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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

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Handrails for 50 inch "Bull" Engine

Handrails for 50 inch "Bull" Engine

Components for 50 inch "Bull" Engine

Components for 50 inch "Bull" Engine

1876-1877
Staircase Handrail for 50 inch "Bull" Engine

Staircase Handrail for 50 inch "Bull" Engine

Rod for 50 inch "Bull" Engine

Rod for 50 inch "Bull" Engine

1876-1877
Rail for Pump Pit

Rail for Pump Pit

Components for 50 inch "Bull" Engine

Components for 50 inch "Bull" Engine

1876-1877
5 Cast Side Plates and Top Plate

5 Cast Side Plates and Top Plate

Bottom beam, front of engine furthest away from pit.

Bottom Beam

Bottom beam, rear (nearest towards pit).

Bottom beam, rear (nearest towards pit)

Cylinder beam, front

Cylinder beam, front

Length of feed pipe marked GWR Co

Length of feed pipe marked GWR Co

Cylinder with nozzles and bottom cover (lacking gland)

Cylinder with nozzles and bottom cover

Column

Column

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

Guide Frame for Piston Rod Cap

Cylinder beam rear

Cylinder beam rear

Transom

Transom

11 [checker?] rolled tread-plates for working floor, and a disc of plate to go under steam valve bonnet

11 checker? rolled tread-plates for working floor

Piston, complete with piston rod

Piston, complete with piston rod

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

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

Condenser cistern with condenser and air pump complete with bucket

4 bolts of 9 nuts for fixing piston rod gland

4 bolts of 9 nuts for fixing piston rod gland

Cataract loop and 2 guides for cataract rod

Cataract loop and 2 guides for cataract rod

Main steam valve

Main steam valve

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

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

3 catches from plug frame

3 catches from plug frame

Common joists for working floor with wooden bearing pieces

Common joists for working floor with wooden bearing pieces

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

Weigh post right with frame bolts and nuts and studs

Brass cleading ring for top of cylinder

Brass cleading ring for top of cylinder

Cylinder cover

Cylinder cover

Black museum box of approximately 31 screw-caps and associated parts (such as nuts and bolts). Parts of the 50 inch "Bull" engine built by Harvey and Company Limited, Hayle, Cornwall.

Brass Screw-Cap Grease Lubricators

1876-1877
Lever and weight of relief valve.

Lever and Weight for Relief Valve

Guide frame for piston rod cap, right

Guide frame for piston rod cap, right

Cast cleading plate for cylinder bottom

Cast cleading plate for cylinder bottom

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

3 swinging guides for rods

Head of weigh frame, with gland for plug rod

Head of weigh frame, with gland for plug rod

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 cast valve bonnets.

4 cast valve bonnets

Beam forming cill of weigh frame

Beam forming cill of weigh frame

Cataract on stand

Cataract on stand

Cast side plates (3 long & 1 short) and 4 cast top plates for cleading the plinth around the cylinder

Cast side plates

Piston rod cap with gib and cotter for piston rod, head of pump rod and y pieces assembled.

Piston Rod Cap with Gib and Cotter for Piston Rod

Three arbors from plug frame with all levers, sectors etc (marked St. Ex. & Eq for Steam, Exhaust, Equilibrium; fit in this order from top to bottom) and 'weigh shaft' with 3 levers and 2 hanging pillars with nuts & washers.

Three arbors from plug frame with all levers

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

3 hanging rods with weights

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

Iron staircase (1 tread broken but piece present) with wooden boards held to back by iron straps and dog bolts (wood in poor condition)

Iron staircase

Plug rod guide (bracket with gland) and packing plate.

Plug rod guide

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

Weigh post