US1413318A - of toledo - Google Patents

Description

A. E. BUC'HENBERG.

ENGINE STARTER.

APPLICATION FILED APR-14, I 919.

1,41 3,318. ed APR-18, 19221 I INVENTOR. Alvin EBucbenbeIy Y B "I I I I l A TTORNEY lToaZZ whom it may concera:

UNITED ST TES" PATENT O FICE.

; ALVIN BUCHENBERG, F TOLED O, OHIO, ASSIGNOR TO INDUSTRIAL RESEARCH CORPORATION,- OF TOLEDO, OEIQ, A CORPORATION OF'JJELAW'ARE,

ENGINE STARTER.

. aiasis.

a Specification ofLetters Patent. pm i m APR 18,l1922 =,App1ication filedApril 14; 1 919. ,1 Serial No. 289,951.

:Be it. known-that I, ALVIN of Ohio,;have; invented certain new and useful Improvements in .Engine- Starters, ofv whichl declare the following to be a full,

clear, and exact, description.

This invention relates .toimprovements inwstarters for internal combustion engines,

pandcconsists principally in the employment of an electro-magnet for: carrying the movable pinion which engages the fly-wheel,

saidselectro-magnet when energized moving toward; the flywheel, which is composed of amagneticpmatenial. a

i one ,offthe objectsof, the invention is the I provision; of .means for automatically ena vision of means for accomplishing thewgear shifting: operation electro-magnetically.

.gaging and disengaging. the starting gears, 20.

:nstopped;

When the driving motor is started and Another object of the invention is the pro- Another object is the provision of a single means for starting the driving motor, and fordcompletinggthe .circuit. of the electromagnet,. which means may be merely a switch where an electric motor is used for starting. 7 7

Still another object is the mounting of the driving pinion in an intermediate position upon a lever-which is pivoted atone end, and has at least one pole of the electromagnet at its other end, whereby the pull-of the magnet at the end of the lever produces a proportionately stronger effect at the point I of the pinion mounting.

Other objects, and objects relating to details of construction, and economies of man- 7 ufacture will appear as I proceedwlth the description of that embodiment of the invention, which, for the purposes of the present application, I have illustrated in the ace ompanying drawings, in which:

V Figure I is it top plan v1eW partly in cross 7 section, showingan embodiment of my invention, a fragment only of the engine flywheel being illustrated. g Fig. IIi sanend new of the invention as H seen from the left in Fig. I.

Fig. III is across section taken substantially on the line III'III, Fig. I, and looking in the direction of'the arrows.

Fig. IV is a, diagram showing the pre- I gferred arrangement ofv E.- BUCI-IEN- BnRs, a- .citizen of the United States, residing at Toledo, in the county of, Lucas and State electrical, apparatus and connections.

blmilar reference characters refer. to like parts ingeach of theviews.

Inthe drawing, 10 represents an electric 'IIlOtOIOfl/hQSQI'lBS wound type, the armature shaft 11 hav ng fixed thereupon a pinion 12.

- two arms-of a yoke; 13;:straddlerthe (P1111011 12, and thesearmsare; drilled out to receive loosely the shaft 11,,which, therefore,

forms a pivot for said yoke. The latter has rotatably mounted therein a second: shaft 14 uponwhich, 1s fixed a pinion115;meshing -w1ththe pinion 12. The shaft 14am has That arm of the yoke 13. in which the pinion 16 is mounted, "constitutes anielectromagnet. Near its :endspole, shoes 19 extend towardthe fly-wheel 18, being shaped. upon rtheir vlower' surfaces to conformas nearly as ;;possible to theshape ofjthe adjacentsurfaces of therflywheel. ;The magnet coils 20 are Wound around the poleishoesy19. .As

1 diagrammatically shown in'z Eigt IV, Lthese coils 20 maybe'arranged in series with the motor 10, its field winding 21, a suitable source of electric current, such as a storage battery 22, and a switch 28. When the switch 23 is closed a current passes through 1 the motor and through the coils 20 of the electro-magnet. As the latter becomes energized it moves toward the fly-wheel, causing the pinion 16 to engage with the teeth 27. In order to retract the pinion 16 when current has ceased to flow through the coils 20, a tension spring 24 maybe attached to the free end of the yoke 13, the opposite end of the spring being secured to any convenient support.

I Instead of the pinion 16, a drive wheel of some other type may be employed if desired, and, similarly, the teeth 27 upon the fly wheel may be omitted altogether, or, if desired, someother type of teeth may be used. Furthermore, the number of gears or pinions vin the yoke 13 may be decreased or increased without departing fromthe spirit of my invent-ion. I I

, Iam aware that the particular embodiment of my invention above described, and illustrated in the accompanying drawings,

is susceptible of considerable variation without departing from the spirit thereof, and therefore I desire to claim my invention broadly, as well as specifically,'as indicated by the appended claims.

claim as my invention:

1. In combination with the fly-wheel of an internal combustion engine, said fly-wheel being built of magnetic material and provided with gear teeth along its periphery, a motor, a shaft therefor, an electro-magnet radially pivoted upon said shaft and capable of a limited amount of swinging motion thereon towards and away from said flywheel, the poles of said magnet facing said fly-wheel and in juxtaposition therewith, a pinion carried by said magnet and driven from said motor shaft, said electro-magnet when energized being drawn towards the said fly-wheel until said pinion meshes with the teeth on the fly-wheel.

2. In combination with the fly-wheel of an internal combustion engine, said flywheel being built of magnetic material and provided with gear teeth along its periphery, an electric motor, an electro-magnet pivotally mounted concentric to the axis of said motor to have a limited swinging movement about that axis towards and away from said fly-wheel, the poles of said magnet facing said fly-wheel and in juxtaposition therewith, a source of electric current, electrical connections therefrom to said motor and electro-magnet, a-pinioncarried by said electro-magnet and driven by said motor, and means for completing said electrical. connections.

3. In combination with the fly-wheel of an internal combustion engine, said flywheel being built of magnetic material and provided with gear teeth along its periphery, a motor, an electro-magnet pivotally mounted concentric to the axis of said motor, the poles of which face sai-d fly-wheel and lie close thereto, a pinion mounted between the pivot of the electro-magnet and the outer one of said poles, and a driving connection between said pinion and said motor, said electro-magnet when energized being swung towards said fly-wheel about said axis until the teeth of the fly-wheel are engaged by said pinion.

a. In a drive mechanism, the combination of a driven member formed of magnetic material; a motor shaft; an electro-magnet mounted on the shaft for radial pivotal movement thereabout; a gear carried by the electro-ma net, and operatively connected to the shart; and means for magnetically energizing the electro-magnet and a portion of said driven member.

5. In a drive mechanism, the combination of a driven member formed of magnetic ma- 'terial; a motor shaft; an electro-magnet mounted on the shaft for radial pivotal movement thereabout; a gear carried by the olectro-magnet and movable into engagement with the driven member; said electro magnet being positioned in juxtaposition with the engine member but non-contractible therewith.

In testimony whereof, I affix my signature.

ALVIN E. BUCHENBERG.

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