US868879A - Timber-roof structure. - Google Patents

Description

'PATENTED OCT'ZZ. 1907.

E. MOLLOY. TIMBER ROOF STRUCTURE.

APPLICATION FILED SEPT. '7. 1R06.

IN Rw ...mkv

W/TNESSES W. CMwL-/t. c.

UNITED STATES EDMOND MOLLOY, OF PHILADELPHIA, PENNSYLVANIA.

' TIMBER-'Roon STRUCTURE.

Specification of Letters Patentt Patented oct. 22, 1907.

Application filed September 7,1906. Serial No. 333,605.

United States Patent No. 460,981, granted to me onl October 13, 189i.

The object of the invention is to increase the strength and stability of the structure, whereby it maybe em.

ployed to span walls placed a great distance apart; and,-

furtliermore, to distribute the weight of the structure upon the supportinf j walls, thus .securing increased strength to .the structure at the lines where itengages with said walls.

To the accompl `:ment of these ends, the present invention conteml lates a. truss having a plurality of arched or bowed members disposed one belowv the other, each mem er extending from side toside ofl the roof stkructurc, a .tringer at the base of the arch and composed of a pi ili'ty of pieces,'in' contact with each other, or substant. lly so, each piece of the stringer likewise extending .ntirely across the structure, and:- struts disposed diagonally or vertically, or both, uniting the aforesaid bowed members and the Stringer.

The invention further consists of bracing saddles at or between the end portions of the roof truss and the supporting walls upon which the roof structure rests. Each saddle occupies the angle or corner between the underside of the truss and the vertical face of the wall, and sa-id saddle comprises members at an angle to each other, and appropriate diagonal struts. Said members of the saddle engage respectively .with the bottom face oi the truss Stringer andthe vertical face of the wall, and the aforesaid members are united by diagonal struts and by cross braces. Each saddle is arranged to distribute a part oi the weight of the roof truss on the Wall, and it contributes materially to the strength of the roof structure.

Practical embodiments'of the present invention are shown by the accompanying drawings, wherein,

Figure l is a vertical cross-section, with pants in elevation, of my new timber root structure; and Fig. 2 is a similar view illustrating a modified construction.

The timber roof structureof the present invention consists of an outer cover A, and a plurality of trusses B one of said trusses being represented by Fig. 1 of the drawings. Said trusses are spaced at suitable intervals, and they are arranged cross the outer cover A, for supporting the same' on the walls C, C, or'their equivalents, such as columns, posts, or a framework around an inclosure which is designed to be roofed by the structure of this invention.

In the embodiment oi the invention shown by Big. 1

or' the drawings, the truss B consists of a plurality of bowed or arclied members D, D, a Stringer E, and a. proper number o diagonal struts or braces F. The arched or bowed member D is'of less radius than the bowed or arched member D, but4 both. arched members extend the full width of the structure, from side to side thereof. Each arched .member may consist of a single piece or number of pieces built up to produce the complete member. The member D is arranged about midway between the member D, and the Stringer E, the end portions of said member D extendingto the points Where the member D, and the stringerE,join or meet one another. The stringer E extends in a straight line across the roof structure, at the base line thereof. Said stringer consists essentially f a. plural# ity of `pieces e, e', which extend. thefull width othe structure, said pieces e, e being in contact or engagement one with the other throughout the width of thel arch. The struts F extend in diagonal 1ines,and from -the arched member 1),' to the Stringer E, the struts lcrossing the arched member D,'a1`1d said struts fastened rigidly to the parts of the truss in any suitable or appropriate way.

- For the purpose of affording substantial strength to the truss at the points where it is supported by the walls l or columns-C, I employ saddles G, which occupy the angles or corners formed by the supporting walls and the truss o the roof structure. Each saddle consists of members g, g4, and struts h, h. The members g, g, are arranged at an angle to each other, and said members are united by the diagonal st rut h, extending between the members, so as to join the member g, near, the inner end there'oi andthe member gnear the lower end thereof.

The saddle is mounted or arranged for the member g to engage with 'the underside of the stringer E, ornb. i

ing a part of the truss, while the upright member g of' said saddle engages with the Vinner vertical face oi one. wall or column C. In practice, I-prefer to make the horiaontal member g of the saddle long enough to rest upon the wall or col imn,'so that the truss will rest directly on said saddle, as shown; Thesaddle is,-

strengthened by the struts'h, which extend at anangle to the diagonal strut h, and it is, also, preferred to extend these struts h across the Stringer E, and one or more bowed members D, D', vofthe truss. By employing a Stringer E, composedofa pluralityof members which extend the full width of the truss, and by using one or more arched members D', which, "also, extend the full width of the truss, I am able to-materially strengthen the truss, and construct it oisuch dimer 1f A sionsthat the roof -structurewill -span'wide spaces between the walls tir-columns C.

-The saddles G lare important elementsof AthebnevirI roof structure, and they serve to distribute the weight of the truss, and the roof-structure, on the walls-o1;A

vcn

columns C, besides adding materially to the strength of the structure at the places Where.thejirussl meets or r'ests on said walls or'columns. l

The roof cover A may 1be of any suitable construction lsid directly on the uppermost arched member D, or suitable spacing strips rz, may be placed between said cover and the arched member D.- A 4 In the'embodimentof the inyentiori shown byFig. 2

of the drawingsy the truss Bf is substantially the same in construction ss the truss shown in Fig.v 1, and I, also, :employ the saddles G, in the angles or corners' between the truss, 'andthe supporting Walls or columns G. The

v truss sh own by Fig. 2, however, consists of three arched members D', ADQD", the member D -being oi greaterradius thar the member D', andl the member IDvYib-eirig .of greater-.radius than the .member D.. The stringer may consist of onelonanumber of pieces, andcon ,the

V member D is secured the outer coverA.' 'llie's'tringerv and the several members oi thetruss areunited vbythe' diegene! struts F,l which' extend theullheig'ht of the truss, and the members D', *D25 are.. additionally strengthened or reinforced by Vthe shorte struts-F.

Each saddle G. consstsoi 'the members-gig', and the i diagonal stmt h, rbmi prefer msmmiren th'issa'dsie in the extremely wide arch shownby Fig. 2 by'employ` ing'tlie additional braces hf, h3. The-saddle, shown by Fig.A 2f, operates'to distribute tireur/eightof the roof structure ontlie walls-or columns C inthe same' vmarinessts .the saddles` inthe construction ofV The construction of the truss iin'FigLjZ, however, per-l mits the roof structure to span xtremelywde spaces l between the wallsor columns C,

1 Having thus described my ivention 'whatI claim as new and desire to secure by Letters Patent is .1. In a timberroot structure, a supporting wall, a r'o'oi truss, a.' saddle coperatig 'with the wail andthe truss tou distributing the weight of the latter 'on the wall, and diag# r o'nal struts coperating with said truss and saidsaddle.'

- 2. Inl a timber. roof structure, a device of theclass described, a roof truss, a supportingV wall, a weight distributng saddle in the corner .formed by 'the' truss and the walg and diagonal 'struts overlappinghe truss' und said'V 'saddle for bracing the same.

' 4. In a device of the c lassdes.ci ibed,a.rot trussl a wall. and fa saddle having membersat an'angle to o ne another, l'

and diagonal struts connectingsid members. A f 5. Ima device of the class described,'a roof truss, .-a

wall; yafsarddle .in th, angle or 4corner: formed by thevnrall I 55 and the. truss, and struts overlapplngthe trusssnd said f saddle. V

"41u testimony virhered( I --Iiavve` signed name vte this jspeciiicatio-n-4 in the presence' of-twd subscribing witnesses.

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