US794886A - Support for dynamos. - Google Patents

Description

PATENTED JULY 18, 1905.

W F RICHARDS SUPPORT FOR D YNAMOS. nruouxon FILED em -r. 21. 1904.

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UNITED STATES Patented July 18, 1905.

PATENT OEErc WILLARD F. RICHARDS, OF BUFFALO, NEl/V YORK, ASSIGNOR TO GOULD COUPLER COMPANY, OF NEWV YORK, N. Y.

SUPPORT FOR DYNAIVIOS.

SPECIFICATION forming part of Letters Patent No. 794,886, dated July 18, 1905.

Application filed September 2'7, 1904. Serial No. 226,208.

To all whom it may concern:

Be it known that I, WILLARD F. RIoHARDs, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New 5 York, have invented a new and useful Improvementin Supports for Dynamos, of which the following is a specification.

This invention relates to supports for electric dynamos which are mounted on railway- IO car trucks and driven from one of the caraxles for generating the electric current used for lighting the car or for other, purposes, and the invention is directed more particularly to improvements in supports of the char- 5 acter disclosed in United States Letters Patent granted September 13, 1904, to C. M. Gould, assignee of myself, No. 769,920.

The primary object of the invention is to provide a cushioning support of simple, strong, and desirable construction for relieving the dynamo from the destructive effects of shocks and jars in a vertical direction to which the truck is subjected in service.

In the support described in said patent the 5 dynamo is pivoted and held positively from movement in a direction away from the caraxle by which it is driven, but is permitted to yield in a direction toward the drivingaxle, so that the driving chain or belt will not 3 be snapped or stretched when the truck-frame and the dynamo carried thereby are suddenly shifted relative to the car-axle for any reason, which occurs, for instance, when the carbrakes are applied, on account of the play of the journals in their boxes and the boxes in their guides. Another object of the invention is to provide said patented support with a simple and inexpensive adjunct for cushioning the dynamo against shocks in a vertical 4 direction, in addition to the means for allowing the dynamo to yield toward the car-axle. In the accompanying drawings, Figure 1 is a longitudinal sectional elevation of a portion of a railway-car truck provided with a dynamo-support embodying the invention. Fig.

2 is a framentary plan view thereof, partly in section, in line 2 2, Fig. 1. Fig. 3 is a transverse sectional elevation thereof in line 3 3, Fig. 1.

Like letters of reference refer to like parts 5 in the several figures. Q

The truck-frame is of ordinary construction.

a and I) represent, respectively, one of the end and intermediate transverse truck-beams, 5 5 0 one of the car-wheels, and d its axle.

E represents the dynamo, or it may represent a containing shell or casing for the dynamo, and e the drive chain or belt for the dynamo connecting chain-wheels or pulleys on the car-axle and dynamo-armature shaft.

The dynamo-support, like that described in said patent, comprises two parallel supporting brackets or bars F, each having a hori- Zontal portion which extends longitudinally 6 3 of the truck from the transverse intermediate beam Z) and passes over and rests on the end beam (6, and a vertical leg f, which depends below and in front of or outside of the end beam. The brackets or bars F are bolted to the end and intermediate truck-beams, as shown, or may be attached thereto in any other suitable manner and are stifl'ened and strengthened by inclined braces f, which pass beneath the end beam (0 and have their ends riveted or otherwise fixed to the depending legs and horizontal portions of the brackets. The dynamo, as described in said patcut, is pivoted at its lower part to oscillate toward and from the driving car-axle. In the present support, however, the pivot is not fixed, but is mounted to slide vertically on the depending legs of the supporting-brackets and is held normally in a central position by cushioning-springs, which allow the pivot to 5 yield to a limited extent both up and down.

Gr represents the pivot bolt or pin, which passes through a perforated lug g at the inner side of the lower portion of the dynamo and through perforated hinge-lugs H. The latter 9 preferably have vertical stems It projecting upwardly and downwardly therefrom, which slide and are guided in holes in fixed ears /1/, projecting outwardly from the vertical legs of the brackets F, on which they are formed or secured in any suitable way. The cushioningsprings shown at I are coiled about the stems of the hinge-lugs between shoulders on the latter and the fixed guide-ears on the brackets. These springs yieldingly hold the hinge-lugs stationary in the central position shown, but cushion the pivot G and dynamo supported thereby and prevent any severe shock in a vertical direction from being transmitted from the truck-frame to the dynamo.

The dynamo is held positively from movement on its pivot away from the driving caraxle and permitted to yield toward the axle by-a device which is similar in principle to that described in said patent, but which is preferably constructed as follows: K represents a rocking pin which extends loosely through a lug is on the top of the dynamo E in a direction parallel with the pivot-bolt G and having eyes at its opposite ends, through which pass eyebolts Z, which are pivoted to the brackets F by a bolt or pin Z passing through the eyes at the inner ends of the eyebolts and through perforated lugs on the upper portion of the brackets. Adjustable stop-nuts m are screwed on the threaded shanks of the eyebolts l outside of the rocking pin K and positively hold the dynamo from outward movement, while coil-springs 77, surround said eyebolts between the inner side of the rocking pin K and adjusting-nuts n, screwed on the inner portions of the shanks of the eyebolts.

The stop and ad justing-nuts m and a are sup-- plemented, as usual, by lock-nuts to hold them after adjustment. The springs n press the rocking pin K out against the stop-nuts m, but allow it and the dynamo to yield inwardly or toward the driving car-axle to relieve the drive chain or belt from undue strain. The eyebolts being pivoted at their inner ends to the brackets and at their outer ends to the dynamo through the medium of the rocking pin K do not prevent the vertical movement of the dynamo with its cushioned pivot. The dynamo is thus enabled to yield inwardly to prevent injury to the drive chain or belt and at the same time can yield vertically up and down to relieve it from the jars and shocks to which the car-truck is subjected in use.

The supportdescribed is intended especially for dynamos; but it is manifestlysuitablealso for attaching motors to car-trucks.

I claim as'my invention 1. The combination of asupport, a dynamo, a pivotal connection between the dynamo and said support which is capable of vertical movement on said support, means for yieldingly opposing the vertical movement ofthe pivotal connection, and means which normally hold the dynamo stationary and which positively hold the dynamo from pivotal movement in a pivotal support for the dynamo whieh'is mounted to slide vertically, means for yieldingly opposing the vertical movement of said pivotal support, drive connections between the dynamo and the car-axle, and means which acts to normally hold the dynamo stationary and which positively holds the dynamo from pivotal movement away from the car-axle but permits a pivotal movement of the dynamo toward the car-axle, substantially as set forth.

4. The combination of asupport, hinge-lugs mounted to slide vertically on said support, 4

springs arranged on opposite sides of said hinge-lugs to yieldingly oppose the vertical movement thereof, a pivot-pin connecting said hinge-lugs, a dynamo pivoted on said pin, and means for yieldingly holding said dynamo from pivotal movement, substantially as set forth.

5. The combination of a car-truck, brackets secured to said truck and having depending vertical legs provided with projecting perforated ears, hinge-lugs having stems sliding in said perforated ears, coil-springs surrounding said stems between said hinge-lugs and said ears, a dynamo pivoted to said hinge-lugs, and means for normally holding said dynamo against pivotal movement, substantially as set forth.

6. The combination with a car-truck, and dynamo, of brackets secured to the truck and having vertical portions, parts mounted to move vertically on said vertical portions of the brackets and pivotally connected to the lower portion of the dynamo, means for opposing the vertical movement of the dynamo, and means which connect the upper portion of the dynamo with the truck and permit vertical and pivotal movement thereof, substantially as set forth.

Witness my hand this 19th day of September, 190A.

WILLARD F. RICHARDS.

Witnesses:

EDWARD (J. HARD, A. L. MOGEE.

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