Cornish pumping engine

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

Category:
Motive Power
Object Number:
1954-178
type:
engines
credit:
Spicers Ltd.

Parts

Bedplate from bob wall

Bedplate from bob wall

Bedplate from bob wall

Measurements:
overall: 180 mm x 1200 mm x 2960 mm,
Object Number:
1954-178/1
type:
bedplate
2 Gudgeon Stools

2 Gudgeon Stools

2 gudgeon stools

Object Number:
1954-178/2
type:
stools
2 new brasses for gudgeons

2 new brasses for gudgeons

32 new brasses for gudgeons (made in Museum; require fitting to items 2)

Measurements:
overall: 270 mm x 275 mm x 130 mm,
Object Number:
1954-178/3
type:
brasses
Working beam or bob

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

Cylinder bottom

Measurements:
overall: 420 mm x 1360 mm x 1360 mm,
Object Number:
1954-178/5
type:
cylinder
4 holding down bolts with nuts & washer

4 holding down bolts with nuts & washer

4 holding down bolts for item 5 with nuts & washers

Object Number:
1954-178/6
type:
bolt
Steam cylinder

Steam cylinder

Steam cylinder

Object Number:
1954-178/7
type:
cylinder
Cylinder cover

Cylinder cover

Cylinder cover with gland and packing and lubricator

Measurements:
overall: 590 mm 1320 mm,
Object Number:
1954-178/8
type:
cylinder
Piston with rod, piston rod cap and piston rings

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

Pair of great links of parallel motion complete

Measurements:
overall: 320 mm x 1860 mm x 1120 mm,
Object Number:
1954-178/10
type:
link
Back links of parallel motion complete

Back links of parallel motion complete

Back links of parallel motion complete

Measurements:
overall: 350 mm x 1500 mm x 620 mm,
Object Number:
1954-178/11
type:
link
Pair of parallel bars of parallel motion

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

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

Pair of radius rods of the parallel motion

Object Number:
1954-178/14
type:
radius rod
Arbor for Anchorage Point

Arbor for Anchorage Point

Arbor for anchorage point of items 14 with pair of bolting brackets.

Measurements:
overall: 270 mm x 1875 mm x 410 mm,
Object Number:
1954-178/15
type:
arbors
Top nozzle with valves and 2 of 3 bonnets

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

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

Perpendicular pipe with brasses for exhaust valve weigh shaft, gland ring for joint in bottom nozzle, bottom nozzle & exhaust valve complete, all assembled together

Object Number:
1954-178/18
type:
valve
Upper part of eduction pipe

Upper part of eduction pipe

Upper part of eduction pipe with guides for plug rods complete with glands

Object Number:
1954-178/19
type:
education pipe
Lower end of eduction pipe and condenser body joined together

Lower end of eduction pipe and condenser body joined together

Lower end of eduction pipe and condenser body joined together (rust joint)

Measurements:
overall: 2500 mm x 1980 mm x 780 mm,
Object Number:
1954-178/20
type:
condenser
Air Pump Body with Foot

Air Pump Body with Foot

Air pump body with foot (rust joint) and head (bolted joint)

Measurements:
overall: 2920 mm x 1420 mm x 1170 mm,
Object Number:
1954-178/21
type:
air pump
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 bucket, rod, cap and pin and cover with gland complete

Measurements:
overall: 610 mm x 2630 mm x 610 mm,
Object Number:
1954-178/22
type:
air pump
Air pump rod complete with brasses

Air pump rod complete with brasses

Air pump rod complete with brasses, keeper, gib & cotter

Object Number:
1954-178/23
type:
air pump
Top part of pump spear with plates

Top part of pump spear with plates

Top part of pump spear with 2 hanging plates and 2 flitch plates

Object Number:
1954-178/24
type:
pump spear
Bearing block for pump spear and gib and cotter

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
Sword (catch wings)

Sword (catch wings)

Sword (catch wings)

Object Number:
1954-178/26
type:
sword
Pair of plates to carry sword

Pair of plates to carry sword

Pair of plates to carry sword.

Object Number:
1954-178/27
type:
plate
1 stay to sword with loop; cotter and nuts fitted

1 stay to sword with loop; cotter and nuts fitted

1 stay to sword with loop; cotter and nuts fitted

Measurements:
overall: 80 mm x 2235 mm x 350 mm,
Object Number:
1954-178/28
type:
stay to sword
2 heavy stools

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

Cylinder false cover (cleading) ;in 2 parts, one part with mechanical lubricator fitted.

Measurements:
overall: 530 mm x 1200 mm x 110 mm,
Object Number:
1954-178/30
type:
cylinder
Feed pump rod with brasses, keeper gib & cotter

Feed pump rod with brasses, keeper gib & cotter

Feed pump rod with brasses, keeper gib & cotter

Object Number:
1954-178/31
type:
pump
Feed pump complete with plunger and clevis

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

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

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)

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

Left weigh post with brasses for arbors & pin for catches

Object Number:
1954-178/36
type:
post
Right hand weigh post

Right hand weigh post

Right hand weigh post with brasses for arbors and two pins for catches with collars washers & pins

Object Number:
1954-178/37
type:
post
Head of weigh frame

Head of weigh frame

Head of weigh frame with 2 glands for plug rod guides

Object Number:
1954-178/38
type:
frame
Weigh shaft with 3 levers and 4 pillars

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)

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

3 arbors with all levers, sectors etc in place

Object Number:
1954-178/41
type:
arbors
Two Rods from Steam & Equilibrium Arbors

Two Rods from Steam & Equilibrium Arbors

2 rods from steam & equilibrium arbors to levers on weighshaft

Measurements:
overall: 80 mm x 140 mm x 3160 mm, 25 kg
Object Number:
1954-178/42
type:
arbors
Three Hanging Rods for the Arbors

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

Measurements:
overall: 150 mm x 540 mm x 3930 mm, 45 kg
Object Number:
1954-178/43
type:
rods
2 balance boxes on beams with trunions

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

Rod from exhaust arbor to work injection valve

Measurements:
overall: 60 mm x 85 mm x 1330 mm, 5.5 kg
Object Number:
1954-178/45
type:
rods
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

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 for Connecting Arbors

Rod to go from item 46 to item 48 (arbor to arbor)

Measurements:
overall: 70 mm x 85 mm x 3365 mm, 13 kg
Object Number:
1954-178/47
type:
rods
Arbor with 2 levers to straddle condenser cistern

Arbor with 2 levers to straddle condenser cistern

Arbor with 2 levers to straddle condenser cistern, with two plummer blocks

Measurements:
overall: 25 mm x 2290 mm x 235 mm,
Object Number:
1954-178/48
type:
arbors
Injection valve on rod

Injection valve on rod

Injection valve on rod

Object Number:
1954-178/49
type:
valve
Steam and exhaust cataract complete

Steam and exhaust cataract complete

Steam and exhaust cataract complete

Object Number:
1954-178/50
type:
steam and exhaust cataract
Improvised cock spanner to control steam exhaust

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

Measurements:
overall: 105 mm x 1850 mm x 415 mm,
Object Number:
1954-178/51
type:
spanner
Steam and Exhaust Cataract Rod

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

Steam and exhaust cataract loop and two guides for loops and rod (bushes loose)

Measurements:
overall: 70 mm x 760 mm x 280 mm, 8 kg
Object Number:
1954-178/53
type:
cataract loop
Equilibrium cataract complete

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

Lever on arbor on pair of light stools, used for resetting equilibrium cataract

Measurements:
overall: 530 mm x 275 mm x 1220 mm,
Object Number:
1954-178/55
type:
stools
Control Rod for 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

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

Spindle for stop valve, with handwheel, bearing pillar, forked end with clevis screwed on, bevel wheel & lever for automatic regulating gear

Measurements:
overall: 260 mm x 480 mm x 2860 mm, 23.5 kg
Object Number:
1954-178/58
type:
valve
Light Rod with Ball Weight

Light Rod with Ball Weight

Light rod with ball weight for engaging automatic regulating gear

Measurements:
overall: 40 mm x 40 mm x 1900 mm, 1.5 kg
Object Number:
1954-178/59
type:
weights
"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

"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

Left plug rod with two tappets, nut & pin

Object Number:
1954-178/61
type:
plug
Right plug rod with cut-off slide nut & pin

Right plug rod with cut-off slide nut & pin

Right plug rod with cut-off slide nut & pin

Object Number:
1954-178/62
type:
plug
Upper plug rod with horizontal head of plug frame

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

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

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

A quantity of stud bolts, nuts and washers, many of these would suit the steam joints

Measurements:
overall: 520 mm x 710 mm x 360 mm,
Object Number:
1954-178/66
type:
bolts
Spings, clevis pins and iron components

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)

Materials:
iron
Object Number:
1954-178/67
type:
springs and clevis pins
Spare piston rod cap

Spare piston rod cap

Spare piston rod cap.

Measurements:
overall: 320 mm x 590 mm x 320 mm,
Object Number:
1954-178/68
type:
piston rod cap
Two wooden beams for driving floor

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

5 wooden beams for middle chamber floor

Object Number:
1954-178/70
type:
beam
Tongue and Grooved Floor Boards from Engine-House

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)

"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

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

Staircase from driving floor to middle chamber

Object Number:
1954-178/74
type:
staircase
Simple staircase

Simple staircase

Simple staircase (either from driving floor, down floor or from middle chamber, up floor)

Measurements:
overall: 2760 mm x 630 mm x 140 mm,
Object Number:
1954-178/75
type:
staircase
Length of handrail from staircase item 74

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

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
4 wooden chocks in which balance box bearers

4 wooden chocks in which balance box bearers

4 wooden chocks in which balance box bearers (item 44) work. Chock for the St. Austell govenor (item 60) and four other shaped wooden pieces

Measurements:
overall: 340 mm x 630 mm x 480 mm,
Materials:
wood
Object Number:
1954-178/78
type:
chock
Cylinder cleading boards

Cylinder cleading boards

A quantity of cylinder cleading boards (about a full-set; no cleading bands found)

Measurements:
overall: 90 mm x 1170 mm x 3080 mm,
Object Number:
1954-178/79
type:
cylinder
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

One spring beam [ie longitudal timber from top chamber floor; there should be two]

Object Number:
1954-178/80
type:
beam
Wooden hood to go over gudgeon of beam

Wooden hood to go over gudgeon of beam

Wooden hood to go over gudgeon of beam

Measurements:
overall: 1900 mm x 910 mm x 860 mm,
Materials:
wood
Object Number:
1954-178/81
type:
hood
Crank, to fit 1 3/4" nom base arbor

Crank, to fit 1 3/4" nom base arbor

Crank, to fit 1 3/4" nom base arbor (purpose not known).

Measurements:
overall: 65 mm x 295 mm x 80 mm,
Object Number:
1954-178/82
type:
crank
Component

Component

Component

Object Number:
1954-178/83
type:
components
4 Tread wooden steps

4 Tread wooden steps

4 Tread wooden steps

Measurements:
overall: 720 mm x 1030 mm x 1100 mm,
Materials:
wood
Object Number:
1954-178/84
type:
steps
engineering drawings

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

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