https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=84717&pn=1,790,550 Grinding Machine Patentee: Maxwell I. Mathewson - Providence, Providence County RI Granted:1931-01-27
Manufactured by Brown & Sharpe Mfg. Co. - Providence, Providence County RI
Assigned to Brown & Sharpe Mfg. Co. - Providence, Providence County RI

Abstract: The invention relates to grinding machines and more particularly to that type of machine in which the grinding wheel is mounted on a carriage to move toward and away from the work and the work is mounted on a work supporting table to move back and forth longitudinally of the grinding wheel spindle. The objects of the invention are to reorganize and improve the construction and operation of the several cooperating elements of a grinding machine to secure a smoother and more efficient operation of the machine, to eliminate all unnecessary shock or jar in starting and stopping the work supporting carriage, to increase the speed at which machines of this type may be operated, to extend still further the automatic operation of the several cooperating elements, and finally to secure a more adequate control of these elements by the operator. Claim: A grinding machine having, in combination, a reciprocating table for supporting the work, a table drive, a reversing mechanism for controlling the reciprocation of the table from the table drive, mechanism 8~ for imparting a dwell in the movement of the table at each end of its reciprocating movement, and means for cushioning the movement of the table drive to move the table in an opposite direction.
This is one of 84,015 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=84716&pn=1,583,351 Grinding Machine Patentees: James N. Heald - Worcester, Worcester County MA , Albert Turner - Worcester, Worcester County MA Granted:1926-05-04
Manufactured by Brown & Sharpe Mfg. Co. - Providence RI
Assigned to Heald Machine Co. - Worcester, Worcester County MA

This patent number was on a Brown & Sharpe surface grinder Patent Plate. Abstract: he present invention relates to grinding machines. The invention resides in the novel combination and arrangement of parts hereinafter fully described, of especial utility in the construction and operation of a grinding machine adapted to operate on cylindrical or similar surfaces. Claim: In a grinding machine, the combination with a table for supporting the work, of means operable by fluid pressure for reciprocating said table, an electric motor carried by said table for rotating the work, and a common control device for said motor and the fluid pressure supply.
This is one of 84,015 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=84715&pn=3,286,598 Duplicating Milling Machine Patentee: Johann Müller - Munich, Munich District Bavaria, Germany Granted:1966-11-22
Manufactured by Friedrich Deckel Praezisions Mechanik und Maschinenbau - Munich, Munich District Bavaria, Germany
Assigned to Friedrich Wilhelm Deckel - Zug Zug Canton, Switzerland

Claims priority in Germany, 15 Nov 1963. Abstract: This invention relates broadly to a duplicating milling machine having a workpiece and model table adapted for movement in three coordinate directions and more particularly to such a duplicating milling machine having a spindle turret, carrying machining tools at opposite ends, mounted on the upper side of the machine standard for pivotal movement about a vertical axis. By turning the spindle turret of such a machine, one or the other of the machining tools is brought into operating position over the workpiece and model table. Claim: A duplicating milling machine comprising, a machine standard having an upper surface and a vertical axis, a table adapted for movement in three coordinate directions and adapted to hold a workpiece and model operatively connected to said machine standard, a turret portion connected to the upper surface of said machine standard for pivotal movement about the vertical axis thereof, first and second machine tool means connected at opposite ends of said turret portion in operative relation to said table, said first machine tool means including a roughing spindle, a hydraulic feeler connected adjacent said roughing spindle, hydraulic control means connected to said table and said hydraulic feeler whereby said hydraulic feeler is connected to selectively move said table through said hydraulic control means in three coordinate directions relative to said roughing spindle, said second machine tool means comprising a precision duplicating tool connected for movement in three coordinate directions relative to a fixed position of said table, guide means connected to said precision duplicating tool for moving said precision duplicating tool by hand and said turret portion being pivotal from a first position to a second position to successively dispose said first and second machine tool means in operative position above said table.
This is one of 84,015 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=84713&pn=2,494,089 COMBINED TOOL Patentee: Joseph Paul Guignabert - Thiers France Granted:1950-01-10

"My invention covers a novel industrial product constituted by a nut wrench incorporating a screw driver and adapted to form if required also shears for cutting thin metal sheets or wires of small diameter." Known example marked NERVOR reflect production for a French motorcycle engine manufacturer. ESPACENET also has corresponding patents from several European countries; "Clé à écrous avec tournevis combiné " (FR911097) is the original.
This is one of 84,015 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=53126&pn=639,162 Pipe Wrench Patentee: Robert Fjellman - Wilmot SD Granted:1899-12-12
Assigned to Adrew Parker - Brown Valley MN

The main bar has pipe gripping teeth on one side, and a recess on the opposite side. The adjustable jaw has provision for inserting a roller cutter. It removes from the main bar and installs facing the side with the recess when used as a cutter. A known example marked, "FJELLMAN WRENCH & CUTTER PAT DEC. 12, 1894 / 4" lacks the cutter.
This is one of 84,015 patents currently in the database at datamp.org

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