US1070382A - Culvert. - Google Patents

Description

F. G. BRADBURY.

GULVERT.

APPLIGATION I'ILED NOV. 30, 1909.

Patented Aug. 12, 1913.

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FREDERICK G. BRADBURY, OF ST. PAUL, MINNESOTA.

CULVERT.

Specification of Letters Patent.

Application filed November 30, 1909. Serial No. 530,639.

To all wom z't may concern Be it known that I, FREDERIOK G. BRAD- BURY, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented a new and useful Improvement in Culverts of which the following is a specification.

My invention relates to improvements in culverts and more particularly although not exclusively to that class which is made of reinforced metal. r

The primary Object is to provide below the body of the culvert a drain. In a reinforeed culvert made of corrugated netal this drain is adapted to conduct water or other liquid longitudinally out of the culvert 'from the transverse corrugations. With this invention substantially the entire body may be corrugated or otherwise reinforced while with prior devices wherein water does not collect in the corrugations, the lower half is sm`ooth and weaker in construction than the upper corrugated portion. Such prior constructions are not satisfactory because they are not strong and will not retain their shape. With entirely co-rrugated culverts water collects in the lower portions of the corrugations, rusts the metal and the life of the culvert is thus very much shortened.

The longitudinal joints between the parts of culverts heretofore used are frequently broken due to expansion and contraction of the metal during wide changes of temperature when the culvert is embedded in the ground.

The above objections and others which will appear to those familiar with this art are entirely overcome by this invention in a simple, effective and inexpensive manner. The whirling motion set up in the water in former constructions which tends to retard its longitudinal passage, can only be entirely overcome by the use of the drain.

In the accompanying drawings forming part of this specification, Figure 1 is a side view partly in section of a detail of my invention and Fig. 2 is a cross section taken upon the line X-X of Fig. 1.

In the drawings A represents the tube or body portion of my culvert made out of thin metal or other suitable material and formed with transverse corrugations D which substantially encircle the entire tubular portion. Formed below the tube A is a longitudinal drain or gutter B made out of a longitudinal series of tiles G composed of vitrifiecl 'when it is assembled for use.

Clay, cement or other suitable material such for instance as is used in constructing drain tiles. The tube or body of the culvert may be :tormed along its longitudinal edges with flat downwardly projecting and outwardly turned hook portions 2 and 3 which are spaced later-ally apart and engage upwardly projecting inturned shoulders et along the sides of the tiles. Lugs 5 in the trough of the tiles engage the hooks 2 and 3 and prevent them from becoming disengaged transversely from the shoulder portions 4. To connect or disconnect the tiles from the tube of the culvert they are fixed longitudinally upon the hooks :2 and 3. The ends of the tiles may be oonnected by an overlapping joint 6 or in any other suitable manner desired. This construction forms a longitudinally interlocking oint which enables the tube to be completed without the use of tools Two sections 7 and 8 of the body or tube may be joined together by the joint 9 and rivets 10. This joint between the ends of the section may be of any suitable or well known construction now employed. The gutter located below the corrugations D receives any water that may tend to collect therein and conducts it longitudinally away so that no water will stand in the corrugations or drain and rustthe metal. The corrugations in the tube and the drain formed below the tube do not decrease the strength of the culvert. The mode of joining the drain and tube also compensates for eXpansion and contraction of the tube due to changes of temperature and overco-nes all objections to rivets or bolts sheering off in cold weather as in prior devices. The drain also permits longitudinal expansion and contraction ot the body.

For shipping purposes the tubes may be laid out fiat or a number of tubes nested together and the culvert then assembled where it is to be used by securing the drain to the body without the use of tools.

The construction of drain may be changed and modified within the spirit of my invention and the tube of the culvert may also be of any suitable design or construction desired, such as circular, arched, reinforced or plain without reintorcements. The joints between the tube and drain may also be changed and modified within the scope of the following claims.

This invention is clearly adaptable for conduits for electrical conductors, drain tiles Patented Aug. is, rais;

and for other purposes and where the term culvert is used I mean it to include conduits, drain tiles or any other equivalent de- Vice. The term tube is used in the above description as meaning the body portion of the device.

In accorclance with the patent statutes I have described the principles of operation of my invention together with the apparatus which I now Consider to represent the best embodiment thereof but I desire to have it understood that the construction shown is only illustrative and that the invention can be carried out by other means and applied to uses other than those above set forth within the scope of the following claims.

Having described my invention, what I claim as new and desire to protect by Letters Patent is 1. A culvert, consisting` of a transversely corrugated tube, and a tile duct below said tube having its edges detachably interloched with edges of said tube.

2. 'A culvert, consisting` of a tube, and a tile duct below said tube having its edges detachably interlocked with edges of said tube.

3. A culvert having a transversely reinforced metal body and a non-corrodible duct associated with and into which the contents of the interstices in said body drain, said duc-t consisting of a series of tiles having their ends overlapping each other and their side edges detachably joined to side edges of said body.

4:. A culvert having a body and a noncorrodible tile drain duct secured to said body by means of a longitudinal interlocking separable joint between said members, for the purposes specified.

5. In a device of the class set forth, a tile duct formed with sides extending up and turned in to form engagements spaced apart and adapted to hold portions of a culvert and stops adjacent said engagements adapted to prevent the portions of the culvert which are held by said engagements, from lateral displacement, said parts of said tile being adapted to permit said tile to move longitudinally into and out of engagement with the engaging portions of said culvert.

6. A culvert consisting of a metal body having a pair of lower edges spaced apart and a non-corrodible duct interposed between said lower edges.

7. A culvert, consisting of a gutter tile and a metal body over said tile having lower edges inter connected with the side edges of said tile to complete an inclosure.

8. A culvert, consisting of a series of tiles longitudinally disposed and a metal body having lower edges spaced apart and inter connected with the side edges of said tiles to complete an inclosure.

9. A culvert, having an inclosing wall a segment of which is of metal and the remainder a non-corrodible duct said parts being inter joined laterally to circumscribe an inclosure.

10. A culvert consisting of a metal plate adapted to be bent into an upper portion of an inclosure, and a non-corrodible gutter detachably inserted to complete said inclosure.

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

FREDERICK G. BRADBURY.

Witnesses:

J. T. AVERY, H. L. FIscHER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, 'Washington, D. C.

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