US1182872A - Reinforced-concrete culvert. - Google Patents

Description

L H; DARRGW. REINFORCED CONCRETE GbLVERT.y

APPLICATWN FILED JUNE I9. i915.

Patent May 9, 1916.

gg Mug JOHN HEN'ERSGN DARROW', GF RBD LGLDGE, MONTANA.

RENFORCED-CONRETE CULVEET.

A i Specification of Letters Patent.

resented new aisee.

Application led .T une 19, 1915. Serial No. 35,607.

Totali 107mm it may concern Be it known that I, JOHN H. DARRow, a. citizen of the United States, and a resident of Red Lodge, in the county of Carbon and State of Montana, have invented a new and Improved Reinforced-Concrete Culvert, of which the following is a full, clear, and exact description.

My invention relates to culverts of the rsectional type, and has reference more particularly to reinforced-concrete culverts in which the section joints are staggered.

The object of the invention is to provide a simple, inexpensive, and efhcient culvert formed of upper and lower concrete sections, the joints of which are staggered and the reinforcement of which sections is utilized as means for detachably securing the upper and lower sections.

"With the above and other objects in View, the nature of which will more fully appear; as the description proceeds, the invention consists in the novel construction, combination and arrangement of parts as herein fully described, illustrated and claimed.

ln the accompanying drawings, forming part or' the application, similar' characters of reference indicate corresponding parts in all the views.

Figure l is a side elevation of culvert sections partly sectionalized to show the details oi' construction; Fig. 2 is a cross section through the culvert on line 2 2, Fig. l; and Fig'. 3 is a perspective view of the culvert sections showing the upper sections removed to illustrate the reinforcing means which serve the purpose of a locking device for the sections.

Referring to the drawings, each of the culvert sections is preferably in the shape of a il channel 5 reinforced adjacent the ends by U-shaped irons (i, the ends 7 of which project out ot the longitudinal edges ot' the sections a length suiiicient to project through the sides ot the cooperating sections. The longitudinal edges oi each section have a central depression 8, the ends of which depression are preferably beveled, as shown at i). and the length oi which depression is siihstantially twice the length of the end portion l0 ot each section, so that two portions end to end will have their end v portions l() at the longitudinal edge to fit snugly into the recess S of the underlying' or supcrposed section. Each oi' the sections, in addition to being reinforced by the U-shaped irons 6, is reinforced by tubular members ll located in the sides of the channeled section within the recesses S. These tubular members form sockets for the end 7 of the U iron 6. The ends of the tubular sections ll, at the bottom of the sections, lie 1n a recess l2 whereinto the threaded eX- tremity of the end 7 projects to receive e.

nut 13 which bears on to the end of thetubular member ll and serves as a washed 'for said nut in addition to being a socket for the end 7. i

It will be noted from Figs. 2 and 3 that when the upper and lower sections are .in-

terconnected the joints of the sections are.

staggered and each of the recesses 8 ot each section engages the end projections 10 of the sections cooperating therewith. K This engagement of the recesses with the"end projections prevents any longitudinal displaceent of the sections relative to one another, which tendency is further yresisted lo 1 the locking means formed by the nuts 13 at the ends of the U-shapedirons 6. A lateral displacement of the sections is prevented by said reinforcingmembers 6 and l1 which. form the means for locking the sections together.

l/llhile 1T have described the principle of operation, together with the device which l.;

now consider to be the best embodiment thereof, I desire to have it understood that the device shown is merely illustrative and that such changes may be made as are with; in the scope or the appended claims.

1. A reintorced-concrete` culvert consisting of a plurality of sections, each of channeled cross section, U-shaped irons reinforcing the sections at the ends thereof with. the ends of the irons projecting above 'the longitudinal edges, each or" said sections having a depression in the longitudinal edges thereof between the projecting ends orf the U-shaped irons, tubular members in the side of the channeled member within the recess ot' the longitudinal edges for engaging the projecting portions of the il irons or" a cooperating section, and locking means associated with the projecting ends of the U- edges thereof, each of said sections having a recess in the longitudinal edges thereof between the members, tubular members in the sides of the sections within the recess and projectingthrough the bottom pf the section for engaging the projecting ends of the U ironof a coperating section, said sections having recesses at the bottom thereof where the tubular members project, and locking means associated with the ends of the reinforcing members.

3. A reinforced-concrete culvert consisting of a plurality of cooperating sections each in the shape of a U-shapedl channel, U-shaped irons reinforcing the sections at the ends thereof with the ends of the irons projecting above the longitudinal edges of the sections, each of said sections having a recess in each of the lon itudinal edges thereof between the projecting ends of the irons, tubular members in each side of the l sections located within the recess of the sides, said tubular member forming sockets for the projecting ends of the irons, said tubular members projecting through the bottom of the sections, said sections having a recess at the bottom thereof where the tubular members project, and a nut threaded on to the projecting ends of the irons.

4. A reinforced-concrete culvert consisting of a plurality of sections each of channeled cross section, reinforcing bars for said sections projecting edges ofithc sec ions, forcing the secti ns jecting parts of operatin sections, and locking means associated with the projecting ends of the bars.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN HENDERSON DARRow.

Witnesses: L. C. BABoooK -I-I. K. SWEENEY.

tubular members reinfor engaging the' prothe reinforcing bars of col above the longitudinal j

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