16879
Patent Summary
An image of the patent summary for number 16879.
Name/Title
16879Entry/Object ID
2025.3.379Tags
1900s, british, shears, simpsonDescription
16,879. Simpson, W. S. July 23. Shears. -- Relates to the manufacture of composite tools for cutting metals, paper, cloth, wood, stone, &c., and to bars from which tools may be made, by the process described in Specifications No. 27,628, A.D. 1906, and No. 86, A.D. 1907, [Abridgement Class Metals, Cutting &c.]. A small strip 2 of high-speed steel or the like is placed in a groove in the edge of the shear blade 3 of mild steel or wrought iron, a thin strip of copper &c. being interposed. The whole is then clamped together, embedded in a paste of coke, sugar, &c. and water, and heated to melt the copper. Graphite or non-carbonaceous material may be used for coke and the melting done in an atmosphere pf carbon monoxide. Instead of placing the copper between the metals to be joined, it may be placed above and allowed to run between.Cataloged By
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Patent Summaries