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50 inch 'Bull' engine

50 inch "Bull" engine built by Harvey & Co., Hayle, Cornwall, in 1876-7 for the iron shaft at Severn Tunnel Pumping Station, Sudbrook, Monmouthshire

50 inch 'Bull' engine

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Staircase Handrail for 50 inch "Bull" Engine

Handrails for 50 inch "Bull" Engine

Rail for Pump Pit

Components for 50 inch "Bull" Engine

1876-1877

Components for 50 inch "Bull" Engine

1876-1877

Rod for 50 inch "Bull" Engine

1876-1877

Cylinder beam rear

Cylinder beam rear

Cylinder with nozzles and bottom cover (lacking gland)

Cylinder with nozzles and bottom cover

Eduction pipe - 2 pieces joined with spigot of faucet expansion joint

Eduction Pipe

Spindle bracket & lever for blowing through valve

Spindle bracket & lever for blowing through valve

Cataract loop and 2 guides for cataract rod

Cataract loop and 2 guides for cataract rod

3 rods from weighshaft to valve spindles

3 rods from weighshaft to valve spindles

3 catches from plug frame

3 catches from plug frame

10 handrail stantions from stairs item 60 (some have tops broken off, one has broken foot); 13 similar stantions for horizontal rail on front of working floor (one broken) and one heavier corner stantion

Handrail stantions from stairs

3 swinging guides for rods (item 47) with 6 bearing pieces (1 broken & corner lost) and 5 rubber bumpers

3 swinging guides for rods

Stay for parts 7 & 8 with nut & washer

Stay for parts 7 & 8 with nut & washer

4 cast valve bonnets.

4 cast valve bonnets

Brass kerb to surround plug rod on working floor (2 pieces); cylinder lubricator; 1/2" screw down valve and trap; 6 pairs of brasses for arbors on plug frame (stamped inverted V for A,B,C,D,E,F); 3 ebonite plug cocks and a wooden back board for a gauge.

Brass Kerb to surround plug rod on working floor

Plug rod with tappets

Plug rod with tappets

Head of weigh frame, with gland for plug rod

Head of weigh frame, with gland for plug rod

Main steam valve

Main steam valve

Condenser cistern with condenser and air pump complete with bucket, rod and cover

Condenser cistern with condenser and air pump complete with bucket

4 cylinder holding down bolts with nuts & washers

4 cylinder holding down bolts with nuts & washers

2 slippers for piston rod cap guides.

2 slippers for piston rod cap guides

Fragments of wooden cylinder cleading

Fragments of wooden cylinder cleading

Cast cleading plate for cylinder bottom

Cast cleading plate for cylinder bottom

Stop for pump rod, comprising two halves to clamp around rod, and two pad plates, one with wooden pad and 5 bolts for the other

Stop for pump rod

Feed pump with plunger & rod, complete with loop, brasses, gib & cotter; foot bracket (fits to 18). Suction clack with relief bypass, delivery clack, shut off cock and tee; lever and weight removed.

Feed Pump

7 cast brackets (1 broken in eye) and 6 stanchions (1 with broken shank. All have top pins cut off) for gallery around cylinder. Note : Piece of curved handrail removed from this lot and put with other pieces found later, item 67

7 cast brackets and 6 stanchions

4 bolts of 9 nuts for fixing piston rod gland

4 bolts of 9 nuts for fixing piston rod gland

Weigh post, left, with frame bolts & nuts and studs & nuts for arbor bearing

Weigh post

Beam forming cill of weigh frame

Beam forming cill of weigh frame

Column

Piston, complete with piston rod

Piston, complete with piston rod

Beam with gudgeon stool, links (complete) and loop for plug rod and air pump rod. The pin for the piston rod cap is not fitted

Beam with gudgeon stool

Guide frame for piston rod cap, right

Guide frame for piston rod cap, right

Transom

Common joists for working floor with wooden bearing pieces.

Common joists for working floor with wooden bearing pieces

Bridging joist for working floor.

Bridging Joist for Working Floor

Beam to support guide frames item 7 & 8

Beam to support guide frames item 7 & 8

Guide frame for piston rod cap, left (as seen from front).

Guide Frame for Piston Rod Cap

Bottom beam, rear (nearest towards pit).

Bottom beam, rear (nearest towards pit)

Bottom beam, front of engine furthest away from pit.

Bottom Beam

Pressure gauges

Pressure gauges

5 cast side plates and 1 cast top plate for cleading around nozzles.

5 Cast Side Plates and Top Plate

Cataract on stand

Cataract on stand

Column spindel with crank, loose crank, lever and push rod with two clevis pins for injection cock

Column spindel with crank

Spindle, handwheel and bracket for steam valve

Spindle, handwheel and bracket for steam valve

3 hanging rods with weights from arbors complete with clevis pins etc

3 hanging rods with weights

3 levers from arbors to weigh shaft, marked St. Ex. Eq; Equilibrium lever lacks clevis pin, others complete

3 levers from arbors to weigh shaft

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