 39 is secured. The shaft 38 is connected by gears 40 and 41 to the shaft 28 previously described.

I will now describe the devices by which I the gears 23 and 37 are moved against the frictionplates 27 and 39, transmitting power to the opposite ends of the shaft 28. Shipper handles 45 and 46 are preferably provided at each side of the loom, the two handles of the lever 49 is connected by a link 51 to one arm of a bell crank 52 which is pivoted at 53 and supports an equalizing lever 54.

One arm of the lever 5% is connected by a link 55 and bell crank 56 and link 57 to a lever 58 pivoted at one end on a bracket 59 and having a roll 60 positioned in a circumferential groove in the hub of the gear 23. The other arm of the equalizing lever 54 is similarly connected to a lever 61 which con trols the position of the gear Springs 62 normally draw the gears away from the friction plates as clearly indicated in Fig. 4. In starting up a loom provided with my improved driving mechanism, the motors 20 and 35 are first startech thus revolving the sliding gears a3 and 37. One of the shipper levers d5 or 46 is then moved to apply tension to the levers 58 and 61 which move the gears into frictional contact with the discs 27 and 39. The equalizing lever 54; permits the two driving motors to pick up the load without placing an undue share of the load on either motor.

I It will be noted that the two sides of the loom are connectedthrough the shafts 11 and. 28, so that it is impossible for the parts to vary from their timed relation. At the same time the greater portion of the power at each side is supplied at a point closely adjacent to the corresponding picking mecha nism and I avoid the diii icnlties encountered when the power is transmitted through the shafts from one side of the loom to the other for picking purposes.

Having thus described my invention it will be evident that changes and modifications can be made therein by those skilled in the art within the spirit and scope of my invention as set forth in the claims and I do not wish to be otherwise limited to the details herein disclosed but what I claim 1.111 a loom, connected driving mechanism operating at both sides of the loom, separate power-applying devices at each side of the loom, and friction connections between said devices and said mechanism at each side of the loom.

2. In loom, connected driving mechanism operating at both sides of the loom, separate power-applying devices at each side of the loom, friction connections hetwcen said devices and said mechanism at cach side of the loom a manual controller for said connections, and an equalizer between said controller and said connections.

3. In a icon), connected driving mechanism operating at both sides of the loom, separate power-applying devices at each side of the loonn friction connections between said devices and said mechanism at each side of the loom, a manual controller for said connections, linkage between said controller and said connections, and an equalizing lever in said linkage.

at. In a loom, connected driving 1necha nism operating at both sides of the loom, a separate electric motor at each side of the in in and driving connections between each motor and said mechanism.

in a loom, connected driving mechaism operating at hoth sides of the loom, a separate electric motor at each side of the 106th, driv connections uetwecn each 1110- tor and said i echanisni, and a single inanval controller for said connections.

In testimony whereof I have hereunto aiiined my signature.

niuvnnnon B. JENCKES.

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