US2275523A - Silo and method of building same - Google Patents

Description

March 10, 1942. M. GOLDBECK H 2,275,523

SILO AND METHOD OF BUILDING SAME Filed June 20, 1941 Mariin QoZdZecZ of the tiles and to includes a zzontal 1 center lines of courses;

Patented Mar. 10, 1942 UNITED STATES PATENT I owl-cs 2,275,523 SILO AND METHOD OF BUILDING SAME Martin Goldbeck, Kansas City, Mo. Application June 20, 1941, Serial No. 399,025

5 Claims.

IMypresent invention relates to certain new and: useful improvements in .silos constructed withyitreous tiles, and it has for an object to .provideicertain improvements on the silo and method of building the same disclosed in my Pat. No. 2,247,836, issued July 1, 1941.

.The present invention. involves an improved tile, and one with means .for retaining the in- .elasticlstave lock and lateral pressure transmitting medium during assembly and until such medium. becomes set.

to so proportion the lengths so arrange them that each course of tiles includes a tile in every column, whereas in the arrangement shown in Fig. l of my aforesaid applications drawing a course tile in every second column only; hence in every revolution of the gin pole twice the amount of tile may be set and a tile has to be pressed down between the expansion joints Another object is only about half as far as formerly.

provide a method of build- Another object is to ing a silo so that the the hoops may be laid constricting pressure of along approximate horithe tile courses. Since the tops and bottoms. of the doors fix the locationsof the principal hoops in about eighty percent, of the cases, this, that in all sizes and heights of silos the tops and bottoms of. the doors coincide with the approximate horizontal center lines of the tile The arrangement is made possible by three sizes of fractional tiles, nine inch, fifteen inch, and twenty-one inch.

The main objects are material, a joint design,

positive hydraulic prestight seal that positively engages the opposing tile staves, thereby transmitting nearly all of the tile arrangement provides then be particularly pointed out in the appended claims, reference being had to the accompanying drawing, in which:

Fig. 1 is a diagrammatic View illustrating the arrangement of tiles in the several staves to obtain the aforesaid advantages.

Fig. 2 is a top plan view of the adjacent :sides of two tiles in a course arranged for, a silo of a ten-foot diameter.

Fig. 3 is a View similar to Fig.2 but on a reduced scale, showing the positions of tiles for a silo of a fourteen-foot diameter.

Fig. 4 is a View like Fig. 3, showing the position of the tiles in a silo of a twenty-foot diameter.

Fig. 5 is adetail perspective view of a portion of a tile of the improved construction.

sion-joint-strip receiving grooves 4, the surface of the bottom of the grooves being outwardly curved. In addition to the grooves 4 there is provided in each vertical side 3, a groove 5 to receive the slab-locking medium 1 and a third is formed beof adjacent tiles when assembled, thus permitting the material of the lateral-pressure-transmitting medium to poured. Horizontal joint-slabs, similar to those shown in Fig. 4 of myapplication aforesaid, are used as at 40 between the superposed tiles of a stave.

In assembling the tiles to build up the silo, the grooves 4, 5 and 8 of one tile or stave of those of the laterally adjacent tiles or staves of tiles (see'Figs. 2.130 4 inclu- Inter-posed between the tiles and lying lent) strips 9 lie in the respective grooves 8. The expansion strips 6 are preferably made of have been set.

as the tiles are set and after the silo has reached 2 asphaltum-saturated fibre expansion-joint material, as in my application aforesaid, and in cross section correspond in shape, preferably, to the cross sectional form of the grooves 4.

The silo is built from an inside scaffold. As each two-foot course of tile has been set, a hoop G is put on firmly but not so tight that it will become difficult to press every second tile in a course down the six inches it is bonded.

The strips 9 are made in short lengths which are driven down as one or two courses of tile The expansion strips 6 are placed its full height the hoops are tightened so as to attain a full contact between the tiles and the vertical expansion joints. The weight of the silo will compress the horizontal expansion joints 10 so that full contact will be established there.

The pouring of the stave-lock compressionreceiving member I is done in one operation from the top of the silo. The material used is composed, preferably, of one part quick-set Portland cement, three-fourths part of medium sand and one-fourth part of lime putty, mixed and thinned with water tothe consistency of double cream.

The tube-like interstices provided for this lock should be thoroughly soaked with water poured into them immediately before pouring in the grout.

After the grout has hardened, the hoops are fully tightened so that henceforth nearly all of the lateral pressure transmitted from one stave to the adjoining stave is taken up by the stave lock. This hoop-tightening operation is performed by a workman sitting in a bosuns chair suspended from the top of the silo by suitable tackle.

If found necessary for absolute tightness of the silo wall, the joints may be pointed with a water-and-acid-proof caulking compound.

The door openings F are preferably spaced every two feet apart vertically. The doors may be of any approved construction and as they are not, per se, a part of the have not been illustrated in the accompanying drawing.

. It will be seen that by the use of the present bonding arrangement and by placing the constricting pressure closer to the center of the tiles a better balance is achieved than with the arrangement disclosed in my former application. Consequently the chance for failure of the wall, due to unequalized pressures on the individual tiles or individual courses of tiles, will be reduced.

From the foregoing description, taken in connection with the accompanying drawing, it is thought that the construction and advantages of the invention will be clear to those skilled in the art to which it relates.

What I claim is:

1. The method of constructing a silo of hollow tile staves having three sets of opposed vertical side grooves in the tiles, said method comprising setting tiles staggered side by side in horizontal rings or courses with expansion-point strips in one set of the opposed side grooves, placing horizontal joint slabs between the tiles composing the staves, applying sufficient constricting pressure around the courses to ensure full surface contact between the strips and the tiles, placing dam strips in the set of the opposed grooves farthest from the first mentioned set and after the required height of silo has been reached pouring present invention they Y into the tubes formed between the staves by the third set of grooves a suitable grout to fill said tubes, and after the grout becomes set drawing the staves toward one another to transmit a substantial part of the lateral pressure from one stave to the adjoining staves through said set grout.

2. The method of constructing a silo of hollow tile staves having three sets of opposed vertical side grooves in the tiles, said method comprising setting tiles staggered side by side in horizontal rings or courses with expansion-joint strips in one set of the opposed side grooves, placing horizontal joint slabs between the tiles composing the staves, applying sufficient constricting pressure around the courses to ensure full surface contact between the strips and the tiles, placing dam strips in the set of the opposed grooves farthest from the first mentioned set and after the required height of silo has been reached filling the tubes formed between the staves by the third set of grooves with a suitable grout, and after the grout becomes set drawing the staves toward one another to transmit a substantial part of the lateral pressure from one stave to the adjoining staves through said set grout.

3. In a silo, staves of superposed tiles with expansion-joints between the tiles in the respective staves, the staves being arranged in the form of an annulus with the lateral sides of the tiles in each stave disposed in bonded juxtaposition with respect to the lateral sides of the adjoining staves, the lateral sides of each stave having three vertical grooves, those of one stave opposing those of adjacent staves, thereby providing three vertical channels, expansion-joint strips in one of the three channels, dam strips in the channel remote from the first of the three channels, and a lateral pressure filler in the intermediate channel', and means to hold said staves in position with the application of constricting lateral pressure on the staves.

4. In a silo, staves of superposed tiles with expansion-joints between the tiles in the respective staves, the staves being arranged in the form of an annulus with the lateral sides of the tiles in each stave disposed in juxtaposition with respect to the lateral sides of the adjoining staves, the lateral sides of each stave having three vertical grooves, those of one stave opposing those of adjacent staves, thereby providing three vertical channels, expansion-joint strips in one of the three channels, dam strips in the channel remote from the first of the three channels, a lateral pressure filler in the intermediate channel, and means to hold said staves in position with the application of constricting lateral pressure on the staves, said filler serving to transmit a substantial part of the lateral pressure from one stave to the adjoining staves. I

5. A building tile for silos, comprising a hollow body having fiat top and bottom ends and having three vertical grooves in its sides, one of said three grooves constituting an expansion-strip receiving groove, a second of said three grooves constituting a dam-strip receiving groove and the third of said three grooves being disposed intermediate of the other two and constituting a locking key and lateral pressure filler receiving groove the expansion-strip-receiving groove being of a substantially greater width than the width of the other grooves and being located adjacent the inner face of the tile.

. MARTIN GOLDBECK.

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