US1064985A

US1064985A - Electric cut-out.

Info

Publication number: US1064985A
Application number: US746?9713A
Authority: US
Inventors: Thomas E Murray Jr
Original assignee: Individual
Current assignee: Individual
Publication date: 1913-06-17
Anticipated expiration: 1930-06-17

Description

T. E. MURRAY, JR, ELEGTRG CUT-OUT.

APPMGATION FILED IEBA 1913.

Patented. June 17, 191.3

' New York .and

Aof the block.

tion, fend =hy reason THOMAS E. MURRAY, JR..UOENEW YORK,

N. Y., ASSIGNOKRSTO THGMAS EMURRAY, .DE

NEW YORK. N. Y.

ELECTRIC GUT-our.

fBe iit"l nown that il, THOMAS E. RAY, Jr., residing at New York, in the vcounty of State of New York, have invented-'a certain. new end useful :Improvement -in 'Electric 'Gut-Outs, of which the following is fa specification.

The invention is -an electric cut-out, designed .for use in connection with fuse carriers .having exposed fuse strips von -their opposite sides, -`which coperate with Vcontacts on ythe base. l.The construction is such thaton-e'or Imore-carriers may be mounted detachebly on a` pivoted support, whereby they may hefnoved into and out of cooperation y with vsaid I4contamts. The support niej be -'operated from the exterior yof a sealedcasing inclosing the parts.

LInfthe'faecornpanying drawings Figure l. is fa. longitudinal section of my cut-out on Munwith 'the cover removed, the casing being in Ihorizontal section on the line y, y of Fig. 1. Figfshows a-'use carrier in perspeetive.

'Similar nuirnbers' of reference indicate'like parts.l

The fuse carrier l comprises 'a block 2 of insulating material, fin 'which is `set a thin plate-3 of 'lilrernaterih The middle contracted rportion of the fuse strip 4 Vis disposed fin-n .recess 'in the upper edge-oi' said plate. =`Saitl strip is doubled over the edge of the 'plate soithat-its arms are in Contact iwith opposite sides ot said plate andfsaid block. Theends of the strip are securedin any suitable Vvway to the bottom When the "fuse, is 'lilo\v.n, rupture "taires fplace at the Acontracted porof lthe 'fact that ythe current niovesfinopposite directions in `the ar-msofthe strip on-opposi-te sides otplate 8, repulsionf'takcs placebetween f the fields surrounding'said arms, whereby said arnis are forced asunder,'sotliat wideseparation of the ends of theblownfuse is thus assured. A fuse constructed on this principle is disclosed in my copending application, Serial No, (S9-2,258, filed vApril-22, 1912,

and is not herein claimed. "My present de-Y,

Vice is designed to permit of convenient ya lcitizen of,the United States,

'Specification of Letters Patent. 'Igintei'l Ji n "Z, 191 3, nplplcat'on'filed February 4, 11913. Serial o. 746,997.

insertion and removal (if-suche. inse carrier in one or more circuits. 1

The base v5 is preferably' of retractorjY f'three longitudinal recesses. in each recess is a plete 6 'turned upwardly at its inner 4end to form a 'vertical Contact '7. At the vopposite end of the-recess is a similar pleite 8 turned upwardly at its inner end to form a vertical contact The plates are v'separated, and the contacts 7 and Qstand opposite one another to'receive between ythem the fuse carrier l, which is placedso that vthe `arms ofthe fuse strip on thciopposite sides of block 2 respectively meet said con- "t-acts.V Une circuit terminal, as'lOyis connected to plate G, and corresponding circuit thus being` closed Vthrough the fuse strip?.

Journaled Ain lugs l2 on the outer 'walls "of base 5 is a shaft 13. Between saidlugs said shaft is polygonal in cross section, and =carries three arins li. To the upper `side of said arms is secured 'a cross bar 215 ot insulating'rneterinh having lateral lproiec-v fbetween the base block recesses. Extending also from each of said arms and parsllel to projections lil is a split rod 1T, which enters an opening 1S in the yfuse carrier l, =and is compressed in said opening, so that the carrier when placed on said "rofl is ltightly held thereon. The shaft 13 extends `through a wallof a metal casing 19 which Icovcrs thedevice. Said casing-may be sefcui'ed to a wall or other support by internal lugs 20. Outside of said casino, shaft-13 lcarries a handle 2.1, by which 'it may be rocked. The casing is provided .with a yhinged cover 22 secured by a. suitable seal. Jfastening 23. Three circuit leads are here shown provided with 'the usual threaded sheaths which -are secured in the endV wells of the casing by suitable nut-s.

in operation, the cover 22 is removed, and the several fuse carriers are placed upon 'the several rods 17. The handle 2.1 is turned 'vertically, bringing said. carriers between the several pairs of contacts 7, 3, and hence theuse strips into circuit. The cover is closed, and theseal fastening applied. The iiuse carriers can be lifted outwof their coninsulating material, and is here shown with Iterminal v11 is connected to plate 8, circuit tions 16 which extend over the partitions.

Cri

4separated contacts thereon, a tuse carrier .taets tacts by moving the handle in suitable direction, and replacedby restoring the handle to its original position. This can be done Without disturbing the cover. The projections 16 prevent possible Contact of adjacent fuse strips after 'the arms have been thrown asunder in the manner previously explained.

I claim:

l.. An electric cutout, comprising abuse, separated contacts thereon, a twoariued fuse strip, a carrier interposed betwei-rn the arms of'said strip and a support for said carrier pivoted on said base for moving said fuse arms into and out oit coflperation with said contacts. i

Q. An, electric' cut-out, comprising a base, Separated contacts thereon, a two-armed fuse strip, a carrier interposed between the arnis of said strip, a support for said carrier piv- -oted on said base for moving said fuse arnis into and outof cooperation with said contacts, and means for detachahly connecting' said carrier to saidsupport.

An electric cut-out, comprising a base, separated contacts thereon, a 'fuse carrier provided with an opening and having an exposed fuse strip upon its opposite sides coperating with said contacts, a sumiort for said carrier pivoted on said base for movin r'said carrier into and out of cooperation with said contacts, and an arni on said support extending between said. contaetsand received :in said opening;I in said carrier.

4. An electric cut-out, comprising a base, separated contacts thereon, a two-armed fuse strip, a carrier interposed between the arms of said strip, a support for Said carrier pivoted on said base for moving said fuse arms into and out et' cooperation with said contacts, a casing` wholly inc-losingA said parts, and means external to said casing` for operating said support without openingl said easing.

5; An electric eut-out., comprisingI a base,

i l l provided with an opening and havin w an tirets, land a bell erankiever-pivoted on said base and having one arm enteringl said opening- 5` in said fuse carrier, to uioveltle saine into and out of cooperation with said eon- (3. An electric cutout, comprising' a base, v separated contacts' thereon, a. :fuse carrier ha ving au exposed fuse strip on its opposite sides cooperating' with said conta cts, the said strip being doubled upon itself with its arms parallel andv in mutually repulsive proximity 'whereby upon the rupture ot sai r`l strip,

said arms shall be mutually 'forced asunder, and walls ot insulating` material on said base in proximity to and facing said arms.

7. An electric cut-out, comprising,` abase, separated contacts thereon, a fuse carrier having au exposed. fuse .strip on its opposite sides cooperating with said conta-cts, the said strip being doubled upon itself with its arms parallel and in mutually repulsive proximity whereby upon the rupture ofisaid strip, said arms shall be mutually forced asunder, walls ot insulating material on said base in proximity to and facing said arms, and a support for said walls and carrier pivoted to said base and movable to convey .said carrier into and out ot' cooperation with said contacts.

8. Au electric cut-out, comprising a base, two' pairs of separated contacts thereon, two fuse carriers, each having an exposed fuso strip on its opposite sides cooperating with a pair ot said contacts, the said strip being doubled upon itself with its arius parallel and iniuutually repulsive proximity where by upon the rupture oi2 said strip, said arnis shall be mutually `torced asunder, and a carriers.

S). An electric cutout, comprising a base, two pairs of separated contacts thereon, two fuse carriers, each having an exposed fuso strip onits opposite sides cooperating with a pair of said contacts, the saidy strip being doubled upon itself with its arms parallel and in mutually repulsive proximity whereby upon the rupture o 't said strip, said. arms shall be mutually asiuider, a screen of insulating niet yrial between said carriers, and a support for said sc. und carriers pivoted to said base and movable 'to convey said carriers into and out oli cooperation with said contacts.

l0.. in `electric output, "ouignising having plurality ot' longitiuliual ie a pair of separated contacts in each recess, Juse carriers, each liar/iu 'in exposed fuse strip upon .its opposite the said tuse strips vcoiioperatii facts, a roel.; sh ariu's on said shai't engaoii .i

to move the saine n' .i ot' cooperation with said couacts, u, cross bar on said. arms, and projmfng plates of insu base,

dating material ou said bar disposed opposite the intervals between said arms.

'lu testin'ioujvy fheroot' l have aiixed my `sigi-iature iu i i sence oi" two "witnesses,

` r t lifts E. liillR-RAY, du.

cesses,

screen oi' insulating` material between said liti