https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=57330&pn=178,401,432 Improvements on Steam or Fire Engines-Three Bar Motion and Steam Carriage Patentee: James Watt - Birmingham, West Midlands County England Granted:1784-04-28
Manufactured by Boulton & Watt - Birmingham, West Midlands County England

Note: Early English patents were not originally numbered but they were later assigned consecutive numbers that run from #1 of 1617 to #14359 of September 1852. From Oct 1852 until 1916, patents were numbered by the year and started at patent #1 at the start of each year in January. The patent number used in DATAMP represents the year of issue and the patent number. This patent is #933 issued in the year 1769 This patent covers aspects of Watt's double-acting engine, where steam pressure was alternately applied to either side of the piston. This was also an "expansive" engine, meaning that it used steam under greater-than-atmospheric pressure. The patent specification also described the concept of the steam hammer, which is believed to be the first time that this idea was ever written down.
This is one of 83,770 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=84471&pn=577,914 Calf Weaner Patentee: George Cooley - Guthrie Oklahoma Territory Granted:1897-03-02
Manufactured by Cooley Mfg. Co. - Chicago IL

A wire muzzle with stiff heavy gauge wire frame; the specifications discuss problems of other "wire muzzle" type weaners this design addressed. A portion of the muzzle only provides "side protection," allowing the animal to graze and drink. This is the first of three patents noted by date in 1907 ads for the COOLEY WEANERs.
This is one of 83,770 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=84470&pn=1,267,482 Calf Weaner Patentee: Charles B. Wagner Jr. - Burlington WI Granted:1918-05-28
Manufactured by Wagner Specialty Co. - Burlington WI

The hinged nose piece is attached by a hinge-like structure to a stamped metal compound curved "body." This weaner appears as "KANT-SUK," replacing the earlier cast metal form based on patent 967,468.
This is one of 83,770 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=84469&pn=967,468 Calf Weaner Patentee: Charles B. Wagner Jr. - Burlington WI Granted:1910-08-16
Manufactured by Imperial Bit & Snap Co. - Racine WI

The device includes a hinged nose piece with lateral extensions, and a hanging guard to cover the mouth. The structure is intended to include preventing sucking by tongue extension. Made of cast parts; ads for KANT-SUK show date markings for this patent and a subsequent improvement. Ads showing Imperial Bit & Snap Co. may reflect distribution arrangements; as Wagner Specialty Co. appears on later ads as well.
This is one of 83,770 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=84462&pn=419,078 Calf Weaner Patentee: Samuel E. Shaw - Scranton City IA Granted:1890-01-07
Manufactured by Carroll Muzzle Co. - Caroll IA
Assigned to J. E. Griffith - Carroll IA

A smooth wire muzzle attached to a leather strap is set up to swing up sufficiently to allow grazing and drinking, but drops over the front of the nose and mouth to prevent sucking when the head is raised. Advertising notes the smooth muzzle does not irritate or injure the udder which is the target of the attempted sucking. An 1892 write-up for Shaw's Calf Weaner names the manufacturer. A 1901 PHARMACEUTICAL JOURNAL write-up shows SHAW'S PATENT weaner available in London. The patent was the subject of a patent infringement lawsuit (Griffith v. Shaw, et. al.) The finding was the claim in this patent was very narrow and not infringed by Shaw's subsequent patent 495,378.
This is one of 83,770 patents currently in the database at datamp.org

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