A 'blower' is also slang
for a supercharger
on an internal combustion engine, usually on an automobile
. One classic example of the type is the Judson Supercharger
, a variant found on many sportscar
s of the 1920s through the 1960s.
It's also used to refer to a telephone, usually by military personnel; this may be due to the use in past Navy ships of speaking tubes which required one to shout into them, hence 'blower.'