Browsing named entities in Knight's Mechanical Encyclopedia (ed. Knight). You can also browse the collection for Chas or search for Chas in all documents.

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er. The trench made by spades or machines for the reception of drain-tile. Chas′er. 1. (Machinery.) A tool for cutting threads in the hand-lathe; sometimesortar-mill ; oil-mill.) Also used in grinding ore for puddling-furnaces, etc. Chas′ing-chis′el. A punch used in enchasing. The mallet by which it is driven is the chasing-hammer, and the operation is performed on a stake. See chaser. Chas′ing-ham′mer. The mallet of the chaser in the operation of enchasing by embossing by punches. (See a b, Fig. 1256.) Chas′ing-lathe. A screw-cutting lathe. So called from the name of the tool wherewith screws were cut by hand in the old fong-tools, and is provided with slide-rest movement. b is the hand-tool rest. Chas′ing-tools. Those used by the chaser in the operation of embossing by punches.ylinder B, through which the needle passes, acts as a gas-check. Chassis. Chas′sis. (Ordnance.) The base-frame on which a barbette or casemat