US946418A - Combination switch and lightning-arrester. - Google Patents

Description

s w. WOOD &, E. T. THOMA.

COMBINATION SWITCH AND LIGHTNING ARRESTER. APPLICATION FILED MAY 25, 1909.

946,418. Patented Jan. 11,1910. v ZSHEETS-SHEET 1.

F "a" f 1 WITNESSES [NVENTORS S. W. WOOD & E. T. THOMA. v COMBINATION SWITCH AND LIGHTNING ARRESTER.

Patented Jan. 11, 1910.

2 SHEETS-SHEET 2.

APPLIOATION FILED MAY 25, 1909.

W1 TNESSES I To an whom it may concern:

SAMUEL w. woop AND EDWIN r.

THOMA, on. LOOKEBA, oKLAfio us,

ooiuisxnatrion .swrrcrr aim LIGHTNING-ARRES'IER. V

Specification of Letters Patent, Patentedflainl 11-, 1910.

Application filed May 25, 1909 Serial 498,341.

Be it known that we, SAMUEL XV. VVoon and EDWIN T. Triomn, citizens of the United States, residing at Lookeba, in the county f Caddo and State of Oklahoma, have inv ventedcertain newv and useful Improvements in Combination Switches and Lightning-Arresters; and we do hereby declare the following to be a. full, clear; and exact description of the invention, such as will enable others skilled in the art to' which it appertains to make and use the same.

()ur invention relates to new and usefulimprovements in combination switch and lightning arresters and more particularly to that class adapted to be used in connection withtelephon'e or telegraph instruments and our ob ect-ist-oprovide meanj'sfor' preventing the instrument from becoming injured by lightning,

A further object is to provide means for operating a switch for disconnecting the main wire from the telephone.

A further object is'to provide carbons and bridge the current around said carbons and a further object is to convey the current passing through the carbonsto the ground and a still further object is to provide carbons between the bridged circuit and the ground wire.

' Other objects and advantages will be hereinafter referred to and more particularly pointed out in the claims.

Inthe accompanying drawings forming part of this application, Figure 1 is a plan view of our improved lightning arrester, showing a double switch and telephone connection. Fig. 2 is an edge elevation thereof showing the cover thereof in section. Fig.

3 is an elevation of a single switch and phone.connection, and, Fig. .4 isanedge elevation thereof. E;

Referring to the drawings in whlch sum-1, lar reference numerals designate corresponding parts throughout the several views, 1

indicates a base, which is preferably constructed of slate, porcelain or similar nonconducting substance and to said base are attached posts 2 and 3, said posts being preflerably placed adjacent the opposite edges of the base, the upper ends of said postsbeing bifurcated to receive switch levers 4 and 5, respectively, said levers being pivotally se-, cured to the posts.

The levers 4 and 5 are connected together adjacent one of their ends by means of a.

bridge plate 6-, wl1ereby an electric current may pass from one lever to the other through the bridge plate, while immediately between the -posts2and 3 are placed a plurality of carbon blocks 7, said blocks being held in position on the base by attaching to -the posts 2 and 3, spring plates 8 and 9, respectively, which engage channels 10 in the outer faces of the outer blocks 7 and direct inwardpressure thereon, the tension ofthe spring plates being such as to" securely hold the blocks in place.

The meeting faces of theblocks 7 hre preferably corrugated to increase the resistance thereof and between the plates are locatedinsulating strips 1]., whic strips, however are very thin andfbetween the twocentral blocks 'i'ssfiured 'oneend {of I a be r 12, while to p theopposi-te .end offs'aid v bar, is'-.-a ttached a ground'wire13, whereby anycurrentpassing through the carbon blocks and the bar 12 will be conducted directito. the round.-

The ends of the lever 4 engaging the-plate 6 are adapted to engage spring jacks 14: and 15, when said ends are moved inwardly and to these sprin jacks are attached sprin fingers 16 and'l I respectively, between Whi are introduced one end offuses 18 and 19, respectively, the opposite ends "of said fuses being likewise introduced between spring fingers 20 and 21, respectively on posts 22 and 23, respectively, and to theseposts are attached phone W1res,2t and 25. The opposite ends-of the levers i and 5 arealso adapted to engage spring jacks 26 and 27,

respectively, when said ends are moved inwardly, the operation'of moving said ends into engagement with the jacks. 26 and 27 disengaging the opposite ends of the levers from the jacks 14 and 15 and by providing thefjacks 26 and 27 with extensions 28 and 29, respectively, tliecurrent'will be conveyed from the levers-through the jacks and into the ground wire 13."

Positioned between the extensionsv28 and T the lower end of the bar 12 are auxiliary carbon blocks,30, which are held in position b means of spring'fingers3l, which are ariihiged in' pairs on opposite sides of the bar 12., the meeting faces of the auxiliary blocks bein likewise corrugated and separated by insufiitingstrips 32 and by this means the current in the levers 4 and 5 will be held against passing into the ground wire 13 when the volta e is normal, but should the volts e become ainormal, it will pass through t e 35 wireattachedto saidconductor bar and an wire; It will likewise be seen that :the tele phones will'bo fullyprot ted hour-injury and ground wiregit will be-ircadily seen;

n'ected flOlnfthQt8lCi)l1Q11' Wl16S they will act as a return for-what is commonly known as sneak currents in view ofl'he auxiliz'lrvcarbon blocks between the levers and ground from excess voltage by :discon necting -the M device of'vthe class describedythe mombination withtelephone -wires'.'and line wires}, of a'nonconducting base, a-lever pii j; otcd "adj'ace'ntjto itslongitudinal center, pivot-{ jacks engngcdl'ri' the ends of saidIlever,ad-- acks, one junta osed 'with.

relation to one of the first referre ito;s'p ring,- jacks; fuse between. the l last referred -to levers from the telephone wires orby 'pro-' Yldlng the fuses as shown and it will l kewise be seen that thep'arts'of the device are protected from injury froln'the el\jccss"\ ol tageby providing the ground ,WHTO. and the resistance as shown. lhat--\ \"e elann 152: 4

supporting means for saidjlever, springditional spr ng spring cks rand the telephone "wires, a

' ln'idge i1 ien1b'er,'1nean s efi'ecting connectionbetween said bridge inen'iberand' said lever, carbon blocks interpiosedbetwecn said 'tele-' phone wires and line wiresfa -condu ctor bar' conn'ected to -sa1dcarbon blocks, aground auxiliary; carbon block arranged between said leverfand, the ground wire.

2. A device 'ofthe class described, comprising telephone wires and line. wires, ta 'nonoonducting base, levers-piv0ted adjacent their'longltudinal centers, posts secured to i said base and forming supports for the piv ots of said levcr,- s pring-jacks' at each end of said levers,f additional spring-jacks one j 11xtaposed with relation to thefirst referred to spring j'aclzs, fuses between the last referred to springacks andthe telephone wires, a

bridge member'effecting connection between said levers, carbon members interposedabea tween said telephone wires andfsaid .line

,-wires,' 21 conduetor bar connected tofsaid carbon"blocks',""5 ound w re-comectdto said conductor bar; and auxiliary blocks ar- 'wire. a A device oftlieUclaS'S' desc ed comcent to' their longitudinal-centers to. said posts, spring-jacksrat the ends of said levers,

'fivire attached Tto said conddctor barfan '1 ling the circuit.-

jacks, 'f uses between theilast {referred to plates, a- 'bridge member-effecting connection thin insulatingfstrips interposedbetween. said "auxiliaryr oarbon blocks, said carbon contact with sa'id strips.

AMUEL w; woes.- f

4 ranged betwen 'said leverswidths-ground '55' that the breaking-10f the circuit of the line r and telephone wires will. not; interfielfe with or interruptthe circuit in tlie line or other; telephones on the -line. and it willflikewis'e' be" seen that when the levers arejdiscon :prising l-ine'avires-and telephone 'Wiresfa l b"ase member,.posts' secured to 'sa'1d base member for said wl're's', levers pivoted -ad a-'- '60 a (l d '.ti oi1a1 spring-j acks, "one j uxta'pqged with l' l H011 to h filf neferreditospringj aeks,'.- and fuses betweenthelastreierred tqsp ih' 5 jack-s and the telephonejwireg abridg memg' carbon blocks interposed between said tele- I phone wires 2111(lz11116 w res, a conductor barf i connect.ec l' to .saidcarbon blocks, a. ground 7 0 auxiliary, carbon fblo'k fian angedn between I said levers and said ground-w1re,--andmeans"- engagementof'saidleversfwi th the jfirst re-' famed-to spring-jacks -igrmalnngandbreak- 4i A device f thef-cha racter described,

comprising-teleph one wires and line wires; a =nonc'onduct1ng base, p'osts secured to "sa d-8Q) 1-tudinal-centers;- upon said post's, spin '-'jaeks-'engaged at the ends of said levers,a ditional springjacks; one'juxtaposed-with relation to {one of'the-first}referredtospringgB5 v spring-j aoks'. and theftelephonewires, spring-'3,

between said levers; carbon blocks interposed. f .betiinaen said 1 spring-plates and, said "levers, .a conductor bar connected to certain of" said carbon block's,'-.thin"insulatingstrips inter; posed between said "carbon blocks, a ground wire. attached to said conductor bar; auxiL'; T ia'ry carbon-blocks arrangedbetween said-" levers and saidconductor bar, addition'alf:

'- blocks tal so' hav jg f ig u fi ces of .v 1 109 lntestimony whereof weeha've signed our .J" -EDWINT. THOMA Fmn'cns M.

Images