US570204A - Adjustable telephone-transmitter - Google Patents

Description

(No Model v AJGARTNER. Y

- ADJUSTABLE TELEPHONE TRANSMITTER. N0. 570,204.

Patented Oct. 27, 1896.

- WITNESSES: 7 INVENTOR M3. QM. W

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I UNITED STATES PATENT OFFICE.

ALFRED GARTNER, OF NEWARK, NEW JERSEY, ASSIGNOR TO ROBERT BAKER AND JOHN FILMER, OF BROOKLYN, AND EDGAR L. RYDER,

OF SING SING, NEW YORK.

ADJUSTABLE TELEPHONE-TRANSMITTER.

SPECIFICATION forming part of Letters Patent No. 570,204, dated October 1896.

Application filed February 15, 1896. Serial No. 57 9,410. (No model.)

T0 at whom it may concern.-

Be it known that LALFRED GARTNER, a citizen of the United States, residing in Newark, Essex county, and State of New Jersey, have invented certain new and useful Improvements in Adjustable Telephone Transmitters; and I do hereby declare the following to be a full, clear, and exact description of the invent-ion, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

The object of my invention is to provide a telescopic support for a telephone-transmitter, so that the latter can be moved to any desired height or swung to any desired position, to thus clear the top of the battery-box usually found in telephone-services and used as a desk when messages are to be Writtendown.

The invention consists in the improved telescopic telephone-transmitter support, and in the combination and arrangement of the various parts thereof, substantially as will be hereinafter more fully described, and finally embodied in the claim.

Referring to the accompanying drawings, in which like letters of reference indicate corresponding parts in the two views, Figure 1 is a front elevation of an ordinary telephone-service provided with my improvement, and Fig. 2 a side elevation thereof. 7 i

In said drawings, a represents the frame on which are mounted the battery-box a and the magneto-box a on which latter the telephone-receiver is removably arranged, all as clearly shown and of the usual and well-known construction. On the frame a is also arranged the bracket 1), provided with a bearing-surface c, on which are pivotally secured, by means of the headed pin or screw 61, the arms or levers e and f. To the outer ends of said arms is pivotally secured a skeleton A, consisting of a series of sets of crossing arms e f, 6 f e f and 6 f pivotally connected at their centers and also at their outer ends. The free ends of the arms 6 and f are pivotally secured to the back of the telephonetransmitter g by means of a pin or screw g or in any desired manner. The said transmitter is arranged at right angles to the skeleton A and is connected by flexible wires h with the binding-posts 2', arranged in and connected with the telephone-circuit in the usual manner. By this arrangement the telephonetransmitter 9 can be moved to any height desired, as the skeleton A, on account of its peculiar construction, is collapsible and extensible, and can be swung sidewise into any position, as the skeleton carrying-arms e and f are pivotally secured on the bearing-surface c of the bracket 6.

In the rear of the skeleton A and secured to the bracket 1) is a downwardly-extending rod k, adapted to be engaged by an eye'or loop, arranged horizontally and secured to or made integral with the pin or screw g. When said loop is in engagement with and adapted to slide on said rod, the telephone-transmitter is limited to an up-and-down movement, as will be manifest.

The length of the rod is smaller than the length of the skeleton when fully'extended, so that the eye or loop (of screw g) can be withdrawn from the said rod, and the transmitter moved to either side and into any position required.

I do not intend to limit myself to the precise construction shown and described, as various alterations can be made without changing the scope of my invention; but

What I claim as new is In a telephone-service the combination with the frame, of a bracket projecting from said frame, a telescopic skeleton pivotallysecured to said bracket and consisting of a series of sets of crossing arms, pivotally connected at their centers and at their outer ends, the telephone-transmitter arranged at the free end of and at right angles to said skeleton, a loop or eye projecting from said transmitter, and a rod secured to the bracket and adapted to engage said loop or eye, substantially as and for the purposes described.

In testimony that I claim the foregoing I have hereunto set my hand this 8th day of February, 1896.

ALFRED GARTNER. Witnesses DUNCAN M. ROBERTSON, F. T. LooKwooD.

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