US953558A - Cut-out. - Google Patents

Description

J. L. SMITH.

CUT-OUT.

APPLICATION FILED JULY 31. 1909.

Patented Mar. 29, 1910.

@uuvwboa a New 1 4,

UNITED STATESPATENT OFFICE.

JAMES LLsMxrii, or aLvoan, TEXAS,

To u ll' wh'om concern:

Be itiknowii"that I, JAMESL.) SMITH, a I citizen of the United States, residing at Alvoi-ch 'in the county of Wise and State of Texas, have "inveut d new and useful I1'n'-, provenients in Cut Outs, of which the following is aspecification.

I fhe'invention relates to animprovement iiifcut-out's, designed'primarily for use on grounded telephone circuits, and particularly serviceabl ein providing a means arranged for manual operation to cut out the apparatus and line within the dwelling inthe event of lightning or other electrical disturbance.

' The main'object of the present invention 'is v the provision of a cut-out constructed for manual operation, in which, at the will of the u s'e'rfth'e telephone main outside the dwelling may be put to an auxiliary ground [and atthe' same: tiinethe line within the dwelling may "be put directly to the main ground by; operation in one direction, the opposing operation cutting in the telephone maintothe service line within the dwelling.

"The invention will be described in the following specification, reference being had particularly to the accompanying drawings, in which 3 Figure l is a .side elevation of the improved cut-out. Fig. 2 is a frontelevation of thesame. a v

v Referring particularly to the accompanying drawings, the improved cut-out includes an insulated base 1 of porcelain or the like designedto'besecured to any appropriate fixture, preferably on the outside ofthe buil'ding'to be protected.

Secured on 'the'base at an appropriate point' 'isfa post"' 2 in which'is mounted the main'switch lever 3. The switch lever 3 includes a' forked end 4' comprising spaced switch blades fiend 6, the main length of the lever projecting from the forked end being "onnected to an operatingrod 7 through the medium of an" insulated strip S. The rod 7 'is'designe'd to project through an opening.

in "the side of the building and is provided at its innerend" ivithin the building with a knobor handle9;'whereby the rod may be, conveniently;reciprocated" and .the lever 3 operated onr' its fulcrum to raise or lower the 'switcl'ifblades '5 and "6.

fie-binding post .10 projects from the base beyond: the free';"en ds. of the switch blades never: in engagement with binding Q, t hefuppe i' endof the postbeing" our-our.

, Specification of Letters IlE'atent. Patented lvIal'. 29, 1910. Application filed July 31, 1909. Serial No. 510,643.

divided to provide ears between which is pivotally mounted a contactlever 11. outer end of the lever is connected through the medium of a strip section 12 with an insulated bar 13, the forward end of which is connected to a metallic section 14 secured on the pivotal point of the switch lever 3, a brace section 15 projecting from theouter end of the section 14 to the lever 3 in advance of its pivotal connection to maintain the desired fixed relation between the section 14 and the lever 3.

By the construction described it will be obvious that a movement of the operating rod at in either direction will cause a relatively opposite movement of the free ends of the respective levers 3 and 11, so that as the free end of the switch lever moves down the free end of the contact lever will move up, and vice versa,

v Secured upon the base 1 isa binding post 16 carrying switch points 17 of the'sprin type with which the switch blade 5 of the lever 3 is designed to engage. A second binding post 18 is secured upon the base carrying switch points 19 of the spring type,v

the lever 3 and the free end of the contact lever engage the respective points described only when the contact ends of said lever are in lowered position, and as such contactends are oppositely movable it is, of course, obviousthat the switch blades of the lever 3 The The post 18 and 'the operative end of the lever 11 are the respective switch points at the same time; is also provided beyond the post tion to the posts ,16 and-18 with another between lever3is designed to enga ge. The points 22 are, therefore,

in opposition to the points "'17 and 19,' so that when the switch "lever is points it is dis- Y engaged with one set of engaged from the other.

A metallic plate 23 is secured on the base through the==medium of the post/16, and a 'second -plate.24 is secured upon the base through the medium of the post 2 These plates are arranged in line and their proxi- The base, 1 e 2 with .relapost 21, "carrying 'sprin points'22 which the main lengtho the -switchas a storm,

- the contact lever 11 .apart, one or both an excess current,

;1. In .this operation contact circuit the current passing over the 19 and the free end the main. length mate edges are spaced a slight distance of-said proximate edges being serrated or roughened, as at 25, to provide the. usual series of points. The plates '23'and 24 form the escape path for as will be later described.

The arrangement of the cut-out in the circuit is as follows: The tele hone main 26 from the central to the dwelling is connected to the binding post 16. Theconductor 27 leading from the cut-out to the apparatus within .the house is connected to the binding post 19. The main ground from the apparatus leads to the binding post 10 through a conductor 28, and from said binding post through a conductor 29 to the ground. An

30 leads from the binding post'21 to the ground. When the telephonel'circuit is in use the operating rod 7 1s moved so as to arrange the connected end of the switch lever at its limit from the base and 6 en ge the points17 and 19, while the ever 11 is disengaged from the points 19. and 20. The telephone is then in conductor 26, points 17, blades 5 and 6, oints 19, conductor 27 to the apparatus, con uctor 28, post 10, conductor 29 to the ground.

In the event of an electrical disturbance,

in which it is necessary to protect the ,apparatus and wiring within the dwelling, the rod -7 is drawn upon so that the connected end of the switch lever 15 moved to its inward limit toward the base 1. Under these conditions the main length of the lever engages the oints 22, the blades 5 and 6 are disengaged rom the points 17 and of the contact lever -11 is engaged between the points 19 and 20.

An excess current passing over the main 26 'wil then'pass through the plates 23 and 24;, of the lever 3, the points 22 and'the grounded conductor 30. In this connection it is to be also noted that in the pxeration of the lever to cut out the teleone apparatus from the telephone main operates to establish a ound from the binding post 18 so that if y any possibility the excess current should bridge the space between the binding posts 16 and 18 it will still find its way to ground without materially influencing the telephone apparatus.

' The device is of simple construction, requires no attention on the part of the operator and may be quickly installed in any grounded circuit carrying apparatus which it is designed to protect. The metallic parts are, of course, of any material having a good conductivity while the insulated parts may be constructed of any usual or preferred insulation.

I claim: 1. A cut-out including a base, switch the switch blades 5 relation, an

points secured upon the base and inconnection with the main conductor, additional switch points mounted upon the b'ase and in connection with the service conductor,a postmounted upon the base and in connection with the main ground, a switch lever arranged for manual operation and adapted in one position to engage and bridge the switch points in the main conductor and service conductor, and a contact lever operated by the switch lever to establish electrical connection between the service conductor switch points and the post in the main ground conductor. I

. 2. A cut-out including a base, a main ground conductor, switch points secured upon the base and in connection with the main conductor, additional switch points mounted upon the base and in connection with the service conductor, a post mounted upon the base and in connection with the main ground, a switch lever arranged for manual operation and adapted in one position to engage and bridge the switchpoints in the main conductor and service conductor, and a contact lever operated by the switch lever to establish electrical connection between the service conductor switch points and the post in the main ground conductor, alined plates connecting the main conductor switch points and the switch lever, said plates havin their proximate ends in spaced an auxiliary ground conductor adapted to be in electrical connection with the switch lever when the latter is in position to break the connection between the main conductor and service conductor switch points.'

3. A cut-out including a base, a main conductor terminal secured thereon, a service conductor terminal secured thereon, a main ground point secured thereon, an auxiliary ground terminal secured thereon, a switch ever pivotally mounted on the base and carrying blades to engage the main conductor and service conductor and electrically brid e the space between them, and a contact lever carried by theniain ground post and operatedwith and'reversely in relation to the switch lever, said contact lever being pivotally 'mounted on the main ound conductor post and engagin when in operative position the service con uctor terminal, the switch lever in inoperative position engaging the auxiliary ground conductor terminal, and an electrical path between the switch leverand main conductor terminal.

4. A cut out including a base,.main conductor switch-points secured thereon, service conductor switch points secured thereon, a lever 80st secured thereon, spaced plates arrange ductor points and the lever post, a switch' lever ivotally mounted in the post, blades carri by said lever to'-=.engage-the main in alinement between the main conelectrical(connection with. the main ground lever pivotally mounted in the post, blades conductor and service conductor switch pomts'when the lever 1s in one position, aground post mounted on the base and 1n conductor, a contact lever 'pivotally mounted on the ground post, and a, connection between the contact lever and switch lever, whereby the free end of the contact lever andthe blades are reversely operated in. the movement of the switch lever,-said contact lever in operative position being designed to engage the service conductor switch points. v

A cut out including at base, Il'liill'l COiiiductor switch points secured thereon, serv? ice conductorswitch points secured thereon,

a lever post secured thereon, spaced plates arranged in elmenient between the mem con ductorpoints and the lever. post, a switch carried by said lever to engage the'niaih in presence of te conductor and service conductor switch points when the lever is in one position, a

ground post mounted on the base and in electrical connection with the mainground conductor, a contact iever pix-'otallymountcd on the ground post, and 2 connection between the contact lever and switch lever, whereby the free end of the contact lever and the blades are reversely operated in the movement of the switch lever, said contact lever in operative position being designed to engage the service conductor switch points, and auxiliary ground switch points secured on the base, the switch lever being designed to engage said :iliary ground switch points when the 'wh lever is in inoperative position. In testimony of I efilx my signature iesses. -JLMES L. SMITH. v WVitnesses:

JQ B. FARMER, C. F. OTOOLE,

Images