US1881659A

US1881659A - Cable grip form

Info

Publication number: US1881659A
Application number: US345682A
Authority: US
Inventors: Kellems Edgar Eugene
Original assignee: Individual
Current assignee: Individual
Priority date: 1929-03-09
Filing date: 1929-03-09
Publication date: 1932-10-11
Anticipated expiration: 1949-10-11

Description

Oct. 11, 1932. E. E. KELLEMS CABLE GRIP FORM Filed March 9. 1929 3 Sheets-Sheet ATTORNEYS INVENTOR. //aJ/rnd OCL 11, 1932. E, E, KELLEMS 1,881,659

CABLE GRIP FORM Filed March 9. 1929 5 Sheets-Sheet 2 il il INVENTQR.

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I Mrt/d Wir/V555' BY y l ATTORNEYS 3 Sheets-Sheet 5 Oct. 11, E. E KELLEMS CABLE GRIP FORM A Filed March 9, 1929 INVEN 0R.'

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ATTORNEYS Hlr Wir/v Es s Patented @et 11, 1932 EDGAR EUGENE KELLEMS, F LONG ISLAND CITY, NEW YORK CABLE GRIP FORM Application filed March 9, 1929. Serial No. 345,682.

This invention relates to a cable grip form adapted to be used in the manufacture of expansible and contractile woven or braided' wire grips of the class set forth in my Patent No. 1,670,543, May 22, 1928, in which the strands at the cable receiving end are continuous or returned, without break, toward the opposite ends of the cable but obviously the same form may be used in the manufacture of other types of cable grips.

n The wires or strands used in the manufacture of grips of this character are usually woven or braided by hand around a suitable mandrel having a plurality of rows of pins arranged spirally around and projecting rom the periphery of the mandrel in uniformly spaced relation longitudinally of the mandrel so as to form an open mesh tubular fabric capable of contracting when extended longitudinally and of expanding when con tracted longitudinally; l

Under these conditions it has been neces `sary to remove the relatively large number of pins in order to permit the stripping of the finished tubular fabric from the mandrel thereby necessitating thel expenditure of considerable time and labor in the act of re moving and replacing the pins.

The main object of the present invention is to obviate these difficulties by providing a mandrel with removable bars or rods arranged in uniformly spaced relation circumferentially around the axis'of the mandrel and provided with the requisite number of pins permanently secured thereto so that when the weaving or braiding Voperation is completed the bars with the tubular fabric thereon may be removed endwise from the mandrel and then removing the bars from 40 the interior of the woven wire fabric for replacement on the mandrel in repeating the weaving operationA of other tubular grips.

`In other words, l havesought to materially' reduce the time and labor required for the weaving or braiding of 'andfthereby to greatly'increase the output of grips for a predetermined time with a corresponding reduction in the cost of manufacture: f

yOther objects and uses relating to specific the tubular 'grips' parts of the invention will be brought out in the following description.

In the drawings:

Figure l is an elevation, partly broken away, of one form of my invention, partly broken away, in which the strand-engaging pins are mounted upon round bars held in place by a plurality of axially spaced disks en a central supporting shaft.

Figurey 2 is a longitudinal vertical sec- 60 tional view of the same device, partly broken away.

Figure 3 is an elevation of the upper portion of the same device with the strands woven thereon, the dotted lines indicating the removable rods with the tubular fabric thereon as partly removed by upward displacement from the supporting disks and shaft.

,Figures 4, 5 and 6 are horizontal sectional 70Y views taken respectively in the planes of lines 4 4, 5 5 and 6 6, Figure 2.

Figure 7 is an elevation of a modified form of my invention, partly broken away, in which the pin supporting bars or rods are held in place against the flat sides 'of a hexagonal frame through the medium of end caps or collars. v

Figure 8 is a sectional view taken on line 8 8, Figure 7 Figures 9 and l0 are horizontal sectional views taken respectively in the plane of line 9 9, Figure 8, and l0 10, Figure 7.

Figure 1l is a detail .sectional view taken in the plane of line ll ll, Figure 7. D

Figure l2 is a horizontal sectional view taken in the plane of line 12 l2, Figure l1.

The construction shown in Figures 1 to 6 inclusive comprises an elongated frame or mandrel l and a plurality of, in this instance eight, lengthwise bars or rods 2 removably mounted thereon in parallel spaced relation uniform distances apart circumferentially about the axis of the frame, each rod or bar being provided with a series of relatively fixed lugs or shoulders 3 in uniformly spaced relation lengthwise thereof to form gages for directing the weaving or braiding of the strands spirally around the mandrel and ioy thereby determining the size of the mesh of the tubular fabric woven on the mandrel.

' Suitable means is also provided for holding the rods 2 on the frame l against acci- -dental endwise, circumferential and radial ydisplacement immediately preceding and during the weaving or braidingoperation.

That is', the supporting frame or mandrel for'the bars or rods 2` comprises a central lengthwise shaft i carrying a series of axially spaced coaxial circulardisks 5 'of similar construction, each disk being provided with a series of openings 5 in uniformly spaced relation circumferentially about the axis of the.

rshaft and preferably 'opening through the periphery thereof I for receiving thel corresponding rods or bars 2.

As illustrated, the shaft is threaded throughout its lengthand is adapted to be engaged byfa plurality of nuts 6 which. are ar- *Yranged te hold, their respective disks 5 in operative position, as shown more clearly in Figure 2. Y

The shaft 4 is extendedbeyond the lower. and upper` end disks f5 and has itslower end in a spacingsleeve 7 which is clamped between the lowermost nut 6 and an additional nut 6 engaging the extreme lower end ofthe shaft.

`The sleeve serves as aprotecting medium lfor the adjacent threaded portion of the shaft e and is adapte d to be inserted into a socketed supporting base 8 shown by dotted lines in f the convenience of theoperator.

j. the lower ends vof the rods 2 are rest andfwhich serve as a rmeans bringY theirV respective 1 the-peripheries of are of less circumferential' width at said .pe-

, diametersl of the rods to'. hold the latter. against radial displacement. Y

:As previously stated, the disks 5 are held.

Figures'l and Y j rest upon'the floor and may be movedfroni place toV place withV the form thereon to suit As. previously intimated the disks 5 Vare similar andinterchangeable and when placed in operative positionvuponthe shaft l constitute amandrel having a series of vertical slots Y5 in which the rods or bars '2 are movable.

' It will be observed, however, that the lower diskA isadjusted circumfcrenti-ally to register the., portions thereof between the.' slots withthe lower ends ofthe bars or rods 2'and thereby to provide abutiients 5 upon which for holding downwardV displacement.

disks 5 Vare adjusted t slots 5 into-vertical alinement for receiving the rods 2 and retaining them in uniformlyspaced parallel relation; These slots-or openings V5 are open at their respective disks but thel rods vagainst The vremaining ripheries than( lthe inoperative position bythe nuts 6 rwhich are adjustable along and Auponthe shaft l toV y permit corresponding adustment ofthe disks fr "as 4may lbe required in cable gripsof dierent lengths;

- manner that the upper ends Vof 2. rihisv base 8 is adapted to adapted to the manufacture of,

The two lowerinost disks 5 are held axially spaced'relationby means of a sleeve 9 surrounding the shaft l and firmly clamped between said disks by the adjacent Vnuts 6.

yThe uppermost disk 5 is arranged so that its upper surface is substantially coincident with the upper ends of the rods 2 and is adapted to support a superposed` sleeve 10 which is held in place nuty 6, said sleeve l0 being vertically alined Vwith the upper endsl ofthe rods-2 to hold Ythe ylatter against upward displacement when the device is adjusted forkuse, Figure 2.

Vrlfhe lugs 3 are preferably hook-shaped with their outer ends projecting upwardly tohold the strands against accidentaldisplaceinenttherefrom during the weaving or braiding operation although it is to be'understood that during this latter operation the strands will be woven tightly against the outer surfaces of the severalrods 2', Figure.

V] hen the parts of theforin shown in Fig ui'es l' to 6 inclusive are assembled in the man-Y ner illustrated, the wire strands are bent intermediate their ends and hcoked upon the uppermost set of'hooks or lugs 3 after which the remaining portions of the', strands are woven or braided around the iiiandrelinsuch strands will be` integrally united to form continuous loops 'of `the ,haracter setufcrth in my patentpreviously referred to. f

Whenvthe cable grip isY finished'the.,lfoWi' ends if not of the sameY length may becutgto about the same length andv adjacent portions of the separate strands temporarily twisted together to hold the woven fabric against unraveling. Y

"When the woven or braided-grip is coinpleted the uppermost nut 6", cap ll and sleeve l0 may be removedby 'hand thus permitting all the bars `or rods 2 with the woven or braided grip thereon to be removed from the mandrel by upwa d displacement in ,the

manner indicated by dotted lines in Figure each `pair ,of

by a cap .disk l1 and 3 thus permitting the inward-coliapseoftheA rods and theY removal l thereof; from tlie interior of the woven `griprfor reuse: init-heA manufacture of other grips;

When preparing to weave or braid oneof the grips the rods2 will be inserted fromthe through their lnegistering A Y top downwardly multi-sided or hexagonal frameor mandrel 1 2 and a plurality of, inl this instance six, upf. right rods or bars 13 applied tothe several position to `holdtheiods Y sides of the frame midway between the angles thereof as shown more clearly in Figure 10, each rod or bar being provided with a series of hook-shaped lugs 14 in uniformly spaced relation longitudinally as shown in Figure 7, toserve the same purposes as the lugs 3 of the construction shown in Figures 1 to 6 inclusive.

The frame or mandrel 12 is provided with a downwardly projecting coaxial extension 15 which is preferably cylindrical in cross section and adapted to be supported in a f relatively to the in which the slots socketed supporting base 16 as shown by dotted lines in Figure 7.

The frame 12 is provided with a series of

vertical slots

17 and 17 arranged in uniformly spaced relation circumferentially thereof for receiving portions of the upright bars or rods 13 to hold the latter in uniformly spaced relation circumferentially when adjusted for use and also to support said rods against relative vertical movement frame 16.

As illustrated, the slots 17 are formed in the inner periphery of an annular sleeve 18 which is secured by means of a pin 19 to the cylindrical portion 16 of the frame adjacent the hei;- agonal portion of said frame, as shown in Figure 11. n

The lower ends of the rods orbars 13 are reduced in radial depth at 20 to approximately the cross sectional form of their respective slots 17 in which they are inserted, the reduction in radial depth of the bars forming shoulders 21 which rest upon the upper edge of the sleeve 20, Figure 11. f

It is now evident that the bars 13 are held against downward displacement and also against circumferential or radial displacement by the collar 20. f

These rods or bars 13 are held against upward displacement by means of a cap disk 22 17 are formed to receive the reduced upper ends of the bars and thereby not only hold the bars against upward displacement but also to assist in holding 'them against circumferential and radial displacement.v

The cap 22 is detachably held in operative position by means of a screw 23 and a nut 24, the screw 23 being secured to the upper end of the'frame 12 coaxial therewith and extended through a registering opening in the cap to be engaged by the nut 24 which, in turn, engages the upper face of the cap.

This cap 22 is held against accidental turning movement by means of a pin 25 which is secured to the upper end of the frame 12 at one side of the screw 23 to project through a registering opening inthecap so that when the cap is placed in operative position upon the frame its slots or grooves 17 will be in vertical alinement with the corresponding slots or grooves 17 in the lower collar 18.

Itis now clear that when the bars 13 are 'which the cable adjusted for usethey will be held operative position at the bottom and at the top by the

members

18 and 22 thus permittingthe weaving or braiding of the grip aroundthe outer faces of the bars 13 and lugs 14 in the manner described in connection with the construction shown in Figures 1 to 6 inclusive.

When the grip is completed on this modied form the nut24 and cap 22 may be removed by hand by upward displacement thus permitting the several bars 13 with the woven grip thereon to be displaced upwardly by hand from the collar 18 until entirely removed from the top of the frame 12 where` upon the bars 13 will be collapsed inwardly to free them from the previously woven grip and to permit them to be reused in the manufacture of other grips.

I claim:

l. A lform for making expansible and contractile woven 'wire cable grips thereon, comprising a mandrel, and supporting bars upon grip is woven arranged around the axis oi the mandrel during the weaving operation and displaceable endwise from the mandrel with the woven grip thereon, said bars being collapsible inwardly from the woven grip when removed from the mandrel.

2. A form upon which expansible and contractile cable grips are adapted to be woven, comprising a mandrel having opposite end heads relatively adjustable axially thereon, and a series of lengthwise bars arranged about the axis of the mandrel with their opposite ends engaged with the corresponding heads, said heads having means for holding the bars against radial displacement from the mandrel when adjusted for use.

3. A form upon which expansible and co-ntractile cable grips are adapted to be woven, comprising a mandrel having opposite end heads relatively adjustable axially thereon, one of the heads having a series of sockets arranged in uniformly spaced relation about its axis, and a series of lengthwise bars arj ranged about said axis and having their ends adjacent the socketed head seated in said sockets and their other ends seated against the adjacent head.

4. A form upon which expansible and contractile cable grips are adapted to be woven, comprising a mandrel having a plurality of axially spaced disks provided with openings therethrough said o enin s bein arci b 7 g g ranged in uniformly spaced relation about the axis of the mandrel, and a plurality of lengthwise bars arranged in uniformly spaced relation about said axis and extended through the openings in the disks, said bars being provided with outwardly projecting hooks arranged spirally around said axis for receiving the strands of the grip.

' 5. A form upon which expansible and conf tractile cable grips are adapted to be Woven,

comprising a mandrel having a plurality of axially spaced `disks provided With openings Vtherethrough, said openings being arranged in nniformly spaced relation'about the :axis of the mandrelg and a plurality of length- Wise bars arranged in uniformly spaced relavtionabout said axis and extended Ythrough the openings in the disks, and provided Witli outwardly projectingn hooks,V said bars being slidable endvvise in eirrespeetiye openings in the disks to permit their endwise displaceiol ment from the mandrel with the Woven grip thereon.

6..V Al form upon Which expansible and contraetile cable grips are adapted to be Woven, comprising a mandrel having opposite end members relatively movable axially thereon, and a series of lengthwise bars arranged about `the' axis of the mandrel with their opposite ends engaged With'the ycorresponding members, said members having means for holding the bars against radialdisplacement from the mandrel vwhen assembled fory 5 USG. n A l Y In Witness whereof l have hereunto set my hand this 4th day 'of March, 1929.

- EDGAREUGENE KELLEMS."