US1681572A - Truss structure - Google Patents

Description

Aug. 21, 1928. Y 1,681,572

- C. L. EWING TRUSS STRUCTURE Filed March 14, 1928 Patented Aug. 21, 1928.

a v 1,681,572 UNITED'STATES PATENTQOFFICE.

CLEMENT L. EWING, or JEROMEVILLE, OHIO.

TRUSS STRUCTURE.

Application filed March 14, 1928. Serial No. 261,645.

ments in barn frai'nc truss structures, particularly of the class described inmy application filed June 10, 1925, Serial N umber 36.270 now )endina and its irinciial objects are, first to provide a barn frame truss of gothic and semi-grothie type suitable for wider buildings and heavier roofs than usual secondly, to provide improved means for reenforcing' the curved portion of each post and to stiffen and strengthen the entire postof each frame truss, as a unitary structure from bottom to top thereof, and so prevent the sagging of the roof, and also prevent the walls of the. building from spreading apart by internal pressure against them. My invention is illustrated by the accompanying drawings in which the figure is a side view of'the entire bent made up of a pair of supporting posts which are alike in all respects, only one of which need be identified by reference indicia "embodying my invention, the pair of posts being secured together at the apex of the arch by a suitable metal strap X, or other similar means, and at their bottoms by a base-plate Y, or other suitable means, for holding them solidly in position.

The arched post comprises a vertical portion A for the side wall of the building, and a curved portion B for the roof thereof. The two portions are solidly united together as a unitary structure continuous from bot tom of the post to the comb of the roof, the curved portion being; formed by fastening together a. pair of laminated members upon intervening spacer blocks a, a, spaced apart between them in the contour of the arch as in my said former invention. The arched portion is mainly supported the sloping post C, which is secured by suitable means to the lower end of the post A, and to one of the said spacer blocks 052, at its upper end 0, by a threaded bolt o passed thru said spacer block and said pair'of laminated members at a point at or near the center of said curved portion of the post B. A short lateral plate E is secured to the post A at or near its junction with the lower end of the curved portion thereof by a threaded bolt 6* passed thru the post horizontally and to said sloping post C at or near the middle thereof by a threaded bolt (Z. If desired, said plate E may be doubled, alike'on opposite sides of the posts ,A, Q, for a ded. streng h At a point at or near the junction of said plates E with the sloping post G is out notch c therein, and a tie-beam I), mounted therein and secured thereto by threaded bolt (5 passedthru both members, extends di agonally therefrom to a point under a spacer block a" near the upper end of the curved portion B, and is firmly secured thereto by a threaded bolt (Z passed. thru said spacer blOClT and laminated membersthereon, and the adjacent upper end of said diagonal tiebeam D. A series of struts areinterposcd between said curved portion and said diagonal tie-beam D, regularly spaced apart and in pairs secured together and to said beam by bolts (t and at their outer ends, secured in pairs together. and to adjacent spacer blocks in the curved portion, by bolts Z) passed thru said blocks, respectively, said struts'beinp; thus secured together endwise in bridge formation. Said struts are further secured at their intersections with the sloping post C by bolts E passed thru both members. Y 7

. By such construction the curvature of the post is maintained with greater strength and rigidity than has been possible heretofore, and the roof and side portions A, B, of the post are able to prevent bothsagging of the roof-by the weight thereof and spreading apart of the bent by internal pressure when the truss structure is completed by the.

junction of the pair of supporting posts, asaforesaid. v

If desired, for additional strength of the arch, anintermcdiate tie-beam F may be interposed between the tie-beam D and the curved portion l) of the post, and the upper pOItlOll of the sloping post- C, as shown in Fig. 1;; To this end an additional notch 0 is out in the sloping post at a point be tween the notch 0 and the upper end of the sloping post, and said tie-beam F secured in said notch and to a spaced block a midway between spacer blocks a and ta in the same manner as the tie-beam D is secured, and is further secured at its several intersections with the struts g by bolts j, substantially as shown.

If desired for still greater strength, the several struts may be doubled, and secured together in like manner as hereinbefore stated. lVhen a truss structure is completed on a floor space, it may be raised to position as a bent in the building, and the several bents secured together by longitudinal raft,

rs, the ends of which are shown in section, as at R, against the several adjacent ends of the spacer blocks, and the roof laid on said rafters. T

hat I claim is 1. A barn frame truss structure compristherein, a horizontal beam solidly attached to said sloping post at or near the middle thereof, and to the arch post at a point opposite thereto, a seat in said sloping post at or near the terminus of said horizontal beam, a tie-beam, its lower end securedin said seat, and its upper end secured to said curved portion opposite a spacer block therein near the upper end of said portion, and a series of diagonal struts spaced apart and spanning the space between said curved portion and said tie beam, said struts arranged and connected endwise in pairs in V-shape'd bridge formation, and firmly secured to gether and to said tie-beam in spaced rela tion, respectively, and secured together and to adjacent spacer blocks in said curved portion, and to said sloping post where they cross the same, substantially as set forth.

2. A barn frame truss structure, compris-' ing in combination, a pair of opposite posts, each post having a straight lower portion and an upper portion curved inwardly in gothic contour, said portions united to form a unitary structure, a series of spacer blocks spaced apart between a pair of laminated members in said upper portion, a sloping post attached solidly at its lower end to said arch post near its lower end, and at its upper end to the middle of said curved portion, a horizontal beam attached to said sloping post at or near the middle thereof and to said arch post at a point opposite thereto, a seat in said sloping post opposite the terminus of said horizontal beam, a tiebeam secured in said seat at its lower end, and atits upper end secured to said curved portion near the upper end thereof, a seat in said sloping post intermediate the upper end thereof and the seat for said tie-beam, a secondary tie-beam secured in said intermediate seat, and at its upper end secured to said curved portion at a point mid-way between the upper terminus of said sloping post and of said longer tie-beam, and a series of diagonal struts between said curved portion and said long tie-beam and spaced apart thereon, said struts connected endwise in pairs and secured together in V-shaped bridge formation, and secured to said curved portion and said tie beam, and to said I sloping post and intermediate tie-beam at their intersections therewith, respectively, substantially as setvforth. I

3. A barn frame truss structure having in combination, a pair of opposite arched posts of gothic curvature united together, said posts embodying a unitary structure continuous from thebase to the apex of the arch, a slopin'gpost solidly attached at its lower end to said arched post near its lower end, and at its upper end to said arched post at or near the middle of the curved portion thereof, a horizontal beam attached to said sloping post at or near the middle thereof and to said arched post at a point opposite thereto, a tie-beam seated in said sloping post ata point opposite the inner terminus of said horizontal beam, and attacheds.to said arched post near' the upper end thereof, and a series of strutsextending from the tie-beam to the curved portion of said arched post, said struts arranged in pairs in V-shaped bridge formation, and secured together and to said post and tiebeam respectively, and to said sloping post where they intersect the same, substantially as set forth.

i Q L. EWING,

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