US1294626A - Talking-machine. - Google Patents

Description

w. H. DAILY.

TALKING MACHINE.

APPLICATION FILED 8.18.1918.

nm 1 9 1 00 1 F d 6 L H W a P 11V I ZVTOR A llarncys WILLIAM H. DAILY, OF TUCSON, ARIZONA.

TALKING-MACHINE.

I Specification of Letters Patent.

Patented'Feb. 18, 1919.

Application filed February 18, 1918. Serial No. 217,891.

To all whom it may concern:

Be it known that I, WILLIAM H. DAILY, a citizen of the United States, and a resident of Tucson, in the county of Pima and State of Arizona, haveinvented certain new and useful Improvements in Talking-Machines and I- do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in talking machines and more particularly to means for stopping the'operation of the same when the end of the record shall have been reached by the needle,-the object of the invention being to provide simple and eflicient means which shall operate to stop the operation of the means which drives the turntable and at the same time arrest the rotation of the turntable.

With this and other objects in view, the invention consists in certain novel features of construction and combinations of parts as hereinafter set forth and pointed out in the claims.

In the accompanying drawings, Figure 1 is a sectional View, partly in elevation showing the application of my improvements. Fig. 2 is a plan view, and Fig. 3 is a view of a modification.

1 represents a suitable base, which may consist of the top portion of the casing of a graphophone or other talking machine, and over the same, the turntable or record carrier 2 is disposed and secured to a driving shaft 3. In the present instance, this shaft may be driven, (through the medium of suitable transmitting means, not shown) by means of an electric motor 4:. The stationary horn of the machine is indicated at 5, and the tone arm 6 is removably coupled with said horn through the medium of a vertical tube 7 and a cradle 8. The tone arm carries a suitable reproducer 9 at its free end, to cooperate with a record disk 10 mounted on the turntable. v

A bracket 11 is disposed over the base 1 and provided with an arm 12 pivotally connected at 13 .to said base, the free end of said arm where the head of the bracket is located, being supported in any one of several positions to which it may be adjusted, by means of a toothed plate 14 secured to the base 1, and the bracket is provided with a tooth 15 to engage plate.

An arm 16 is disposed in position to be engaged by the tone arm,said arm 16 be ing provided at its lower end with a hori zontal spindle 17 mounted in the bracket 11. At its free end, the spindle 17 carries a brake shoe 18 to engage the peripheral portion of the turntable, and between its ends, said spindle is provided with a pin 19 which is movable through a diagonal or cam-slot in the bracket'll. At the juncture of the arm 16 and spindle 17 a contact point 20 is provided to cooperate with a contact block 21 located on the base 1.

The electric motor 4 is connected in circuit with the contacts 20 and 21, one leading-in wire 23 being connected with the contact block 21 and the bracket 11 being connected, by means of a wire 24 with one terminal of the motor, while the other leading-in wire 25 is connected with the other terminal of the motor.

Under normal operative conditions, the arm16 assumes a vertical position so as to be so disposed that it will be engaged by the inner portion of the tone arm when the needle of the reproducer reaches the inner end of the record groove. By adjusting the bracket 11, the position of the arm 16 may be adjusted in accordance with a particular record, so that its engagement with the tone arm at the proper time (viz: when the inner end of the record groove has been reached) may be always insured.

When the needle of the reproducer has reached the inner end of the record groove and the tone arm has engaged the arm 16, the latter will be caused to fall to a horizontal or approximately horizontal position, thus causing a partial rotation of the spindle 17 and by the cooperation of the pin on said spindle with the cam slot in the bracket, said spindle will be caused to move longitudinally and apply the brake shoe to the periphery of the turntable to stop the rotation of the latter. Simultaneously with this operation of the arm 16 to apply the brake, the contact point 20 will move away from the contact block 21 and thus open the motor circuit to stop the application of power to the turntable.

Instead of the pin and slot construction for effecting longitudinal movement of the spindle 17 to efiect the application of the brake to the periphery of the turntable, the spindle may be provided at its inner end with a cam brake-shoe 26 which will be brought into engagement with the bottom of the turntable, when the spindle is turned by the dropping of the arm 16.

Various other slight changes might be made in the details of construction of my invention without departing from the spirit thereof or limiting its scope and hence I do not wish to restrict myself to the precise details herein set forth.

Having fully described my invention, what I claim as new and desire to secure by Letters-Patent, is:

1. In a talking machine, the combination with a turntable, an electric motor for driving the same, and a tone arm, of an arm normally disposed to be engaged by the tone arm and provided with a spindle carrying a brake shoe to engage the turntable, a fixed contact block, a contact point carried by said arm to normally engage said contact block, and an electric circuit including said contact block and contact point.

2. In a talking machine, the combination with a turntable, and a tone arm, of an adjustable bracket, an arm disposed to be engaged by the tone arm, a spindle rigid with Copies of this patent may be obtained for said arm, and a brake shoe carried by said spindle to engage the turntable.

3. In a talking machine, the combination with a turntable, and a tone arm, of a pivoted bracket, a spindle mounted in said bracket, an arm projecting from said spindle and normally disposed to be engaged by the tone arm, a brake shoe carried by said spindle, a toothed plate, and a tooth on said bracket to engage said toothed plate.

a. In a talking machine, the combination with a turntable, and a tone arm, of a bracket, a spindle mounted in said bracket and having a pin, said bracket having a cam slot to receive said pin, a brake shoe on one end of said spindle, and an arm rigid with said spindle and normally disposed to be engaged by the tone arm during the op eration of the machine.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

WILLIAM H. DAILY.

Witnesses:

W. W. Aroma, J. A. OULBERTSON.

five cents each, by addressing the Uommissioner of Patents,

Washington, D. C.

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