Document aBGMY9pRdgR7Q0eaZazK76DJ9

Patented Jan. 3, 1933 ,1 892,864 UNITED STATES PATENT OFFICE WALTER 0. BRASSES'!, OF KALAMAZOO, MICHIGAN CONCRETE SILO WALL MEMBER Application llleil January 1?, 1931. Serial No. 08,108. It is desirable in silo construction to uti the inner side of a concrete silo block treated lize concrete in the manufacture of slabs and with paraffin and in which the paraffin in the blocks because of the inherent strength and margin outside of such area has been re convenience and economy of construction. moved by heat. 6 However, duo to the absorbent nature of this In my preferred method a preformed con- 65 product the ensilage next to a concrete wall cretc slab or block is first placed on a hot iron is more or less deprived of moisture needed plate to drive the moisture out of the surface in its proper curing and fermentation: also and heat the block so the paraffin will pene because the acid and sugar content of the cn- trate it readily. Then the block is moved 10 silage juices which react chemically with the into a shallow pan containing just enough 60 cement in the concrete cause decomposition melted paraffin to immerse the block to a and gradual destruction of the wall it is depth of about one half inch. Next, the block . desirable to waterproof the interior wall of is move 1 up n healed ramp where the adher concrete silos. Tiiis-ima boen-aUemptedJby ing drops or lumps of paraffin are melted 15 plastering of the inside of silos but tin: acids ami How back into the pan. 3 . anq sugar:, e.iiise the plaster to soften and The block is then moved over a pair of chsince^gia, '" parallel rails with angular channels receiv ' Attempts to apply a coating of asphalt or ing the corners of the block. The rails are paraffin which are not affected by ensilage heated sufficiently to drive the paraffin out 40 have failed or proved impractical. Asphalt of the edges and sides of the block next to paints do not form a permanent bonu wall the rails by melting and distillation, leaving th'ffcoiicrofg.ajpcljeeTolb or the ajliluilkcoincs the concrete exposed there the same as it was oliLwith the. ensilage to. which it adheres. before the paraffin was applied. The block Pgjaffin,. necessarily- dissoived-in-gitswl r is next moved at right angles over another U similar ipflnmnir.blp.solvents cannot lie, used pair of angular heated tracks which drive 75 because qf thedanger to the. operator. Fur the paraffin out of the two other sides and . thermoro the joints between 'ceiifent silo edges of tlic block, leaving it as indicated in blocla must be filled with cement which the drawing. Tills method is fully described would not properly cure. iu^the4Jii^wiKCA>f ami claimed in mv copending application, paraffin solution rrriwph.itfpaint ji|i|] jf wynld Ferial No. 508.107.' 80 Fe^ouaracrcially.impractical for the silo con- I am aware that the desired result may be -fructora to first-fill tlnTjoints tfffrh'Teinont otherwise secured ntul I therefore do not and wait around for a day or more for the desire to be limited any more than is re M cement in the joints to cure and harden be quired by the appended claims. fore applying the spray or paint. I claim: 85 The object of this invention is to infuse 1. A eiee rete silo wall member having its the inside surface of the concrete slabs or ins!;|o serf ice infused with an ensilage mois blocks with parnffin or asphalt or other waxy ture tv-uhim. except at its marginal areas or bituminous sutistanees at the factory be wlv :e contact,-,! bv a joint-closing material. ^ fore they arc shipped, that there ei.nl,l g. A concrete silo wall mcmlvr having its never be a separation through abr:c ion or ia-d-.l" surface proofed against absorption of lack of bond. ci,'!lag" moi-tnie except where contacted by . A further object is to leave (he edges of a joint clo- ing material. <s the finished slabs or blocks without paraffin :l. A eonrrete dlu wall member baring its or asphalt 60 they can bond with the cement inside surface proofed bv paraffin against 'yliich is forced into the joints to make a con- absorption of ensilage moisture except at its tinuouswall. marginal areas where contacted by a joint- . Such a block ia illustrated in persjxrctivc clewing material, to tn the accompanying drawing in which the I. A concrete silo wall member having its area a, i, c, d represents tho major portion of inside surface proofed by asphalt against DSW 379510 STLCOPCB4100282 2 1,803,884 absorption of ensilage moisture except at its marginal arena where contacted by-a joint closing material. 5. A concrete silo wnll member hnving its * inside surface infused with an ensilage mois ture resistnnt which resistant is driven below the surface at areas where joint-closing ce ment is used. In testimony whereof I affix rav signature. w Walter o. brassert. IS so 25 SO 35 40 45 60 45 0 <5 dS\N 379511 STLCOPCB4100283 , ,1 892 8*4 tor WatfrO.*---*' Attorn^*' 0s* S'19512 STUCOPCB40284