US855138A - Cross-arm for carrying telegraph, telephone, or other wires and ropes. - Google Patents

Description

No. 855.138- v PATENTED MAY 28, 1907.

H. M. SGIPLE. GROSS ARM FOR CARRYING TELEGRAPH, TELEPHONE, 0R OTHER-WI RES AND ROPES.. APPLICATION FILED AUG. 2, 190a.

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UNITED STATES PATENT OFFICE.

H NRY s'cIPLE,

No. sas es.

To all whom it mwyconcermy Be itlmown that I, .HENRY M. SoiP E, a

. citizen of specification. IQ

' andropes,

" cross-arms,

strain,

the United States, residing at San Francisco, in the county of San Francisco and State of Califotnia, 'have invented new ,and useful Improvements in Cross-Arms for C'rr'ying Telegraph, .Tel e'phone 'or other Wires or Hopes, of which the fo owing is .a

' Y i '3) (D I invention relates to cross-arms for carrying telephone, telegraph, or other wires,

and particularly a plicable to secles orj .oles compose of metal members. e understood, however, that the-improved cross-arms'may be plied to poles confip'ose' of wood or metal :l afiydew 1 "form; he; variation in cross sectional-'conto i of thlpoles may be accommodated by modifying the openings. through the centers of the crossarms. In all wooden poles it isfcustomary to form a mortise By sawing the same inward about one-third of the diameterof each pole so as to receive the .and the latter are then bolted to the pole subjecting it to aside This construction invites decay and the side of attack by moisture and causes one side of the pole' to carry all the weight of arms and wire or ropes, and otherdestructive mediums.

In the present "invention the entire weight 7 of the arms and the wire or ropes held on the latter are supported by the upper ends of the poles sub ectmgthern .to a crushing strain plan view ofthe same.-

" the only. I v

The inventipn'consists in the construction and" arrangement of'the several parts which will be more fully hereinafter set forth. In the drawing, Figure 1 is an elevation of a portionof a metalpole showing the improved arms applied thereto. Fig Z isa top f Fig. 3,;isua plan view of one of the arms. Fig. 4iis a longitudinal vertical section through the upper or cap cross ,-arm Figs. ,5 and 6 are detail views partially in sectionof a modification of the arms. F-ig. 7 is a detail, lan view partly in section'cf a further modi cation of the amp. Fig. 8 is an edge elevation of the arm shhwn by'Fig. 7.1

Similarnumerals of reference refer to like parts throughout the several views. The numerall designates apole which in present instance is shown as being composed of a number of metal members'divergmg toward their "u per extremities This pole, however,may e an ordinary wooden central eyes or openings 4 of such diameter as eyes or openings4 the said arm'members also or SAN "rRANoIsco, crmrronrun CBOSS-AR'MYYIFOR CARRYING TELEGRAPH, TELEPHON E, .OR oinilswmr {up Roms.

. Patented May as, 1967. I

pole or.a solid metal pole. The imfproved arms 2. and 3 are in their simplified orm of integral construction and the arms 2 have to'loosely fitover the pole.- The arm-members 5' have a plurality ofo enings 6 therein to receive the pins or posts or the insulators or for Close to the s "have larger openings 7 extending there through for the accommodation of the boltssu orting the arms. ecap arm 3 differs in construction from the arms-2 :by having a central socket 8 to receive the upper end of the pole 1 and when the atter is of that structure embodying a other fastening devices.

' central brace device it is passed through the socket and secured,

or has its head bearing upon the upper surface of said socket. The cap arm 3 is also provided with a plurality of openings 9 to receive insulator pins or-othe'r fastemng means The arms .2, which may be of any number, are supported from the arm 3 by depending bolts or rods 10 secured to the said arm 3 and passing through the arms 2 and terminally held in the lowermost of. said latter arms. The arms as shown by Figs. 1., 2, 3 and 4 are composed entirely of' meta -The arms 2 and 3 may alsobe provided at the center with openin s 11 through which spikes may be driven to hold them on a wooden. pole if desired and prevent the arms fromturning, but the suspending feature heretofore described is the most important. The arms will all have the openings 1 1 therein and spikes may or may not be used as desired.

The suspending bolts or rods 10 may be of any preferred construction and of anylength, and in applying the several arms the suspension of the same, through the medium of the bolts or rods 10, willbe folund exceptionally convenient and comparatively inex pensive in the cost of erection of the .com- .1 plete pole and arms. s

Figs. 5 and 6 show arm provided with central metallic members f2 iaving opposite sockets 13 to receive wooden arms 14, but in this instance the same suspending feature will be carried out. Figs. 7 and 8 show cen-. tral socket or ring members 14 composed of duplicate; sections which are bolted through the medium of terminal flanges 15 to the arms 16. no

It will'be observed from thei'oregomg that the improved arm in its preferred and modi- .work of applying the same.

fied constructions is fully prepared without delay for attachment to a pole and reqliliiring but very" simple tools to' acoomplis the The principal or essential feature of the invention, however, is sustaining the weight of the arms from the upper end of the pole no matter what the nature of the said pole may be.

It will'be understood that changes in the proportions and dimensions may be adopted at will to aceommod ate various applications.

What I claim is:

1. The combination with a pole, of a plurality o'f cross-arms disposed thereon, one of the arms resting on the upper end of the pole, and means connecting the upper arm to the lower arms, the said lower arms being suspended i'rom the upper arm.

2. The combination with a pole, of a plurality of arms held thereon, one of the arms resting on the upper end of the pole and the remaining arms provided with intermediate openings tofit over the pole, and means for connecting the said arms.

3. The combination with a pole, of a cap arm having a socket fitted on the upper end of the pole, and other arms below the cap arm provided with openings in the center to fit over the pole, and means for suspending the arms below the cap arm from the latter. In testimony whereof, I. allix my signature in presence of two witnesses.

HENRY MfSCIPLE. Witnesses CrIAs. E. Bonn, S. C. HAnoREAvns.

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