G. H. F. Nuttall 
471 
in the preceding two forms, the articles to be disinfected are contained in 
the usual kind of cradle that slides in and out; in the larger fixed installa¬ 
tions such cradles run out on rails. The two doors open respectively into 
two rooms that are separated by a wall into which the sterilizer is built 
(see Text-fig. 23). The infected articles are introduced on one side 
and after disinfection are removed to the “clean” side; this being the 
Fig. 23. Thresh Disinfector, furnace-heated type. Permanent installation. Vertical 
section and plan, showing double door machine 5 ft. long. The doors open respectively 
into apartments for the reception of infected and the discharge of disinfected clothes. 
usual method employed everywhere since steam disinfectors of various 
kinds were first introduced into well-planned institutions. 
The Washington-Lyon High-pressure Disinfectors (Barford & Perkins, 
Ltd, Peterborough) are also extensively employed, various forms, either 
fixed or portable, being in use, as with the Thresh. Like these, they have a 
steam-tight door to the jacketed chamber. Steam at 30 lbs. pressure is first 
