General Information

Serial #

40-03

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

Cast iron/ steel/ bronze

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

6.1 m

Width

1.4 m

Height

1.5 m

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Industrial Technology

Category

Power sources

Sub-Category

N/A

Manufacturer

AKA

Leonard

Country

Canada

State/Province

Ontario

City

London

Context

Country

Canada

State/Province

Ontario

Period

1942-1968

Canada

Elijah Leonard started E. Leonard & Sons in London, Ontario in the year 1840. The shop manufactured agricultural and railroad equipment, but mainly manufactured steam boilers and steam engines. Elijah Leonard became mayor of London in 1857. The engine was donated by McRae Lumber Co., a lumbering shop operating in the Algonquin park area since 1922.

Function

Steam engine powered by steam which moves a piston back and forth by expansion and compression. This is a Corliss model, which could subject the speed to precise control because it could automatically vary the length of time during which steam would enter the cylinder due to a system of oscillating valves. Steam at atmospheric pressure would fill up the space underneath a piston in a cylinder while it was lifted by a counterweight beam.

Technical

Corliss engines were very user-friendly and were capable of delivering a uniform flow of power in spite of sudden changes in load. They permitted higher speeds while reducing the frequency of breakage in threads. Mainly used in the textile and metallurgy industries. Used four semi-rotary valves, two for the admission of steam and two for exhaust. Stationary engine, 20x36inches, 90rpm.

Area Notes

Unknown

Details

Markings

Mfr's name plates on each side of the cylinder jacket/ large specification plate on R.H. side of engine bed

Missing

N/A

Finish

Painted black/ nickel-plated & polished components (presently rusty)

Decoration

N/A