NS Patent: 11 - For the manufacture or composition of artificial slate


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NS Patent: NS-11

For the manufacture or composition of artificial slate

Patentee:

John W. Ross (exact or similar names) - Truro, Colchester County, NS Canada

USPTO Classifications:

Tool Categories:

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Mar. 06, 1850
Granted:	Mar. 21, 1850

Patent Pictures:

Report data errors or omissions to steward Jeff Joslin

Description:

Nova Scotia (NS) patents were issued between 1834 and 1867, when they joined with Ontario, Quebec and New Brunswick to form the Dominion of Canada.

There is no patent drawing. "...artificial slate is formed by drying, calcing and grinding portions of Alumina, Silica, Magnesia, Sulphate of Sary-Tas and Lime with the Oxides of iron and mixing with linseed oil and spirits of turpentine."