US1594923A - Electric switch - Google Patents

Description

'ifi'xq a 192s.

- 1,594,923 c; L. BROWN I ELECTRIC SWITCH- Filed May 13, 1925 iwm l invention relates @to electric switches fnitieslofitheitype employed to automaticallywim fterrupt high voltagescircuits and-is particue larly adapted for use "in high :voltage, trans mission lines incident to the distribution tof current f QI'TlOII IGStIQUS Q i uralgcorrmm It; will be i understood; however, i that 1 my mprovedtswitchisin no Way limitedto use in connection witlifi high 1 voltage V circuits incident to the distribution ofcurrent in i rural communities, but on the contrary can be used with facility in any locality or under any conditions} where high; voltage current is 1 transformed into lowwoltagecurrent; e ofl my invention to pro- 1e general type referred will effectivelyprotect the transformers and i permit removal andlreplacementof the fuse ,blade from and tojthe-switch by inexperienced: persons without danger; which will be 1 substantially ffool proof and which will be exceeding y {simple in construction and inexpenslve to produce.

"invention, the scope whereof isset forth in Figure 1 isadperspective-view showing my improved usualsupp'ortsp 1 Figurefl2, a View partly in section and partly in elevation of what Tis shown in, Figure lfwith thefusefbladeof the switch detached-and carried bya ispeciallyde signed stick;

switch: suspended from the fuse blade removal and replacement Figure3,a side viewoffthe switch; Figure 4, a

1 Figuregfand 1 v ,1 Figure 5, a detail perspective View of one" v Beferringjgtothedrawingsmy improved, ,QSWltC h is shown jas comprising ,a bar 10 secured transversely {of 1 cross arms 11-11 supported from ja v suitable line pole (not shown).'; Garriedgby the bar 10 are spaced a team Pa t- 3Ma ya' table m e i lillustrate sectiononvi'the line4 {l of; e w

jblade, theoperator by pushing upwardlycan nsulatorsfrom each of which de- Applicetioufiled May 13; 19 5. semi No. 30,015.

Securedto each post 13 is a depending i it 1,594,923- PAT NT- OF CE. j

as in inite, gusts; assrslvo'it To amen ame ities Corr ABILENfiJKANSAS, a CORPORATION or KANSAS. i

metallic contact member 14 which termiition 15 opening upwardly with respect to i the insulator-Band post13. y y

My improved switch isfcompleted by a fuse" blade A bridging the contact members 14 and having its, end portions detachably engaged in the formations 15 i as will 'be apparent. In detail the fuse blade A comprises an elongated insulating body portion 16, which, for the sake of cheapness {and durability it when subjected to rough usage,

,1 preferably form of suitable wood. Ex

tending longitudinallythrough the portion each end 'through one side of said portion 16 as at -18. Secured against the sideof the 'portion16, through which. the passage- 17 opens laterally are metallic contact plates nates atits lower end in a hook-shape forma- '10 16 is apassage- 17 which-opens"laterallyat 19 whi'ch arew disposed just above respective lateral openings 18 and project respectively beyond the ends of the portionx16 for direct detachable engagement in the hook-shaped formations 15; The plates 19 are electrically connected by a fusewire 20, which extends through the ings 18.

To provide for passage 17 and lateral open the easy and safe removal and to the hook formations 15,1 secure and replacement of the fuse blade. A from y centrally of the body portion 16 a depending insulator A pin-21 having the usual threads 22. When it is desired to remove the fuse blade A the operator employs aremoval and replacement stick indicated generally in Figing the handle23 in the proper direction can screw theinsulato-r 25 on the pin and thus secure the stick to the fuse blade. When the; stick is thus secured to theffuse easily and with perfectsafety effect detach ment of the fuse blade from the formations l5andthen-lower said blade for the purposes desired. 1 The manner of replacingthe blade through themedium o-f the stick B will be obvious, it being noted in this con- 'nection that the hook-shaped formations 15 render the pro-per replacement of the blade exceedingly lsimple and certain in that it ure 2 at B. Thisstick embodies a suitable effect its detachment from either formation is only necessary for the operator to position the contactplate 1'9 '3' ust above the mouths of respective formations and then pull downwardly 0n the stick B. v In this operation the application of excessive downward pull on the stick'c'a'n in no way result in a faulty assembly between the blade and tions 15 that when the fuse b-lade A is applied to the switch allv possibility of .the same becoming accidentally detached. from the switch is eliminated owing to the fact that only upward movement of the blade can 15. a i I {claims-U v 7 Y 1. A combined fusefand switch structure comprising insulated supporting means, a fuse blade, means for suspending vsaid fuse blade from said supporting means comprisi-n a pair ofterminal members depending from said supporting means, and means at the lowervends of said terminal members for detacl iably connecting the fuse blade theret0,-where by the fuse blade, when operatively applied, will be disposed 'ifus'e bladeiand meansv 'fori suspending said fuse blade from saidsupporting means comprisinga pair of terminal inembersdepending from said supporting means; said terminal members teach-having their lower ends formed toprovide hook-shaped blade receiving 7 portions with :said portions opening upwardliy, whereby the fuse blade when. :opcrativelyzapplied; will be disposed at-thealower 7 most end of vtheflsstrn'cture. 7

3. A combined fuse and switch structure comprising insulated supporting.,.means, a

fuse blade, means for suspending said fuse] blade iflOIIl saidssupporting means eomp'rising a pair of terminal'inembers :depending from said supporting means, saidgterm-inal members each having itheir lower ends formed :to provide :hookrshaped blade receivi-ng portions with "said portions openingjup wardly, and .meansdependin'girom said blade, when the latter is applied, with which a blade removing'and replacing implement is clawed be eh eon-mafia.-

vIn testimony whereof I lhereunto'. afiix my Signature, 7 v r I cLiiYsoNfL. 3mm; I

Images