US240182A - Annunciator for telegraph-lines - Google Patents

Description

(No Model.)

G. BEIN. Annunciator for Telegraph Lines. No. 240m Patented Aprii masa.

INVENTOR BY TTORNEYS.

UNITED STATES PATENT OFFICE.

GUSTAV Rem,- or OINCINNATL'OHIO.

nuuucm'ron-roe TELEGRAPH-LINES. I

SPECIFICATION forming part of Letters Patent No. 240,182, dated April 12, 1881.

' A bncanou W August a1, 1880. (No model.)

' .To all whom it may concern:

Be it known that I, GUSTAV REIN, of Oincinnati, in the county of Hamilton and State of Ohio, have invented a new and useful Improvement in Annnnciators for Telegraph- Lines, of which .the following is a specification.

In annunciators as heretofore constructed it is necessary to raise the drop by hand to restore it to the normal position after a signal has been received. This involves the risk of omission on the part. of the operator to raise the drop and the liability of injury to the instrument by inexpert operators.

The object of my invention is to provide for raising the drop automatically by the devices used for connecting'or breaking the lines, thus avoiding necessity of handling the drop and insuring its return to place. The further object is to prevent mistakes in connectingthe lines.

The invention consists in .a double wedgeslidefitted for movement by the plug that connects the lines, and acting upon the arm carrying the drop, so that the act of making or breaking connection raises the drop; also, in

changeable name-cards, combined with the annunciator, for showing the names at all times whether the drop is raised or not.

In the accompanying drawings, forming part of this specification, Figure 1 is. a perspective view of an annunciator containing myimprovements, and Fig. 2 is a vertical longitudinal --section of the same. Figs. 3 and 4 are detail views. V

Similar letters of reference indicate corresponding parts. v

A'is the base orstand of the instrument. a is a spring-plate attached, by one end, to an insulated support on stand, and carrying at 6 its outer end a grooved block, b, that rests upon a similarly-grooved block, 0, of non-conducting material. The grooves in blocks b 0 form an aperture for insertion of the plug d, that connects the line witha telephone or other 5 instrument.

e is a slide-rod sustained loosely in a staple,

I 7c, attached to the under side of plate a, and

fitted with a spiral spring, j, that tends to 4 force the pin-forward into the aperture be- '50 tween the blocks b c. The rod 6 is fitted with .on the lower portion of incline e3.

apin, g, that projects through a long slot in plate a, and is connected with a plate, h, resting on plate a, so that plate It and rod 6 shall move together. The plate h is fitted with inclined plates 5 0', extending lengthwise of plate a, and inclined in reverse directions. The sides of plate h are formed with bevel-projections h, and upon plate a are pins k, at opposite sides of plate h, (see Fig; 4,) which pins act, by contact with projections h, to give side movement to the plate h at each extreme of its lengthwise movement.

l is a castingattached to base A, sustaining the magnet m and carrying pivoted armature n.

o is the drop hung on casting l, and sustained by a projection on an arm, n, extending from. the armature.

p is a pin sustained loosely in a vertical position by the casting l, with its lower end resting on one incline of plate h, and taking at its upper end by a collar, 12', beneath drop 0.

With the plugd withdrawn and drop 0' raised the rod e is projected forward, and pin. it) rests When the drop falls by closure of the circuit to the magnet the operator will connect his instrument by insertion of plug d. This pushes back rod 0 and the incline iraises pin 1) and drop 0, and the latter is caught by arm n. The pin 1) drops again as soon as the incline '5 passes it, and at the same moment, the plate h being moved sidewise, the 'pin 10 will rest at the lower portion of the incline 'i, so that as the rod e moves forward when plug dis removed, pin 1) is again lifted and returned to its first positionafter passingincline '8'. This latter movement insures return of the drop 0 in case a signal is given while the plug 1 is inserted.

Upon the front of casting l is fitted a spring plate or frame, 1', adapted for holding a namecard, s that is covered by micato prevent injury to the card. The cards th'us show the name of subscribers plainly, and liability to mistakes in making connections is lessened. The cards can be readily removed and changed 5 as required. i

The annunciator above described is specially adapted for telephone-lines, and when used for that purpose it is desirable to have a'record made of the number of calls'made by each subzoo scriber. To accomplish this antomaticallyI combine with the annunciator the followingdescribed devices: On the under side of the casting l is pivoted a plate, t, the forward end of which projects in front of the casting and is fitted with a toothed'wheel, 3 on which are Eta, 2: 21 m ing with the number of teeth. The plate t is formed with a projection, t, at one side, and is provided with a spring, 10, that tends to move the plate to one side. On the front of casting [is hung a-pawl, v, engaging with wheel 3 The pin 9 from slide 0 extends upward in front of the projection t of plate t.

When plug 41 is inserted to move plate h back,

as before described, the plate t is moved sidewise by contact of pin g with. projection t, and wheel y being thus, moved toward the pawl, the wheel is turned one tooth. The parts are returned by spring w when plugd is withdrawn.

The wheel is thus turned 'every time a call is answered, and will thus indicatelthe number of calls.

Having thus described my invention, what 2 5 I claim as new, and desire to secure by Letters Patent, is-

1. 1n annunciators, the combination of pivard correspondoted plate t, toothed wheel'y, pawl v, and spring I 10, with sliding plate h, having pin 9, and fitted for movement by the circuit-closing plug d, substantially as and for the purposes set forth.

2. In an annunciator, the 'pawl'v and toothed wheel 3 having numerals corresponding to the teethfln combination withthe pivoted plate t, having projection t at one side, the spring 10, and the slide having pin 9, as and for the purposespecified.

3. The combination, with an annunciator, of a wed ge-shaped slide fitted for movement by the circuit-closingplug, and a slide-pin resting -on the wedge and extending beneath the drop,

substantially as shown and described, whereby the drop israised by the slide simultaneously with movement of the plug, as set forth.

4. In annunciators, the combination of plate h, having inclines 1' 1", spring slide-rod e, and vertical slide-pin p, together and with plate a, plug d, and drop 0, substantially as and for the purposes set forth.

, GUSTAV REIN.

' Witnesses: CARL KAMMEYER,

WM. MILLER.

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