Two centuries of shipbuilding by the Scotts at Greenock

104 Electric Power Station.
nection with the making of eye-plates, cleats, stanchions,
clips, etc. In each finishing shop there are band saws, radial
and other drills, screwing machines, and grindstones. Smiths'
stores are arranged above the finishing shops.
The plumbers' shop is fitted with a special machine for
bending pipes when cold, as well as screwing and tapping
machines, drills, saws, grinders, and fires.
The sheet-iron department is equally well equipped,
having straightening rolls, shearing, punching, chipping,
drilling, and other tools, with various hammers ; and here
work is done in connection with ventilating and other light
ironwork.
In view of the warship contracts undertaken, the
mechanics' shop, for work peculiar to the ship as distinct
from the propeller machinery, etc., is extensive. The four
lathes here range up to 27 ft. in length over all, with a
14-in. headstock and a 22-ft. bed. There is a useful shaping
machine, a fair-sized planer, and several drills, all adequate
for the work required, which is remarkable more, perhaps, for
its great variety than for size.
All the machinery in the yard, and in several depart-
ments in the engine and boiler works, is run from one central
station, of which two views are given on Plate XLVIIL,
opposite. The electric generators occupy one side of the
power station, and the air compressors and hydraulic pumps
the other. Steam at 200 lb. pressure is supplied by one
marine cylindrical, and four Babcock and Wilcox water-tube,
boilers, with superheater, coal conveyors, and mechanical
stokers.
There are three electric generating sets, with a total
capacity of 1200 kilowatts, the voltage being 240. They
are illustrated on Plate XLVIIL, facing this page. The
engines are of the high-speed, enclosed, forced lubrication,
condensing type. The current is distributed from a switch-
board in the power station by overhead mains, with three-