{
#
COPY
EXTRACTED FROM TURERS
SANITATION
!
IN INDIA 1914.
450
"Of recent years the layton Disinfecting
Company have placed a series of machines on the
market. These machines can be classed under two
heads, viz: (1) High Strength Gas Machines and (2) Dilute Gas Machines. Disinfection by the former is carried out by converting a part of the atmosphere
in a room into a gas containing from 12 per cent, to 18 per cent of 50. and allowing this to mix with the
rest of the air in the room. This strength is suit-
able for hospital wards, rooms and empty holds of
ships, but for holds filled wit.. cargo or for ware-
houses closely packed with merchandise, the Dilute
Gas Machine is preferable. This willrapidly convert
all the air in a room into a gas containing 3 per
cent S02. In this system, the air of the compart- ment undergoing disinfection is extracted, and, as it is drawn through the machine, becomes converted into a disinfecting gas at a high temperature by passing over burning sulphur in a specially con- structed generator. It is then cooled and forced by pressure back into the compartment. Delivery and suctio operations, which are produced by a powerful blower, proceed simultaneously and the volume of air withdrawn is equal to the volume of
if disinfecting gas delivered into the chamber, so, any leakage occurs, it is only due to diffusion.
The