Gauge
Dewrance
Category
Technological items
Date
Unknown
Materials
Copper, brass, steel and glass.
Measurements
45 mm (Depth); 190 mm (Diameter)
Place of origin
London
Collection
Penrhyn Castle, Gwynedd
NT 1700652
Summary
Vacuum gauge. A vacuum gauge with scale 0-30 inches of mercury. The gauge is in a glazed copper and brass case with a screwed spigot below. The white face is marked in red except for the black owner's mark, and the needle is black. The case is flanged and has three holes for attachment. It was used by British Railways in connection with train braking systems.
Marks and inscriptions
On dial: VACUUM / INCHES OF MERCURY On dial: DEWRANCE LONDON On dial: "B.R.(M)" Around dial: 0 / 5 / 10 / 15 / 20 / 25 / 30
Makers and roles
Dewrance , maker