Box 20
Container
Contains 68 Results:
How Much Combustion Space is Really Necessary (No Photos), Undated
File — Box: 20, Folder: 1
Scope and Content
From the Collection:
The James Leffel and Company Records document the activities of a company established in 1862 by James Leffel, inventor of the double turbine water wheel. The double turbine water wheel had a solid reputation and was marketed throughout the United States and overseas. By the 1930s and 1940s, the company had expanded into producing hydraulic turbines, along with scotch boilers and stokers. The records are divided into nine series based on the type of documents the series contains. However,...
Dates:
Undated
Space Requirements-Leffel vs Competitive Types of Boilers (No Photos), 1939
File — Box: 20, Folder: 2
Scope and Content
From the Collection:
The James Leffel and Company Records document the activities of a company established in 1862 by James Leffel, inventor of the double turbine water wheel. The double turbine water wheel had a solid reputation and was marketed throughout the United States and overseas. By the 1930s and 1940s, the company had expanded into producing hydraulic turbines, along with scotch boilers and stokers. The records are divided into nine series based on the type of documents the series contains. However,...
Dates:
1939
M-525, Shop View, Undated
File — Box: 20, Folder: 3
Scope and Content
From the Collection:
The James Leffel and Company Records document the activities of a company established in 1862 by James Leffel, inventor of the double turbine water wheel. The double turbine water wheel had a solid reputation and was marketed throughout the United States and overseas. By the 1930s and 1940s, the company had expanded into producing hydraulic turbines, along with scotch boilers and stokers. The records are divided into nine series based on the type of documents the series contains. However,...
Dates:
Undated
Refuse Wood Burning Boiler Data (No Photos), 1956-1961
File — Box: 20, Folder: 4
Scope and Content
From the Collection:
The James Leffel and Company Records document the activities of a company established in 1862 by James Leffel, inventor of the double turbine water wheel. The double turbine water wheel had a solid reputation and was marketed throughout the United States and overseas. By the 1930s and 1940s, the company had expanded into producing hydraulic turbines, along with scotch boilers and stokers. The records are divided into nine series based on the type of documents the series contains. However,...
Dates:
1956-1961
Arnold, Inc., Los Angeles, CA Letter (No Photographs), Oct. 1938
File — Box: 20, Folder: 5
Scope and Content
From the Collection:
The James Leffel and Company Records document the activities of a company established in 1862 by James Leffel, inventor of the double turbine water wheel. The double turbine water wheel had a solid reputation and was marketed throughout the United States and overseas. By the 1930s and 1940s, the company had expanded into producing hydraulic turbines, along with scotch boilers and stokers. The records are divided into nine series based on the type of documents the series contains. However,...
Dates:
Oct. 1938
Comparative Cost of Industrial Fuels-H 12 (No Photos), Undated
File — Box: 20, Folder: 6
Scope and Content
From the Collection:
The James Leffel and Company Records document the activities of a company established in 1862 by James Leffel, inventor of the double turbine water wheel. The double turbine water wheel had a solid reputation and was marketed throughout the United States and overseas. By the 1930s and 1940s, the company had expanded into producing hydraulic turbines, along with scotch boilers and stokers. The records are divided into nine series based on the type of documents the series contains. However,...
Dates:
Undated
Memorandum 1-3-44, Feeding Rate, Motor Size, Shipping Weight, Leffel Stokers (No Photos), Jan. 1944
File — Box: 20, Folder: 7
Scope and Content
From the Collection:
The James Leffel and Company Records document the activities of a company established in 1862 by James Leffel, inventor of the double turbine water wheel. The double turbine water wheel had a solid reputation and was marketed throughout the United States and overseas. By the 1930s and 1940s, the company had expanded into producing hydraulic turbines, along with scotch boilers and stokers. The records are divided into nine series based on the type of documents the series contains. However,...
Dates:
Jan. 1944
MAJAC, Inc. (Designers & Manufacturers of Pulverizing Classifying & Separating Equipment), Sharpsburg, PA (No Photos), 1958
File — Box: 20, Folder: 8
Scope and Content
From the Collection:
The James Leffel and Company Records document the activities of a company established in 1862 by James Leffel, inventor of the double turbine water wheel. The double turbine water wheel had a solid reputation and was marketed throughout the United States and overseas. By the 1930s and 1940s, the company had expanded into producing hydraulic turbines, along with scotch boilers and stokers. The records are divided into nine series based on the type of documents the series contains. However,...
Dates:
1958
Photo 2267-Showing rear end of Small Boiler with Cor. Firebox and 8’ Cir. Tube and Seamless Dome, Undated
File — Box: 20, Folder: 9
Scope and Content
From the Collection:
The James Leffel and Company Records document the activities of a company established in 1862 by James Leffel, inventor of the double turbine water wheel. The double turbine water wheel had a solid reputation and was marketed throughout the United States and overseas. By the 1930s and 1940s, the company had expanded into producing hydraulic turbines, along with scotch boilers and stokers. The records are divided into nine series based on the type of documents the series contains. However,...
Dates:
Undated
Photo 2365-Stock of Leffel Stokers & Boilers, Undated
File — Box: 20, Folder: 10
Scope and Content
From the Collection:
The James Leffel and Company Records document the activities of a company established in 1862 by James Leffel, inventor of the double turbine water wheel. The double turbine water wheel had a solid reputation and was marketed throughout the United States and overseas. By the 1930s and 1940s, the company had expanded into producing hydraulic turbines, along with scotch boilers and stokers. The records are divided into nine series based on the type of documents the series contains. However,...
Dates:
Undated
