Dead weight pressure gauge tester, metal/glass, Crosby S G & V Co / Westinghouse Brake Australasia Pty Ltd / Bourdon, Boston, USA/ Australia, 1880s.
Used to test the accuracy of indicated steam pressure. (-1) Base, (-2:3) two sample gauges, (-4:12) 9 x 20 psi brass sheathed lead weights, (-13) 1 x 10 psi brass sheathed lead weight, (-14) 1 x 5 psi brass ring, (-15) 1 x 2.5 psi brass ring, (-16) 1 x 65 lbs psi brass sheathed lead weight.
(-1)The following engraved on stem section, 'PAT. MAR. 11-1864'. (-2)Manufacturer's details painted on face, 'STEAM HEATING / WESTINGHOUSE BRAKE / A'SIA PTY LTD'. (-3)Manufacturer's details painted on face, 'BOURDON / STEAM GAUGE / ... / No. 13390 / MADE IN AUSTRALIA'. (-4:12)Following details cast into top face of discs, '4 LBS. AVDP=20LBS SQ IN. / CROSBY / S.G. & V. CO. / BOSTON / U.S.A. PAT'D MAR 11 '84'. (-13)Engraved as for (-12) except rated for '...10 LBS SQ. IN.'