US680339A - Graphophone. - Google Patents

Description

No. 680,339. Patent ed Aug. 13, 1901.

T. H. MACDONALD.

GRAPHOPHONE.

(Application med Nov. 22, 1 897.

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194: "cams PETERS 9o. PNpTO-LIT No. 680,339. Patented Aug. l3, I90l. T. H.- MACDONALD.

GRAPHOPHONE.

(Application filed Nov. 22, 1897.)

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. have devised certain improvements in the arpinion 2,, gear j, and pinion k. to the shaft of 1 the latter, which passes through plate A" and carries on the opposite side thereof. a .spur- 5 gear l and a pulley F. The latter is connected by a belt G with a larger pulley H on the mandrel-shaft. Gear Z engages a pinion .with the accompanying drawings, in which- UNITED STATES P TENT FFICE.

THE AMERICAN GRAPHOPHONE COMPANY, OF WEST VIRGINIA.

GRAPHOPHONE.

SIfEOIFICA'IION forming part of Letters Patent No. 680,339, dated August 13, 1901. Application filed November 22,1897. Serial'll'o. 659,407. (Remodel) To all whom it mrtfly concern:

Beitknowntl1atI,THOMAS HMAcDoNALp, of Bridgeport, Connecticut, have invented new and useful Improvements in Graphophones; which improvements are fully set .forth in the-following specification.

The object of the present invention '-is to produce a graphophone which while capable of giving results as good as formerly in the reproduction of musical and othersound records shall yet be light, small, com pact, and of economical construction. To that end I rangements of the motor, feed mechanism, reproducer-carriage, and other parts which can be most conveniently explained in connection Figure 1 is a plan view of a graphophone and its driving mechanism constructed in-ac cordance with my invention. Fig. 2is a vertical cross-section and side elevation.

The frame of the machine consists, mainly, of three upright plates A A A all mounted on bed-plate B. Plates A A have forward projections, between which is a iube a, which constitutes a long bearing for the mandrelshaft, the mandrel 0 being unsupported at its other end. These plates also constitute the bearin gs for the spindles of the springmotor, whose gears are between said plates. The three plates are held together at the top by a front tie-rod b and a rear tie-rod b, which" rods also constitute the guides or ways upon whichthe reproducer-carriage slides, as will behereinafter described. About midway between these two rods is the feed-screw -D,, which is journaled in the end plates A A and passes loosely through the intermediate plate A. h

E represents the barrel of the'spring-motor. It carries a large gear 2, which drives a pin ion f. On the same shaft with the latter is a spur-gear g, which drives a pinion h on the feed-screw shaft. Motion is communicated from gear- 9 to the mandrelQ through the tie-rods b b.

m on the rotating sleeve of the friction-gov ernor, which is preferably of" the type described in my Patent No. 587,265, dated July 27; 1897.

Foroperating the cenarifugal governor as a brake, and alsoaspee ing speeds, a leverK is pivoted on a projec:

tionof plate A ,and'carries at'one enda leather stud 0, adapted to make contact with the rotatory friction-disk- L. The outer face of this lever K is incli ed somewhatoutwardly, away from the plate A, providing a slight cam-surface. An a'djusting screw M determines the normal poisition of, the lever. A11 arm N, pivoted at 'n to plate A and whose rear projection n bears on lever K, serves in one position to press stud 0 forcibly against disk L by means of the ca m-surface on lever K, and so arrestthe motor, andiu the other position to throw lever K into contact with adjusting-screw M. p P represents the carriage for the sound re- -regulator for varyproducer or recorder T, mounted to slide on It has a saddle formed of two curved plates 10 10 in which rests a horn Q, attached thereto by prolongations of one.

of these plates, as p, which constitute springclips (1 q, or by other suitable attaching or clamping means. Lugs 19 on horn Q, engage platep and keep the horn from slipping. The" hollow socketR, to which the recorder or reproducer is connected in the well-known way, is pivoted-by pin 1' directly in the small endof .the horn. Beneath carriage P and pivoted on rod b is a lever S, carrying a sectioniofa nut s, which normally engages feedscrewD', being pressed into engagement-there with by a light helical spring 8. Socket R has a bent metal plate 1*, the lower end of which is just above the end of -le ver S, the upper end 1 constituting'a finge piece. By

pressing on this'fi-nger-piece socket R is tilted on its pivot, thus raising the recorder (or reprodncer) from the tablet, and the same movementplate r depresses the' eiid of lever '8, thus lifting the nuts from eugagement with the feed-screw.

Having thus fully described my invention,

,what Igclaim as new,'and desire .to secure by Letters Patent, is

1. In agrapho'phone the combinationof a base, two upright plates secured thereto,a'

in otor-spring between said plates and-havi'n g its shaft journaled in said plates, a feed-screw journaled in one of said plates and in a third plate, a carriage actuated by said screw, a sound-conveyer supported by said carriage but removable therefrom, a recorder or reproducer supported by said sound-conveyer, a suitable gearing between the motor-shaft and the mandrel-shaft and between the motor-shaft and the feed-screw, substantially as v described.

2. In a graphophone, the comlrination' of a a by said carriage and'a recorder or reprodncer reproduccr loosely mounted in and supported by the small end 'of the born.

6. In a graphophone the combination with the feed-screw, of acarriag'e, a horn sup ported thereby, and a hollow socket for attachment of the recorder or reprodncer supported vin lhe'sniall end of said horn, substantially as described. 4

7 The combination with the feed-screw, of a-slidingcarriage adapted to'be driven by said feed-screw, a horn supported by said .carriage, and a hollow socket'swiveled inthe small end of said horn and provided with means for attachment of a recorder orreprodncer, substantially as described.

8, The combination with thecarriage, and means for'moving the same, of a saddle on said carriage, a'horn provided at its small end with a socket attachment for the recorder or reproducer, and means for attaching said horn to said saddle, substantially as described.

9. The combination with the feed-screw, of Q the carriage, the horn supported thereby, the nut for engagement with said screw movably supported by said carriage, the socket sW-iveled in the end of said horn, andconnections between the socket and nut,-whereby the tilting of'the former moves the latter into or out of engagement with the feed-screw, substantially-as described.

10. The combination with the feed-screw, of the carriage, the horn supported thereby, the nut for emgagging said screw, a lever pivoted on said carriage and connected with said .nut the socket swiveled in the end of said horn, and a platoon said socket engaging said lever, substantiallyas described.

11. In a talking-machine, thecombination with a motor and its train'of gears supported by and between two bearing-plates, of a feedscrew that propels the carriage for a recorder or reproducer,a governor located below the v said feed-screw, and a mandrel supported at one end from said bearingplates and located in front of said feed-screwand governor, the said feedscrew, governor, and. mandrel be ing so arranged relative to each other and to thedriving-gears, that motion is imparted to each of them from opposite sides of a com mon' driving-gear.

12. In a talking-machi ie, the combination of a recorderor reproducer supportedby a' sound-conveyor, said sonnd-conveyer being both supported and moved longitudinally by a carriage, and saidcarri'age in combination with a mandrel and means for revolving said mandrel While moy-i'ng said carriage longitudinally, substantially as described.

In testimonyfwhereof I have signed this specification inthe presence of two subscribing' witnesses. I THOMAS H. MACDONALD.

\Vitnesses:

WM. IRELAND STAN, A. P. KEOUGH.

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