If you find a patent number or patent date by this manufacturer that is not on this
list, please contact the Site Historian.
Key to Links for Patent Information
USPTO = U.S. Patent Office .
Images of the actual patent can be viewed on the U.S. Patent Office web site but
a special TIFF viewer must be installed with your browser in order properly work.
More information on how to configure your computer to view these patents can be
found at TIFF image Viewers
for Patent Images.
DATAMP = Directory of American Tool And
Machinery Patents . A sister site to VintageMachinery.org with information
on patents related to machinery and tools. A much easier user interface than the
USPTO's for finding information on machinery patents.
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490,676
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Jan. 31, 1893
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Adjustable die-stock
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Herman W. Oster |
Cleveland, OH |
This patent die stock was seen in an ad in the June 1905 issue of Canadian Machinery. It is labeled, "OSTER MFG. CO. CLEVELAND OHIO / PAT'D JAN 31, 1893". The ad copy says, "No two makes of pipe and fittings have the same standards of sizes. No two lots of the same maker's goods are exactly the same size. No steam tight joint with lead is as good as one without it. No solid, split or semi-adjustable die stock will enable you to mean the variations and make perfect joints. No other than the OSTER ADJUSTABLE will do it satisfactorily." |
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925,220
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Jun. 15, 1909
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Geared Die Stock
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Herman W. Oster |
Cleveland, Cuyahoga County, OH |
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1,707,478
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Apr. 02, 1929
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Grooving Tool
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Ralph E. Hyde |
Cleveland, Cuyahoga County, OH |
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