US1667558A - And olos-thibd to alviif m - Google Patents

Description

April 24, 1928. 1,667,558

A. w. MALONE CROSS ARM CLAMP Filed Feb. 14. 1928 2 Sheets-Sheet .2

W; x (t FH WMaIone Patented Apr. 24, 1928. e i

UNITED sTATEs PATENT ormen.

AiioLrHi W'MALonri, or rIL-LMoRn, uran, assienon or ONE-armen :ro ALBiinr 1-1. vEsrAL, or Antonsson, INDIANA, Ann orm-muren rro Aiivm in. Locxwooi), or

r san ANToNIo, frExAs. i i 'i j p CROSS-*ann ormar,

-nppneanonfflied February 14, 1928. seriai No. 254.308.

curing a cross armtol a' pole or post and-it shown in Fig. '3,1 i

is an object of the rinv-ention to provide ar Fig. 6, a fragmentary top' plan view of clamp *designed primarily for' securng a a slightly modified form of fclamp applied 5 cross arm of any 'appropriate material 'to a to a Wooden pole and cross arm, i

metal post lsuchyfor example, as illustrated -Fgure 7, a fragmentary sidefelevaton in my Reissue Patent'lNoJ 165684, granted showing myinventon appliedfto'a metallic July 19, 1927, but 'Which may be used also tubular pole and metal cross arm,

y Witli'p'oles of Wood, concrete or other appro- Flgure 8, ra section on the line 6-6 of 10 priate construction Without! requiring the Fig. 3, and 1 outting of the pole or the boring of holes Figure 9, a fraginentary top plan view 'of in the same and Which'renders cross arin a further 'modified form of clamp applied braces unnecessary, all as Will be hereinafter to a Wooden pole and cross arm. more particularly 'described'and claimed. ln tlie accompanying dravvings a pole or 15 Wooden telephone .poles are ordinarily post 10 is shown constructed ofa series of treated With a solution'to exclude bacteria oppositely Wound members or Strands L- Which promote decay. During the process Shaped in cross section and Welded together of applying a crossfarm tothe pole a slot at their crossing points. A cross arm ll is cut in the pole for the reception of the of ordinary Wooden construction 'is secured 20 cross arm and a holefis bored throughthe to the pole 10 by my improved clamp Which center of the pole' and cross 'arm in, Which fits* about the pole and embraces the cross is placed ajbolt'Which's usedto fasten the arm opposite sides of the same. i parts together. *It isv also 'customary to use In' lieu'of the metal pole 10, a vvoodenpole cross arm braces' This method of attaching may be used as I'have illustrated in Figs.

25 the cross arm to thepole results not only in. 3 to 6 or if preferred a pole of some other impairing the strengthof the pole andcross material, as' 'fo-r example concrete o'r the V arm due to the unusual abusive stresses of like, may be employed. the enormous concentrated load at the point In'Figs 1 to 5 I have'sho'ivn-a clamp p of attachment 'of the arm ltolthie pole but the Which COmpr-ises a pair of spaced curved 30 cutting and boring operations puncture the pOle engaglhg portions 12 which conform to treated surfacefjof the pole 'and allow the the-shape of'the pole upon which the deentrance ofymoisture. and decay producing Vice 'is used eachof such'curvedportionsl bacteria Which negatives the chemical treathelng 'of alength suficient to extendslightly ment, i less than half the distance around the pole My' iinventi'on; relatesr to a clamp *for segure 5. a top planview of the structure 50 i 35 i Referring to the accompanying drawings and having end portons 13 extending outwhich are-i made a art hereof and on'vvhich Wflrdly parallel tO thed diameter Of the POIB ysimilar reference cl aracters indifcate similar and provided' With bolts 14 engaging opposed parts, e 'i 1 r cooperating curved members 15 for binding Figure 1 is an elevation of 'a pole formed the 'CllFVed members tlghtly around the pole. 40 of spirally Wound members and'jillustrating The Culr'Vf-fd POFIODS 12 and 1'531'6 preferthe appfication of my' inventonr 'e 4 I i ably provided With' protuberances orbosses Figure 2, a fragmentafy detail perspec- 16 and 17 respeotively pluiiched in by means tive of the top portion of thepole viewed Of a Center punch Or the like, suc h protuberfrom below1 y aiices being'adapted to engage the surface of 45 Figure 3, a fragmentary frontelevation the pole for preventing-rotation of the clamp showing my device applied to a Wooden pole on the pole. In order to strengthen the bolt and cross arm, engaging ends of the curved member 14, re-

Figure 11, aside elevationof the structure inforcing strips 18 are preferably Welded of Fig. 3, thereto at each side of the same.

.Each pole is provided with two clamps having the curved portions 12, one upper and one lower, and these Vcurved portions are connected at their extremities by means of yoke portions 19V which extend around and embrace the cross arm 11 for holding the same-firmly inposition. The portions 12 and 19 preferably are formed of an endless Strap as shown or if desired they may be formed yof separaterparts. i

i In the 'structure just described yoles 19 are disposed transversely substantially at right angles to the cross arm, however, in order to secure a betterbracng'connection yoke members 19' of sligthly greater length may be provided as shown in Fig. 6, but with the construction of the clamp otherwise the same. Such members 19.' eXtend from the pole to 'the cross arm at an acute angle. Also bolts 20. may bel employed -toprevent endwise movement of the cross arm inithe yokes or brackets which hold it.

In FigL'Z I, have shown a hollownietal Ipole 21 and a metalcross arm 22 with which clamps similar to those shown in Figs. 1 to CAS '23 inlieu of the bolts20 for holding the cross arm in place. ,In Fig. 9 I'have shown a wooden pole 10 and a cross arinll which are fastened together by means of braclrets or straps 25 having integral Vcurved portions 26 which eXtendl around the pole, the brackets and connecting curved portion forming a sub; stantially vU-shaped yoke with the extremities of the brackets engaging the cross arm lland being held in position by means of bolts 27. The points of connection between the, brackets and the integral curved members V26 are ofset-at 28 and areperforated to receive bolts 29 which secure an opposed curved'clamping member 30 in a relation so that the portions 30'and 26'when drawn together by the bolts 27 i eooperate to clamp a pole or post therebetween. I

It will be readily apparent that lhave provided clamping means for securing a cross arm to a pole which is of very simple and ineXpensive construction, which does not weaken the pole or crossarm'or expose it to decay producing bacteria.

It Will be obvious to those skilled in the art that various changes may be made in my device-without departing from the spirit of theinvcntion, and I, therefore, do not. limit myself to what is shown in the drawings and described in the specification but only as set forth in the appended claims.

' Having thus fully described my said invention, what Iclaim as new and desire to secure by Letters Patent, is i 1. The combination withan upright pole and a transverse cross arm, ofymeans for attaching the cross arm upon the pole comprising a pair of opposed clamping members,

and means for drawing the clamping members toward each other about a pole independently of the engagement with the cross arm, one of said clamping members having its ends extended and formed to embrace the cross arm, substantially as set forth.

2. 'llhe combination with a pair of cross members, of means for securing the cross members together comprising two pairs of opposedclainping members arranged on one of the cross members in relation spaced in accordance with the thickness of the other cross member, and means for drawing said clamping members together for tight engagement about one of the cross members independently of the engagement With the cross arm, the spaced clampinpmembers on the same side of one cross member having its ends extended and formed to embrace the other cross member, substantially as set forth.V

3. A clamp for securing a member transversely of a post comprising an endless band formed of spaced yokes disposed in similar relation and adapted to embrace the transverse member with the sides of the respective yokes connected by post engaging portions, additional post engaging portions disposed in opposition to said last mentioned post engaging portions, and means for binding the posts engaging portions together, substantially as set forth.

4. A clamp comprising a. pair of similarly arranged spaced body engaging members having their corresponding ends connected by a. transversely exten'ding integrally formed strap, and additional body engaging members arranged in opposed relation and Secured to said first mentioned body engaging members, substantially as set forth.

5. A clamp for securing a member transversely of a post, comprising a band forming spaced yokes Idisposed in similar relation and adapted to embraee the transverse member with corresponding sides of the yokes connected by a post engaging portion, an additional post engaging portion disposed in opposition to said last mention'ed post engaging portion, and means for bin'ding the post engaging portions together, substantially as set forth.

6. A clamp comprising a pair of similarly arranged, spaced body engaging members, having their corresponding ends connected by a transversely extending integrally formed strap, additional body engaging members arranged in opposed relation and secured to said first mentioned body engaging members by bolts adapted to clamp the body engaging members about the body, substantially as set forth.

7. A cross arm clamp comprising a pair of similarly arranged post engaging members having their corresponding ends laterally of'set and connected hv transversely entending straps adapted to engage a cross the said members about the post, substanarm, additional post engaging members also tially as set forth.

having their oorresponding ends laterally In wtness Whereof, I have hereunto set oset and arranged in opposed relation to my hand at Habana, Cuba this 21st day of 5 the first mentoned post lengagng members, February, A. D. nneteen hundred and the ofi'set'ends of the said oppose'd post entWenty-eight.

aging members being provided With openlngs adapted to receive bolts for elamping ADOLPH VV. MALONE.

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