US381518A

US381518A - Assigkoe to the

Info

Publication number: US381518A
Authority: US
Publication date: 1888-04-17
Anticipated expiration: 1905-04-17

Description

(No Model.)v

l11. WYMAN.

LOOM DRIVING GEAR.

UNTTED STATns PATENT HORACE NYMAN, OF VOROESTEB, MASSACHUSETTS, ASSIGNOR TO THE OROMPTON LOOM WORKS, OF SAME PLACE.

LOOM DRIVINGGEAR.

SPECIPICATIO forming part of Letters Patent No. 381,518,

Application filed July 28, 1887.

To @ZZ whom' 17mg/ concern.-

Be it known that I,Honaon Wyman, of I Voreester, in the county of -vVorcester and State of Massachusetts, have invented an Improvement in Loom DrivingGears, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object to drive the main cross-shafts of a loom in the most steady manner possible, notwithstanding irregularity in the resistance to be overcome by the said shafts, and at the same time I have also had in view such a construction and arrangement of the gearing as to gain the maximum of power and to economize space. l

In this my invention I am enabled to place the driving-shaft of the loom, or the shaft employed to rotate the two cross-shafts, at a greater distance than usual from the mill or counter-shaft arranged along the floor and employed to actuate the driving-belt of the machine, even a'slight increase in distance from the door enabling the belt to work with greater efficiency.

By the use of two small bevel-gears and a larger toothed or spur gear and the pinion, as shown, to convey power from the drivingshaft to one of the usual crossshafts of the loom located at right angles to it, instead of employing a small bevel-gear driving a large beveled gear fast on one of the usual camshafts, as now commonly done, it is possible to do away with the side-thrust exerted against the said large beveled wheel, the said side` thrust being increased with the strain put on the shaft to which the large bevel-wheel is attached.

In some instances the spring of the large bevel-wheel, due to side-thrust and strain, is such as to greatly lessen the efficiency of the loom.

The smaller the diameter of bevel-wheels the less the sidethrust of one on the other, and the more nearlylike in diameter the bevelwheels in mesh one with the other the less the liability of slipping the one with relation to the other.

Figure 1, in side elevation,

represents a sufdated .April '17, 1888.

Serial No. 245,509. (No model.)

icient portion of a loom to illustrate my in vention; and Fig. 2, a top or plan view of Fig. l.

'Ihe loom-frame A has at its end suitable bearings in stands A2 b3 for the drivingshaft A, extended transversely of the machine, the said shaft being provided with a friction-pulley to receive the driving-belt. The said pulley may, and preferably will, be such as shown in United StatesIJatent No. 363,507.

The driving-shaft A is provided at its inner end with a small bevel-pinion, b, which engages an intermediate bevelgear, b', secured to a pinion, b*, free to rotate on a short stud, b2, having suitable bearings in both the frame and the stand b3. The bevel-pinion b4 engages the teeth of and rotates the toothed gear b5, fast on the usual cam-shaft, ZJ, the said gear b5 engaging the gear bl, of equal diameter, fast to the end of the crank or lay shaft 68 and rotating it at the same speed as the cani-shaft.

By introducing the intermediate bevel and spur gears, b' and b4, between the bevel-gear b and toothed wheel b5, it is possible to gain power and at the same time rotate the driving-shaft A6 at a much faster speed than usual as compared with the shafts b and bg, and even with an addition in speed-as for instance, as six to one-it is possible to keep the parts within practical limits oi'spaee, and with gears of the diameter shown and arranged as shown end-thrust is practically done away with.

The construction and arrangement of parts shown and described enable the driving-shaft to be placed at any desirable position between the shafts bG bs, thus elevating it away from the loor farther than in other usual plans wherein a small bevel-gear on a drivingshaft engages a large bevel-wheel on the lower crossshaft, as be.

I claim- 1. The two shafts t and b3, with their gears b5 and bl, of equal diameters, and the drivingshaft A5, provided with a driving-pulley and a pinion, as b, combined with the intermediate bevel-gear, b',v and spur-gear bt, connected together and mounted upon a stud, the combination being and operating substantially as and for the purpose described.

2. The driving-shaft A, its driving-pulley and bevel-pinion b, bevel-wheel b', and its attache'd spur-pinion b4, stud b2, and the main bined with the intermediate bevel. and spur frame having an attached stand, as A2, progear, whereby the said driving-shaft may be vided with a box for the driving-shaft, and located at a point between the two shafts l6 i5 the stand b3, provided with a box for the drivand bl, substantially as described. 5 ing-shaft, and also to support the stud, com- In testimony whereof I have signed my name bined with two shafts, b and 118, having gears to this specification in the presence of two subb5 and 117 of equal diameter, to operate subseribing witnesses. i stantially as described. l 31 The two shafts b6 and b", their gears b5 HORACE WYMAN l lo and b', of equal diameter, and a driving-shaft, Witnesses:

A6, provided with a pulley and with a pin- JOHN B. SYME, ion, b, and bearings for the said shaft, oom- JUSTIN A. WARE.