US1920970A - Guy-line clamp - Google Patents

Description

Aug. 8, 1933.

J. M. CHEVALIER 1,920,970

GUY LINE CLAMP Filed April 28, 1930 l ENT R i?? g, Jan ocwa//ef TTRNEY Patented Aug. 8, 1933 g STATES PATENT GUY-LINE CLAMP reim M. chevalier, seattle, wesh.

` l Application April 28, 1930. Serial No. 447,879 f 14 claims. (CI. 2`41`25) This invention relates 'ato clamping devicesffor guy-lines, the objectjofwwhich, generally, isthe A further objectof the invention is the provisionof novel means for eiecting an embedding of the 'clamp body to the cable support, customarily a stump, and wherein such is effected by and responsive to tension imparted to the cable. A still further object of the invention is the provision of means for safeguarding possibility of clamp release through the cooperative activity of the cable with respect to the clamp.

- With the above and' further objects and advantages in'view, the nature of `which will become apparent in the following description and claims, the inventionconsists in the novel construction, adaptation and-combination-of parts hereinafter described and set forth in the claims thereto annexed.

ln the drawing,-

Figure 1 is a side elevation indicating a clamp en'ibodying the present invention applied with respect to the guy-line and stump of a post-rigging operation, Fig.' 2 is a top plan of the invention, taken to an enlarged scale, the cap meinber of one clamp being indicated in disengaged disposition. Fig.y 3V` is a side elevation with parts broken away and shown in longitudinal vertical section substantially on line 3-3 Vof Fig. r2, the cap members being disposed in operative positions. Fig. 4 is a transverse section indicating` the application of dogs and spur'to a stump.

With reference thereto, the numeral 5 represents a cable constituting the guy-line for a post (not shown) and to which the invention is adapted to be applied cooperatively vwith an anchor member such as a stump 6.

I-Ieretofore, in conventional rigging, a guy Aline is given a half wrapabout a stump, the eye extremity hooked to a power cable from the drum of a donkey engine, and pulled taut, the crewstaggeringspikes tothe cable in retaining vthe same rigid with the stump, subsequent to whichthe power cable is slackened, the guy cable.

line released, given a double' Wrap, again" drawn taut, andspiked.

- Numerous expediente have' been devised to: the end of overcoming the'- labor and consequent spike loss of amethod originatedin the pioneer years of logging. The necessity, however, for coinpletely changing conventional logging practice has practically eliminated extensive use of such contended improvements.

' `My invention lis primarily conceived to the end of utilizing a method' of "securing guyline requiring no change inthe advantageous practice of utilizing amultipl'e cable wrap, found most effective from protracted aridV extensive use.

Attention seing" iiedvniore particu-lernte Figs.

- 2 v and V3, *I representsa frarfii'e, the' conformation Vof which' provides an" interconnecting welff between end'brockeupportig neiiibeis 9; 1o. lopposite edges of said web"provideforkslLj 12 for the 'pivotal ntl'pitilo' f dogs" lf3, 1 f4`, the' latterprvl'dng aspik tip" 15'an`d; 'a' dli'vlig lfel member r6.

ywith reference te 'sere sappen members; r1 r'eIresentsA an annular' flangeA disposed circmferentiaiiy e ut einer; seati siens 1 8, blo'cks"1`9 being 'piviitally secure therein as by integrati, supported" studs zn passing-through axiallyy disposed p''lgfs of theF bas. XpUs'd ends of said studs are suitably wedged' to retain the same.

YDianietrically opposite' ofthe exposed block face, upstanding lugs are arrangedto enclose channels 2 3 fluted in conformity tothe strand contour of a cable, said channel being cooperative with the uting Y221 of a saddle or cap niember 25Y for thefinterposition therebetween ofthe.

More particularly, saidcap pieceprevides, laterally ofthe fluted channel, or stud projec- Y tions 26 arranged in pivotal securement Within a vertical rec ess 2 7y v ofv the' bloclz'meinber, the Vopposite edge presenting f oris 2 8` for engagement over the block-retained bolt 29,*cl'ampingnut 30 securing the assembly.V

n.With reference, to, liga '3, in assernlolingsaid bolt to the block-,the latter is-pivotally actuated to position a recessed aperture 32 ofthe-substantial conformation of tlie` bolt head in alignment to'an orice 31- of thebody,providingready insertion or removal oi the bolt from the block, 1 rigid securementto which is attainedbypivotally actuating the blockf into bolt retained disposition, as illustrated in the severalviews 33- represents aspur rigid and projectingfrom the underneath face 34 of the body, said spur preferably being disposed medially of the body and in oiTset longitudinal disposition from the dogs.

The construction will, it is believed, be readily apparent from the foregoing. In operation, the clamp being disposed as indicated in Fig. 1, the rigger drives dog 13 to the stump in a manner to retain the clamp in operative disposition.

,Cableilina Ifis Apassed about the stump and througlithe lower" block, 'drawn taut, and clamped.

As is believed apparent, tension imparted by. the power drum embeds spur 33 to the stump, forward dog 14 being driven prior to slackening the power in retaining'tlie line insecure disposition.

The free end of the cablefispassed about thel stump, over the dogs and lthrough vthe upper bloclcin double wrappings L1 and L2, being again ytightened and clamped.,V

` releasing,'turns'lli'l andI-Pcare disengaged, l, reversed over the stumpinthe direction of the llive'l guyli'ne, allowirigldislcdg'ment of dog 14 from the" stump', 4as by 'a bar, to effect a release Aof the entire clamp, suchfbe'ing carried with the "cablei The clamp yis readily released from the deadline. y i AWhile Il have ill'ust'ratedan'd herein described `said recesses, the exposed face of said blocks be- `ing channeled, saddle members having uted -channels arranged for'clam'ping engagement over la. guy-line disposed inthe channels of said block,

n' means constituting dogs adapted 'for Vengagement insaid support, :and'means constituting a 'spur rigid with the framev and adapted to be embeddedin' the support responsive to tension imparted to the guy line passing through saidblocks.

f2. In cable lclarmping devices, the combination with a cable and-asupport therefor, of a clamp, said clamp comprising a frame, a pair'of spacedapart annular recesses in said frame, blocks pivotally secured-v for rotatory movement in said recesses,` channels for said blocks, channeled cap pieces pivotally secured to said'blocks for clamping engagement: over a cable disposedy in said "block channels;nutings"forjsaid channels, and

means for' securing said frame to the support,

Asaid means constitutingmanually driven dogs and a spur, `said spurbeing effected operative 'to said support responsive to pressure of th cable jdirectively'of said support.

` 3. In a guy-'line' clamp; aframe, said frame having an integral -spur in Athe underneath side thereof adapted to be embedded in a support, a pair ofblocks rotatably mounted to the exposed face of said frame, boltscarried by said blocks disposed in offset disposition from the axes, clamping nuts for said bolts, apertures ariangedin said blocks at diametrically opposite sides from the'bolts, saddle elements pivotally mounted in said apertures, said saddle elements providing forked freeY ends for straddling engagement to said bolts, grooves disposed oppositely in said pairs of Vblocks and saddles for the engagement 'of `respective Wrapso a guyline, and means cooperative with said spur for retaining said clamp in secure disposition subsequent to an initial clamping of the guy line in one of said blocks and prior to clamping such in the other of said blocks.

4. In apparatus as described in claim 3, wherein said channels are fluted in substantial conformity to the contour of the guy-line cable.

5. In a cable clamp, a frame, means carried by said frame-in the 4underneathface adapted for embedding engagement to a support, grooved blocks rotatably supported by said frame in the exposed face for respectively receiving Wraps of a cable passed about said support, saddle means carried by and adaptedtoV seat over said blocks, and means to clamp said saddle pieces with respectto the cable in said blocks.

6. In a cable clamp, a frame, means carried by said frame in the underneath face adapted for embedding engagement to a support, grooved blocks supported by'said" frame inthe exposed face for respectively receiving wraps of a cable -passed about' said support, saddle means carried by and adapted to seat-over said blocks, and

pieces with respect spect to a support, means constituting grooves in `saidlc1amp for receiving multiple wraps of a cable passed about said support, and pivotally supported means for clamping the cable selectively with'respect to said grooves.

8. In a cable clamp having an integral spur arranged for embedding engagement with respect to av support, means constituting grooved blocks arranged in the exposed face of said clamp for receivingmultiple wraps cfa cable passed about said support, grooved saddle elements for said blocks, and means for clamping the cable therebetween.

9. 'In a cable clamp adapted for securement to a support, means constituting grooved blocks mountedA for rotatory movement in the exposed face of said clamp `for receiving multiple wraps of a cable passed about said support, grooved saddle elements for said blocks,and means for clamping the cable between respective blocks and saddle elements.

10. In a cable clamp adapted for securement to a support, laterally spaced-apart grooved lblocks supported by said clamp for receiving successive turns of a cable passed about said support, grooved saddle elements for said blocks, and means for clamping the successive cable turns selectively between the respective blocks and 'saddle elements.

11. In a cable clamp adapted for securement to a support, means constituting grooved cable- 'securing blocks mounted for rotatory movement in the exposed face of said clamp, grooved saddle elements for lsaid blocks, and means for clamping a cable between respective blocks and saddle' elements. l

12. In a cable clamp, a grooved cable-receiving block, a saddle therefor, means to clamp acable between said block and the saddle, and means comprising dogs pivotally supported by said clamp and arranged -for embedding engagement in a support for securing said clamp to the support.

13. In apparatus for securing a guy-line cable with respect to a supporting stump therefor, a cable-receiving clamp 'adapted to be positioned on a side of the stump, a dog pivoted to the 14. In a clamp, a bodi7 member, a pair of` laterally spaced-apart grooved blocks rotatably supported by said body member for movement about parallel axes, saddle elements for said blocks, and means to clamp the Work between said blocks and saddle elements.

` JOHN M. CHEVALIER

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