US2101992A - Method for manufacturing composite vitreous tile and concrete staves - Google Patents

Description

Dec. 14, 193 7.

METHCD FOR MANUFACTURING P. CQFISH 2,101,992, COMPOSITE VITREOUS TILE AND CONCRETE STAVES 7 Filed Aug. 1, 1931 73 Wji' INVENTOR Pe/ g/ 6. Fad/z rATTORNEYQ Patented Dec. 14, 1937 UNITED STATES PATENT OFFECE ITE VITREOUS TILE STAVES CONCRETE- Percy 0. Fish, Kalamazoo, Mich.

Application August 1,

1 Claim.

The objects of this invention are:

First, toprovide an improved method for manufacturing composite staves and in particular vitreous staves with interfitting joints there- Second, to provide such a method which eliminates difficulties of manufacture and provides a highly satisfactory interfitting joint.

Objects pertaining to details and economies of 10 the method will appear from the description to follow.

A mold structure constituting the apparatus for carrying out the method is illustrated in the accompanying drawing, in which:

Fig. l is a plan view of a mold structure with one of my improved staves in position, the vibrator on the under side thereof being indicated by dotted lines.

Fig. 2 is a front elevation view of the mold 20 structure as seen in Fig. 1.

Fig. 3 is a detail left hand end elevation view of the mold with the supporting bench fragmentary and in section.

Fig. 4 is a detail sectional elevation viewon line 4-4 of Figs. 1 and 2, the right hand portion of the base being broken away.

Fig. 5 is a reduced detail perspective view of one of the interchangeable mold ends.

The parts will be identified by their numerals reference which are the same in all the views. I is the base of the mold which is rectangular in form, bearing a supporting stop rail 2 at the back edge which is secured to the base I by bolts 3 (see Fig. 4). 4 is the hollow vitreous 35 tile provided with a projecting rib 4| at one edge and with a corresponding depression 42 at the opposite edge, the same being of usual hollow tile construction with hollows extending from end to end, top to bottom.

The mold is comprised of a rear side form rail 5 containing a longitudinal groove 5| to form a tongue 43 in the concrete portion 44 of the composite tile after it has been molded.

6 is the front mold rail with a longitudinal rib 45 iii to form a groove 45 in the concrete edge 46 of the composite tile 4. Mold ends I are provided with projections H at one end to engage in the groove 5! of the rear mold rail 5 and with a depression 12 to engage the rib SI of the front 50 mold rail 6.

Thread bolts l3, 14 extend through slots in the ends of the said side rails which are clamped in place by wing nuts l5, 15. The opposite edges of the vitreous tile 4 are recessed at 41 and 48 55 to receive the concrete borders. The supporting rail 2 forms a stop for the lower rear edge of the tile 4 and the mold and tile are clamped.

1931, Serial No. 554,430

in place by the pair of eccentric clamp cams 8 pivoted at 8| on the base I (see Figs. 1, 2 and 3).

On the under side of the base of the mold are vibrator motors 9 for agitating and vibrating the mold to cause the concrete delivered thereto to settle into the forms, this being a wellknown expedient for agitating molds, not necessary to be detailed here. It has the efiect in this combination of uniting the cement with the tile and accurately forming the joint by causing the fine aggregates to conform.

In use I place a vitreous stave body 4 in position on my improved base, pressing the rear edge against the stop bar 2. I then place my mold in position around the tile against the projecting rib 4| at the front and in spaced relation at the rear. I then clamp the mold against the vitreous tile body 4 against stop rail 2 by means of the eccentric clamp cams 8. This locates the front bar 6 exactly and precisely in the proper relation to the projecting rib 4. The rear mold frame rail is thus in definite spaced relation to the front edge of the stave, the parts being very firmly held in position.

Semi-fluid concrete is then introduced into the open spaces and the mold is agitated by the vibrators to cause the concrete to level down and work into the interstices. As soon as this has been accomplished the clamp cams 8 are released and the mold frame with the stave therein is passed to a curing rack to set. After the same has had time to set-twenty four hours or such a matter--the molds are removed ready for further use.

The composite vitreous stave when thus manufactured is absolutely true with tongue and groove joint, a thing substantially impossible to accomplish in an all vitreous structure, owing to the warping of the vitreous tile in the firing kiln. By this method a substantially integral tile is produced by the tongue and groove form which can be readily assembled and retained in place by the usual tie rods, the necessity of machining any of the parts being avoided, and the necessity of employing a skilled mason to lay tile is also avoided as unskilled workmen can put them in place rapidly and effectively.

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

The method of forming interfitting vitreous tile staves comprising forming a vitreous tile, firing it, molding a concrete tongue on one edge and molding on the opposite edge a concrete groove adapted to receive a similar tongue.

PERCY C. FISH.

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