https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=84323&pn=575,398 Gear Cutting Machine with Safety Stop Patentees: Ulrich Eberhardt - Newark, Essex County NJ , Henry E. Eberhardt - Newark, Essex County NJ , Fred L. Eberhardt - Newark, Essex County NJ Granted:1897-01-19
Manufactured by Gould & Eberhardt - Newark, Essex County NJ

Abstract: The present invention relates to that class of gear-cutting machines in which the driving-pulley is rotated continuously and operates intermittingly and automatically upon a train of change-wheels to turn the blank into successive positions for cutting a series of teeth therein, and in which the change-wheels are sometimes connected directly with the cutter-spindle, so as to rotate the same in unison with the blank when "hobbing" or cutting worm-teeth in the same. In this class of machines the cutter is reciprocated to and from the blank by a cutterhead actuated by a feed- screw with suitable clutch mechanism to reverse its rotations automatically, and the present invention furnishes a safety-stop to hold such clutch mechanism in a neutral or inoperative position until the blank is properly rotated, and thus avoid the cutting of the same at an improper point. Claim: In a gear-cutter, the combination, with a cutterhead and reversing- gear having a clutch-shifter, of change-wheels and a stop-disk rotated thereby, and having a circular periphery mith notch in the edge, and a pawl suitably connected to the clutch-shifter and provided with a tooth to engage the notch, and adapted to rest upon the circular periphery of the stop-disk, and to thereby hold the clutch-shifter in a neutral position throughout the entire rotation of the disk until the tooth enters such notch.
This is one of 83,660 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=84322&pn=587,177 Grinding Mill Patentee: David W. Bovee - Waterloo, Blackhawk County IA Granted:1897-07-27
Manufactured by Iowa Grinder & Steamer Works - Waterloo, Blackhawk County IA

Also, see patent #575,588. Abstract: This invention has reference to grinding- mills, and relates more particularly to sweep-mills in which the grinders have their operating-surfaces arranged at about an angle of forty-five degrees. In order to grind corn and other grains, it has frequently been found necessary to set the grinders quite close together. Otherwise the grain will drop down from between them before being properly ground and crushed. Such grinding is faulty and incomplete, and in addition thereto the grinder-surfaces, owing to their close proximity and in many instances actual contact, soon become so worn as to be useless, putting the millowner to the expense of renewing them. Claim: The combination with vertical cone grinding surfaces, of a vertically and horizontally adjustable retainer supported below and adjacent the exit-space of the grinding-surfaces.
This is one of 83,660 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=84321&pn=575,588 Feed Grinder Patentee: David W. Bovee - Waterloo, Blackhawk County IA Granted:1897-01-19
Manufactured by Iowa Grinder & Steamer Works - Waterloo, Blackhawk County IA

Also, see patent #587,177. Abstract: This invention pertains to grinding-mills and the object of the same is to provide a mill of simple and improved construction for more effectually grinding corn and other grain. Claim: In a grinding-mill, the combination of the inner cone-shaped grinder, a rotatable shell, a grinder movable therewith and depending adjacent to the cone-shaped grinder, and the vertically-adj astable grinding-wall arranged adjacent to and inclosing the movable grinder.
This is one of 83,660 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=41209&pn=D177,636 Wrench Patentees: Walter R. Meier - Hamburg NY , Hollis R. Ross - Buffalo NY Granted:1956-05-08
Manufactured by Crescent-Niagara - Buffalo NY
Assigned to Barcalo Mfg. Co. - Buffalo NY

Design marketed as the TAPER DESIGN, with handles angled to clear surfaces and lessen chances for scraped knuckles. Also used for CRESCENT "LIFETIME" box end wrenches after CRESCENT's acquisition of BARCALO in 1963.
This is one of 83,660 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=84308&pn=62,138 Carpet Stretcher Patentee: William J. Johnson - Newton, Middlesex County MA Granted:1867-02-19
Assigned to H. A. Hildreth - Lowell, Middlesex County MA

Abstract: The nature of my invention consists in providing a mechanical device sufficiently magnetized to receive and hold a tack or nail preparatory" to its being driven into wood, or any other material, in any direction or angle. Claim: I claim a carpet stretcher with a piston, or its equivalent, magnetically charged.
This is one of 83,660 patents currently in the database at datamp.org

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