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US Patent: 33,751
Improvement in oilers
Patentee:
Leverett Homer Olmsted (exact or similar names) - Stamford, CT

USPTO Classifications:
222/109, 222/206

Tool Categories:
industrial tools : tool lubricators : oil cans

Assignees:
None

Manufacturer:
J. H. White - Newark, NJ
L. H. Olmsted - Stamford, CT

Witnesses:
Charles S. Hall
Thomas Fleetwood

Patent Dates:
Granted: Nov. 19, 1861

Patent Pictures: [ 1 | 2 ]
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Vintage Machinery entry for L. H. Olmsted
Description:
The invention is an oil can with a weighted hemispherical bottom that has no seam submerged in oil and that will tend to stay upright when set down. The cover flexes to slightly pressurize the oil and thus expel a drop or two. An example has been seen, marked "L. H. Olmsted's pat. Nov. 19, 61".

We have seen numerous catalog listings from the late 1860s and early '70s for "Olmstead's Oiler"; note the variant spelling of the surname. These were made by J. H. White of Newark. See patents 42,593 and 54,394 for improvements.

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