US1181947A - Telephone. - Google Patents

Description

J. 0. CADlEU-X.

TELEPHONE.

APPLxcATloN min JULY 22.1915.

Patented May 2, 1916.

2 SHEES-SHEETZ.

iii si i Mimi Applcsaitmi iled uly 22, m15. Ecija) Nc.

To aZZ 'wimmmriy amicem:

' E@ itl known that JOSEYH fimisux, a citizen of the United. States; of Amerie@ residing :it Meriden, NGW Haven county, State of Connecticu, havia invented a, mw and useful Telephone., ui' Whisk iii@ ioiiowif-j ing is :i spciiczitiou.

This invention. i'eiafbes pafticuifiicly when, :ire known apai'imem; buns@ vasi bui@ teipiioneu.

lisirticuimf @bissig 0i the invention we mummia and. diminuta caitiiin c'iisfivm" iiiu'eiveii'or@ ign-umili in cia'vicas Si. 'ziiira ciiaimctai, and to provid@ u, teipiwne of ezxii'meiy siitfipie, iuexpeusiv@ sind 'tical censiiuciion.

@ne finzi-mf@ 0i ih@ invention amuiifiiiigiy consists im' mounting tim tmnsmitiiiig .amai receiving eieuumts 011 the back 0i? :i :fe-,sii plate and iii Cummunimicu with Lippi@ priuteiy 'placed transmitting and recii/iig openings .iu ysuch face "plate,- This dnas away with the usual projecting mout-h piea, sepsiiate iceiver .find corda ish@ Sensiiii'@ puits oi he instrument are whoiiy proteciii by the' im@ platev :imi the im@ piziii c@ inutil-ei ieaiure is iii@ mmmtiugf; olif caii ing s'wiaiies un iii@ bwk iii@ fait@ pia@ and providing; them 'with opemiiiig tons wposeii the fi'nt of h@ im@ pint@ for sei-ectiveij/ Caliing this diiieuen; Siri in.ents

The accompanying fiiawiugs iliusiufae tim invention miioiiiefi in a practical idoim, 'but it will be understood thai, vmious ciiazitigs und mofiiicaions may bu made without ii@- pa'i'iing from the trufa scopa' imi spirit of the iinvmitiom Figure l is :i front or face View @ii :i 1911011@ set embodying; tifa invii/miam is rear View ci' thefsum@ iii@ pmiecfiiw casing @mi the' megapiiom of die remiifif being;T Shown in sectifm; Fig. 3 is a veiticafi scctionzii. viewnii: the insgrurfieiit mimi sub-- stantiaiiy' mi the `piane, Of iiii@ iii-3 0i Fig, L Fig. i is a cross saciicnzii 'View 0i2 ha Stimm tiikiaii Gubsimiziaiijv on me pian@ of the 1in@ ,4.-4 oil? Fig. i. 5 a im grammatic iipieseumtioii of ghe iiustiumeiiiz and ai iaypicui wiring pian for ih@ same.

Tim face. plate which wristtuie@ iii@ main body and. support igor ibii various'instiuiizin aiiiius is designated. $.01. This muy be and preferably a. piaiii Hush pieu@ @it siiuei; met-ii which may," be sii'iw'' und mici@ Mid., ami. a. i be aim.....aly' i to fiii o* bis Suppo-i wd i 1' bar and the third terminal 42 being as indicated in Fig. i electrically connected tothe bus bar by its securing screws 43. A sheet of insulation 44 may be placed between the terminals and the calling switches beneath the same to prevent the binding Screws 45 of the terminals from accidentally making contact with any of the calling switches.

The wiring on the back of the face plate is illustrated in Figs. 2 and v3, where 50 indicates the connection from the transmitter to one terminal of the receiver, 51 indicates another connection from the other terminalx of the iieceiver to the line terminal 40, and 52 indicates a connection from the other terminal of the transmitter to the line terminal 4,1. t

The parts are all properly insulated, and as an additional safeguard, a sheet of insulation 55 preferably extends the full length on the back of theface plate. This forms an insulating base for all the parts on the back of the face plate, and it may be conveniently secured in place by means of eyelets 56 inserted through the push button openings and serving as guides for the push buttons. y

To protect the parts from dust, etc., 'a boX or casing 60 is preferably provided inclosing all the parts on the back of the face plate .and conveniently secured in place by screws G1 engaged with the face plate. This casing may be provided with a suitable opening or openings G2 for the various exterior circuit Wires.

In installing the instrument the terminal 40 (marked T) is connectedwith a line wire extending to the telephone sets of the different apartments, as indicated in Fig. 5. The terminal 41 (marked B) is connected with a talking battery and by a line 71 with the other terminalsy of the different apartment telephone sets. The terminal 4t2 (marked R) iS connected with a ringing battery 72, which in turn is connected with the line wire 71. The bell of the telephone set in apartment number l is connected by conductor 73 with the terminal of the nurnbcr 1 calling switch on the back of the face plate and the call bell of the telephone Set in apartment number 2 is similarly con nected by conductor 74: with the number 2 calling switch 011 the back of the face plate. In operation, it will be evident that upon the pressure ot the number 1 button, ringing currentl will be sent from battery 72 through the bus bar, the number 1 calling switch, conductor 73, the bell T5 and receiver switch 76 of the number 1 apartment set and back through conductor Tl to the other side of the battery. lifted off the hook at the number l apartnient, the talking circuit will be completed and conversation can then be carried on between the vestibule telephone set and the number 1 apartment set. In this case the circuit will be from talking battery 70 through the transmitter and receiver of the vestibule set and by way of conductor 65 to the receiver 77 and transmitter 78 of the number 1 apartment, and by way of the common return 71 back `to the other side of the battery. The circuits for the number 2 apartment and as many otherapartlnents as there may be, will be similar to those de scribed.I as will be readily understood.

From the foregoing, it will be seen that the telephone set constructed in accordance with my invention, is extremely simple and practical, and being devoid of projecting and exposed or separate parts, is extremely` well suited to use in apartment house vestibules. where great loss has heretofore been occasioned b v the breakage and theft of the When the receiver is exposed portions of the usual telephone set.

lVhat l claim is:

1. A flush telephone set comprising a. face plate provided with transmitting and receiving openings, a non-protruding transmitter secured to the back of said face plate in communication with the transmitting opening therein, a bus bar mounted on the back of said face plate, a plurality of calling buttons mounted on the face plate electrically connected with said bus bar and operable at the front of the face plate and a'non-protruding receiver secured to the back of the face plate and provided with a tllroat piece communicating with the receivi'ngopening in the face plate whereby said parts are protected by the face plate and said face plate forms a ush face piece for the transmitter and receiver devoid of projecting telephone parts.

2. A flush telephone set comprising a face plate provided with a transmitting opening surrounded 'by a rearwardly projecting bushing, a transmitter engaged with and supported on said bushing, a receiver pro vided with a megaphone throat piece and means detachably securing said throat piece to the back of the. face plate, said face plate having a receiving opening therein in line with said throat piece.

3. A flush telephone set comprising a face plate provided with a transmitting opening and with a substantially annular receiving opening, a receiver provided with a megaphone throat piece surrounding and inclosmeneer in seid annuler receiving opening, a conice delector Within the throat piece with its heise inside the inner periphery of the ennular receiving opening, and :i transmitter at the beck of the face plate in communication with the aforesaid transmitting opening.

4. A ilush telephone set comprising a. fece plate providedwith a transmitting opening and with e substantially annular receiving opening, :i receiver provided with a. megaphone throet piece surrounding and inclosing said annuler receiving opening and et conical deleetor Within the thront piece with its base inside the inner periphery of the annular receiving opening.

5. A Hush. ltelephone set comprising u face plate provided with a. transmitting opening e receiivirw opening and `push button oper ings, e ismitter supported on the beck of said ieee plate 'with its mouth in communicution wi'ththe transmitting opening,

n receiver supported on the back of the face plate provided with a throat piece in communication with the receiving opening and calling switches supported :on the back of the fece plate provided with operating louttons projecting forwardly through the push button openings in the face plete.

6. A. flush telephone set comprising e face plete provided with a transmitting opening, e receiving opening and a series of push button openings, e transmitter secured to the back of sind face plete with the mouth thereof in communication with the trans- -mitting opening, a receiver secured to the :termina-ls supported on the bus bar in the pleine of the contact fingers but insulated therefrom, and push buttons seated in the push button openings in the face plate and engaging the laterally projecting contact lingers for forcing said fingers into engagement With the line terminals.

JOSEPH O. CADIEUX.

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