US1036162A - Concrete flume. - Google Patents

Description

S. L. STOVAL'L. CONCRETE FLUMB.

APPLICATION TILED MAY 8, 1912.

Patented Aug. 20, 1912.

INVENTOR.

517/771 L. Srowaum. BY 2 Z /M ATTORNEYJ GOLUI'IA ILANOGRAPH CO" WASHINO'M, D- C- FFQ SMITH L. sTovALL, or VISALIA, CALIFORNIA.

CONCRETE FLUME.

Specification of Letters Patent.

Patented Aug. 20, 1912.

Application filed. May 8, 1912. Serial No. 695,907.

T 0 all whom it may concern:

Be it known that I, SMITH L. STOVALL, a citizen of the United States, and a resident of Visalia, Tulare county, State of Cali fornia, have invented certain new and useful Improvements in Concrete Flumes, of which the following is a specification.

The invention relates to concrete fiumes for carrying water and especially to fiunies which are designed to carry large quantities of water.

The object of the invention is to provide a fiuine which is simpler of construction, cheaper and more durable than flumes which have been built heretofore.

Another object of the invention is to provide a concrete flume in which the various elements are molded in sections, and which when assembled produce joints which may be readily and efficiently sealed.

The invention possesses other advantageous features, which with the foregoing, will be set forth at length in the following description where I shall outline in full that form of embodiment of the invention which I have selected for illustration in the drawings accompanying and forming part of the present specification. The novelty of the invention will be included in the claims suc ceeding said description. From this it will be apparent that I do not limit myself to the showing made by such drawings and description, as I may adopt many variations within the scope of my invention as expressed in said claims.

Referring to the drawings .Figure l is a perspective view of a portion of an assem bled fiume constructed in accordance with my invention. Fig. 2 is a longitudinal vertical section taken through the floor of the flume.

The various elements forming the flume are formed of concrete, suitably reinforced, and are made in sections which, after having set, are transported to the place where the fiume is being built. The sections may be cast upon the ground where theflume is to be built but on account of the general rough nature of the country this procedure is not advisable.

The flume consists of the side members 2, which other than serving as sides for the flunie act as beams to carry the bottom and the water in the fiume. These side members 2 are provided with flanges 3 on their lower ends upon which rest the bottom slabs 4.

These floor slabs 4c are formed of a width equal to the width of the fiume and generally of a length less than their width. The side edges of these slabs't are beveled as seen at 5, so that when the slabs are assembled in the flume an angular channel is formed extending across the entire width of the flume.

The flume is supported upon the cross members 6 which are spaced apart a suitable distance, which are in turn sup orted by the posts 7 resting upon proper 'ootings 8 on the ground. These posts are also formed of concrete and are suitably braced by the cross rods 9. The side slabs 2 are of such length that they extend from one cross member 6 to the next; the joint between the edges of the slabs occurring substantially on the center line of the cross member. hen the side slabs are in position, the floor slabs are placed with their ends resting upon the flanges 3 on the side slabs.

The cross members 6 are longer than the width of the flume, so that the ends thereof project beyond the side slabs. The joint between the side slabs is sealed by means of a concrete web 12 which is cast in place after the side slabs have been placed in position, This web 12 is of sufiicient size so that the concrete may set to produce a tight joint and at the same time it acts as a brace for the side of the flume.

The joints between the floor slabs are made by filling the angular groove with concrete 13, which on account of the size of the groove, may set and form a tight; joint. The joint between the floor slabs and the side slabs is sealed by a bank 14 of concrete placed along the joint. The concrete for sealing the various joints is mixed after a section of the flume has been assembled and is then put in place insuch quantities that it may set properly and the construction is designed to permit of such quantities being used. Heretofore, it has been the general custom to attempt to seal joints between concrete structures by the use of grout, but the spacing at the joints has been so small that the small. amount of grout used could not set, and, therefore, could not effectively seal the joint. By my construction, however, this objectionable feature is eliminated by providing a fiume in which the joints are sealed by comparatively large masses of concrete, and at the same time maintaining a smooth unbroken surface within the fiume, and avoiding the use of all braces to support the flume proper.

I claim:

1. A concrete flume comprising a plurality of separately formed side slabs, an inturned flange on the bottom of each side slab and separately formed bottom slabs resting on said flanges.

2. A concrete flume comprising a plurality of supporting cross members, a plurality of separately formed side slabs each slab extending from the center line of one cross member to the center line of the next cross member, a bottom to said flume, and webs on the opposite ends of cross members adapted to seal the joints between the side I slabs.

3. In a concrete flume formed in. sections and then assembled, side slabs having inturned flanges on their lower ends, bottom slabs resting upon said flanges and having their side edges beveled, to form between the successive slabs an angular channel extending across the width of the flume, a filling of concrete in said channels and a bank of concrete in the angle between the bottom and the side.

4. In a concrete flume formed of separately formed sect-ions of concrete, a plurality of side slabs and a concrete web sealing the joints between the side slabs cast in place after the side slabs have been placed.

5. A concrete flume comprising supporting cross members, separately formed side slabs resting on said cross members with the end of the slab occurring substantially on the center line of said members, inwardly projecting flanges on the lower ends of said side slabs, a plurality of bottom slabs having their side edges beveled resting upon said flanges, a filling of newly mixed con crete between said edges, banks of newly mixed concrete between the bottom and the sides, and a web of newly mixed concrete overlying the joint between the side slabs.

6. A concrete flume comprising a plurality of separately formed side slabs, an inturned flange on the bottom of each side slab, separately formed bottom slabs resting on said flanges and a bank of concrete in the angle between the bottom and side.

In testimony whereof, I have hereunto set my hand at Visalia, this th day of April SMITH L. STOVALL. In presence of- L. H. GADSBY, D. II. GRUBB.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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