US873634A - Concrete-tile mold. - Google Patents

Description

No. 873,634. 7 PATENTED 1330.10, 1907. W. s. THOMAS.

CONCRETE TILE MOLD.

' APPLICATION FILED MA-R.1s, 1907.

6 7 0/ n S m/m r ,V I A W I PATENT OFFICE.

WILLIAM S. THOMAS, OF EATON, COLORADO.

CONCRETE-TILE MOLD.

Specification of Letters Patent.

Patented Dec. 10, 1907.

Application filed March 18. 1907- Scrial No. 363-080.

T 0 all whom it may concern:

Be it known that I, W'ILLIAM S. THOMAS,

a citizen of the United States, residing at Eaton, in the county of l/Veld and State of Colorado, have invented a new and useful Ooncrete-Tile Mold, of which the following is a specification.

This invention relates to molds of that general class especially designed for use in the manufacture of open top tiles or drains for ditches, gutters or in the construction of sewers, culverts and the like.

The object of the invention is to provide a comparatively simple and inexpensive mold by means of which concrete open top tiles or drains may be conveniently and expeditiously manufactured.

A further object of the invention is to provide a sectional mold capable of being readily set up for use and quickly knocked down and compactly nested for transportation or shipment.

A'still further object of the invention is to generally im rove this class of devices so as to increase their utility, durability and efliciency.

Further objects and advantages will ap pear in the following description, it being understood that various changes in form, proportions and minor details of construction may be resorted to within the scope of the appended claims.

' In the accompanying drawings forming a part of this specification: Figure 1 is a perspective view of a tile or drain constructed in accordance with my invention. Fig. 2 is a transverse sectional view of the same. Fig. 3 is a longitudinal sectional view. Fig. 4 is a perspective view of the molded tile or drain. Fig. 5 is a similar view showing several of the drains coupled together.

Similar numerals of reference indicate corresponding parts in all of the figures of the drawings.

The improved mold forming the subject.

matter of the present invention includes an inner shell or jacket 6 and outer shell or jacket 5, said shells being substantially U shaped in cross section and formed of metal or other suitable material.

The outer shell 5 is provided with an an nular off set portion or shoulder 7 defining a depending flange 8, there being a similar shoulder 9 and flange 10 formed on the inner shell 6 and which in conjuncture with the flange and shoulder on the outer shell forms 1 a socket 11 on one end of the molded tile or product, indicated as a Whole at 12.

The inner and outer shells 5 and 6 are spaced apart to form an intermediate molding compartment 13 adapted to receive the cement, concrete or other plastic material, and formed on the longitudinal edges of the co-acting shells are dove tailed flanges 14 whichslidablyengage correspondinglyshaped grooves 15 formed in the adjacent face of a supporting'member or plate 16.

The plate 16 is of the same height as the shells 5 and 6 and is preferably formed with a central elongated opening or slot 17 so as to reduce the weight of the plate and permit the latter to be readily handled when assembling or disassembling the several parts comprising the mold.

The exterior wall of the inner shell 6 is provided with an annular bead or rib 18 which projects within the molding compartment 13 and forms a seating groove or recess 19 in the tile 12, said groove being adapted to receive a head gate or valve for cutting olf the flow of water through the tile, when several of said tiles are laid to form a drain or culvert.

inner shells 5 and 6 are fastened in position on the supporting member or frame 16 by introducing the dove tailed flanges 14 in the grooves 15 and sliding said shells longitudithe frame are in alinement with the adjacent ends of the shells. The mold is then placed in position on a table, bench or other suitable support and the cement, concrete or other plastic material shoveled or otherwise introduced in the molding compartment 13, said concrete being thoroughly tamped so as to produce a solid homogeneous tile.

In order to remove the tile it is merely necessary to slide the frame or plate 16 longitudinally of the shells when said shells may be moved laterally from engagement with the adjacent walls of the tile so that the lat ter may be conveniently carried to the drying racks until sufficiently hard for use.

If desired the tile may be reinforcedand strengthened by embedding a strip of Wire netting or suitable steel rods or wires in the concrete during the formation of the tile.

In forming a sewer, drain or culvert the tiles are placed in position in the ditch with the reduced end of one tile engaging the socket 11' of the adjacent tile and With the closed ends of the tiles resting on the bottom In molding the drains or tiles the outer and nally of the frame until the opposite ends of be readily understood.

of the ditch. The open top of the tile may be-covered with boards, fiat rocks, slabs or cement blocks or if desired the top of the drain may be arched over in any suitable manner. When boardsare used to form a closure for the drain suitable threaded bolts will be embedded in the opposite longitudinal edges of the several tiles for engagement with the boards or planks, the latter being held in position by means of clamping nuts engaging the threaded ends of the bolts, as will One or more of the tiles may be formed with a substantially U shaped opening 20 in one side wall thereof so as to permit the introduction of the meeting tile when it is desired to arrange two or more tiles at right angles to each other, as best shown in Fig. 5 of the drawings.

From the foregoing description it will be seen that there is provided an extremely simple, inexpensive and efficient device admirably adapted for the attainment of the ends in view.

Having thus described the invention what is claimed is: a

A mold including a vertically disposed supporting frame provided with spaced longitudinal dove tailed grooves, and substan- 1 tially U shaped open ended shells having their longitudinal edges provided with corresponding dove tailed flanges adapted to slidably-engage the grooves in the supporting frame and each provided at one end with a lateral offset, the inner shell being spaced from the outer shell to form an intermediate molding compartment and having its exterior walls provided withan intermediate circumferential rib extending laterally with? in the molding compartment and having its opposite ends terminating flush with the inner surface of the supporting frame, there being an elongated opening formed in the frame between the dove tailed flanges of the inner shell.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

WILLIAM S. THOMAS.

Witnesses:

CnAs. KRUGER, ANNIE PARROTT.

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