Part bed-plate with cylinder
Part bed-plate with cylinder, valve chest, pistons, rods and crosshead lubricators on cylinder cover and stuffing boxes, valve, valve spindle crosshead and side rods, weightshaft complete and governor valve
Cylinder, pistons and valve gear etc., from the compound beam engine "Beta", made by Middleton in 1866
This engine was one of a pair made by Thomas Middleton & Co. of Southwark, London, for that city's South Metropolitan Gas Works, on Old Kent Road. It is one of only three beam engines surviving built with the high pressure steam cylinder placed within the low pressure cylinder [which forms an 'O' around it], an 'annular' design economising on space and offering better thermal efficiency.
Details
- Category:
- Motive Power
- Object Number:
- 1956-2
- Materials:
- cast iron, wrought iron, gunmetal and brass (copper, zinc alloy)
- type:
- valve
- credit:
- South Eastern Gas Board
Parts
Air Pump Barrel with Foot Valve
Air pump barrel with foot valve
- Measurements:
-
overall: 578 mm x 1700 mm x 1300 mm,
- Object Number:
- 1956-2/2
- type:
- air pump barrel
- Image ©
- The Board of Trustees of the Science Museum
Air pump bucket and rod
Air pump bucket and rod
Air pump delivery plate
Air pump delivery plate with stuffing box and valve
Air pump cover and gland (lacks gland nuts)
Air pump cover and gland (lacks gland nuts)
Air pump rod with loop
Air pump rod with loop, gib & cotter and brasses of top end
- Object Number:
- 1956-2/6
- type:
- air pump rod
Stop valve and lubricator
Stop valve and lubricator
Frame member providing anchorage points for radius rods
Frame member providing anchorage points for radius rods, with 4 tapbolts and washers
- Object Number:
- 1956-2/8
- type:
- frame member
Pair of columns to support /8 above cylinder
Pair of columns to support /8 above cylinder, with nuts
- Object Number:
- 1956-2/9
- type:
- column
Pair of great links of parallel motion, complete
Pair of great links of parallel motion, complete
- Object Number:
- 1956-2/10
- type:
- link
Parallel bars
Parallel bars, back links, radius rods with anchorage bearings all jointed to looped arbor
Part of eccentric rod with clevis & pin
Part of eccentric rod with clevis & pin
- Object Number:
- 1956-2/12
- type:
- part
Brass maker's plate
Brass maker's plate (from A-frame that we do not have) and 3 pieces of brass plate cleading from cylinder cover
- Materials:
- brass
- Object Number:
- 1956-2/13
- type:
- makers plate
- Image ©
- The Board of Trustees of the Science Museum
Brass maker's plate
Brass maker's plate from A-frame, consisting of X-shaped piece of brass with fittings in each corner and red 'X' painted on one side.
- Measurements:
-
overall: 30 mm x 430 mm x 280 mm,
- Materials:
- brass
- Object Number:
- 1956-2/13/1
- type:
- makers plate
- Part of:
- 1956-2/13
Related Objects
Frames containing prints of 1000 K.W. Ljungstrom steam turbine
Collotype, 6000 K.W. turbo-alternator
