44
THE SEVERN TUNNEL.
Commencement of the works—1880. exertions the pump was again ready for starting on the 12th October.
A new H-piece had also been provided for the 26-inch plunger attached to the 50-inch Bull-engine in the Iron Pit, and spare valve-pieces and valves for both the 26-inch pumps.
The new working-barrel valves and the valve-piece for the large pump were made 35 inches in diameter instead of 38 inches, and the pump was from this time spoken of as the 35-inch pump.