US378250A - Telephone-switch - Google Patents

Description

(No Model.)

J. R. H. HINTON.

TELEPHONE SWITCH.

Patented Feb. '21, 1888.

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JOSEPH. R. H. HINTON, OF BALTIMORE, MARYLAND.

' TELEPHONE SWiTGl-l.

EJPECE-FECATIOII forming part of Letters Patent No. 378,250, dated February 21, 1888.

Serial No. 240,119. (No model.)

T 0 aZZ whom, it may concern.-

Be it known that I, JOSEPH R. H. HrNToN, a citizen of the United States, residing at Balti1nore,in the State of Marylanthhavc invented new and useful Improvements in Telephone Switches, of which the following is a specification.

This invention relates to certain new and useful improvements in telephone-switches; and it consists, substantially, in such features of construction, arrangement, and combinations of parts as will hereinafter be more particularly described, and pointed out in the claims.

The object of the invention is to provide a switch of the character referred to which shall place the telephone in and out by the simple act of detaching it from its supporting-hook and again suspending it thereon, all as will hereinafter more fully appear when taken in connection with the accompanying drawings, whercin Figure 1 is a side elevation of a telephoneswitch embodying myimprovements,and Fig. 2-is a central vertical sectional view thereof. Fig. 3 is a vertical elevation taken from the rear of the switch, and Figs. 4 and 5 are views in detail to show the construction of certain parts.

Before proceeding with a more full descrip tion, I desire to state that I am aware that telephoneswitches have been heretofore i11- vented wherein the line and battery wires are brought in and out by the act of removing the telephone from and again placing it upon its supporting hook; but,so far as my knowledge on the subject extends, it is thought that the construction, arrangement, and combinations of parts herein resorted to are substantially different from anything heretofore patented.

Reference being had to the several parts by the letters marked thereon, A represents the front piece, having about centrally thereof a vertical slot or recess, a, and provided on its rear side, in proximity to said recess, with melength of the roller is formed a slot, d. The roller is also provided with a small metal shaft or spindle, c, by which it is supported in the bearings I) ll of the bearing-plate I).

0 represents the metallic supporting-hook for the telephone D, which is keyed, as at f, or otherwise secured to the shaft or spindle e, and is formed or provided with a projection or arm, 9, fitting in the slot (1 of the roller B. The said hook is formed with curved branches h h, between which the telephone D is slipped when attaching it to be supported. In the movement of these branches up and down ac cordingly as the telephone is removed or at taehed, they are guided, and the hook thus kept in place, by a grooved guiding-bracket, E, formed with or secured to the metal face plate A, secured to the front A and slotted corresponding to a for the movement of said hook.

F F and F F represent pairs of metallic springs secured, respectively, at one of their ends to the inner side of A, their opposing extremities being bent, as shown, by which the proper action will be had in operation. To the lower extremity of the springs F the bat tery-wires mare electrically connected, while to the upper extremity of the springs F the line-wires a are in like manner attached. When the telephone is in place on the bracket E, the contiguous ends of the springs F F will be in electrical contact with the arm g of the hook C, while the corresponding ends of the springs F F will be separated or apart and bear against opposite sides of the rib 0, formed with the roller, and thus be out of contact electrically. (See Fig. 1.) By the act of turning the hook O upward to remove the telephone the opposite ends of the springs F F will be separated, and the roller in being turned brings its rib c to such position as to allow the corresponding ends of the springs F F to come together and be in contact electrically. It will thus be seen that the usual signaling can be first had across the line and the telephone afterward employed in the usual manner.

From the foregoing description it will be seen that the parts will all act effectively to produce the results desired, and that they are so arranged together as to be always reliable in IOO action and'not apt to get out of order. By working in the groove Z of the bracket E the hook O is always guided and kept in proper position, and the movement of the roller in separating and contacting the springs exerts so small a degree of tension to the latter as that they are not apt to become distorted from their original and intended shapes.

Having thus described my invention, what I 0 of the insulating-roller B, formed or provided with rib c and groove (1, the hook 0, having arm 9, fitting said groove, and the springs F F and F F, bent, as shown, and having the 1 line and battery wires attached, all substantially as and for the purpose described.

4. In a telephone-switch, the combination, with the front piece, A, having slot a, and the bearing-plate I), attached to therear thereof,

of the roller B, supported by said bearingplate and having rib c and grooved, the hook 3 0, having arm fitting in said groove and extending through slot a, the springs F F and F F, bent at their opposing ends, as shown, and adapted to be brought in and out of contact electrically, and the bracket E, having a groove in which the curved branches h and h of the hook move in the act of detaching and suspending the telephone, substantially as described.

Intestimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

JOSEPH R. H. HINTON.

Witnesses:

CHAS. H. MILLER, LEE PURoELL.

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