US1333119A

US1333119A - Hand-generator

Info

Publication number: US1333119A
Application number: US238354A
Authority: US
Inventors: Krag-Moller Karl Kristian
Original assignee: Individual
Current assignee: Individual
Priority date: 1918-06-05
Filing date: 1918-06-05
Publication date: 1920-03-09
Anticipated expiration: 1937-03-09

Description

K. K. KRAG-MO'LLER.

HAND GENERATOR. APPLICATION FILED JUNE 5.1918.

1,333,119. Patented Mar. 9,1920.

man msTIAN'me-munn, orxrnnnnmxsnnne, DENMARK.

' HAND-GENERATOR.

Specicatioof Letters Patent.

Patented Mar.9,192o.

Application med-June 5, 191s. serial No. 238,354.

l To all whom z't may concern.'

'Be lit known that I, KARL KR1sTIAN. KRAG-MLLER, of Frederiksberg, in the- Kingdom of Denmark,have invented certain new and useful Improvements in orl Relating to Hand-Generators, of which the following is a specification.

The present invention relates to an electromechanical pocket-lamp driven by hand and consists of a suitably constructed and shaped generator of alternating current, which in connection with an also es ecially constructed hand-motor has the e ect that the light is produced with a quite smallv consumption of power and that the whole apparatus may have' a fiat, substantially cylindrical shape,

-making it especially adapted to be disposed and kept in pockets, pouches and the liket A device embodying my invention is illus trated in the drawing.

Figure 1 shows a side-view ofthe device embodying my invention, the side-wall being removed.

Fig. 2 shows an axial cross-section through the said device. Fig 3 shows a side-view of'the'said device.

The cylindrical part. of the saiddevice consists of a ring 1 provided at one side with a nunber of radial extensions 2, the ends of which have shoes 3, the said shoes being concentrical with the ring 1. Within the said ring 1 is arranged a projection which supports anotherring 4.having radial extensions 5, which at the ends are provided with shoes 6, the`latter being concentricalv with the outer ring. The shoes 6 penetrate into spaces between the shoes 3 and form together with the latter an inward cylindrical surface, without the shoes 3 and 6 touching each other. The. inward extensions or Iinwardly extending members 2 and 5 with their terminal 'pole face providing shoes 3 Vand 6 support the winding, and hold it in place.

The rings 1 and 4, the extens1ons 2 and 5 and the shoes 3 and 6 form together an annular chamber, which is filled by an annular wire-spool 7, and all the said parts form an electromagnetic system, so that, when an electric current passes through the spool 7, magnetic poles with contrary magnetism will be developed in the shoes 3 and 6.

In the center of the ring 1 is arranged a 1 shaft 8, one end of which is fastened in a cover 16, while the other end carries a'nut *On the shaft 8 is arranged a revolvin claw foot member, members being disposed alternately in a 9 which serves to keep a cover 17 in place. box 10, carrying two contiguous steel dis s of which one is provided with arms 1l having shoes 12 in the ends, while the other is rovided with arms 13 the ends of which ave shoes 14. These artsform together va l permanent magnet .with the shoes 12 and 14 as opposite poles.

The said two disks withy their arms and shoes, aforesaid constitute a sleeve, 'which has at each end a the projections of said cylindrical surface and constituting alternate north and south poles.

The shoes 12 and 14, without touching each other, form a cylindrical surface, which is located concentri'cally within the cylinder formed bythe magnetic poles 3 and 6 and will when rotating' produce an electric current in the winding 7. The magnetic poles 3 and 6 together with the extensions 2 and 5 are provided with incisions 15 Fig. l-to prevent injurious currents.

The permanent magnetic poles 12 and 14 are rotatedby means of a hand-motor arranged in the ring, the said hand-motor consisting of an arm 18, the latter beirg essentially formed as an oblique triangle, revolving around a journal 19 in the cover 17 and passing outside the ring 1, the said arm being here provided with a presser-shoe 20 and a hook 21. which in the closed position is retained by a hook or ring 22.

In. the triangle is arranged around the"I pivot 19 as with a pinion 24, which, by means of apawl and pawl-wheel or similar arrangements notwheels 26 and 27, makes the box 10 rotate,

the saidI box 10 being provided with a pinion 28 and .carrying the permanent magnets. The triangles 18 is returned to its extreme position by means At the outside of the cylinder 1 is arranged an electric lamp 30 and behind the latter is found a projection 31.

The device embodying my invention is carried in the position shown in- Fig. 3 with the thumb around the projection 31 and the fore-finger around the presser-shoe 20. 'By approaching the said two fingers to each other the presser-shoe 20 is pushed inward, and the rack 23 will then through the wheel work make the permanent magnets 12 and 14 of a spring 29.-

center a rackh23, which engages l rotate swiftly, whereby an electric current is generated in the winding 7 and as the circuit is closed through the lamp 30, the latter will bemade to shine.

When the ingers'again are removed the spring 29 leads the triangle 18 togetherywith the presser-shoe 20 back to its extreme position, whilethe magnets'by means of a gearing between the pinion 24 and the cog-wheel 25 will continue to rotate and to generate current for the use of the lamp. Q

The gearing of the wheel work and the bulk of the permanent magnets are adjusted in such a manner that a steady and strong light may be produced by a suitable number of pressures-v-for instance-one or two pressures in the second.

If a steady light is to be produced by a considerably lesser number of pressures, or if the lamp is only to shine a lcertain time after the motive power has ceased, a spring possessing a suitable accumulative power is inserted between the pressen-shoe '20 and the rotating box 10. y p

It is not necessary that the ring- 1 shall haveperfectly cylindric shape, it can also be four or many' sided; nor is' it necessary that the ring be constructed exactly as shown on ring 4 can for instance be made in one piece with the ring 1 or with the part around the machinery. p

An especial advantage by the invention consists therein thatthe spring 29 together with the wheels 24, 25, 26 and27 are arranged on pivots which are fastened on the lateral cover 17, which is kept in its place by means of a nut 9 on the end of the shaft 8, the latter being fastened to the opposite vcover 16. en the nut 9 is removed, the

' cover 17 and the whole machinery can be taken out and inserted collectively.

Having now particularly described and ascertained the nature of my said invention I declare that what I claim is:

1. In a generator, the combination of a rotatable magnet comprising alternate north and south poles placed in a cylindrical surface, hand operated means for giving an 1mpulse to the magnet, spring-operated means for returning said means to its 'initial posi'- tion, an annular generating winding and a flat casing inclosing said winding and said magnet, said casing comprising a ring of magnetic material provided with spaced inwardly projecting members terminating -in pole faces disposed in a cylindrical surface, said pole faces forming with the projecting members supports for the generating winding.

1an annular gener ating of the -ring which forms the edge which consists l 'each other and collectively comprising a 2. In a generator, the 'combination of a permanent magnet which consists of a sleeve mounted on a shaft, a claw foot member mounted on each end ofthe sleeve,'the projections of said members being disposed alternatelyin a cylindrical surface and consti'- tuting alternate north and south' poles, hand operated means for rotating said magnet, a casing supporting and inclosing said magnet and comprising a ring provided vwith spaced inwardly extending lmembers terminating in faces disposed in a cylindrical lsurface coaxial with said magnet. l

3. In a generator, the combination of a rotatable magnet comprising alternate poles of opposite polarity placed in a cylindrical suryface, hand operated means for giving an im-- pulse to the magnet, mechanical means for returning said means to its initial position, winding, and a flat casing' inclosing said winding and said magnet, said casing comprising a ring of magnetic material provided with inwardly projecting members terminating in pole faces arranged in a cylindrical surface, the said members supporting said winding.

4. In a generator, the combination of a rotatable magnet comprising alternate north and south poles placed in a cylindrical surface, hand operated means for giving an impulse to said. magnet, an annular generating winding and a flat casing inclosing said winding and said magnet, said casing comprisingl a ring of magnetic material provided with spaced inwardly projectingmembers 95 terminating in pole faces disposed in a cylindrical surface, said pole faces forming with the projecting members supports for the generating winding. I v

5. In` va generator a permanent magnet of two` parts in contact with sleeve mounted on a shaft each of said parts being provided with a claw-foot member, the projections of said members being disposed' 105 in a cylindrical surface and constituting alternate north and south poles, in combination with hand operated means for rotating said magnet and a casing supporting and inclosing said magnet and provided with spaced inwardly extending members terminating in pole faces disposed in a cylindricalv surface coaxial with said magnet.

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

KARL KRISTIAN Kme-MLLER.

Witnesses:

JACQUES JENSEN, AGNES HERDAM.