US1177455A - Telephone. - Google Patents

Description

H-THOMPSON.

TELEPHDNE. APPLICATION FILED JULY 18. 191

1,177,455; PatentedMar. 28,1916.

' 2 SHEETSSHEET I. v

mam r55.

UNITED STATES PATENT OFFICE? THOMPSON, ornarnmnsono, SOUTH iuoivaenm, ONTARIO, oamma.

TELEPHONE.

This invention relates to telephones, and

more particularly to an attachment for what is commonly known as party line telephones,

such as are used in rural districts, wherein all of the telephones are operatively connected, so that the parties on each and every station may listen to the conversation between any two stations should they so desire.

The primary object of this invention is the provision of'a signaling attachment for connection with the various telephones, which signalmg attachment will immediately, upon the moving of the telephone receiver from the supporting hook, sound the designating signalof the telephone from which the receiver is removed, thereby acquainting the parties who aretalking upon the. line that such and such apersonhas taken down their receiver for the purpose of listening to the conversation.

A further object of the invention is to provide a means by which the downward movement of the signaling plate may be retarded, thereby insuring the proper timing of the signals.

Still another object of the invention is to provide a device by means of which the forcing of the signaling plate is prevented. I

A further and more specific object of the invention is to provide a device to prevent a.

person from operating the telephone ringer until after the signal has been given.

With the foregoing and other objects in view this invention consists 1n such novel features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated inthe accompanying drawings and clalmed'. In describing the inventn 1n detailreference will be had to the accompanying drawings wherein like characters of reference Specification of Letters Patent.

Patented Mar. 28, 1916.

designate like or corresponding parts throughout the several views, wl11ch:-

and in .Figure l is a sectional view through the 7 ordinary type of partytelephone as specified showing the improved attachment applied thereto. Fig. 2 is a fragmentary view of. a part of the signaling attachment for the telephone. Fig. 3 is a cross sectional view on line 33 'of Fig. 1. Fig. 4 is a detail view in elevation showing a part of the signaling mechanism in an operated position.

Fig. 5 is a fragmentary view of a part of I the construction of the invention showing the telephone locking member, and Fig. 6 1s a detail view of the pivoted plate and support therefor.

Referring more particularly to the drawings, 1 designates a telephone of the type which is commonly used on party lines in rural districts, which telephone embodies the bell-ringing lever 2, the receiver 3, the re ceiver supporting hook 4, the gear 5 and pinions 6, for operating the telephone sig naling mechanism, and other features of construction such as are commonly found in telephones of this nature.

The telephone has a leaf spring 7, which leaf spring engages the lower surface of the receiver supporting hook 4, and it is normally held under tension by. the receiver 3 when the same is mounted upon the hook 4,

so that immediately upon the removal of the receiver from the hook the spring 7 will force the hook upwardly, as is ordinary in the construction of telephones of this nature.

The casing 8 in which the telephone is mounted, has an auxiliary casing 9, mounted thereupon, which auxiliary casing has the slgnahng mechamsm, which w1ll be heremafter more fully described, mounted therein.

The receiver supporting hook 4 has'a bar 10 secured to the. end 11 'thereof, which projects out of the telephone casing 8 and the bar 10 is-pivotally connected as at 12 to a rocker arm 14, which is pivotally mounted on a pin 15. The pin 15 is supported by tal flange 17 formed along its lower edge at to form a rest to support the plate :is pivotally mounted within the a partition 16, which partition is mounted within the casing '9. The rock arm is. of a novel form having an angular horlzonresent the number of rings by which the casing 9 and it willbelseen that when the rockarm 14 moves into the position shown in Fig. 4 the plate 18 will be free to move downwardly under the influence of itsown weight. It will be-noted that the manual movement of the rock' arm 14 will have no effect in forcing theplate 18 to move downwardly at an increased speed and it will thus be seen that the dash pot which will be more fully hereinafter described will insure the propertiming ofthe signals. The I 19 connected thereto, which bar is in turn connected to the plate 18 has a bar piston rod 20 of a dash pot 21. The dash pot 21 is'supported upon the rear face of the partition 16 by a strap 22, which extendsnbout the dash pot "and binds the same in engagement with the surface of the partition 16. The piston (not shown) of the dash pot 21 retards the downward pivotal movement of the plate 18; so that the timing of the signals will be uniform throughout the operation of the-device.

. Theforward edge 23 of the plate 18 is arcuate and provided with a plurality of notches or indentations 24. The notches or indentations 24: are spaced along the length. of the arcuat'e edge23 of the plate 18, so that the distance between the notches adjacent eachother, will be such that they reptelephone to which the lever'lO is connected is designated, For example: in case the telephone" 1 is known by. two short, two long and a short, the notches 2i will be spaced so as to formtwo short spaces, adjacent each other, two long spaces adjacent each other, and ashort space positioned upon the opposite end of the'side23 from the first two short spaces, or as is clearly shown in the drawings. a

. The partition 16 has pivotally mounted thereupon two levers 25 and 26, the levers I beingpivoted so that the terminals of their ment of the lever 25.

longer ends will engage upon rocking move- The lever 25 has its forward short end 27 bent upwardly or subj 7 stantially at right angles to the lever and the upwardly bent end 27 is provided for .en-

gagement with the arcuate marginal edge 23.01? the pivoted plate 18.

The levers25 and 26 are pivotally mounted upon pins 28 and 29 respectively, which pins have communication through flexible electric conductors 30 with the opposite poles of an annunciator 31 through a battery circuit so that when the terminals of the long lends ofthe levers are in-engagement with each-other th 3B11u11ClatOI' 3l will be operated for sounding a signal.

The.-casing.8 has a bracket mounted 1 therein in which bracket is-slidably seated a rod 34. The rod 34 extends vertically through the bracket 33 and into the interior of the auxiliary casing-9, being guided in its movement within the casing 9 by a strap 35, which strap is secured to the partition 16, or the casing 9 as desired.

-Tl1e-r0d 34 has an arm 36 secured. thereto a thumb screw'36',

adjacent its upper end and movable and adjustable by means of which rod is provided for engagement by one end of the lever 37.; The lever37is pivotally mounted within the casing 9 and extends transversely thereacross, being held in an upward opposite-position by an elasend which is adjacent the arm 36 upwardly and moving the rod 34 upwardly within its plvotal point-of thelever, from the arm 36 downwardly, forcing the.

bearings and out of "engagement with the peripheral teeth ofithe gear 5, which is mounted in the telephone box 8 as has been heretofore described, thereby permitting of the operating of the gear and the tele-,

phone 1. v

In the operation of the improved signaling attachment for telephones; when the receiver 3 is removed from the receiver hook 4, thebar 10 will be operated by the upward movement of the receiver hook Which-will in turn operate the rockarm 14: causing the.

flange 17 formed thereon to move out of a 1 supporting position with relation to the piv otal plate 18, and permitting the plate to move downwardly within the auxiliary cas ing 9.

lever 25, the lever 25, will be operated upon its pivotal point and moved so that it will engage the. lever 26, closing a circuit between the two poles of the annunciator 31. The

Upon the downward movement of, the pivotal plate 18, the'marginal edge 23 thereofwill engage the upturned end 27 of the lever 25, and upon the engagement of the arcuate edge 23 with the end 27 of the 1 notches 24 which are formed in the arcuate edge 23 of the plate 18 will release the lever 25 and cause the same to move out of engagement with the lever 26, thereby breakin the circuit, so that the entire movement 0? the plate 18 downwardly will sound the siganal which designates the telephone to which the attachment is connected. 7 The plate 18 in reaching thelloweinterminus of its pivotal movement, which. is reg: ulated by the operation of the piston 20 within the cylinder 21, will cause the angled end of the arm 411:0 engage the lever-37,

"therod 34 in a vertical manner so as to permit the rotation of the gear, 5 and the operationQof the telephone in the ordinary.

manner. I

From the foregoing description taken m connection with the accompanyiiig drawings the advantages ofthe construction and of the method of operation. of the improved telephone attachment will be readily apparent to those skilled in the art to which this invention 'app'ertains and while in the foregoing descriptiom'the principle of the operation of this invention has been described together withvarious features of construction, it- -is to 'be understood that certain minor features of construction, combination and arrangementof: parts'may be altered,

to suit practical conditions provided such alterations are comprehended within the scope of whatis claimed.

What is claimed is 1. The combination with a telephone having areceiver hook, and-a receiver on said hook, of a signaling means comprising a casing, a signal plate mounted withinthe casing, a rocker arm-mounted on the same pivot with the signal plate, means connectmg the rocker arm with the receiver hook whereby upon removing the receiver from the receiver hook, the rocker arm will be moved upwardly, thereby allowing the signail plate to move downwardLymeans to retard the movement of the signal plate to insure the proper timing ofv .the signal,

means to prevent the ringing mechanism of the telephonefrom being operated during the movement of the signal arm, thereby avoiding the confusing of signals, and

means to allow the ringer to be operated after the signal has been, given.

2.5111 combination with a telephone having a casing, a receiver hook pivoted within the casing and a receiver on the hook of a second casing, a'rocker arm pivoted the second casing, a rod connectin theouter end of the rockerarmwith the rec end of the receiver hook, a signal plate pivoted on the pivot of the rocker arm, a' flange on the rocker arm normally holding the signal plate elevated, signaling means actuated upon the downward movement of the signal plate, means to retard the downward movement of the signal plate, to insure the proper timing of the signal, a ringer for the telephone, and a stop adapted to hold the ringer against movement until the signal has been given over the line.

In testimony whereof I aflix my signature in presence of two witnesses.

HARRY THOMPSON. Witnesses:

J. ABBOTT, W. T. OOD.

Images