US1179533A - Pole. - Google Patents

Description

M. LACHMAN.

POLE.

APPLICATION FILED APR. 20. 1910.

1,179,533. Patented Apr. 18, 1916.

as FL able forms of the invention,

a orr ioa.

MAURICE -'riaonman,,or new roan, N. Y.

POLE.

Specification of Letters Patent.

. Patented Apr. 18, 1916.

Application filed April '20, 191.0. SeriaTNo. 5565473 To all whom it may concern: Be it known that, I, MAURICE LAoHMAN, a citizen of the. United States, and a resident of the city of New York, county of New York, and State of New York, have invented certain new and useful Improvements in Poles, of which the following is a specification.

' This invention has particular reference to poles such as are employed, for example, to carry insulators and conducting wires employed in electrical systems of lighting, telegraphy, telephony, and transportation, and it aims to. provide for this and other useful purposes a pole which canbe inexpensively produced, is of maximum durability, and light in we1ght.' This purpose is I well secured by the constructions illustrated 1n the accompanying drawings to exemplify what is at present regarded as very desirbut to the details of which the invention, in its broader aspects, is not-restricted.

In said drawings: Figure 1 is a side elevation of'a pole embodying my improvements. Fig. 2 isa similarlview of the pole, viewed from the side at right angles to that from which Fig. 1 is seen. Fig. 3 is a cross sec- ,tion on a largerscale, embodying a form in than Fig. 3, showin as which the elementsare joined by -spot welding the same together, showing the elements assembled before welding- Fig. 4 is a cross sectional view, on a smaller scale the appearance of the elements after they ave been welded' Fig. 5 is a view similar to Fig. 3 elements formed for rib welding and assembled. Fig. 6 is a view of a vertical member formed with a'ridge or rib for ridge welding. Fig. 7 is a viewof a transverse-member also formed with a rib. Fig. 8 is a View 1 of the junction of such members. Fig. 9 1s a view similar to Fig. 4 of formed of members rib-welded together. Fig. 10 is a plan view, showing the pole provided with lateral arms.

Similar characters of reference denote corresponding parts in the several views.

The pole herein illustrated contains vertical'main supporting members A, shown as flanged bars lattice members B. The lattice members are connected and braced by flat welded to the flat faces of the vertical bars to forma substantially integral structure,

The lattice memwhich is light and strong.

diagonally and in bers B preferably extend lation as shown,

showing the apart upon all ends of the elements 15.

the pole when welded to a vertical bar in substantially'the same'horizontal plane. These form some of the important features of the invention, others of which will'hereinafter appear.

There are preferably four of the vertical I flanged bars A-employed, disposed at spective corners of the pole, here shown as approximately square in cross section, but it will be understood that the pole may be of any other shape, as triangular,'hexagonal, octagonal, or circular, for example. Each bar is preferably of L-shape in cross section, though other suitable shapes of flanged bars may be employed. While the bars A are referred to as being vertical, they are erable part of the length of the pole, which materially contributes to the strength of the pole. Furthermore, there is preferably employed, a series of transverse strips 20, which are arranged at suitable distances or some of the sides of the with their ends adjacent to pole, preferably 'Wliateverthe relative disposition of the members 'referredto may be in other respects,'it is important that they be such that they ,may be electrically welded together at the places of contact, so as to provide an economically-produced skeleton structure of strength adapted to the purpose for which the pole is designed.

Two forms, adapted-for spot welding and' ridge welding respectively, are shown in the accompanying drawings. In the first of these, shown in Fig. 3,.e1ther or both memthe rethroughout all or a consid-' such relation to each other thatthey will be here at the placesof contactareformed with w an appropriate number of orotuberances, as

25, arranged therein at the place. or places where it is to intersect, or be intersected by another member. These protuberances form projections from the bodies of thhmembers,

- the members, I In the other and through them the welding current is' hers is retained, but said elements instead. of

- venient a the welding operation,

that this side of the .t1on a is outward'and the other portion a r portion being simple protuberances are ribs extendv mg longitudinally oftheir respective members, or-either one of the same and-preferably continuous throughout the length therepearance of the parts after the welding has been eflected and the other figures showing the parts in assembled and non-assembled form, prior to the welding operation. It

- will be noted that the pro ectlons are flat-' 2O tened at the welded places, whether such projections be simple protuberancgs (see Fig. 4) or ribs (see Fig. 9).

The pole may be utilized to support an object which calls for one or morelateral supports there rom.- An example of this is illustrated in the pole shown for electrical conductors, as telegraph or telephone poles,

' having arms projecting laterally therefrom.

In the illustrated form of these arms, and are Welded in the manner already described, to the flat faces of the vertical me bers. Inclined braces 24 may be employ h the invention 'as' supports for these arms, and these braces should be welded, as described with reference tolthe other members, to the flat faces of the vertical members and arms. The arms are shown asarrangedupon opposite sides of the poles, with their ends converging and theiinsulators mayjbe disposed therein in line with each as referred. Y Y

ttention is called to the fact that the relative disposition of the members as shown in the drawings is such as to'permit concess to all the intersecting portions by the e ectrodes or terminals employed in pole to be supported. by the table used in welding and to. be moved along said table as the welding progresses. Each longitudinal bar is arranged with its open side outward,

and in position to engagethe edge of the table upon which the welding is done. Thus, it will be .noted upon reference to Fig. 1

pole shows the flang bars each arranged with the edge of one as a, presented outward and the face of its other portion, a, presented toward the inside of the pole: while viewed from the side seen in Fig. 2, the face of the first porextends toward at th Figs.

the corresponding member e opposite side of the pole." (See also 3 and 5.} This particular arrangethe intersecting surfaces of whereas if the members This form is shown in Figs. 5, 6, 7, 8 and 9, the last named figure showing the ap designated 23, have flat faces 1 other or in-staggered relation,

and to permit the board A towers readily suggested to ment is essential to a convenient and economical welding reason thateach bar presents a surface which may rest on the table and receive the lower terminals or electrodes, with nothing to obstruct the welding operation and the movement of the bar longitudinally on the table step by I all of the unctions are readily accessible to the terminals of the welding apparatus; .A' were otherwise arranged, that is,if\theywere so disposed as to present their closed sides outward at the corners of the posts, instead of their open sides as herein shown, the junctions of the parts together, -forrthe i step as the welding progresses and would be practically inaccessible and the weldmg operation could not be rapidly proceeded with on the welding table operation would would be substantially prohibitive.v

The base of the pole, i f desired, may be provided with a plate or other suitable foundation element, as 30, and the top thereof similarly may be provided with a'plate or other suitable cap-element 31. From the foregoing my pole will be readily seen and it will be observed thatI have provided one which while comparatively light and may be inexpensively produced, yet has the utmost and the welding be produced at a cost which i the construction of strength and durability. Being of skeleton structure it may be easily transported and will withstand wind stresses as well as all other strains and stresses to which it may be subjected. The parts being welded together become integral, and the weakening due-to rivets is avoided, and the welding operation may be performed at less cost than that incident to riveting. It is practical. to form the device either at the place ofuse, or at a factory, and in the latter event it may beshipped at a comparatively normal cost.

While the invention hasbeen referred to as a pole and reference has been made to poles usedfor telegraph, telephone, electric lighting and trolley wires, yet it is to be understood that the term pole"" is.used in a generic sense'inthe present case and that it is intended to include therein'devices more or less analogous to poles though ordinarily given other names in view of particular uses to which they are put, among which may be mentioned, masts?! and elsewhereflfor various purposes, staffs used for flags and other purposes, columns for supporting floors or other things in building and engineering arts, used for a variety of purposes in Jvarious arts, and in fact, a great many other things having specific names which need not be referred ,to herein, but to which the applicability of the present inventionwill be" those familiar with such things. Moreover, it may be'used as in pairs projecting in the same plane inwardly and outwardly from each other, and connecting members welded to the outer faces of each longitudinal element, the included angle faces thereof being left entirely unobstructed;

3. A. metal device of the character described comprising a plurality of flanged longitudinal elements, the flanges thereof being disposed substantially at right angles to each other, said elements being arranged in pairs, the included angle of each longitudinal element being outwardly disposed and flanges of each oppositely disposed pair projecting 1n the same plane and connecting members welded to the outer faces of the flanges of each longitudinal element, the included angle faces thereof being left entirely unobstructed.

In witness whereof I have hereunto set my hand at city of N. Y., county of New York, and State of New York, this 2nd day of April 1910.

MAURICE LACHMAN. In presence of- JOSEPH A. KEHOE, LAURENCE T. LACHMAN.

a beam for supporting floors or other elements of buildings or other structures, or it may be used horizontally or in other position, as well as vertically. In short, it is my purpose to apply my present invention to various uses to which it is applicable, and these uses whether herein expressed or not are intended to be covered thereby.

Having now described the invention, what I believe to be new and desire to secure by Letters Patent, is:

1. A metal device of the character described comprising a plurality of flanged longitudinally arranged elements of angular cross-section, said elements being arranged in pairs, the included angle of each longitudinal element being outwardly disposed, connecting members welded to the outer faces of the longitudinal elements, the included angle faces of the longitudinal elements being left entirely unobstructed.

2. A metal device of the character described, comprising a plurality of flanged longitudinal elements of angular cross-section, said elements being arranged in pairs, the included angle of each longitudinal element being outwardly disposed, the flanges

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