Air Compressor - Steam
Maker and role
Ingersoll Rand, Manufacturer
Production date
Circa 1920
Object detail
Accession number
1986.41
Maker
Description
Steam driven, air compressor, Ingersoll Rand AA-2, built in the 1920s.
In-line steam cylinder, high-pressure air cylinder and low pressure cylinder on same longitudinal axis; flywheels/crank at head end of steam cylinder; valve operating rods at head of steam cylinder; Meyer-type adjustable, cut-off balanced steam engine; steam valves operated via 2 rockers working on a single eccentric; tail tube on L.P. air piston, apart from acting as the air intake, also assists in supporting the L.P. piston minimising cylinder/piston ring wear; adjustable, variable fly-ball governor - 2 ball watts-type. Painted blue (previously orange?)
Serial No.12935.
In-line steam cylinder, high-pressure air cylinder and low pressure cylinder on same longitudinal axis; flywheels/crank at head end of steam cylinder; valve operating rods at head of steam cylinder; Meyer-type adjustable, cut-off balanced steam engine; steam valves operated via 2 rockers working on a single eccentric; tail tube on L.P. air piston, apart from acting as the air intake, also assists in supporting the L.P. piston minimising cylinder/piston ring wear; adjustable, variable fly-ball governor - 2 ball watts-type. Painted blue (previously orange?)
Serial No.12935.
Marks
CLASS AA2 AIR COMPRESSOR / NO 12935 / STEAM CYL 14 X 14 / AIR " 16 ¼ & 10 ¼ X 14 / Ingersoll-Rand Company, / 11 BROADWAY / NEW YORK. Maker's Plate
PATENTS / No 415370 NOV.19.1889 / No 415822 NOV.26.1889 / No 422255 FEB.25.1890 / No 447920 MAR.10.1891 / No 456165 JULY.21.1891 / No 514839 FEB.13.1894 / No 641896 JAN.23.1900 / No 675340 MAY.28.1901 / No 689565 DEC.24.1901 / No 710712 OCT.7.1902 / No 745298 NOV.24.1903 / No 754901 MAR.15.1904 / Ingersoll Rand Company Maker's Plate
INGERSOLL-RAND CO., / NEW YORK. / 3½ Embossed
KH4 Embossed
246398 Impressed
PATENTS / No 415370 NOV.19.1889 / No 415822 NOV.26.1889 / No 422255 FEB.25.1890 / No 447920 MAR.10.1891 / No 456165 JULY.21.1891 / No 514839 FEB.13.1894 / No 641896 JAN.23.1900 / No 675340 MAY.28.1901 / No 689565 DEC.24.1901 / No 710712 OCT.7.1902 / No 745298 NOV.24.1903 / No 754901 MAR.15.1904 / Ingersoll Rand Company Maker's Plate
INGERSOLL-RAND CO., / NEW YORK. / 3½ Embossed
KH4 Embossed
246398 Impressed
Media/Materials
Collection
Credit Line
Ingersoll Rand. Circa 1920. Air Compressor - Steam, 1986.41. The Museum of Transport and Technology (MOTAT).
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