Worthington Simpson Simplex

Source

Worthington-Simpson Ltd., Newark, England.

Description

There are two principle versions, boiler feed and light service. The boiler feed specifications are shown below.

Boiler Feed
Size
SteamxPumpxStroke
Gallons / hour
(water)
Piston Speed
ft per minute
Size
SteamxPumpxStroke
Gallons / hour
(water)
Piston Speed
ft per minute
3"x1"x3" 72 40 10"x7"x15" 4100 18
3"x2"x4" 192 33 10"x7"x18" 4640 17
4"x2"x4" 240 33 10"x7"x21" 4770 15
4"x2"x6" 360 27 10"x7"x24" 5094 14
5"x3"x7" 660 25 12"x8"x24" 7416 14
6"x4"x8" 1140 23 14"x10"x24" 10440 14
7"x5"x12" 1760 19 16"x11"x24" 12540 14
8"x6"x12" 2520 19 16"x12"x24" 15000 14
10"x7"x12" 3480 19 - - -

The light service specifications are shown below.

Light Service
Size
SteamxPumpxStroke
Gallons / hour
(water)
Piston Speed
ft per minute
Size
SteamxPumpxStroke
Gallons / hour
(water)
Piston Speed
ft per minute
3"x4"x4" 1180 60 7"x8"x12" 8700 35
4"x5"x6" 2340 50 8"x10"x12" 13550 35
4"x6"x6" 3370 50 10"x10"x12" 13550 35
6"x7"x8" 6350 50 10"x12"x12" 19400 35
6"x7"x12" 6630 35 12"x14"x12" 16500 35

Construction

The steam cylinder is cast iron and the valve gear is of 'marine' type and is self aligning. The auxiliary plunger is cast iron fitted with snap rings. The steam piston rod is steel and the pumping rod is bronze with studded glands. The pumping end is cast iron, fitted with gunmetal liner or entirely of gunmetal. The pump valve, seats and guards are bronze.

Collection

There is one Worthington Simpson Simplex steam pump in the collection.

  • Simplex vertical 4x2x4, No.5004997, 1943, HM Dockyard Portland

Simplex vertical 4x2x4, No.5004997, 1943, HM Dockyard Portland

Size: 4" steam cylinder, 2" pumping cylinder with 4" stroke.

The history is unknown, but the pump is believed to have been used in H M Dockyard Portland as a boiler water feed pump. It was obtained by an enthusiast in the early 1970's from Portland and remained in store for 23 years until purchased in 1993.

The pump is complete and has been fully stripped, cleaned and repainted. The small bore of the steam passages tend to indicate that the pump was designed to run on high pressure steam. Initial attempts to run on compressed air have been unsuccessful.