Gr. H. F. Nuttall 
473 
The portable forms are provided with a boiler and furnace, and the 
door is hinged on one side, the whole being mounted on a 2 or 4-wheeled 
vehicle. The Model “2 Z)” (see table, p.475), as supplied to the War Office, 
is generally similar to the machine illustrated in PI. XI, Fig. 7, but measures 
39 in. diarn. x 84 in. long. This form is also made with a single door at 
one end and mounted on a carriage, preferably 4-wheeled if for use in 
hilly country. 
Alliott and Paton’s Patent High-pressure Steam Disinfectors (Manlove, 
Alliott and Co., Ltd, Engineers, Nottingham, London and Manchester) 
are made in a large variety of forms suited to different requirements. 
They employ “dry saturated steam” at 260° F. The makers formerly 
manufactured the Washington-Lyon but claim to have improved it con¬ 
siderably. Steam enters the jacket at 30 lbs. pressure. A partial vacuum 
Fig. 25. Alliott and Paton Horse-drawn Steam Disinfector. The type M.P. here figured 
has a chamber of 60 cub. ft. capacity and corresponds to L.O. stationary type. 
can be produced in the chamber which may be used either for circulating 
steam or as a hot-air oven. The various types are either circular, oval, 
or square in cross section. A few of the fixed and portable types are 
shown in the accompanying illustrations, types “M.O.,” “L.O.” and 
“M.P.” being such as have been supplied to the War Office (PI. XII, 
Figs. 8, 9, Text-fig. 25). 
A small “L.C.C.” type of “ Vermin Destroyer ” is also made by this 
firm, being designed for the treatment of verminous clothes in schools. 
It consists (PI. XIII, Fig. 10) of a vertical, double-walled, cylindrical, 
galvanized steel vessel covered outside with asbestos. The vessel is closed 
by a steam-tight hinged lid with balance weight, the lid bearing hooks 
interiorly for suspending effects. Water, about 1 foot in depth, is filled 
into the outer receptacle or boiler (between the double walls) and is 
brought up to boiling-point by a gas ring beneath or is heated by steam 
