GB Patent: GB-185,602,956
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| Improved mode of manufacturing artificial granite in various forms, and plating or veneering the same with marble, so as to present an exterior of Marble and an interior of stone or granite"
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Patentee:
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| James Hartas Headley (exact or similar names) - Walpole, Haldimand County, ON Canada |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Dec. 12, 1856 |
Espacenet patent
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Jeff Joslin
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Description: |
| "I take good clean sand, fine gravel, or any pulverable siliceous matter, and add thereto a portion of fresh burnt lime (protoxide of calcium), reduced by grinding to an impalpable power; these I incorporate by mixing intimately. The natural dampness of the sand or gravel will slack the lime, which heating, will cauterize the silicon... To form the marble surface, I take granulated marble and mix it with ground unslacked lime... and I moisten the same until it is sufficiently damp for packing. These two compositions of ingredients I put into a smooth steel mould in such a way so as to leave the sand and lime in the interior of the block, and a thin lamina of the marble and lime on the outside. The mass thus prepared I subject to pressure; when removed from the press, it gradually hardens..." |
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