US767489A - Telephone support and switch. - Google Patents

Description

No. 767,489. PATENTBD AUG; '16,* 1904. F. R. MOBERTY.

TELEPHONE SUPPORT AND SWITCH., APPLIUMIOH HLBDDEOA, 1902.

No MODEL.

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IINTTED STATES Patented August 16,- 1904.

PATENT OFFICE.

FRANK R. MCBERTY, OF EVANSTON, ILLINOIS, ASSIGNOR TO WESTERN ELECTRIC COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

TELEPHONE SUPPORT AND SWITCH..

SPECIFICATION forming part of Letters Patent No. 767,489, dated August 16, 1904.

Application led December 1, 1902. Serial No. 133,524. l (No model.)

To all w/wm/ it 11m/y concern.-

Bo it known that I, FRANK R. INICBEETY, a citizen ofthe United States, residing' at Evanston, in thc county of Cook and State of Illinois, have invented a certain new and useful Improvement in Telephone Supports and Switches, of which the following is a full, clear, concise, and exact description.

My invention relates to a combined telephone-switch and transmitter-support, and has for its object to provide an improved structure which will be compact and convenient for use as a wall set.

My idea was primarily to construct a wall instrument which would be especially adapted for use in hotelexchanges or wherever a small, compact, and efficient instrument of this character is desired.

I will describe the invention particularly by reference to the accompanying drawings, and the features or combinations which I regard as novel will be set forth in the appended claims. n

Figure l is a side elevation of the bracket with the cover removed, the telephone-hook being also broken away for clearness. Fig. 2 is a sectional plan view on line 2 of Fig. l. Fig. 3 is a detail view of the end of the rocking shaft which carries the telephone-hook, illustrating' the actuating finger which operates the switch-contacts; and Fig. 4 is a detail sectional view on line 4 4: of Eig. l to show the stops which limit the rocking movement of the shaft.

The same letters of reference are used to indicate the same parts wherever they are shown.

The telephone-switch lever and contactstrips are mounted on a metal disk or back plate a, which is adapted to be screwed to the wall. A metal cover a is provided for this back plate and the telephone-transmitter may be mounted on the outside of the cover. The switch-hook is formed upon a forwardly-projecting right-angled extension of a horizontal actuating-shaft b, which is mounted to rockin bearings Z2' formed by lugs projecting from the back plate a. Lugs b2 b2, carried by the rocking shaft and projecting above and below thesame, serve as stops coming against the back plate to limit the rocking movement of the shaft. The opposite end of the shaft carries a forwardly-projecting finger c, which is adapted to actuate the switch-springs. A plate of insulating material e is mounted upon the back plate to the left of the center and below the shaft. The several switch-contact parts are mounted one above the other (suitably insulated by rubber strips) upon this insulating-plate and extend toward the right parallel to the rocking shaft b, the end of the main switch-spring f projecting into the path of the actuating-finger c, which is carried by said rocking shaft. When the receiver is on its switch-hook, the finger c forces the spring f out of engagement with its resting contact; but when the receiver is taken from its hook for use the tension of spring f causes the shaft b to rotate in a direction oppositeto that caused by the weight of the receiver, thus restoring the connection of spring f with its resting contact. of each contact-strip projects beyond the contact-strip next above it in the pile, so as to aiord suiiicient exposed surface to accommodate a binding-screw, to which the wires lead- The left-hand end ing into the switch may be attached. These several wires are led in through an insulatingbushing a2, held in a projecting lug at the bottom of the back plate, over which the cover a' is cut away to fit.

Two posts g g are shown rising from the back plate near the center thereof to support the cover a', which is adapted to be fastened in place thereon by screws g g passing into said posts. These screws may also serve to secure in place upon the outside of the cover a plate it, having projecting lugs 7L L, adapted to receive the transmitter, which may be pivotally fastened therein as usual. The cover spring normally rests. The switch thus operated may control the connection of the transmitter in the circuit.

By employingl a shaft of circular cross-section the transmission of motion through the shaft from the switch-hook to the switch is not accompanied by any displacement of the shaft relative to the cover through which it passes. This structure is of advantage in that it permits the cover to be made to fit the shaft closely, thus preventing the admission of dust within the incloscd space.

Having thus described my invention, I claim-- l. rl`he combination with the back plate, of an actuatingshaft extending horizontally across the front face of the back plate and arranged to roch in bearings supported thereby, said shaft having a right-angled extension on one end formed to hold a telephone-receiver, switch-contact strips mounted upon said back plate, and a finger carried by said rocking shaft at right angles to said telephone-receiver support in position to engage one of said contact-strips to move the same and change the contacts.

2. The combination with the back plate, ofa pile of contact-strips mounted upon said back plate one above the other, a telephone-hook and an actuating-finger moved thereby, arranged to engageone of said contact-strips to move the same, a cover fitting over the back plate, and a push-button loosely mounted in the cover in position to register With one of the contact-strips of the pile, to move the same, substantially as set forth.

3. The combination with the back plate (L, of a horizontal actuating-shaft extending across said back plate and mounted to roch in bearings supported thereby, a telephone-hook extending forward at right angles from the one end of said shaft, switch-contact strips supported by said back plate parallel to the shaft, an actuating finger carried by said shaft at right angles to said telephone-hook and arranged to actuate the switch-contacts as the shaft is rocked, and a cover for said back plate provided with lugs for supporting a tclcphone-transmitter.

4. The combination with the metal disk a forming a bach plate and having lugs east on the front thereof, of an actuating-shaft extending horizontally across the front of said dish and journaled to rock in said lugs, a telephone-hook extending forward at right angles from the left-hand end of said shaft, an insulating-plate mounted upon the front of the disk, contact-strips and their interposed insulating-strips mounted in a pile upon said insulating-plate parallel to the shaft, a projecting linger carried by the shaft arranged to actuate said contact-strips, a cover arranged to lit over the back plate and adapted to support a telephone-transmitter, and a Aright-angle extension on the end of saidshaft outside of the cover adapted to hold a telephone-receiver, stops carried by said shaft for limiting the movement of the same, and means made operative in the turning of said shaft for moving one of said contact-pieces to change the contacts.

6. In a telephone set the combination with an inclosing case, of switch-contact pieces mounted therein one above the other, a shaft extending' into said case and adapted to turn in bearings supported upon said case, a rightangle extension adapted to hold a telephonereceiver on the end of said shaft outside the case, and means within the case made operative in the turning of the shaft for moving one of the said contact-pieces to change the contacts.

7. rlhe combination with the back plate, of an actuating-shaft extending horizontally across the face thereof, lugs carried by said bach plate and forming bearings for said shaft, a telephone-hook extending forward at right angles from one end of said shaft, contact-strips supported by said back plate one above the other parallel to said shaft, and a finger carried by the shaft at right angles to said telephone-hook, adapted as the shaft is rocked to actuate said contact-strips.

8. The combination with the baclz plate, of an actuatingshaft extending horizontally across the face thereof, lugs carried by said back plate and forming bearings for said shaft, a telephone-hook extending forward at right angles from one end of said shaft, an insulating-block carried by said back plate, contact-strips mounted upon said insulatingblocl parallel to saidshaft, a finger c carried by the shaft adapted as the same is rocked to actuate said contact-strips, a projecting lug carried by said back plate, an insulatingbushing (t2 supgorted thereby, a cover for said back plate cut away to fit over said bushing, and lugs carried by said cover adapted to support a telephone-transmitter- 9. The combination with a metal bach plate, of a horizontal actuating-shaft extending across the face of said back plate and mounted to rock in bearings cast integrally therewith, a telephone-hook extending forward at right angles from one end of said shaft, lugs carried on either side of said shaft and limiting the movement thereof, an insulating-block carried by said back plate, a pile of contact- CSo IOO

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ling beyond the Contact-strip next above it in the pile, a binding-screw for such exposed end of each strip, a telephone-hook, and an actuating-finger moved thereby adapted to engage one of said contact-strips to move the same.

In Witness whereof I hereunto subscribe my name this 11th day of October, A. D. 1902.

FRANK R. MCBERTY.

Witnesses:

EDWIN H. SMYTHE, ADELL HooKETT.

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