The trench made by spades or machines for the reception of drain-tile.
1. (Machinery.) A tool for cutting threads in the hand-lathe; sometimesortar-mill ; oil-mill.) Also used in grinding ore for puddling-furnaces, etc.
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.
The mallet of the chaser in the operation of enchasing by embossing by punches.
(See a b, Fig. 1256.)
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.
Those used by the chaser in the operation of embossing by punches.ylinder B, through which the needle passes, acts as a gas-check.
（Ordnance.) The base-frame on which a barbette or casemat