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Publication numberUS772476 A
Publication typeGrant
Publication dateOct 18, 1904
Filing dateApr 21, 1904
Priority dateApr 21, 1904
Publication numberUS 772476 A, US 772476A, US-A-772476, US772476 A, US772476A
InventorsThomas Podmore
Original AssigneeThomas Podmore
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 772476 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

No. 772,476. 'y y PATENTED OCT. 18, 1904.


'APPLIOATION rum) APR. 21, 1'904. No MODEL.

^ v I Httornegs 7 UNITED STATES,

Patented octeber 1s, 1904.




sPE'cIFIcaTIoN formingy part of Letters Patent No. 772,476, dated octeber 18,19`o4. Application iiled April Z1, 1904. Serial No. 204,279- (No model.)

To` all wiz/m, zit may concern/.1. Be it known that I, THOMAS PoDMoRE, a citizen of the United States, residing at Wilkesbarre, in the county of L'uzerne'and State of Pennsylvania, have invented a new and useful Building-Block, 0f which the following is i -a specification.

This invention relates to an articial-stone building-block and method of making the Same.

I The object of the invention is to provide an 'I \artificial stone for 'building purposes having a veneer o r exterior finish in imitation of marble, granite, and similar natural rocks.

The invention consists in applying to, the surfaceof the molded block a thin layer of cement and while the latter is s tilLin a plastic condition sifting a quantity of marble, granite, or similar stone screenings thereon, the surface of the stone after the cement has thor--v oughly set'or solidified being rubbed orpolished t0 remove any loose particles or irregularities in the face of the block, and thereby produce an exterior finish resemblingcross- 4cut or. chiseled natural rock. t

, In the accompanying drawings, forming a part of this specification,- Figure 11 is a perspective View of a building-block constructed `in accordance with my invention. Fig. 2 is va longitudinalsectional view .of the block bef ore'applying the exterior'inish. `Fig. 3 is a similar view showing the screenings` on the face of the block. Fig. 4 isl a longitudinal sectional view of Fig. 1.1

Slmilar numerals of reference mdlcatecori responding parts in all the figures of the drawings.

. The block ,5, which ,may be formed of a .mixturerof cement and sand or other suitable material molded into the desired shape, is 'provided with athin'layer of cement 6, on which is sprinkled aquantity of marble. granite, or I similar 'stone screenings 7, the latter being subsequently rubbed or ground to produce the imitationrstone yeneer or,- exterior finish, v (indicated at 8 in 1 of the drawings.)

is claimed In carrying out the invention I place the blocks 5v after they are thoroughly dry 'on a conveyeror traveling platform arid pass the saine under' a receptacle containing cement, a

thn layer of which is deposited on the face of the blocks.l The'blocks are then passed beneath a vibratingscreen and a quantity of marble or granite ,screenings or similar granular material sifted over the cemented face of the blocks, and thence beneath a tamp which firmly presses said' cement.- The blocks are4 then placed in the drying-room,and after the .cement has thoroughly set or solidified the surface of the blocks are rubbed or ground with a stili 'brush or stone to remove any loose particles and irregularities on the face of the same, thereby producing an'exterior finish or veneer resemlbling cross-cut or chiseled natural rock, as

illustrated in Fig. 1 of the drawings.

It is obvious that the Veneer may be applied to the blocks either before or after the latter are molded, and it is also obvious that any suitable granular material may be deposited on the surface of the blockinstead of the marble and granite screenings shown and described.

Having thus described the invention, what 1s- Themethod of veneering artificial stone or embeds the screenings in whichconsists in depositing a layer of cement f on the face of the block, sprinkling granular material thereon, tamping said granular material, and iinally smoothing the surface of the block by rubbing or grinding the exposed granules so as to present a raised rock face in imitationof cross-cuter Achiseled stone.

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



Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4472919 *May 19, 1982Sep 25, 1984Con-Tex Elements, Inc.Prefabricated building panel
US4784821 *Jun 24, 1987Nov 15, 1988Dory LeopoldMethod for manufacturing a building block imitating a pile of dry stones
US4831802 *May 13, 1985May 23, 1989Leonard BloomInsulated face brick
US4963305 *Apr 10, 1989Oct 16, 1990Leonard BloomInsulated face brick
US5283998 *Oct 7, 1991Feb 8, 1994Jong Slosson BRoofing tile
US5341618 *Mar 9, 1992Aug 30, 1994Schaaf Cecil FNon-rectangular block and wall
US5465544 *Mar 23, 1993Nov 14, 1995Safas CorporationDecorative facings for bricks, cinderblocks and the like
US5930964 *Feb 4, 1998Aug 3, 1999Boehning; John W.Composite lightweight building element and methods of making and using same
US6610224Jan 28, 2002Aug 26, 2003Sullivan Concrete TexturesProcesses for producing monolithic architectural cementitious structures having decorative aggregate-containing cementitious surfaces
US20040035329 *Aug 19, 2003Feb 26, 2004Sullivan Francis W.Compositions for producing architectural cementitious structures having decorative aggregate-containing cementitious surfaces and processes therefor
Cooperative ClassificationB05D2401/32, B28B23/0075, Y10S264/57
European ClassificationB28B23/00W