Gr. H. F. Nuttall 
467 
Regular Apparatus. 
Portable Field Disinfecting Boxes (Fig. 21) have been extensively used 
by the British Army in the present war. These boxes are made of wood 
lined with zinc and felt, and steam is led into them from above at the 
side through an iron pipe and flexible tube emanating from a separate 
wrought iron boiler which can be placed on an improvised fireplace. Each 
box weighs 400 lbs. complete with boiler, and is capable of dealing with 
6 soldiers’ kits or 8 blankets at a time, the exposure to current steam 
lasting 30 minutes. The boxes can also be used for disinfection by 
formalin. 
(^1) The box with lid removed. It measures roundly 3 x3 x 1-8 ft. (height) externally 
when closed, being made of J in. wood dovetailed at the corners, and lined with zinc 
covering cow hair felt; a strip of white felt along the edge ensures tight closure when the lid 
is bolted down by eight hinged thumb-screws. In a later model than the one here figured, 
the thermometer ( T) is placed 4 inches above the lower margin and the box is divided into 
two compartments by a vertical partition, iron gratings, resting on slats occupying the 
floor of each compartment. The steam enters above at one side and escapes through a 
narrow slot (101" x -f^") near the bottom on the side adjacent to the thermometer. The 
boiler ( B ) measures roundly 1 ft. 9" x 1 ft. 2" x 10" (height), a side receptacle (R) is pro¬ 
vided for filling it by lifting the lid as figured. The steam pipe leading to the box measures 
3 ft. in length. 
The “ Newman” Disinfector (Bl.X.,Figs. 1 and 2) 1 is a simple, inexpensive 
current steam disinfector possessing the advantage that it can be folded 
and quickly packed in a small space for transport. It consists of an 
upright wooden box whose walls are held together with thumb-screws. 
1 London Warming and Ventilating Co., Ltd, 20 Newman Street, Oxford Street, 
London, W. 1. 
