BONNEC & GAUTIER erogatore a un tubo / single hose regulator

BRAND
BRONNEC & GAUTIER
MODEL
Single hose regulator
TYPOLOGY
two stage
CONFIGURATION
single hose
FIRST STAGE
piston type
SECOND STAGE Ø mm
down stream
HOSE
left
TOTAL WEIGHT g
-
SPECIAL FEATURES
the first stage reduces the tank pressure to 5 bar - the second stage is fixed to the mask
NOTE
in the first version the tube for breathing on the surface was metal and equipped with a manual closing valve that could be operated via the lower knob - patented in Paris in 1955 (the full patent can be found in the Patents section of this site)
COUNTRY OF ORIGIN
France
YEAR OF PRESENTATION
1955
SOURCE
Andrea Campedelli archive