US1670543A - Cable grip - Google Patents

Description

' the grips of this u SHP as,

strands.which,' in thisinstance, are double or composed of two wires foradded strength although it is evident that theV strands may be composed of single wires or made up of several line wires. i 1

Each reinforcing member -6`- is slipped over 'the free ends of the strands which it is adapted to embrace before said ends are inserted in the couplin -member -5- and are adapted to extern? slightly beyond the junction of theytaper of the draft end of the tube with the main body thereof to take the strains and wear incidental to the drawin of the grip with vthe cable therein throug underground conduits or through voverhead supporting rings, -not shown.

, When the tubular i reinforing nembers. ;--6- are placed in operative position upon the strands they may be attened as shown in v'llligure 5 to firmly bind the inclosed strands together and to hold said strands and reinforcing members against relative endwise or lateral mov/ement without inter-- fering with the free radial expansion and contraction of the main body of the grip.

The couplin member -5- is preferably split or slotte longitudinally at -7- and threadedexternally for screw engagement with the adjacent 'end of a shuttle or coupling member -8-' similarI tof that shown 1n my pending application Serial No. ieaeoaledneb,10,1927;

-This screw enga ement,l of lthe member l-5-- with the mem er -8`-`- serves to compress the member -5-- upon the bunch ends of the strands 1 3- to assist vin firmly securing the draft end of'the cable to the draft member which maybe connected in any suitable manner to a in ch cable or other draft device whereby t e grip with the .cable ltherein may be drawn through anundergrbund conduit or' overhead support as desired; the reinforcin plates -6- which are taperedltoward t e coupling member serving `to facilitate the. threading ofthe grip through the underground conduit or overhead rm f ,i and also wit strands 'near their junctions withthe cou-v vwith a resistance a mimmum wear upon the Operation.

I-Ieretofore it has ybeen customaryto weave e from the draft en'd toward the open en but in the present appIication/the method of weaving is reversed so asto cause the strandsat theopen end of the grip to form continuous loops thus. roducmg smooth endv edges at the open en =o distinguished from thdshatp' end f hand 27th da of Janna edges produced under theold method of weavin' The dormation of these'continuous loops -2- at the open end of the grip enables the latter to be more easily placed over and upon a cable or other object to be installed to be drawn endwise and also greatly facilitates the release of the grip from the cable by moving the hand against 'the smooth end faces of the .loops and then compressing the i endwise thereby expanding the same radiall to free it from the cable and its wit drawal'therefrom. What I claim iszpermit 1. A- tubular-woven `wire cable grip hav- I ing the portions of its strands at its cablerecevin end returned toward its lopposite end to form a series of -loopsin uniformly spaced relation about the axis ofthe tube.

2. A cable grip composed ofwire strands interlaced about a common axis and extend- Y ing continuously from the draft end of the grip to the cable-receiving end and return to the draft end to form a-series of loops in uniformly spaced relation vcircumferentially about said axis at the cableV receiving end.

' 3. An expansible and contractile grip com posed of wire strands interlaced about a comimon axis and havin their endsebound together atoneend o the grip and their remaining -portions continuous to andreturn from the other end of thegrip to form a series of loops in circumferentially spaced re- I their remaining portions continuous from v -tect the embraced portions ofthe strands against wearby external objects as the gripping device-is moved from place to place.

In witness :whereof I have herirgo set' my aan. Ms.

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