US2077750A - Composite vitreous tile and concrete stave - Google Patents

Description

April 20, 1937. P. c. FISH 2,0?7 ,750

COMPOSITE VITREOUS TILE AND CONCRETE STAVE Original Filed Aug. 1, 1931 INVENTOR Perc C. FAY/1 avg/ 2 E A TORNEYj Patented Apr. 20, 1937 COMPOSITE VITREOUS TILE ANDUON-J' CRETE STAVE Percy 0. Fish, Kalamazoo, Mich.

Original application August 1, 1931, Serial No. 554,430. Divided and this application July 17,

1935, Serial No. 31,790

6 Claims.

This invention relates to improvements in tiles for stave silos and is a division of my application Serial No. 554,430, filed August 1, 1931.

The objects of the invention are:

First, to provide staves of resistant refractory material with molded accurate joints therebetween.

Second, to provide a vitreous tile stave with a molded joint part fitting accurately to the proper angle and also with proper tongue and groove or other interfitting joint part.

A tile embodying the features of my invention is illustrated in the accompanying drawing, in which:

Fig. 1 is a perspective view of a tile.

Fig. 2 is an inside elevation of the same.

Fig. 3 is a horizontal cross section through the tile showing the form of the vitreous part and the joint part at each side.

The parts will be identified by their numerals of reference which are the same in all the views.

I is the vitreous body or core part of the stave. 2 is the molded joint border carrying the tongue. 3 is the mold joint border carrying the groove correspondingto the tongue. The contact surfaces of the tongue and groove joint are at the appropriate angle with the tile to produce a silo of the required dimensions, 8, 10, 12, or feet in diameter as the case may be.

The core is preferably of vitreous tile but may be of any resisting material. The molded joints are of concrete. They may be made of resistant material capable of being molded, like Bakelite for instance, or materials comparable to vulcanized rubber, hard or soft. I prefer concrete because of its durability, cheapnessand ease of application.

In the manufacture of silos the stave silo with the staves made of wood has been standard and satisfactory for many years, notwithstanding that the action of the ensilage and the fermentive juices thereof are more or less destructive to the wood. It is possible to machine such staves to an accurate fit with the right bevel and the right 45 tongue and groove.

Concrete staves similar to the wood made in sections exactly similar to the wood staves with end joints between the sections have been made, However, the concrete also deteriorates from the 50 reaction of the fermentive juices of the ensilage and while concrete is supposed to be a material that will last a lifetime it deteriorates under the action of these juices.

As an alternative, silos have been made up of 55 glazed vitreous building tile with steel reinforcement, the tiles being laid like brick and joined together with a thin layer of mortar. This construction is expensive both in material and in the requirement of very skilled labor to produce the same. It is subject to defects and the mortar, although specially made, deteriorates and requires frequent paintings and coatings.

The vitreous tile is especially desirable for this purpose of silo staves and I have heretofore attempted to produce the same with ground joints; The expense of such is, I find, prohibitive, because of the heavy cost of the grinding wheels and saws and, also, because of the breakage which seems to be quite unavoidable and great care is required to produce structures with satisfactory joints.

I have solved the difficulties and secured the benefit of vitreous tile by forming the joints of concrete. This I preferably do by the method described in the application Serial No. 554,430, filed August 1, 1931, of which this is a division. The same, however, can be producedin a variety of ways by any material that will freely run in a mold or is capable of being molded in a semiplastic condition. It is an easy matter to make the edges of the tiles rough so that such molded material will be adherent thereto. I find Portland cement mortar or concrete to be the most satisfactory material. It can be formed very readily and fiows readily by jogging into the mold so that only a very narrow line need be exposed at the interior of the silo to the action of the silage juices. This narrow linemay be very readily stopped with asphaltum or similar resistant mixtures introduced into the crease, preferably by a gun similar to a grease gun. It will be seen from this description that the body of the stave is made of highly resistant material and that joint parts are molded thereon from material that is moldable or lends itself to that treatment.

High grade moldable material which is resistant to the action of the juices as I have indicated might be employed, but I find that unnecessary where the joint is effectively made and can be closed up by a properly produced line of asphaltum or resistant material.

I desire to claim the invention specifically and. also broadly as pointed out in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A vitreous tile and concrete stave comprising a tile base or body with molded concrete tongue and groove joint extensions.

2. A vitreous tile and concrete stave comprising a tile base or body with molded concrete joint extensions.

3. A stave consisting of a resistant body portion presenting a resistant interior surface with molded joint borders. having contact surfaces atv appropriate angles for such staves.

4. A stave consisting of a resistant body portion presenting a resistant interior surface with molded joint borders having contactsurfaces of PERCY C. FISH.

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