US983817A - Electric-circuit-controlling means. - Google Patents

Description

0. J. POX 1 W. 0. 111111111. ELECTRIC CIRCUIT CONTROLLING MEANS.

' Patented Feb. 7,1911.

APPLICATION FILED JULY 9, 1910 ITY PATENTOFFICE.

orrhnnn's J. grox 4m) WILLIAM c, snnrmjor noomzsauaia; NEW YORK.

Specification of Letters Patent. I

. "nLncrme-omcmnconrnomme nexus. 7

Application filed July 9,1910. Seria1 No.'- 571, 177.

Todllwhom'it may concern:-

Be it known that, we, CHARLES J. Fox and WILLIAM GIGREIN, citizens of the United States, and residents of Rochester, in the county of Monroe and State of New York,

I have invented a new andImproved Electric Circuit-ControllingMeans, of which the following is a' specification. The object ofour invention isto provide means for controlling an electric circuit adapted to use in connection with switches,

such that the switch or other circuit closing.

means is rendered moperative'except to the proper arty or the party having the proper means or effecting the closure of the C11- cu1t. v v

In carrying out .our'invention we preferably combine with circuit closing means of ordinary construction, such as an insertible and removable plug for closing-the circuit between two contacts, a key actuated memher for obstructing or closing thepassa'ge or opening through or into which the circuit-closing means, for instance, the plug, is inserted, while at the same time this obstructing means when in its-inoperative position, permitting the' insertion of the plug, acts-to close the circuit at another point whereby when the key. operated member is moved to its 0 erative position to preventthe insertiono the plug the circuit is not only opened at the contactsbetween which I the plug may be inserted but it is also openedat another pointintroducing another element of safety. .'We also prefer to c0-' operativelycombine with the above mentioned features still another feature comprising a construction normally operating to lock the key actuated member against-41lovement by even the proper key until there has been inserted, in the proper opening there- ,for, preferably the circuit closing plug which thus operates to remove spring actu- {as to permit thesanle to operated bythe key.

lIn the accompanying drawings we have.

,shown an embodiment of our inventionas electric energy through'a'translating device,-

illustrated 'in the drawings as an electric adapted to close .the-circuitfromfa source of motor, without however, limiting ourselves to such or any special. embodiment of such I atente Feb. 7, 1911;

so I

actuated member in position to, prevent the insertion of the plug. Fig. 5 is asectional view taken along the line w g of'Figi 1 of the lower part of the device and-showls-the release the key actuated plug'inserted to member.

Similar reference similar parts throughout the several figures of the drawings.

- Beferring to the drawings,- B 'is the base piece having a downwardly extending flange I characters; designate 1) provided at the corners with bosses having inwardly threaded-holes '0 to receive screws by means of which the deviceis secured -to any desired structure, as asupport and be-' ing thus secured from the back side the base portion B is not readily removable to ren-. der the parts contained thereunder accessible.

. Contact members 8 ands, are secured in recesses b"b in the base piece B by means .of screws 6 from which wires 1 and 2 lead respectively to battery Z and to a spr ng contact u. A. plugp'having a handle P is provided for insertionflin the bushing C se-- cured within the base piece B. This plug'p, when inserte in lace, is adapted to engage the contacts 8 and s .to close the circuit between them. Secured tothe under side of the base member. B, by the flange 42, is seena lock- V which ma be of anysuitable construction," .preferab y,-"-'such as: adapted to operation by means of a fiat key "inserted in a rotatable escu'tcheon niembero and adapted to I up or; ownwithreference to F gs; 1 and 2. The bolt 1) is shown in its operative ;in Figs..1 and 2 'but, 'when actuate 1by:the f-key in the escuteheonmember vethe holt'D toand fro, that 1is,-'--

(position the opening atthebushingC'for receiving the plug'p. in'such away as to prevent vthe the bolt D may bethrown thereby to close insertion thereof. The'bolt -D when in its inoperative position is adapted to engage between two insulatingly supported spring contacts u and u, secured to the boss-b" to "close the-circuit between suchcontacts, while from the spring 14 a wire 3. leads to any de-' sired translating device such as illustrated diagrammaticallyi in th s case by the motor M, from which connection is made' to the-' battery Z by wire 4. 1

Secured on the under side .of the'bolt D are seentwo spring members'd held in place by-means of screws as indicated and each carrying a. pin' e normally engaging through a hole alined therewith in the body-of the belt I) and-into a hole a in the base member B sufliciently to prevent a longitudinal movement of the-bolt D by means ofthe key inserted inthe escutcheon member 1;.

The holes forreceiving the pins m tioned,'as indicated in Fig. to receivesueh pins when the bolt D .is-moved to its op-. erative position and extending over the opening for the plugp and therefore out-of en- "gagementwith the contacts u and 2& thus leaving the circuit open between such springs. The plug p carries on its lower end two pins p adapted, when inserted, 1n

the bushing C to engage the pins e andforce them downwardly out of engagement with the base member B, immediately upon ling device is as-follows,-supposing the- 40 which the bolt D may be moved to its in operative position, being that shown in 'Figs. 1 and 2.

I The method of using our circuit cont-rolparts to be-in-the positions shown in- Figs. 1 and 2-, the insertion of the key and the operation thereof moves the bolt D to its operative position preventing theinsertion of the plug p which, However has of course first been removed, and it also opens the circuit' between thecontacts u and a and at the same time the pinse engage'through the holes therefor-in the bolt D and into the holes a inalin Inent therewith'in the base member B pre enting the operation of the bolt'D even by means of the proper key.

' For. closing the circuit the plug member is inserted in the bushing C therefor, and 1t will be noticed, by reference to Fig. 3, that theholesc are so positioned as toreceive the 3 pins 2 only for one angular position of. the

-plug p whichfwhen thus pr'operlyinserted,

plug p toclos'ethe circuit between-the contacts s and s Theoperation;is'of'course reversed except asto the insertion of the plug in the bushing C} for operating the b olt to prevent an improper *closingof the C11CI1'1t., A; p

What we claim i-s:'

-' 1. In a devi'ceof thecharacter-describeu,

.a base;'two pair of insulatedjcontacts spaced .apart mounted on the base; a plug ada ted toengage through .an opening in the ase and between the contacts ofthe first pair to electrically connect, them; 'ap-ky actuated member movably mounted-onithe base and adapted in one position to extend over the opening-for the plug in the base to .prevent the insertion thereof and means whereby, when the key actuated member is moved to its other position, electrical connection is es- 'tablished between the second pair of contacts.

-2.;In a device of the character described,

a base; two pairofinsulatedcontacts spaced apart mounted. onthe base; a plug adapted to engage through anopening in the base and between the co'ntactsof 'the'first pair to electricallyv connect them;- a .key actuated member movably mounted on the base and. adapted, in one position to extend over the opening for the plu 'in the base to prevent the insertion thereof; means whereby,when the key actuated member is moved to its other position, electrical connection is estab- "lished between the second pair of contacts and a locking means for holding the key ae- .tuated member in such last named position adapted to be released by the plug in engagement therewith. I 3. Ina device of the character described,

"a base; two pair of insulated contacts spaced apart mounted on the base; a plug adapted to engage through an opening in the base and between thecontacts of the first pair to electrically connect them; akey actuated member movably mounted on the base and adaptedin one position to extend over the opening for the plug in the base nection is established between the second pair of contacts, su'chfirst and second pair of contacts located in series with each other in an electric circuit;

'110 to prevent the insertion thereof and means whereby, when the key actuated member ismoved to its other position, electrical con-' 4. In a device of the character described,

a base; two pair of insulated contacts spaced I l apart mounted on the base; a plug adapted 'to'engage through an opening in the base a and between the contacts of the first pair, to

electrically eonr'iectfithem; a key actuatedmembe'r movably-mounted-on the base and adapted in'one position to extend over'the openingfor the plug in the base to prevent the insertion thereof; means whereby, when of contacts located in series With each other the key actuated member 1s moved to 1ts In an electllc clrcult. other posltlon, electncal connectlon 1s estab- CHARLES J. Fox. hshed between the second pan of contacts 1 5 and a locking means for holding the key 210- TILLIAM GRLIN tuated member in such last named position Witnesses: adapted to be released by the plug in engage- MARTHA M; NELSON,

ment therewith, such first and second pair OSBORNE F. G'URNEY.

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