US Patent: 21,059
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| Steam-Engine
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Patentees:
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| Frederick I. L. Blandy (exact or similar names) - Zanesville, Muskingum County, OH |
| Henry Blandy (exact or similar names) - Zanesville, Muskingum County, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Aug. 03, 1858 |
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Joel Havens
"Vintage Machinery" entry for H. & F. Blandy
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Description: |
| The inventors' firm, H. & F. Blandy, also made sawmills.
This invention was featured on the front page of the 1860-04-28 issue of "Scientific American".
The inventors applied for an extension to this patent. The Patent Commissioner's report said, in part, "The invention covered by the patent upon which an extension is sought relates to a class of steam-engines which, from their extensive employment in connection with saw, flour, and grist mills, and in the various operations of the farm and in mines, have come to exercise an important influence in the material development of the country. The portable steam-engine differs from the stationary engine in that it calls for a much greater degree of lightness, simplicity, and compactness; yet these qualities are not to be secured at the expense of strength and durability. These various features have been attained to an eminent degree by the invention in question. The mode of construction adopted was to erect the engine upon a separate frame or foundation from the boiler. The Blandys' invention was to interpose between the boiler and the engine a hollow continuous bed-plate, upon which the entire working parts of the latter should be supported. The form adopted for the bed-plate was a hollow cylinder. The advantages of this construction are attested by numerous competent and disinterested witnesses, expert machinists and practical engineers. The inventors themselves have manufactured and sold during the term of the patent more than a thousand engines in which it constitutes the distinguishing feature.
"The statement of account shows that the net profits received on account of the invention are but a trifle more than nine thousand dollars. A much larger amount than this might have been realized, according to the applicants statement, but for the constant infringements that have been going on, and which it is alleged have thrown upon the market numerous competing machines of inferior workmanship, at prices that have obliged the patentees to sell at figures but little if any above fair manufacturers' profits." The extension was granted. |
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