https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=15599&pn=188,262 Pliers Patentee: Henry R. Russell - Swarthmore College PA Granted:1877-03-13
Manufactured by Hagstoz & Thorpe - Philadelphia PA

This patent improves Russell's Oct. 19, 1875 patent (no. 168,924) by strengthening the jaws and modifying the joints to keep out dirt. A parallel jaw pliers marked "PAT OCT 19, 75 & MAR 13, 77" corresponds to these patents. One mid-1877 write-up notes initial production of the pliers (sized for jewelry work) by Hagstoz & Thorpe (Philadelpia), followed by a vise based on the same adjusting principle. Another notice mentions multiple jaw styles including cutters. They are listed among the exhibits at the 1878 Paris "World's Fair." Russell's Parallel Pliers appear in standard hardware trade lists well into the 1890s. Hagstoz & Thorpe were also assignees of Quirk's parallel jaw pliers patent 188,408.
This is one of 84,843 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85549&pn=580,924 Firearm Patentee: John Moses Browning - Ogden UT Granted:1897-04-20

This patent is one of four issued to Browning on this date—out of 128 in total that were issued to Browning in his lifetime—that provide the ideas used by almost every modern pistol. The invention relates to "automatic breech-loading firearms" that are operated by the recoil of the breech block or bolt carrier. A mechanism is provided for such a firearm that also prevents the hammer from being released until the breech is closed and all parts are in position to discharge the cartridge, and then held in the discharged position until the trigger is released. The mechanism uses a barrel that moves longitudinally and at the same time move slightly upward so as to lock breech, move with the breech block by the recoil, and eject the spent cartridge.
This is one of 84,843 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85548&pn=580,923 Firearm Patentee: John Moses Browning - Ogden UT Granted:1897-04-20

This patent is one of four issued to Browning on this date and they provide the ideas used by almost every modern pistol. The invention relates to "automatic magazine-firearms" that are operated by the explosive gases. The innovation is a means to disable the hammer after a single discharge until the trigger has been released, and to prevent the trigger release until the mechanism is in position to discharge the cartridge.
This is one of 84,843 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85547&pn=441,390 Magazine-gun Patentees: John Moses Browning - Ogden City UT , Matthew Sandifer Browning - Ogden UT Granted:1890-11-25
Manufactured by Winchester Repeating Arms Co. - New Haven CT
Assigned to Winchester Repeating Arms Co. - New Haven CT

The invention is a greatly improved pump-action shotgun. Loading and ejection are from the under-side of the breech which kept the ejected shells out of the line of sight of the shooter. The mechanism allowed the shooter to hold down the trigger and fire automatically as the ejection mechanism was cycled. This invention was produced as the Winchester Model 1887, and then as the Model 1897 which was designed to accommodate the new and more powerful smokeless gunpowder. The 1897, which was in production for over 60 years, remains one of the most popular shotguns ever made.
This is one of 84,843 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85546&pn=421,663 Magazine fire-arm Patentees: John Moses Browning - Ogden City UT , Matthew Sandifer Browning - Ogden UT Granted:1890-02-18
Manufactured by Winchester Repeating Arms Co. - New Haven CT
Assigned to Winchester Repeating Arms Co. - New Haven CT


This is one of 84,843 patents currently in the database at datamp.org

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