US1621469A - Electric generator - Google Patents

Description

IAVENTOR. ,BfA/Janny 7. R671?? B. P. REMY ELEGTRIC GENERATOR Filed Dec. ll 1925 March 15, 1927.

A TTURNEY.

Patented Mar. 15, 1927.

BENJAMIN P. REMY, OF INDANAOLS, INDT/NA.

ELECTRC GENERATOR.

Application filed Becember This invention relates to a reciprocating electric generator. p

The chief object of the invention is t provide an electric generator with a sii ric iiux shifting element which has recipiocatory movement in contra-distinction to the general practice of rotational movement.

Another ob]` ect of the invention is to form a 'magneto with a reciprocatory moval'ile member.

rl`he chief feature of the invention consiste in the formation of a plurality of magnetic paths, positioning the same in s+ stantially parallel relation and having a reciprocating magnetic path forming elcment shift from one to the other, wher .if the flux is substantially .shifted from one path to the other thereby generating the dcsired electromotive force in a winding associated with at least one of the parallel magnetic paths.

Another feature of the invention consists in the formation of a plurality of magnetic paths terminating in pole faces in alignm and having common polarity, each pole face having a cylindrical or arcuate surface and the provision of a cylindrical flux carrying member for shifting flux from one path to another of the plurality of paths by reciprocating the member, said cylindrical or arcuate formations permitting the employment of excessively small structural clearances without in any way endangering or interfering with the operation of the device. This construction, therefore, practically elimina-tes all air gap leakage in the several magnetic paths and permits the employment of relatively weaker permanent magnets to obtain the same power generation which heretofore has been 'obtained by rotary flux shifting devices, or by multiple reciprocating keepers or shifting devices.

The Vfull nature of the yinvention will be understood from the accompanying drawings and the following description and claims. V Y V In the drawings Fig. 1 is a side elevational. view of a reciprocatory electrical generator of the magneto type, parts being broken away and showing other parts in section and in detail, the reciprocator being shown in its projected position. F ig. 2 is a side elevational view of the magneto. Fig. 8 is a view similar to Fig. 1 but shows the parts in the retracted position just prior to the movement into the extreme retracted position.

Serial No. 72,525.

fig. #l is a top plan view the magneto. Fig. 5 is a. wiring diagram of the magneto.

ln the drawings il) indicates a base including an angularly extending 'tl-ange 1l for anchorage of the hase upon a suitable support such as an internal combustion engine. ri`he magneto includes a magnetic iiu; con- `cting member 12 and a similar member l?) ined by a member or pole piece 1l at their upper ends. Their lower einls have a common plane or terminate alike and in alineinent. "Ehe bar mr: nets 15 and 16 extend from the top to the bottom of the magneto L l al the sides and are mechanically reta in position by the strap 1'?. Normally im .se-feral magnets are nn gnetically retained i position by engaging th upper pole piece 1land the lower pole )ieee 114. Each of the magnetic conducting elen ents 12 and 15 alternately constitutes 'the central and com- -;ion magnetic path.

The magneto is herein shown provided with a primary winding 18 shown wound upon the magnetic path member 123. ilse wound upon this member is a secondary winding 19. The primary winding 18 is connecten in parallel with a condenser 20 and is short circuited by a circuit breaker having the contacts 21 and 22 specific which will be described later. rEhe .secondary winding 19 terminates in the usual spark gap 23 or spark plug which may be suitably connected thereto. Each ot the path forming members 12 and 13 provides pole faces and a i'nagnetic core or inductor 24 completes the'magnet-ic circuit for each of the paths 12 and 13. 'By shifting the inductor or reciprocator from the position shown in Fig. 1 to the positionshown in Fig. 3, and vice-versa, the magneto will generate an electromotive force. This is because it varies the reluctance of the two paths by moving from one pole face to the other and carrying the 'flux therewith so as to change the magnetic distribution 'in the electrical generator, which changes result iu the generation of the electromotive force.

The mechanical details of the reeiprocalor are as follows:

In the stator a pair of aligned openings 25 and 26 are provided in which is mounted a rcciprocatory rod 27. Secured to the said rod 27 is the inductor or flux shifter 24 included in the magnetic paths. A spring 28 is concentric with stem 27 and is adapted t0 be compressed and cushion the travel of the '1 l details or CTI reciprocator to the left. A spring 29 is concentric with the stem 27 and positioned upon the opposite side of the reciprocator and is compressed in the movement of the stem to the right and cushions said movement of the reciprocator to the right in its extreme position. `When the stem is released from its actuating force spring 29 constitutes the power means for moving` the reciprocator to the left and t-hus shifting its position from one magnetic path to the other.

The means for reciprocating the stem 27 comprises an abutment 30 engageable by a pivoted catch 31 maintained in operative position by a spring 32, said catch and spring being mounted upon a 'lever 33 in turn pivotally supported by base 10 at 34 and having a depending actuating arm or trigger engageable bv reciprocating member 36 having an adjustable connection 37 with said trigger. The power member 36 is a part of the power unit vor equipment upon which the magneto is mounted.

In a bracket 38 carried by the magneto and pivot-ally supported at 3 9 thereby is lever 40 which carries .one of .the contacts, to wit, 22 of the circuit breaker. The other contact 21 .is stationarily mounted in said bracket 38. The lever 40 has a contact portion 41 engageable by the projecting end of the stem 27 when the `stem is projected to the left b v release from the catch 31 and subjected to the force of the compressed spring 29. When the aforesaid release occurs stem 27 moves to the left and lever 33 is moved counter clockwise upon the .return of the reciprocatory power element 36 to the right andby a spring 42 so that when the parts are practically in the position shown in Fig. 1 the surface 43 of catch 31 rides over the abutment or stop 30 and elevates said catch until it drops into the position shown in Fig. 1. Upon the ,reverse movement of the lever 33 through .the medium ofthe `power element 36 the stem 27 is retracted and moves from the position shown in Fig. l .to the position shown i-n Fig. 3. A spring 44 serves to maintain the circuit breaker in closed circuit position .until such time as it is positively actuated and opened by the stem 27 and thus is in timed relation therewith.

The invention claimed is:

1. In lan i-nductor generator', the combination of a permanent magnet, a pai-r of pole pieces each in `magnetic Contact with onev of the poles of said magnet, one of said pole pieces in magnetic contact with two polar projections, and an inductor interposed between the other pole piece and said polar projections and movable linearly from one to the other lof the latter.

2. In an inductor generator,y the combination of a permanent magnet, a pair of pole pieces each in magnetic Contact with one f the poles of said magnet, one of said pole pieces in magnetic contact with two polar projections, said polar projections having their polar faces in linear alinement, and an inductor interposed between the other pole piece and said faces and movable from one to the other of the latter.

3. In an inductor generator, the combination of a permanent magnet, a pair of pole pieces each in magnetic contact with one of the poles of said magnet, one of said pole pieces in magnetic contact with two polar projections, said projections having their polar faces in linear alinement, a` reciprocatory shaft interposed between said faces and the. other pole piece and movable parallel therewith, and an inductor carried by said shaft and adapted alternately to coincide with said pole faces to shift the fiux from one to the other of said projections.

4. In an inductor generator, a unit-ary ystructure including a magnet and spaced pole pieces each in contact with one of the poles thereof; a pair of polar projections in magnetic Contact with one of s aid pole pieces, and the other pole piece and the polar faces of said projections lbored to receive between them an inductor capable of linear vreciprocatory movement from one to the other .of said polar faces.

In an inductor generator, a structure including a magnet and spaced Dole pieces each in contact with one of the poles thereof; a pair of polar projections in magnetic contact with one of said pol-e pieces, the other pole piece andthe polar faces of said projections bored to receive between them an inductor capable of linear Vreciprocatoiy movement from one to the other of said polar faces, a vbearing alined by said bore, and a shaft mounted in said bearing and support ing said inductor.

In witness whereof, I have hereunto af` fixed my signature.

BENJAMIN P. REMY.

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