USRE11899E - Means for propulsion of vehicles by electricity - Google Patents

Description

. No. ",899. Raissuad Mar. 26, IBM.

r. .1. NEWMAN &' J. LEDWINKA. l MEANS FDR PROPULSION 0F VEHICLES BY ELECTRICITY.

, A lmfian fllecI Fab.. 11, 1901. v i

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No. ||,s99, Beissued Mar. 26, mm.

F. .1. NEWMAN & J. LEDWINKA. MEANS FQR PROPULSION 0F VEHICLES BY ELECTRICITY.

A lication filed Feb. 11, 1901.

2 Sheets.-Shoef 2.

' qrl mmb UNITE STATES PATENT OFFICE.

I FREDERICK JJNEWMAN AND JOSEF LEDWINKA, OF CHICAGO, ILLINOIS, 'ASSIGNORS, BY MESNE ASSIGNMENTS, TO THE HUB MOTOR COMPANY,

OF NEW JERSEY.

MEANS FOR PF IOP ULSION OF-VEHICLES Y ELECTRICITY.

- PECIFIGATION forming part of Reissued Letters Patent No. 11,899, dated March 26, 1901.

Original No. 638,643, dated December 5, 1899. Application for reissue filed February 11, 1901. serial No. 46,949.

To all whom, it may concern:

Be it known that we, FREDERICK J. Nnwe MAN, 'a citizeu of the United States, and J OSEF LEDWINKA, a subject of the Emperor of Austria-Hungary, both residing at the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Means for Propelling Vehicles by Electricity, .of which the following is a specification.

Our invention relates to the propulsion ofv vehicles by the use of electricity as a motive power; and it has for its object to provide a means for applying such power to vehicles of.

the character. heretofore in use Without materially changing the appearance of such vehicles and withoutexposing the driving'mechanisln. In order to accomplish our purpose, We embody the driving motors and their so power-trausmittinggearingin the wheel-hubs panying drawings, in which and supply electric energy to the motors from a suitable source, which may be located in any -convenient part of the body of the vehicle.

- Our invention principally consists in embodying the driving electricmotors and the power-transmitting gearing in the hubs of the vehicle-supporting wheels.

Ourinvention is illustrated in the accom- Figure 1 is a central longitudinal section through the hub of a wheel mounted upon a non-rotatable shaft and having our invention embodied therein. Fig. 2 is a detail view of contact-rings through which current is supplied to the electric motor that is embodied in the hub. Fig. 3 is a view, partially in end elevation and partially in section, taken'on line III III of Fig. 1. view taken on line IV IV of-Fig. 1. Fig, 5is a detail view of a bracket for supporting one of the members of the power-transmitting gearing;

I the drawings we have shown a portion (n w one vehicle-axle and atone, wheel mounted thereon, it being of course understood that the. usual number of axles and wheels may be employedand that{ 'tlievehi I:

Fig. 4 isa sectional ing-wheels may be driving-wheels or that less than the whole number of wheels may be pro vided with power mechanism',a s may befound convenient or desirable.

In the drawings, 1 is anon-rotatable vehiale-axle, the outer cylindrical ends 2 of which receive the hubs 3 of suitable supporting wheels, only one of said hubs being, however, shown in the drawings. The hub-shell, as

shown, comprises four-parts, the middle part The hub-shell is provided with ball- bearings 11 and 12 at itsrespective ends, the ballbearings 11 being located within the cap 7' and the bearings 12 within the inner end of,

the portion 8, adjacent to the cap 10. The portion 4 of the shell is provided with fieldmagnet pole-pieces 13, which are surrounded by the field-magnet coils 14. The motelarmature 15 and the commutator-cylinder 16 are provided withball-bearings l'Z-at the respective ends of the combined structure and with a pinion 18, which meshes w'ith'a gearwheel 19. The gear-wheel 19 also meshes with the internal gear or rack 9 and is journaled by means of ball-bearings upon a stubshaft 21, projecting laterally from a bracket 22, which is clamped upon a. squared portion 23 of the axle 1.

' It will be seen that the field-magnet and the armature are bothrotatable and that the gearing is such that they rotate in opposite directions. In order to-suppl'y electric en ergy to" the motor, we provide the cap 7 with vfourcontact-rings 24, with which engage corresponding brushes,which aite pressed against the rings by a spring 25,- locatedqin a recess,

in the end of the axle. The conductors 26 for supplying electrical energy to the brushes extend through a recess or groove 27 in the axle. The commutator-brushes 28 are supported by the hub-shell, as shown, and therefore rotate with it.

The speed at which the vehicle is driven may obviously be varied by varying the structure of the motor, the ratio of the members of the gearing, or the energy supplied to the motor, or as many of these elements as it may be found desirable to vary.

\Ve claim as our invention- 1. The combination with a non-rotatable vehicle-axle, of a supporting-wheel the hubshell of which constitutes an electric-motor field-magnet frame or ring and an armature and power-transmitting gearing within the hub-shell, said hub-shell and armature being journaled to rotate in opposite directions around said axle.

2. A wheel for an electrically-propelled vehicle having a hub that serves as an electricmotor field-magnet, in combination with an armature and power-transmitting gearing inclosed within the hub.

3. A wheel for an electrically-propelled vehicle provided with a hub-that embodies an electric motor and the shell of which is in part the field-magnet frame or ring, and, as awhole, completely incloses the other parts of the motor.

4. A vehi .-le-wheel having a hub that em bodies an electric motor and gearing between the armature and the field-magnet thereof, a portion of the hub-shell constituting the fieldmagnet frame or ring and all the other parts being inclosed in said shell.

5. A vehicle-wheel hub comprising a shell the spoke-supporting part of which constitutes an electric-motor field-magnet frame or r ng, in combination with field-magnet polepieces and coils, a combined armature and commutator-drum and gearing between the same and the hub-shell, all of said parts being inclosed in said shell.

6. A vehicle-wheel hub embodying an electrio motor, the field-magnet frame of which 1s the spoke-supporting part of the hub-shell and the other parts of whichare all inclosed in the hub-shell.

7. In a vehicle-wheel hub, and electric motor and gearing between the motor-armature and the hub-shell, the motor-coils, commutat-or, gearing and bearings being all completely inclosed within the hub-shell.

8. The combination with a non-rotatable vehicle-axle, of a wheel having its hub rotatably mounted on the axle and embodying an electric-motor field-magnet, an armature independently mounted on the axle and powertransmitting gearing, all inclosed within the hub-shell.

9. In an electrically-propelled vehicle, the combination with a non-rotatable axle, of a wheel having a hollow hub provided with coils and with. an annular, internal gear and journaled on said axle, an armature provided with a pinion and also journaled on said axle, a bracket secured to the axle and a gearwheel supported on the bracket and meshing with said internal gear and said pinion.

10. In an electrically-propelled vehicle, the combination with a non-rotatable axle, of a wheel having a hollow hub provided with field-magnet coils and with an annular, in-,

ternal gear journaled on said axle, an armature provided with a pinion and also journaled on said axle, a bracket secured to the axle and a gear-wheel supported on the bracket and meshing with the internal gear and the pinion, said hub completely inclosing all of said other parts.

11. A vehicle-wheel hub embodying an electric motor for rotating the same, the fieldmagnet coils, the armature, thecommutator, and the bearings being all completely inclosed within the huoshell.

In testimony whereof we have hereunto subscribed our names this 1st day of February, 1901.

FREDERICK J. NEXVMAN. JOSE-F LEDWINKA.'

Witnesses:

O. LLBELCHER, BIRNEY HINES.

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