US1991669A - Connecter - Google Patents

Description

Feb. 19, 1935. G. J. HAUSMAN 1,991,669

CONNECTER Filed Sept. 28, 1931 Patented Feb; 19, 1935 UNITED STATES PATENT OFFICE 1,991,669 ooNNEornIn George 1. Hausman, Cineinnati, Ohio Application September 28, 19.31, Serial no. 565,549 i 6Claims. "(01. 173F263) v t h n t n r te to onne o s u table for establishing an electrical connection between wi s nd o f m me hanica st ain lamp io ead endi wires, cle pi wi e n the like, 7 1 i n e ot goa d s ributi n s t msw re i'rel tively large cross section are frequently u fid to Doris. ea y o rr t M v n ion pro d s a onne t uit bl o tab shine an ectrica oonho t on h w no n -i ir a a m n n wi of hi type, a on e ti whi h n be made ily established and which. may be readily diseonneoted when it-isdesired to break the corinech h i eenth two li s.- h m rovod: conneoter of my invention is also serviqeabie. tor oo oi e ihmn r wires rom ne deadend Be n of t e meinl n t anoth Bocens V its higher mechanical holding power, this; con;

neoter when iorrnedrof suita biema-terial, oan'be ,used asa clamp 'for dead ending, attaching g y wires, and wire rope and the like. V V In its preferred form my irg proved'connectei' ons sts i h hh se ond oidn i-ie m l, ho hs." ts ends's ohred n a hlook, of ri i m e Th 'i hon o med a a f a ened ub h t s, as =1 lbn re tan e ha in pa al el ides an es e dn If m .1 1 1 The b ock toh oh t r bb n snh o ed and the. side of the ribbon opposite it are pierced with b h l h h ehwhi h a in nit bo t ni h s xam nes b t in e d; Ai nond rigid metallic plate is passedbn this bolt-kin the-outside of; the ribbon, ,to serveret s a. bearing blockhiigqihst whieh the hilt threeded oj the bolt hears to. drawithetwoTbloclcs together endthiis olarhn th a o d io i e en; ishfll 'hih the wires;

T cl m in hlo 'j o d os d, wi he longitudine l axes perelleitq the'axis of the wire,

sq that when the 'connecter is attached'tq wire, it is ela rnpedover a. relatively large surface I er that wire; and therefore a good, low resist nce releotrical oonnection and strong rnechanicetl -grip het w een' 'the clamp' and wire are assured.

'Myinvention will be best 'iindrstood by refer enee more aocornpgnying drawing in whiehv a preferred embodimento f it'is shown bgwa y'of example, and in whic hz Figg lis an end view 'o'i the eonnecter 'es se m hledono; wire; r i 1 Fig. 2oisva 12in iew-of the. eonneeter;

V ie-.3 iseh o s se l view of e oon ote taken; 3 g the line 3+3 of Fig. 2 100mg.

' -11 s ha e. eetiohei h 9 he qohheh rou de finde invited on aken along he. K t-, g-. Hookin i he di ecti n of h rrows- V 7 Ref r n now t he draw n n o e etai i s p efer e form c ne or on i t 95 a r ct n ular h ped; ib on r b n 1 which i com o dh t em i r at h ends i thi h n a sonnrod and fit ed i or v s? n i d, meta l blo k 3 to, ooii eiyho them in pla fe ably theond o h ribbon 1 a e r not i m vhhly rs on e in he r ove 2 an 1 i h hovered norh of t olt t r v ht it froin turning with. espe'ot to'theblock'. IFIhe sec rea-f to t e s'tr'giight Side 4 time iibto i hole so th aitwhen videdwith diilQEzuetrg'ior-i 14-adjaent the ribbon V M t R9 1? hih w l hte h hpheh 1 pertain instances the block 11 may be. cast from a, no

h t nete ihdhe: hv h h tQ -WiP ii 7 I hav i l h e hh nsir tion by rivet 12, Figure A mitI 1 5: threaded on the promotingv Gi l d of the hoit 8"beaLrs agjiiist tf e upeer block 'Siirfaloe or the blookll to'foree thatihlok and thestright side seetioii' of'the ribidon'l" towar the bldok'fii. With wires threaded into the" rpii'nded" Lends dfth ribbonr and'thihiitl ti htened in the mann r. shown in Fig. the 'bl'oElf forces the ribbon 1 t imming b'l'ookB' an etw en the 7 when surf e i in i t b t w thosev wires outwardly away from the bolt 8 and en a ing. face 14: of the hIockiL the r'ibhonji's sh'aped'to engage more'ofthef siiirfece of the wires, -i the t -ohmnh'h hth nawnn e'- b; ri engages at least two thirds offithe eirg inirennfiennh ni wi m n the r n ed ehiish of nlnm n on or ribbon 1. Because of therarc afte shape'ot the As will be seen in Fig. 1, when the clamp is tightened in place upon the wires, those wires are spread away from the bolt 8. If, for example, the wires 6 are composed of copper and the clamping band or ribbon 1 is composed of copper, the bolt 8 and clamping blocks 3 and 11 may conveniently be made of steel or other relatively cheap metal, since they do not come in direct contactwith the wires 6 and therefore there is no danger of accelerating corrosion because dissimilar metals are in contact with each other and the atmosphere. Corrosion may take place at the ends of the ribbon 1 which engage the block 3, and at the junction of the ribbon and block 11-; however, because of the location of these points,

such corrosion will not materially affect the re-=:

sistance of the contact between the'two wires 6.

When the connecter is being used to establish a connection between a main line distributingwire" and a lead-in wire, the formerwill not ordinarily be dead-ended; and the connectermust therefore be capable of being slipped over the continuous wire. This is accomplished by inserting a pointed .tooL suchas for example a screwdriver into the crack between the block' 3 and the ribbon 1, it

beingobserved that the free edge of this block is spaced "slightly front the ribbon, as shown at -'16,1to permit the insertion of such a tool. Preferably the slots in the block are made sufiiciently large that the ends 2 of the ribbon may be'slipped in and out of them easily' and the block will therefore fall off of the ribbon when'the unit is removed and the use offtools to separate the connecter ordinarily willnot be necessary. The block 3 is thus easily removed from the ribbon and the connecter may then'be slipped over the line'wire' by passing the same between the adjacent ends of the clamping band 1. The grooves 2 in the block 3 are spaced apart a distance slightly greaterthan the diameter of the largest wire with which the connecter is adapted for use,

so that'that wire will readily passibetween the adjacent ends of the clampingme'mber when the block3 is removed, and it will not be necessary to disform' the band inorder -to position it upon the wire. I

After the band hasthus' been placed over the wire, block 3 and bolt 10' arereattached to it,

and the nut loosely threaded upon it. The dead end of the lead-in wire may then be slipped through the connecter, and the bolt tightened down to clamp the two wires together. 1 -As the block 11 is drawn towards the block 3 the distance between the rounded end sections 5 of the connecting band will be shortened and the wires 6 will therefore be drawn toward the bolt 8; however, because of the shape of the block 3 and the block 11, the wires will never actually come into contact with the bolt, as explainedabove.

The tightening up of the bolt causes the block 11 to depress the central portion of the band and at the same time to pull the block 3 inwardly. The effect of this is to wrap the band more closely around the conductors '66. As the tightening action proceeds, the central parts of the band are 3 and the conductors 6-6. In other words, after the block 3 and block 11 have begun to wedge.

between the conductors 66, such pressure tends to keep the free ends of'the band from escaping out of the block 3. This principle may be applied;

in other ways than the particular one which I. I

have shown. The ends, such as 2-2, may be permit theaforesaid action of the wedging of the block on'opposite sides to occur.

The materials hereinbefore specified have been given by way of example only and are subject to variation to meet the particular purposes for which the clamp connecter is used. In one embodiment, used to electrically connect copper wires, the band orribbon l is composed of soft drawn copper, the bolt of a non-corrosive metal,

the nut is brass and the blocks 3 and 11 are cast, of non-corrosive metal. In another embodiment used for mechanically connecting two wiresgsuch as guywires for example, the'parts of the connecter are all composed of; non-corrosive metal, although steel might equally well be used'in this instance. It will be seen that the materials of which the parts are composed is not of the essence of my invention.

'- My improved connecter is of-simpledesignb andcan be manufactured at low'cost. Itcontains v w a a minimum number 'of parts, and can therefore be readily attached to a line wire without the use of special and complicated tools. q -While I have chosen to show my invention by illustrating a preferred embodiment of it,I have done so by way of example only as there are'many modifications and adaptations which can be made by one skilled in the art'with'inthe-teachingsoi' myinvention. F i WhatI consider new and desire to have'prote'cted'byLetters Patent is pointed out inthe appended claims. y

What isclaimed is: j 1. A clamp connecter comprising a-band of ductile metalformed as a hollow rectangle h aving rounded ends, the end sections of said band beingspaced'apart and disposed in planesinormal to the longitudinal axis of the rectangleandpop-i posite to its long side, a rigid rectangularfbl ock having slots for, registering with theend sections of said band, and-means engaging the band and block' for clamping the band .upon a pair of wires.

, 2. A clamp connecter comprising'a. bandioit ductile metal formed as a hollow. rectanglehaving'rounded ends, the end sections of said band having islots into which the end sectionsof. said band loosely fit, and means engaging the band and block for clamping the band 'upon Pair of wires.

3. A connecter comprising, a rectangular I metallic block having a pair of parallel longi-. tudinal slots and a square hole located centrally in itbetween said slots, aribbon of semi-flexible metal disposed with its endsembeddedin said, 7

slots, said ribbon being shaped as a flattened tube and its long face oppositesaid 'slots,'" said long face being provided with a bolt' hole, a rigid block attached to said ribbon adjacent said" bolt hole, saidblock having an 'arcuate face'engag ing blocks and ribbon for drawing the blocks together. i 4. A connecter'comprising a band of ductile the ribbon and a bolt'extendin'g through said material having a plurality of holes, a block resthaving a square opening between said grooves; a

bolt projecting through said blocks and band and tightly fitted intojsaid square hole, and a nut threaded on said bolt and bearing against said first block to draw the blocks together and thereby tighten the clamp on wires engaged by the band.

5. A connecter comprising a band of soft drawn copper having a plurality of holes, a block of non-corrosive metal having rivets cast in it and projected through certain ones of said holes, said projections being peened over to rigidly attach the block to the band, a second block having grooves into which the ends of said band are tween'said grooves, a non-corrosive metal bolt projected through said blocks and band and tightly fitted into said square hole, and a brass nut threaded on said bolt and bearing against said first block to draw the blocks together and loosely fitted and having a square opening bethereby tighten the clamp on wires engaged by the band. V

6. The combination with a pair of spaced conductors, of means for eflfecting a connection therebetween comprising a ductile metallic band encircling said conductors and having its ends terminating below and between said conductors, means engaging said ends for holding them in position with respect to said conductors, and

said last named means also wedging said band between said conductors.

. GEORGE J. HAUSM

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