Datamp.org Patents https://www.datamp.org/ Recently added patents en-us US Patent: 527,557 https://www.datamp.org/patents/displayPatent.php?id=18796&pn=527,557 Speed Indicator for Shafting Patentee: William Thomas Lintner - Gloversville, Fulton County NY Granted:1894-10-16
Manufactured by Harvey Hubbell Mfg. Co. - Bridgeport, Fairfield County CT
Assigned to William L. Sporburg - Gloversville, Fulton County NY

W. E. Hagan -patent attorney
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US Patent: 306,760 https://www.datamp.org/patents/displayPatent.php?id=85506&pn=306,760 Leather Splitting Machine Patentee: John T. Krebs - Cleveland, Cuyahoga County OH Granted:1884-10-24
Manufactured by H.F. Osborne & Co. - Newark, Essex County NJ
Assigned to William A. King - Cleveland, Cuyahoga County OH

Abstract: This invention relates to machines for splitting leather and it consists in a new and novel io construction and arrangement of mechanism in which there is a knife, combined with adjustable rollers, and a roller-setting mechanism provided with a graduated scale, whereby the operator readily adjusts the machine to any required degree, enabling him to maintain a uniformity in thickness in splitting leather, the object of which is to provide a machine which requires- no calculating, testing, or trying to adjust, resulting in a saving of time and labor. Claim: In a leather splitting machine, the combination, with the splitting-knife, of a mechanism, substantially as described, constructed and arranged to hold the roller adjustably in its relation to the knife, and a graduated scale mechanism constructed and arranged for setting and holding the said roller-holding mechanism.
This is one of 84,799 patents currently in the database at datamp.org

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US Patent: 1,145,706 https://www.datamp.org/patents/displayPatent.php?id=85507&pn=1,145,706 Computing Rule Patentee: Edward D.N. Schulte - Troy NY Granted:1915-07-06
Manufactured by Lufkin Rule Co. - Saginaw MI
Assigned to W. & L. E. Gurley - Troy New York

The pictured example, marked PAT APPIED FOR, appeared in a Martin Donnelly auction
This is one of 84,799 patents currently in the database at datamp.org

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US Patent: 493,341 https://www.datamp.org/patents/displayPatent.php?id=85505&pn=493,341 Lamp Patentee: John H. Purdy - Chicago, Cook County IL Granted:1893-03-14
Manufactured by John H. Purdy Co. - Chicago, Cook County IL

Abstract: My invention relates to spherical lamps more especially adapted for jewelers' use, and consists of an improvement upon Letters-Patent No. 232,206, issued to me on the 14th day of September, 1880. In said Letters-Patent I have described and shown a lamp, the body of which is spherical in form and arranged to rest loosely in a cup-shaped base,-the object of this construction being to tilt the lamp to any desired angle; but, as there is nothing in said construction to serve as a counterpoise for the wick-tube, great difficulty has been heretofore experienced in keeping the same in position when placed at a given angle. Claim: The combination in a lamp of a cup shaped base, a spherical lamp body loosely mounted therein, and a wick tube, the walls of said lamp body being made thicker at the bottom or opposite the wick tube, substantially as shown and described.
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US Patent: 186,513 https://www.datamp.org/patents/displayPatent.php?id=13576&pn=186,513 Improvement in Countersinks Patentee: Dummer J. Adams - Kittery ME Granted:1877-01-23

Countersink with a slit conical head, slit bit that is adjusted longitudinally, and a securing screw. The 1856 New England Business Directory lists Dummer Adams of Kittery as a blacksmith. Know examples are marked with the patent date. It seems most likely that they were manufactured by the inventor, but we have found no direct evidence.
This is one of 84,799 patents currently in the database at datamp.org

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