Bedplate from bob wall
Bedplate from bob wall
Cornish pumping engine
- maker:
- Harvey and Company Limited
Cornish pumping engine, by Harvey & Co., Hayle, 1863; comprising the metallic parts and wooden parts of the engine house from Carpalla China Clay Quarry, near St. Austell
Details
Parts
2 new brasses for gudgeons
32 new brasses for gudgeons (made in Museum; require fitting to items 2)
Working beam or bob
Working beam or bob; lacks pin for back links of parallel motion; otherwise complete.
- Object Number:
- 1954-178/4
- type:
- beam
Cylinder bottom
Cylinder bottom
4 holding down bolts with nuts & washer
4 holding down bolts for item 5 with nuts & washers
- Object Number:
- 1954-178/6
- type:
- bolt
Cylinder cover
Cylinder cover with gland and packing and lubricator
Piston with rod, piston rod cap and piston rings
Piston with rod, piston rod cap and piston rings.
- Object Number:
- 1954-178/9
- type:
- piston
Pair of great links of parallel motion complete
Pair of great links of parallel motion complete
Back links of parallel motion complete
Back links of parallel motion complete
Pair of parallel bars of parallel motion
Pair of parallel bars of parallel motion, complete with brasses etc & 2 nuts each
- Object Number:
- 1954-178/12
- type:
- bar
Arbor with loop to which item 12
Arbor with loop to which item 12 (parallel motion) are secured.
- Object Number:
- 1954-178/13
- type:
- arbors
Pair of radius rods of the parallel motion
Pair of radius rods of the parallel motion
- Object Number:
- 1954-178/14
- type:
- radius rod
Arbor for Anchorage Point
Arbor for anchorage point of items 14 with pair of bolting brackets.
Top nozzle with valves and 2 of 3 bonnets
Top nozzle with valves and 2 of 3 bonnets (one missing) for stop valve steam inlet and equilibrium valve. Spindle of equilibrium valve is bent
- Object Number:
- 1954-178/16
- type:
- valve
Flanged elbow of short pipe section
Flanged elbow of short pipe section, possibly for steam inlet pipe
- Object Number:
- 1954-178/17
- type:
- pipe elbow
Perpendicular pipe with brasses for exhaust valve weigh shaft
Perpendicular pipe with brasses for exhaust valve weigh shaft, gland ring for joint in bottom nozzle, bottom nozzle & exhaust valve complete, all assembled together
Upper part of eduction pipe
Upper part of eduction pipe with guides for plug rods complete with glands
Lower end of eduction pipe and condenser body joined together
Lower end of eduction pipe and condenser body joined together (rust joint)
Air Pump Body with Foot
Air pump body with foot (rust joint) and head (bolted joint)
Air pump bucket, rod, cap and pin and cover with gland complete
Air pump bucket, rod, cap and pin and cover with gland complete
Air pump rod complete with brasses
Air pump rod complete with brasses, keeper, gib & cotter
Top part of pump spear with plates
Top part of pump spear with 2 hanging plates and 2 flitch plates
Bearing block for pump spear and gib and cotter
Bearing block for pump spear and gib and cotter
- Object Number:
- 1954-178/25
- type:
- block
1 stay to sword with loop; cotter and nuts fitted
1 stay to sword with loop; cotter and nuts fitted
2 heavy stools
2 heavy stools; purpose unknown but perhaps to catch blocks
- Object Number:
- 1954-178/29
- type:
- stools
Cylinder false cover (cleading) ;in 2 parts
Cylinder false cover (cleading) ;in 2 parts, one part with mechanical lubricator fitted.
Feed pump rod with brasses, keeper gib & cotter
Feed pump rod with brasses, keeper gib & cotter
Feed pump complete with plunger and clevis
Feed pump complete with plunger and clevis, suction valve with relief valve and delivery valve. Clack of relief valve & rod to hold it down removed to item 64
- Object Number:
- 1954-178/32
- type:
- pump
Wrought iron pipe with elbow & flange
Wrought iron pipe with elbow & flange (2.5" nom) being suction line to feed pump.
- Measurements:
-
overall: 210 mm x 260 mm x 1000 mm,
- Materials:
- wrought iron
- Object Number:
- 1954-178/33
- type:
- pipe
Galvanised tank that was used as the hot well
Galvanised tank that was used as the hot well
- Object Number:
- 1954-178/34
- type:
- tank
Injection valve body (for valve & rod see item 49)
Injection valve body (for valve & rod see item 49)
- Object Number:
- 1954-178/35
- type:
- valve
Left weigh post with brasses for arbors
Left weigh post with brasses for arbors & pin for catches
Right hand weigh post
Right hand weigh post with brasses for arbors and two pins for catches with collars washers & pins
Head of weigh frame
Head of weigh frame with 2 glands for plug rod guides
Weigh shaft with 3 levers and 4 pillars
Weigh shaft with 3 levers and 4 pillars (1 detached) and 2 other pillars to support the spindle guide.
- Object Number:
- 1954-178/39
- type:
- weigh shaft
3 Valve spindle loops (stop steam of equilibrium)
3 Valve spindle loops (stop steam of equilibrium), spindle guide for these (fits on pillars of item 39); exhaust valve spindle cap and lifting link, exhaust valve weighshaft with 2 levers and rod to exhaust valve arbor, 3 catches with weights
- Object Number:
- 1954-178/40
- type:
- valve
3 arbors with all levers, sectors etc in place
3 arbors with all levers, sectors etc in place
- Object Number:
- 1954-178/41
- type:
- arbors
Two Rods from Steam & Equilibrium Arbors
2 rods from steam & equilibrium arbors to levers on weighshaft
Three Hanging Rods for the Arbors
3 hanging rods for the arbors, 2 to attach to balance boxes item 44, and one with hook end
2 balance boxes on beams with trunions
2 balance boxes on beams with trunions. (Beaming stools item 78; old iron from boxes amongst item 67)
- Object Number:
- 1954-178/44
- type:
- box - container
Rod from Exhaust Arbor
Rod from exhaust arbor to work injection valve
Arbor with two levers to go below working floor for working injection valve
Arbor with two levers to go below working floor for working injection valve, with one bearing plate (of 2).
- Object Number:
- 1954-178/46
- type:
- arbors
Rod for Connecting Arbors
Rod to go from item 46 to item 48 (arbor to arbor)
Arbor with 2 levers to straddle condenser cistern
Arbor with 2 levers to straddle condenser cistern, with two plummer blocks
Steam and exhaust cataract complete
Steam and exhaust cataract complete
- Object Number:
- 1954-178/50
Improvised cock spanner to control steam exhaust
Improvised cock spanner to control steam exhaust cataract being an iron pipe with end squared and a lever pinned on complete with bearing plate
Steam and Exhaust Cataract Rod
Steam and exhaust cataract rod (forked lower end with elongated loops)
- Measurements:
-
overall: 45 mm x 50 mm x 2360 mm, 5.5 kg
- Object Number:
- 1954-178/52
- type:
- cataract rod
Steam and Exhaust Cataract Loop
Steam and exhaust cataract loop and two guides for loops and rod (bushes loose)
Equilibrium cataract complete
Equilibrium cataract complete, with drop link to item 55
- Object Number:
- 1954-178/54
- type:
- equilibrium cataract
Lever on arbor on pair of light stools
Lever on arbor on pair of light stools, used for resetting equilibrium cataract
Control Rod for Equilibrium Cataract
Control rod for equilibrium cataract in two lengths - lower cranked with 2 nuts, upper with lantern screw, hand knob and bracket
- Measurements:
-
overall: 200 mm x 400 mm x 1700 mm, 7.5 kg
- Object Number:
- 1954-178/56
- type:
- control rod
Equilibrium Cataract Rod with Roller Head and Guide
Equilibrium cataract rod with roller head and guide
- Measurements:
-
overall: 210 mm x 390 mm x 2750 mm, 6 kg
- Object Number:
- 1954-178/57
- type:
- cataract rod
Spindle for Stop Valve
Spindle for stop valve, with handwheel, bearing pillar, forked end with clevis screwed on, bevel wheel & lever for automatic regulating gear
Light Rod with Ball Weight
Light rod with ball weight for engaging automatic regulating gear
"St. Austell Govenor" comprising arbor with double gathering pallet striking arm and counterpoise arm
"St. Austell Govenor" comprising arbor with double gathering pallet striking arm and counterpoise arm on 2 pillars screwed to 2 bars, counterweight detached.
- Object Number:
- 1954-178/60
- type:
- arbors
Left plug rod with two tappets, nut & pin
Left plug rod with two tappets, nut & pin
Right plug rod with cut-off slide nut & pin
Right plug rod with cut-off slide nut & pin
Upper plug rod with horizontal head of plug frame
Upper plug rod with horizontal head of plug frame, and strap, brasses, gib and cotter
- Object Number:
- 1954-178/63
- type:
- plug
Feed pump relief valve components
4 tappets and clack and pin with clevis of feed pump relief valve
- Object Number:
- 1954-178/64
- type:
- components
4 'U' shaped bars. 4 large & 4 small plates with holes
4 'U' shaped bars. 4 large & 4 small plates with holes, presumably keepers for holding down bolts & 4 cotters from cylinder holding down bolts.
- Object Number:
- 1954-178/65
- type:
- bar
A quantity of stud bolts
A quantity of stud bolts, nuts and washers, many of these would suit the steam joints
Spings, clevis pins and iron components
Some springs (from U.S. piston rod packing ?), clevis pins (from gear?) and a quantity of rough iron components including 2 chaudron wheels. Many of these served as balance weights for the cataracts and balance boxes (see photograph in technical file)
Spare piston rod cap
Spare piston rod cap.
Two wooden beams for driving floor
Two wooden beams for driving floor
- Object Number:
- 1954-178/69
- type:
- beam
5 wooden beams for middle chamber floor
5 wooden beams for middle chamber floor
- Object Number:
- 1954-178/70
- type:
- beam
Tongue and Grooved Floor Boards from Engine-House
Quantity of tongue & grooved floor boards (6 1/8" in face x 1 3/4" thick) from engine-house
- Object Number:
- 1954-178/71
- type:
- floor board
"Plug door" (bob wall of house)
"Plug door" (bob wall of house) and four parts of doorcase (incomplete as lacks short upright for top light. There was no cill)
- Object Number:
- 1954-178/72
- type:
- door
Posts and rails from staging outside plug door
Posts and rails from staging outside plug door
- Object Number:
- 1954-178/73
- type:
- post
Staircase from Driving Floor to Middle Chamber
Staircase from driving floor to middle chamber
- Object Number:
- 1954-178/74
- type:
- staircase
Simple staircase
Simple staircase (either from driving floor, down floor or from middle chamber, up floor)
Length of handrail from staircase item 74
Length of handrail from staircase item 74
- Object Number:
- 1954-178/76
- type:
- handrail
Short length of handrail
Short length of handrail, 2 handrail end posts, a quantity of balusters for staircase and horizontalk rail in middle chamber and a piece of side skirting for a staircase
- Object Number:
- 1954-178/77
- type:
- handrail
Cylinder cleading boards
A quantity of cylinder cleading boards (about a full-set; no cleading bands found)
One spring beam ie longitudal timber from top chamber floor; there should be two
One spring beam [ie longitudal timber from top chamber floor; there should be two]
Crank, to fit 1 3/4" nom base arbor
Crank, to fit 1 3/4" nom base arbor (purpose not known).
engineering drawings
A set of engineering drawings associated with the Carpella engine.
- Object Number:
- 1954-178/85
- type:
- drawings
Part of the steam supply pipe to the engine
Part of the steam supply pipe to the engine, originally partly built into the house structure and removed when the engine house was dismantled.
- Object Number:
- 1954-178/86
- type:
- steam pipe
