US474328A - Samuel e - Google Patents

Description

(No Model.)

I S. E. MOWER. ELECTRIC MOTOR MECHANISM.

No. 474,328. Patented May 3.1892.

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UNITED STATES PATENT OFFICE.

SAMUEL E. MOWVER, OF NEIV HAVEN, CONNECTICUT, ASSIGNOR TO HENRY G. THOMPSON do SONS, OF SAME PLACE.

ELECTRIC-MOTOR MECHANISM.

SPECIFICATION forming part of Letters Patent No. 474,328, dated May 3, 1892.

Application filed May 21, 1891- Serial No. 393,600. (No model.)

T on whom it may concern: of the said disk 0, pinions c and gears c of a Be it known that I, SAMUEL E. MOWER, of diameter substantially larger than the said New Haven, county of New Haven, State of pinions. The gears c mesh with a substan- Connecticut, have invented an Improvement tially small gear 0 formed integral with or 55 5 in Electric-Motor Mechanism, of which the secured to the collar 11 The pinions c mesh following description, in connection with the with a substantially large gear 0 formed inaccompanying drawin gs,isaspecification,like tegral with or secured to a sleeve 0 loose on letters on the drawings representing like the armature-shaft. The sleeve 0 has keyed parts. or otherwise secured to it a wheel 0 having [O This invention, relating to the rotation of on it two series of sprocket-teeth e 0 which a shaft or axle by means of electricity, is esreceive, respectively, sprocket-chains c 0 pecially adapted to be used on electricallywhich in turn pass over sprocket-wheels c propelled cars, and is an improvement upon 0", secured to axles a a. The disk 0 is enthe mechanism shown and described in United circled by a friction strap or brake 0 having 15 States Patent No. 440,717, granted to me Noits ends adapted to be brought together to vember 18, 1890. hold the disk stationary by a rod c having My present invention has for its object to its end screw-threaded to engage threaded construct apparatus as will be described, openings or sockets in the ends of the said wherebythespeed-reducingmechanismshown strap. 1 20 and described in the said patent may be In operation, the car being in motion, the employed to transmit motion to a shaft or armature-shaft b, the collar b and gear 0, axle from the armature-shaft of an electric firmly secured thereon, are continuously romotor independent of the said axle. tated, and the disk 0 being held in fixed posi- The particular features of my invention tion by the brakeband the gears c are re 25 will be pointed out in the claims at the end volved, rotating the pinions c and thereby of this specification. rotating the gear 0 and sprocket wheel. Figure l is a top or plan view of a sufficient While the ear is at rest the friction or brake portion of a car-truck provided with an elecstrap 0 is loose upon or relaxed from the trio-motor mechanism embodying my invendisk 0, and the said disk being loose on the 30 tion to enable it to be understood; Fig. 2, a collar 12 will travel around said shaft with longitudinal section of the apparatus shown the gears c and 0 without producing movein Fig. 1 on line a: a; Fig. 3, a sectional detail ment of the gear 0 which is held stationary on line y 11 Fig. 1. by the load. \Vhen it is desired to start the The axles a a, provided with the wheels a car, the operator turns the rod 0 so as to 35 are and may be of any usual or well-known bring together the ends of the split ring.,brakeconstruotion.such as now commonly employed band, or friction-strap, and thus clutch the on electric-railway cars. The car-axles a a, disk 0- and hold it stationary. The gear 0 reas herein represented, support bars a a upon volving with the shaft, rotates the gears c which rest cross-bars a of", constituting the and pinion c and thereby causes the gear 0 0 supports for an electric-motor mechanism. to revolve. The car may be set in motion at The electric motor, which may be of anyusual any desired or required speed by regulating or well-known type of machine and the lieldthe friction upon the disk 0 In practice the magnets of which are represented by a, has inclosing case b will preferably be filled or its armature-shaft b extended through the partially filled with oil or other lubricant. 5 5 box or case b and supported at its ends by The gears and pinions herein represented bearings in said box or case. are toothed gears and pinions, and thereby The armature-shaft b has keyed or otherpositively engage each other and do not slip. wise fastened to it a collar upon which is I do not desire tolimit myself to a sprocketsupported frictionally a disk 0, through which chain passing over and driven by sprocket- I03 50 is extended, preferably, a plurality of shafts wheels as a means of transmitting power from 0', upon which are mounted, on opposite sides the sleeves on the armature-shaft to the drivin g-axle, as it is obvious that other means may be employed.

I claim 1. The combination, with an axle, of an elec- 5 tric motor to rotate it independent of the said axle, a sprocket-wheel on the axle, a sprocketchain, a sleeve on the armature-shaft of the motor, a sprocket-wheel on said sleeve, a gear on said sleeve, and reducing-gearing between said gear on the sleeve and the armatu re-shaft, substantially as described.

2. The combination, with an axle, of an electric motor to rotate it independent of the said axle, a sprocket-wheel on the axlo,a sleeve on the armature-shaft of the motor, a sprocketwheel on said sleeve, and sprocket-chain, a gear on said sleeve, a disk, as c, mounted on the armature-shaft, one or more shafts carried thereby and provided with a pinion in mesh with the said gear on the sleeve and also with a gear meshing with a gear fast to the shaft, and means for varying the relative speed of the disk and shaft, substantially as described.

3. The combination, with an axle, of an electric motor to rotate it, a sprocket-wheel on'the axle, a sprocket-chain, a sleeve on the shaft and sprocket-wheel thereon, a gear on said sleeve, a disk, as c, loose on the shaft, one or more shafts carried by it and provided with a pinion engaging the gear on the sleeve, and with a gear engaging a gear fast to the shaft and with a friction device engaging said disk, substantially as described.

4. The combination, with two axles, of a sprocket-wheel on each axle, an electric motor and supports therefor for supporting it between the said two axles, a sleeve on the armature-shaft of said motor, two sprocket- 40 wheels on said sleeve, two sprocket-chains the armature-shaft and means for controlling the operation of said reducing-gearing, substantially as described.

5. In' combination with an axle of a railroad car, an electric motor mounted on an axle between the driving-wheels to rotate the same, a sleeve mounted on the amature-shaft for transmitting the power to the axle, and

speed-reducing mechanism connecting the sleeve to the armature-shaft, comprising a toothed gear on the sleeve, a toothed gear on the shaft, a disk or drum located between said gears and mounted loosely on the shaft, differential toothed gears and pinions borne by said disk on either side thereof, adapted to respectively engage the toothed gear "on the shaft and toothed gear on the sleeve, substantially as described.

6. In combination with an axle of a railroad-ear, an electric motor mounted on the axle under the car and between the drivingwheels to rotate the same, a sleeve loosely mounted on the armature-shaft for transmitting the power to the axle, and speed-reducing mechanism connecting the sleeve to the armature-shaft, comprising a toothed gear on the sleeve, a toothed gear on the shaft, a disk or drum located between said gears and mounted loosely on the shaft, differential toothed gears and pinions borne on either side by said disk, adapted, respectively, to engage the toothed gear on the shaft and toothed gear on the sleeve, and means for holding and releasing said disk or drum at will, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

SAMUEL E. MOWER.

lVitnesses:

HENRY G. THoMPsoN, L. H. DAYTON.

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