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

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. Segmental arch.Wool-brick. Semicircular arch.Worm. Ma′sons-lev′el. A plummet-level. Mas′si-cot. (Glass.) The manufacturer's name for the protoxide of lead used in making flintglasse timbers at the side of the mast-rooms that are left deep enough to receive the cross-chocks. Mas′ter-key. A key which commands many locks of a certain set, the keys of which are not interchaney No. 4 is master of the locks for which the keys Nos. 1, 2, and 3 are specially constructed. Mas′ter-tap. A tap-screw. Mas′ter-wheel. The main wheel in a machine which acts as a driver Mas′ter-wheel. The main wheel in a machine which acts as a driver of many parts. Such is the large cog-wheel in a horse-power which imparts motion to a circular system of pinions. See horsepower. Mast-hole. (Shipbuilding.) A hole in the deck to receive apartly of wood and partly of metal, the metallic portion being provided with friction rollers. Mas′ti-ca-tor. 1. A small machine to cut up meat for aged persons or those who have l