US1212708A - Wire-clamp. - Google Patents

Description

L. STEI'NBERGER.

WIRE CLAMP. APPLICATION F ILED DEC. 8, 19l3.

Patented Jan. 16,1917.

I: wimeo LOUIS STEINBEBGEB, OF BROOKLYN, YORK.

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Specification of Letters Patent.

Patented Jan. 16, 1917'.

Application filed December 8, 1913. Serial No. 805,368.

, To all whom it may concern:

Be it known that I, LOUIS Srnmnmzonn, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Wire- C amps, of which the following is a specification.

' This invention relates to a clamping device particularly adapted for engaging and retaining a line wire, the particular type of the device being such as is commonly at tached to the lower end of a chain or other type insulator for supporting the line wire in suspended rclationfrom a tower or the like. It will be obvious, however; that the l principles of construction of the clamping 4 device which may be manufactured at small cost, and the parts of which maybe easily,

device illustrated. may be employed 1n a clamp adapted for use in other specific relations.

[A particular object of the invention. is to provide a simple and efiicient clamping accurately, and quickly assembled when desired.

A. further ob'ect is to provide the clamping device wit means whereby a portion thereof may serve as a positive temporary support for the line wire, pending adjust ments' of the line wire and prior to the application of the clamping member of the de vice for retaining the line .wire in an ad justed position.

Other objects and aims of the invention,

more or less specific than those referred to above, will be in part obvious and in part pointed'out in the course of the following escription of the elements, combinations, arrangements of parts and applications of principles, constituting the invention; and the scope of protection contemplated will be indicated in the appended. claim.

In. the accompanying drawings which are to be taken as a part of this specification,

and in: which 'I have shown a merely pres fen-ed form of. embodiment of the inventionz-Figure ,1 is a side elevational view of a clamping device constructed in accordance with the principles of; this nvention, the being illustrated 1n suspended relation so i from a support, the support illustrated. be-

ing the lowermost unit of a chain type insulator; Fig. 2 is an enlarged, horizontal, sectional view taken. substantially on the plane of line 11- -11 of Fig. 1; Fig. 3 is a further enlarged. vertical, sectional. view taken substantially on the plane of line l'II-III of Fig. 1'; Fig. 4 15 a View similar to that shown in. Fig. 3, but being taken substantially on the plane of line IVIV of Fig. 1; and Fig. 5 is a perspective view'of the clamping member of the device illustrated.

Referring to the drawings for a detailed description of the structure illnstrated, the

reference character L indicates generally the main or body portion of the device, which as shown, is preferably longer. than wide,

and is formed with an upturned flange or hook-shaped portion. 1 extending continuously along itslower edge so as to define asemi-ciroular pocket 2 longitudinally thereof, of a diameter substantially that of the wire 3 to be supported. The'forward end,

as i, of the portion 1 extends upwardly to a' level considerably above the plane of the lower wall of the pocket 2, so that likelihood of the wire being accidentally displaced after beingoncc engaged in the pocket is avoided;

Any suitable attaching means may be formed upon the portion L,'such for instance,

any suitable support, as for instance, the loop 6 of the strain member of the insulator unit G illustrated;

' The clamping member of the device is designated by the reference letter H, and this oomprisesa-rectangular piece of metal preferab y of a length equal to the length of the body portion A air of apertures 7 are formed through the c amping member in spaced relation to I receive the.- clampin as the closed loop 5 illustrated. The eye. formed in the loop 5 may be engaged about threaded relation with suitablethreaded sock-v I ets 9 formed in the body portion L, suitable bosses 10 being preferably provided upon the rear surface of the bod portion L so as to .receive and close the en a of the sockets 9.

The lower edge of the clamping member H is intended to rest substantially upon .the upper edge of the portion 4 of the body and said clamping member is provided with a semicircular groove 11 longitudinally thereof at its lower edge incontinuation of the roundness of the pocket 2, so as to rest closely against the wire being clam ed The body portion L is provide with a shoulder or overhanging part 12 for engaging against the upper surface of the clamping member H, and the. upper surface of said clamping member is provided with one or more guide ribs 13 extendin transversely thereof, and adapted to sli ably engage within suitable guide-ways14 formed in the under surface of the overhanging portion 12. These guide-ribs and guide-ways provide a convenient, easily operated, and ellicient means for enabling the operator to adjust or place the clamping member H into proper relation, so that the apertures 7 thereof are alinecl with the sockets 9 of the,

body. The subsequent insertion and quick engagement of the bolts 8 with the threads of the sockets becomes a relatively easy matter as compared with the uncertain and tedious task which would be involved in the en gagcment 'of the boltswith the threads of the sockets, were it not for the guiding eificiency of the guides and guide-ways. Obviously, a single guide and its cooperating guideway may be used if desired, though, it has been found that two or more provide a greater degree of accuracy withoutnecessity formilling the engaging surfaces of the guides and guide-ways. The small degree of roughness in the casting may destroy the slim- "i5 is employed, but

ment where asingle guide and guide-way with two or more, the inaccuracy of one of them is corrected by the other. The guide-ways 14 and ribs 13 also .serve to retain the clamp member in pro r P08161011 for any reasonable length of tune pending the insertion of the bolts.

The space between the lower surface of i the shoulder 12 and the upper edge 4 of the clamp member,

flange 1 is sufligient to easily accommodate passage of the wire 3, when the clamp memor H and clamping bolt 8 are removed.

, ever one of the bolts, withoutv the v., wireagainst Ion" '"dmal movement. The I la ,of the climp member H is neces- F the flange so as to be easily movable,

is inserted, it will then be: impossible to entlrely detach the wire. This poaitively'clunp the; wire.

The clamp member is of a width to fit between the shoulder and the upper edge1 of;

an 1 may be noted, that the wire cannot possibly become disengaged except after the total disengagement of the bolts from the sockets, whether the clamp member H is employed or not. Slight loosening of the bolts from the socketswill permit longitudinal movement of the wire, however, and this is of a decided practical advanta in that it rmits easy adjustment, wit out likelih of the wire becoming detached.

In using the structure illustrated; an operator may-string his line wire overa considerable distance and support it temporarily at one or more intermediate points in the pockets 2 of this device, the clamping member being entirely removed and the wire being simply held by gravity within the pockets and being easil movable longitudinally thereof. After t 'e wire has been properly adjusted longitudinally, then the clamping members ofall of the devices may be applied and screwed home to positively clamp the wire against further relative movement. In carrying out this work, the

operator usually works from above, that is,

present invention, however, he has merely to reach down at arms length and place the wire within the pocket 2, and this tempora support for the wire will be suflicient until the whole length of the wire is ready to be positively clamped. The operation of applying the clamping partH maybe also accomplished without raising the insulator, for the reason that the guide-ribs and guideways assist him materially in this operation as above set forth.

As many changes could be made in the above described construction, and various embodiments of the invention could bemade without departing from the scope thereof, it

is intended that all matter contained in the above description, or shown in the aocompanymg drawings, shall be interpreted as illustrative only, and not in a limiting sense, a

and that the followingclaim is intended to cover all the generic and specific features of the invention which may be said to fall withimthe language of' said claim.

Hav ngthus described my invention what 0 1m as new and desire to secure byILettors Patent, 18'

n A device are;

, 1 h r i ing a body member terminating at its lower and bolts pissing through said ogeninga and 10 a end in an outwardly and upwardly turned into said sockets for clamping said parts toflange forming a pocket adapted to receive gether. v i i and supfport a length of wire, said pocketv 1 In testimony whereof I aifix my signature 5 being 0 a depth so that the wire projects in the'presenoe of two above said flange, a clamp member having LOUIS STEINBEBGER. a portion adapted to engage said wire, said Witnesses clamp member. being provided with o n- In Gnssig'oan HANDY,

ings and said body'member with soc ets, Nmnammflnoursox.

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