Box 28
Container
Contains 34 Results:
“Ohio History, Volume 75, Number 4,” James Leffel-Double Turbine Water Wheel Inventor, 1966
File — Box: 28, Folder: 31
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:
1966
Blank Form-Engineering Data, Instructions to Draftsman, Undated
File — Box: 28, Folder: 32
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
“Professional Engineer” Magazine, Oct. 1977
File — Box: 28, Folder: 33
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. 1977
“A New Concept,” A Springfield Publication, Apr. 1977
File — Box: 28, Folder: 34
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:
Apr. 1977
Memorandum-Mr. Groff, Aug. 1970
File — Box: 28, Folder: 35
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:
Aug. 1970
W-56-108, Combined Locks Paper Company, Combined Locks, WI-Correspondence and Drawings/Plans, 1956-1958
File — Box: 28, 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:
1956-1958
W-56-108, Combined Locks Paper Company, Combined Locks, WI - Correspondence, 1956-1958
File — Box: 28, 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:
1956-1958
Knoll Machinery Company, 4300 Perkins Ave., Cleveland, OH-Correspondence, 1973
File — Box: 28, 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:
1973
O’Brien Machinery Company-Correspondence, 1969-1971
File — Box: 28, 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:
1969-1971
Sales Data for Impulse Turbines, Dec. 1962
File — Box: 28, 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:
Dec. 1962
