https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=14949&pn=20,211 Improved Mode of Fixing the Movable Jaws of Adjustable Wrenches Patentee: James McKenzie - Green Island NY Granted:1858-05-11
Manufactured by James McKenzie - Troy NY

The sliding jaw adjustment is held in position by a laterally sliding toothed wedge-shaped key that engages teeth cut in the wrench shank. Ken Cope's "American Wrench Makers 1830-1930" cites an 1859 "Scientific American" listing for the McKenzie combination screwdriver and quick adjust wrench. One known example is marked " J. M. [Mc?] KENZIE PAT.D May 11, 1858 " -- It does not have a screwdriver on the end, nor a socket where one could have been inserted. Examples with the socket are also extant.
This is one of 84,713 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=25320&pn=357,986 Wrench Patentee: Alfonso D. Gates - Cleveland OH Granted:1887-02-15
Manufactured by Lorain Wrench Co. - Lorain OH
Assigned to A. S. Deutsch - Cleveland OH

The handle, stock and fixed jaw appear to be single piece of metal. The movable jaw slides in a slot, and is adjusted by a bolt which extends through the fixed jaw end of the wrench. A retaining piece is inserted in the same opening. Gates' Feb. 12, 1889 patent (no. 397,794) elaborates related manufacturing processes involving welding or brazing component parts. This design also received Canadian patent no. CA-28,873 granted April 12, 1888. Wrench collectors called this the "GATES BULL Wrench" which is most likely a mis-reading of "GATES BOLT WRENCH." If anyone has seen a contemporary product ad for this wrench, please contact the steward (use the "Report data errors.." link). Note: The LORAIN WRENCH shown in 1890 write-ups had the adjusting screw next to the handle - like a "monkey wrench", rather than on the "head" end. No corresponding patent has been identified.
This is one of 84,713 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85412&pn=172 Blast Furnace Patentee: John Barker - Philadelphia PA Granted:1837-04-20

Abstract: The drawing shows a section of an ordinary sized smelting-furnace on a scale of an inch to a foot, and represents such part thereof as is necessary to a clear understanding of my invention, which consists in a mode of introducing the air from the blowing apparatus diffusedly-without impinging upon the ignited fuel, as it does when introduced through the tuyere in the ordinary way, by which diffusion there is an essential difference in the results produced, the action of the air being, from the very commencement of its introduction, by gradual and easy pressure. Claim: The diffusing of the blast in a chamber as it enters a furnace.
This is one of 84,713 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=27060&pn=231,454 Wrench Patentee: Amos Shepard - Plantsville CT Granted:1880-08-24

The patent is for the two-piece construction of the shank and handle; this design was to be made of malleable iron. Shepard's other wrench designs were produced by Peck, Stow & Wilcox. A known example somewhat resembles the malleable iron wrenches made by O.B. North 186,185, and can be mistaken for one.
This is one of 84,713 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85411&pn=D175,853 Combination Knife and Wrench Set Patentee: Emil S. Polk - New York NY Granted:1955-10-18
Manufactured by Coricama - Maniago Italy

Patent is the design for combination knife and wrench set as shown in the drawing. The small wrench slides into a metal sheath on one side. Markings on a known example include "PIRELLI" and "PCM (around a star logo) FABBRICATO IN ITALIA (in a circle logo)" and "CORICAMA INOXID--MODELLO DEPOSITATO" on one blade. Design patents D51,051 and D134,188 are cited as references.
This is one of 84,713 patents currently in the database at datamp.org

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