US1745577A - Mast - Google Patents

Description

Patented Feb.` 4f,` 1930 UNITEDSTATES PATENT OFFICE JOSEF KLovRzA, or `JUNDIAHY,siamizii.

MAST

Appiicatioii inea Juiy 12, i928, sriai No. 292,286, and in Brazn :rune 21, 1927.

This invention relates'to improvements in masts. f j f y,The object or" the .inventionis to make a rfniast, particularly .suitabley for supporting l 5 electric conductors of metallic elements to vide a mast of this character which can readl15 ily be assembled from a. plurality of relatively light weight elements and whiehafter assembly will presentresistance against eX- vcessiv'e strains actingy thereon in any. direction.k

Y 20 f With theseaiid numerous other objects in y view an embodiment of the invention yis de-v scribed in the following specification, in y which reference is made to the accompanyling dra-wings. f

In the drawings v j Fig. l is arfront elevation of the mast; Fig. 2 is an end elevation of the same, and f Fig. 3 is ahorizontal cross-section online .3 3 of Fig. 1, on a larger scale.

The improved mast, post or column is preferably made up oi four 'longitudinal members, preferably in the form of angle irons, vas indicated at l, 2, 3 and 4, and positioned relatively to eachother to form the outline of a truncated pyramid whose sides are at 'rightangles to each other. Theapices of ,the angle irons'constitute the edges ofthe pyramid, and the angleirons are spacedy in pairs, so that the pairs 1, `3 and 2, 4 respeclthe pyramid, vwhile the pairs v1, 2, and 3, 4

respectively constitute the narrow side of the pyramid, the last mentioned side being substantially oiuniform width over the entire heiglit'of the post. A

In order to maintain the corner members 1, 2, 8, 4 in suitable relation to each other,

" a web member 5 is locatedv in thev space confined by said corner members, said web memv'ber extending alternately and diagonally from each pair l, 2

of said corner members to the opposite pair 3, 4 and back again. This web member 5 is formed in the embodiment illustrated of a flat bar bent back and forth between the pair 3, 4 and the pair l, 2

of the corner members, the longitudinal distance between the recurring bends increasing from one end of the post towards the other.

secured to these flanges.

It will be noted that the space between the tips of the flanges of the angle irons l, rected towardsv each other is less than or of the web member 5. F

equal toy the width 2 or 3, 4, which are di- I claim A mast comprising four vertical angle irons spaced from each other and a single vflat bar bent back and yforth and forming a continuous diagonal webv connecting the .spaced angle irons in pairs with each other,

said angle irons forming the corners of a mast rectangular in cross section and their In witness whereo tively constitute the two converging sides of f I alii): my signature. JOSEF KLOVRZAr

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