US1536296A - Jack for wireless telephony or the like - Google Patents

Description

May'ES, 1925. 1,536,295

J. W. JONES JACK FOR WIRELESS TELEPHONY OR THE LIKE V Filed Aug, 11, 1922 Patented May 5, 1925..

:i'osErH w. Jonas, or NEW YORK, n- Y.

JAorc non WIRELESS TELEPHONY on THE LIKE.

application filed August 11, 1922. Serial No. 581,135.

To all 'wnom it may concern.

.Be it known that I, Josnrir Jonas, citizen of the United States, resldlng n the v city, county, and State of New York, have it invented anew and useful Jack for Wireless "Telephony or the like, of which the following is a-specification.

This invention is designed primarily for service in wireless-telephone apparatus, but

is also applicable in switchboards of ordinary telephony and, indeed, in any service involving ready establishment and dis-estah lishmeint of one or more electric circuits. In the telephone-jacks heretofore known, the

jack comprises an angular metal plate upon whose rearward prolongation is mounted, with suitable insulation, a plurality of for wardly extending parallel contact-spring: arranged in close proximity and parall with the rearwardly-extending telephone plug (when inserted). 'lh close proximity of these elongated parallel oontact-springs, however, results in capacity for induction of local circuits, particularly manifest in wireless telephony; the soldering-of the circuit-wires to the rear ends of said contactsprings requires the service of skilled perts; and the jack-structure as a whole is unduly large and cumbersome.

lhe object of the present invention is to provide an improved telephone-jack that will be free from local induction, to which the circuit-wires can be readily connected by even an amateur, and which will occupy a far shallower space than the former jacks. To' this end, the invention comprises broadly a jack with its contact-spring or springs projecting rearwardly, in the same direction as the plug (when inserted). In such arrangement the contactsprings can be and preferably are far shorter, and spaced more widely apart, than heretofore; and thereby their capacity for local induction is eliminated, the circuit-wires can he structure is much shallower and does not usurp so much space in the wirelessa iparatus (or telephone-switchhoar-d)-with which it is associated. The invention comprises further the various features of construction and ar- .',1'angeinent hereinafter set forth a mi elai mud.

,The invention will be best. uuderstoml by "reference to the ensuing description and the accompanying drawings, which set forth sevria ral illustrative cmhodimei'its thereof. In

drawings:

ion-sheet.

readily connected thereto, and the whole Fig. 1 represents in transverse section one preferred embodiment of the invention, designed for employment with a single normally-opencircuit, and shown as equipped with binding-posts for the circuit-wires;

Fig. II is a like View of a slight modification, which, instead of binding-posts, has simple terminals for soldering the circuit wires;

Fig. III is a transverse section of another embodiment designed for a single normally-closed circuit;

Fig. 1V is a similar View, and Fig. V a face-view, of stillanother emliodil'nent for two circuits; and

Fig. VI. indicates, in perspective, a plurality of jacks mounted upon a ui'iitary or common base-plate and its unitary insula Referring first to Fig. I, 7 represents a metal base-plate, shown as flat, and having a screw-thread-d hole into which. is to be screwed a tubular bushing 8, whereby said base-plate may be secured against the inner face of a wall or panel 9 (shown in dotted hues),- ready for the insertion through said bushing of the usual or any desired form terminals, here shown as a short bindingpost, which is secured at the rear face of the insulation-sheet, as by avscrew 13 inserted through the base-plate. 14 is the complemontary jack-terminal or binding-post, secured directly to the rear face of said insulation-sheet, as by a screw 15 inserted thrmigh a clearance-hole 16 in the base-plate. 17 is a single rearwardly-projccting contactspring, flat and preferably quite short, which is suitably secured in electric contact with said second jack-terminal 14, as by being clamped between the foot of said terminal 14 and the rear face of said insulation-shcot by said. screw 15. Along its rearwardly-extending portion, at 18, said contact-spririg is so shaped or distorted as to project laterally into position for electric contact with the usual contact-ball 19 car- Stfia iitlEtlly iii-shaped. flat spring-member,

} l'0 .Z'-llli:,' quite is no: egzln he reur lace oi the in flon sheet l) :11; by a, screw ineerleiil through 21 erunre hole iii 21ml held in place by :r nut. a rn'i 17 of said member projerts and is (lislorlecl r0 extend into ihe plug while the olher end is "ie ll for 50L 'l'he other merely ol :1 sliorli iltl(l, in L- :J'lriu Qonizurt Willi 213 by 1:. screw i ziinl D1215 eijl Willi w. hole or the like wife. are two remwrua'allytnel-sprin v two binning 1 y, and having:

o-"uevl lo couFi'ii i'lj. i ihen liie releinilimlofl in Fig. (l co; LZH'lIillQ-LIHES 01+ into rho (irhone {or other ,a are earriexl by u n lairought inn-i inuiunl ssln'evn, the four ronnrl lhe 233 and l'he "-zcuroil re- Spring; Contact me nu plate, dflil Che oiher iwo rings .curesl unon rho llifinnlllflll" e ninelioles, well as;

ihe r 2: willyllio lour mu Iii along ll ,7 in nlzi 1: no. li'hon lorri s:

'lhmahy ihe plug l'he rein emu hrezihin ll;

iiof iuv 'l'he plug will nl'her ii whose lerinir rim h :i new i .pring s i l'elrpliono (or are 0:11 llll which a sheeli oi insuluiion which lies flush in :1 rabbcl. or runes in lhe rear face of :i llllll'illy melal plate which lnlter provided with ii plurality of holes 30 for the lliSmllOn (from the front) of n. lele illone-plug or plugs. To said insulation is SCllllQLl (as by screws lhrougli clcaranreholos in the metal plate, as already ("m ni-well) u pluriilit. y' of terminals Ill one for each hole; earl! of said terminals cm or conslil Hills :1 short rear- \\'zii.'(llyin'0 wring (similar to nionihei' ll) whil for each iernnnzil 3i, there )8 seoureil (ill'LLLlf/ to the crn'nnon metal lmseplnte n roinpleinentury ierniimil here shown as like terminal 12 oi l 'ig. ll, hnrervr, binding-post such as shown in i;;. I, might he Oll'llilOyBl; and for one 01. nioie of the h les, there may be two or more conflict-springs (as indicated by Figs. Hi V) rioue embodiments of the invention lhus been described in great fullness of derail, hut only for the sake of clezirnoss, once the invention is not limited to any liitinn, one of said sprin s being in electric:

r1 ronneweion with said hose-plate, and the other l'hreo heng secured through clearzincn-liolers th rein cl rectiy in said insulation the flat rc i .rclly-projecling portions of snirl springs occupying 'I'QSPOClZlVCly lanes rrl l, 001 iiilvule suhsl'ln ntially a, square, the rear cm of lwo of enid springs having latezil pro Htions bent into parallelism. with and nnlencling as inner ends hetween the (ruler rear ends of tho olher two springs, 21 strip oi. insulation limited on the inner face oi ne of the two l; Eh lllC'llilCTlCll or oulvr nioinhers. will l'\\1 inner einls living f whim-l. .rilh lll'll ollier uinl each 05 1' inn ouinr ends being in electric (*oul'avt will: ihe mljm-eut inner owl. and will outer eiuls lining sepziruhle lnrthor apart for lirenhine' the 'i ronuu'ls :i'l'oresnill lo." the insertion oli lhe t0lephone-plug, WllOlBlfiY the instrinnen't, such as :i lelephono whose terminals are curried by mid plug is i1il;i( {lUCBCl into :i new circuit; comprising the two outer ends aforesaid.

2. The herein l0scriheal lelephone-j: roniprising ii liner-plate, an irrsulatiorrs {our renrwzirzllyqirojecting C(iiifiziebSg i'iiigi, of which only one is mounted in oleetru-zil Inn like

. with said ha connection with said base-plate, while the other three are n'iounted on said insulation" sheet, the rear ends of said four springs being arranged in mutual parallelism, two oi said rear ends projecting as inner ends between. the other two as outer ends, each inner end being normally in electric contact with the adjacent outer end, and said two contacts being separable loy the introduction between said outer members of the telephoneplug, and thereby the instrument each as a telephone Whose terminals are carried by said plug being simultaneously introduced into a new circuit comprising said. two outer ends. i

3. The herein-described telephone-jack, comprising a hose-plate, an insolationeshect, four rearwardlyproiecting contact-springs, of which only one is mounted in electrical connection with aid lease-plate, While the other three are Jon-tit on said. insulation sheet, the rear cut said four springs be ing parallel, two of said rear ends project ing as inner ends between the other two as outer ends, the two inner'ends lacing out or contact with each other, but each inner end being'normahy in electric contact with the adjacent outer one l. A; tfillpllf and plane ha. screwihrcaded a flat metal 'ing a L t and plans sheet oar lace there- 'ing with the first menticned hole, a heated and enternally-threaded llow hashing engaging said screw-this hole in the haseplate for clamping latter upon a panel, a jack-terminal n'cd, electric contact late and projecting rear- Wardly beyond id in: ilation-sheet, a second jack--terininel connected through a clearance space in said haseplate to the rear face of said insulation'sheet, and a rear- Wardly-projecting contact-spring electritally connected at the rear face of said insulation-sheet to said second terminal.

5. A telephone-geek comprismg a baseplate of metal having a screw-threaded hole, a sheet of insulation secured on the rear face thereof and having a hole registering; with the firsbmentioned hole, a headed and externally-threaded hollow bushing engaging" said screw-threaded hole in the lNlSO-Pliiiifi tor clamping the latter upon a panel, two complementary jack-terminals, one mounted in electric contact with said base-plate and the other mounted upon said i nsulation-sheet, and a rearwardly-projeoting contact-spring eleetricallyconnected at the rear face of said insulation-sheet to said second terminal.

' of insulation secured on the rear face thereof and having a hole registering with the first-named hole, a headed and externally threaded hollow bushing engaging said serew-thrcaded hole in the hose-plate ior clan'iping the latter upon a panel, two complementary jack-terminals, at least one of them i'nounted upon the rear face of said lIlSultltlOll-SllGQll, and .a rearwai'dly-projecting contact-springelectrically connected at the rear face of said insulation-sheet to the last-mentioned terminal.

T. A jack comprising a base-plate of metal having a hole, a sheet of insulation secured on the rear face thereof and 1 wing it hole registering with the i'irst-nan'ied hole means comprising an eizternally-tlireaded hollow bushing engaging said plate con-- centrically With said hole for clamping said base-plate upon a panel, two colnpleinentary jack-terminals, at least one of them mounted upon the rear face of said insulationshect, and a rearwanlly-projcoting contactsp ing electrically connected at the rear of said insulationsheet {at the lastmen tioned terminal.

8. A demountaole makeand-break attachment, comprising a metal plate having a hole therethrongh, a sheet of insulation secured thereto and having a hole ll r ing with the first-named hole, a ollow sleeve projecting from said holes and. adapt-- ed to he inserted through a hole in a panelhoard, means upon said sleeve for clamping the above-named parts i said panel-hoard, and two coin 'ilementary jack-terminals carried respectively by said metal plate and said sheet of insulation.

9. The herein-described iwilt-structure, comprising a unitary metal plate provided of a telephone-plug, a sheet of insulation covering a portion of the surface of said plate, a jack-terminal and. a rearwardly projecting contact-spring secured at the rear surface of said insulation, one for each of said holes, and a complementary jackterminal secured in electric contact to the rear face of said metal plate.

10. A telephone-jack comprising a flat metal baselate having a sheet of insulation secured to the rear face thereof, the two being provided with a hole for the in sertion of the telephone-plug, four short and flat contact-springs locatedsubstantially ninety degrees apart at the rear face of said insulation, one of said springs being in electric connection with said base-plate, and the other three being secured directly to said insulation and out of electric contact with said base-plate, the lat rearwardlyprojecting portions oi. said springs occupying respectively planes which constitute suhstantially a square, the rear ends of two of saidsprings having lateral projections bent into parallelism with and extending as inner ends between the outer rear ends of in in, the 3 51301 m z secured on the mar face th zr aa'vmg :1, hole reglsii any; nth the hoie. a headed and QA'tm'naL 1 a lad .nuflow Bushing engaging ;sa1d

.23 hfle in the base pl'ide "for 8.1: 122M331" upon a panel, a jack- ,mtw in else-taxis conaiact with and projecting rozuwx ardiy xmrshei-t, a second $010k;

ante-Uri w said insuin- .ui m". eiectnc Contact with 51 1, and. :1 rensrwaidly-pro i-

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