Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 72
A^ J < «•-. (r----.> ^/—„ … 64 ASPHALTUM. ASPEN, See Woods, varieties of. ASfi, See Woods, varieties of. ASHLAR, hewn stone used for the facings of walls. If the work be so smoothed as to take out themarks of the tools by which the stones were first cut, it is called plane ashlar; if figured, tooled ashlar,or random tooled,…
Mechanical engineering
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