US842983A - Talking-machine. - Google Patents

Description

- 0. THOMAS.

- 'I;ALKING MACHINE.

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- PATENTEQ TTPEM, 190?. I

CHARLES THOMAS, OF NEWTON ABBOT. ENGLAND.

-, TALKING-MACHINE.

Specification of Letters Patent.

Patented Feb. 5, 1907.

Application filed May 14,1906 Serial 110.316.5348.

' record-cylinders.

A further object is to provide a simple detachable means for the aforesaid purpose, such means being practically necessary parts of an ordinary gramophone, but particularly constructed or fashioned to suit the convertible machine, and thus avoiding an increase in g the sale price of talking-machines.

I obtainthis object by the means illustrated in the accompanying drawings, in which all the figures are shown in perspective, and the following is a short statement of the same: Figure 1 shows a gramophone provided with a detachable supportingarm and pivoted bracket for the horn. Fig. 2 shows the same apparatus disposed for use as a phonograph. Fig. 3 shows the mandrel. Fig. 4 shows'the detachable arm. Fig. 5 shows a fixed base-plate for said arm.v Fig. 6 shows the pivoted bracket.

Similar letters refer to similar parts throughout the several views.

are of ordinary construction, while the disk 6 represents an ordinary gramophonerecord..

The turn-table c is formed with an external central hole which is tapped to receive the stem of a mandrel d, and thus combine the lat ter direct with the turn-table and drive both in a definite manner-by the ordinary clockwork and without other intervening gear.

The horn e is of ordinary form, with its flexible union f and sound-box g. The horn is supported near its trumpet end or flaring mouth in such a manner as to allow it to travel with equal facility over the flat surface of a disk and along the peripheral surface of a cylindrical record, it being merely necessary to stand the apparatus. either upright .or on its side, according to its use as a gramophone or a phonograph, respectively. 1

The support for the horn consists of three distinct partsviz., a detachable arm 72,, formed with a base plate 1' and a socket j The base-plate can be firmly seated in a boxplate is, having for this purpose undercut guide-ledges Z, and which plate is firmly fixed to the case a by screws or the like. The socket at the free end of the arm his formed with a central hole adapted to receive the stem m of a bow-shaped holder n, which serves as a swivel for the horn, which is retained in said support by means of centeringpins 0 fixed in the bow-shaped. arms of the support and entering appropriate: indentations in the sides of the horn.

I wish it to be understood that I donot claim, broadly, a convertible gramophone and phonograph talking-machine, as such combinations are known; but

What I do claim as my invention, and de-.

sire to secure by Letters Patent of the United States, is

In a convertible gramophone and phonograph the combination with the mandreldirectly attached to the turn-table, of a horn supporting arm, a box-plate for said arm The case a and mclosed drivmg mechanism fixed to" the case of the machine, a swiveling bow-holder secured to the arm, a horn secured in said holder, a flexible union at the end of the horn and a sound-box with reproducer secured in said union, as and for the

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