https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=85951&pn=RE9,407 Injector Patentees: William Sellers - Philadelphia PA , J. Sellers Bancroft - Philadelphia PA Granted:1880-10-12
Assigned to William Sellers - Philadelphia PA

Abstract: Some of the improvements are applicable to all forms of injectors; but as all of them are applicable to the self-adjusting injector described in the United States Patent No. 141,173, granted to William Sellers July 22, 1873, the drawings represent this form of injector. It has been found in practice, on locomotives especially, that in the self-adjusting injectors as constructed previous to one present invention the jet of water is liable to be broken by sudden jars or shocks when running at high speeds over rough tracks., In the self-adjusting injector the combining-tube, and consequently the column of water flowing to the injector, are frequently thrown into vibrations or oscillations by irregular condensation of the steam-jet, or from exteral causes, and violent shocks are liable to produce these vibrations of the water-supply .n all injectors. In the self-adjusting injector these vibrations, when once started, continue regularly, with a constantly-increasing intensity, until the jet is so much disturbed that it is broken and the injector ceases to work. We discovered that with a self adjusting combining-tube the vibration caused by a shock not sufficient to produce this effect in she first instance, yet being imparted to and transmitted through the column of water flowing to the injector, was amplified with the distance traversed until it agitated such a body of water as to_ break the jet, and we discovered that this was due to the fact that the column of water flowing to the injector was rigidly confined. It is the object of the first branch of our invention to prevent this transmission of shock to any considerable distance through he column of water flowing to the injector and to this end our invention consists in modifying the rigid confinement of the column of water flowing to the injector by means of an elastic medium more susceptible of vibration than the column itself, and which will therefore prevent the transmission of shock beyond the elastic medium, while the vibrations set up by the shock, having their regularity interfered with by the elastic medium, are speedily arrested. This object we accomplish in the best mode known to us by the use of an air-chamber, constructed and combined with the injector, as hereinafter particularly described, but we contemplate using instead of this air-chamber other devices. Claim: In an injector, the combination of a water-supply pipe, an air-chamber, and a contracted conduit between the air-chamber and the water-supply pipe.
This is one of 85,241 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85950&pn=3,013,456 Plier with locking feature on pawl Patentee: Alf Ernferd Ericson - Lapeer MI Granted:1961-12-19
Manufactured by S. E. Tools - Lapeer MI

spring tensioned pawl engages notches on one jaw to hold adjustment, and can be positioned to allow free movement. An informant shared image of a CAL-VAN 452 pliers bearing the patent number, and noted S.E. Tools made "private label" tools.
This is one of 85,241 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85949&pn=2,172,561 Wrench Patentee: Frederick P. Kruse - Berkeley CA Granted:1939-09-12
Manufactured by Jo Mfg. Co. - South Gate CA
Assigned to Charles O. Bruce - unk. unk,

"The principal object of my invention .. is to provide a wrench for straining bolts and stud bolts to predetermined and uniformly accurate tension." The mechanism is a form of adjustable friction clutch. The patent was used in one style of Jo-Line torque wrenches, and was "improved" by a subsequent series of patents. (see also 2,310,759, 2743,678, 2,897,704 and 3,016,773) Jo Mfg. was acquired by K-D in 1979.
This is one of 85,241 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85946&pn=2,497,228 Groove scraping device Patentee: Leon B. Miller - Brooklyn NY Granted:1950-02-14

Piston ring groove scraper where the scraper portion is stationary, and the piston is rotated.
This is one of 85,241 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85944&pn=2,023,693 Flexible tool Patentee: Leon B. Miller - New York City NY Granted:1935-12-10
Manufactured by Leon B. Miller - Sheepshead Bay, N.Y.C. NY

The core of the patent is a shaft comprised of multiple layers of oppositely wound helical "spring" wire fused at the ends, and related handle and tool holding ends. The patent was the basis for flexible shaft screwdrivers and "nut driver" socket sets. Miller registered a form of "FLEXIBLE" as a trademark ca. 1935/1936. In 1940, Miller is listed at Brooklyn, NY.
This is one of 85,241 patents currently in the database at datamp.org

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