US959238A - Talking-machine mechanism. - Google Patents

Description

C. LINDSTRM. TALKING- MAGHINE MECHANISM. APPLICATION FILED FEB.27, 1909.

c.l LINDSTRM. TALKING MACHINE MEGEANISM.

APPLICATION FILE@ FEB. 27, 1 909.

` Patented May 24, 1910.

2 BHEETSTSHEHT 2.

Fim.

Tra/Mfrs.

' naar. msramor BERLIN, cnam.

TALKING-mama ninemsn.

'Application tiled February 27, 1909. Seriallo. 480,447. l

To all who/fri 'it concern: i I

Be it known'that I, CRn LINDs'rnM,a

.citizen of the Kingdom of Sweden', residing in the city of Berlin,

iiithe Empire of Germany, have. invented certain new and useful Improvements in Talking-Machine Mechanism, of which the following is a speciica-tion.v My present' invention relates to mechani isms for talking machines and a primary obstarting of the subject-matter ject is to provide an improveddevicc for and stoppingythe sound-boit con.-

taining diaphragm. The arrangement of the driving mechanism 'andv the meansfor startingof the record-plate do not form part ofthe invention.'

In order that the invention my be clearl A understood reference will be made to the accompanying drawings in which one`constructional :term isA represented by wayv` of Figure l is a top plan view'of the mechanism and talking machine, part ofthe record being 'shown broken away and `the mechanism in .the box being shown in dotted lines, whereas Fig. 2 is a likeview in full lines of the releasing mechanism, and Fig. 3

is a. side elevation of the machine, part of the side of the case being broken away, and

Fig. 4 is a rear end elevation, part of the case being shown broken away.

Similar reference letters denominate like parts in all views.

Referring to the drawings, in the case a is arranged in the usual manner the clockwork for driving in well-known manner, the plate b which holds the record or disks c. The bracket d carries the usual horn, which is not represented in the drawing, and one end of the sound-arm e, at the other end of which the sound-box f is attached. The arm e is adjusted, according to the diameter of the record in each instance, by a bent lever 'g which likewise forms no part of the subjectmatter of the invention and which is y held by means of the set-screw 7i in a link z', so that when the sound-arm swings outward its movement is limited by a buffer or stop c.

' The arm e swings around an axle l, the position of which is of decisive importance for the present invention. In the non-'working position this axle is located slantwise, as clearly shown in Figs'. 3 and 4:; consequently the arm e carrying the box f is held by its own weight in the swung-around position and lying against the strip la. Now when a coin is inserted through e slot m it runs along .position ready Testingagainst a stop .the channel it andfalls into the box o wlii x is brought bythe Weight of the coin into the for playing and releases the driving mechanism in known manner. The clockwork then moves, brought, as hereinafter described, by the releasing device, 'shown clearly in Fig. 2, into the vertical position and consequently the needle of thesoundbox falls'into the groove of therecdrd. l

Referring new :particul'arly to Fig. 2,the aXleZ- rests with its bottom end on a bellcrank lever givoted at gz-o'n the plate 1'. This leverg a so carries a'toothed wheel s mounted eccentrically thereon and meshing with -teeth on the spring barrel t of the driving mechanis A spring u attached to the plate 1' and lever g constantly tends to keep the wheels in engagement with the spring barrelj4 On theaxle l is fixed a member e carrying at one end a s'etescrew laaricl pro lvided at its other end with teeth, as clearly shown, ada ted vto be engaged by a springpulled .paw fw when the axle Z is rotated outward. The pawl w is kept-in engagement with'the member o owing to its end being held, as explained hereafter, by the bent arm m provided with a shoulder an and movable around the pivot m2 on the plate i: This arm a: is kept in its normal position g3 on the lever z by the spring y attache to the plate i'. ilow when the arm eis in the outside position shown in Fig. l .and the axle-Z is in a slant,- ing position, the lever g is in the position shown in Fig. 2. When the driving mechanism is released, as` above described, the barrel t is rotated,fsay clockwise, and drives the eccentric wheel e inthe direction in'dicated by its arrow A, whereby its pivot is driven that lthe axle Z moves in the direction of the arrow C until it arrives into a vertical position, the member 'u simultaneously being engaged by the awl to. The stop g3 'slides along the mem saine so that .the pawl 'w is heldby the end of the arm ai, and the lever g is prevented from being returned by the spring u into its normal position. Now when the arm e is brought inward, owing Ato the needle moving in the spiral groove of the record,

the axle Z and with-it themember 'v isrotated, and the set-screw-v finally strikes leased from the end ofthe pawl w and from and the axle Z is- `peciication of Letters Patent. l atent May 1910.

in the direction of the arrow B soV v er into an incision in the '110 against the shoulder m and the arm ai is re- When the the stop-g3. When the lever ismoved into y the position in which the axle Z is vertical,

' mal position, and the mechanism is ready for receiving another coin. Owing to the slanting position of the axle Z the aria e has been swung out and raised and is out of action.

It 1s to be understood that the releasing means shown in and described with reference to Fig. 2 for moving the axle Zinto the vertical position and-,allowing the same to return into a slanting position are shown merel by way of example and that various modi cations can be made withoutdeparting from, the spirit and scope of the inven-- tion. Butan essential feature of the con- 'struction according to the invention is that the slanting position of the axle carrying the sound-arm is operative in starting andstoiping the talking machine.

claim: 1. In 'a mechanism for talking machines,

lthe combination of a `sound-arm an axle carryin `the soundarm, said axle being ada te to stand in a slanting position when sai ,arm is in its extreme positions, and means for'placing said axle into vertical position, for the purpose specified.

' 2. In a mechanism for.l talking machines,

chasse the combination of a sound-arm an axle carrying the sound-arm, said axle being adapted to stand in a slanting posltionwhen said arm isin its extreme positions, driving mechanism, and releasing mechanism com-- prising a spring-pulled lever carryin said axle, and a wheel on the lever adapte 'to be driven by the driving mechanism, and to A carrying said axle, and a wheell eccentrically mounted on the lever and adapted-,to be driven by the driving mechanism of the talking machine, and to place said axle into vertical position; detent meansfor holding said axle 1n its vertical position; and means for releasing said detent means and returning the axle into its slantingposition.

z 4. In an automatic talking machine, the combination, with the sound-arm, of a-normally slanting axle carrying the same, and motor-actuated releasing mechanism carrying the axle for automatically placing'th'e same into verticalposition and returning it into a slanting position, for the 'purpose specified. l

The foregoing specification signed at Berlin, this 11th day of February, 1909.

CARL LINDSTRM.

In presence of- WoLDnMAn HAUPT, HENRY HASPER.

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