US Patent: 23,032 - Steam-pressure gage


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US Patent: 23,032

Steam-pressure gage

Patentee:

Thomas W. Lane (exact or similar names) - Meredith, NH

USPTO Classifications:

73/737

Tool Categories:

propulsion and energy : steam apparatus : stationary boilers : steam pressure gauges

Assignees:

None

Manufacturer:

American Steam Gauge Co. - Boston, MA

National Steam Gauge Co. - Boston, MA

Witnesses:

Samuel Cooper

Thomas S. Roach

Patent Dates:
Granted:	Feb. 22, 1859

Reissue Information:
Reissued as RE5,320 (Mar. 11, 1873)

Patent Pictures:

USPTO (New site tip)
Google Patents
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Vintage Machinery entry for National Steam Gauge Co.
Vintage Machinery entry for American Steam Gauge Co.

Description:

This is an improvement to the Bourdon steam gauge of patent 9,163. We know that this patent was used by American Steam Gauge Co. of Boston because "T. W. Lane's improvement" to the Bourdon gauge in mentioned in an 1860 announcement that American Steam Gauge Co. was merging with National Steam Gauge Co. (in fact, American was buying out National). An 1877 ad for American Steam Gauge Co. features a gauge that says on the face, "American Steam Guage Co. / Boston. / Sole Proprietors & manufs. / of the / Bourdon / Steam Gauge. / T. W. Lane's Improvement. / Patented Feb 22d 1859."