https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=85455&pn=216,934 Combination Tool Patentee: Erich Edelmann - Chicago IL Granted:1922-03-21
Manufactured by E. EDELMANN & Co. - Chicago IL

Light weight "ball pein" hammer with multiple size nested screwdrivers stored in the handle. Corresponds to British patent GB-142,008 and U.S. Design patent D54,162. Produced as Edelmann's "HAN-D" hammer. The arrangement of the screwdrivers resembles Edelmann's earlier 4-in-1 screwdriver (where the two smallest sizes are "loose" inside the next larger size), rather than the "Three--in-One," which used an alternative end cap whereby all three screwdrivers were firmly held by the end cap.
This is one of 84,750 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=50176&pn=D54,162 Hammer Patentee: Erich Edelmann - Chicago IL Granted:1919-11-11
Manufactured by E. EDELMANN & Co. - Chicago IL

Ball-pein hammer with a knurled metal handle; the design seems to show parting lines, so the design may reflect a hammer with nested screwdrivers in the handle. Edelmann received British patent GB-142,008 and Canadian patent CA-216,934 for a hammer with nested screwdrivers stored within its hollow handle. Appears as the HAN-D hammer in a 1920 Edelmann ad. The internal screwdriver arrangement resembles Edelmann's 4-in-1 screwdriver which had been in production for most of the prior decade.
This is one of 84,750 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=76225&pn=148 Improvement in Machines for Nicking and Turning the Heads of Wood-Screws Patentee: Thomas W. Harvey - Poughkeepsie, Dutchess County NY Granted:1837-03-25

Claim: The general combination of the different parts, by the union and arrangement of which in one machine the nicking and turning of the heads are effected simultaneously, which operations have been heretofore performed separately and in distinct machines.
This is one of 84,750 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=27635&pn=2,447,094 Helical Spring Actuated Sliding Side Jaw Wrench Patentee: Royal H. Schlote - Milwaukee WI Granted:1948-08-17
Manufactured by Trebor Machinery Company - Milwaukee WI
Assigned to G. F. Schlote & Company, Inc. - Milwaukee WI

The side slide drives a helical slot in a shaft which transfers power through bevel gears to a worm that adjusts the movable jaw. The specifications cite patent nos. 703,898, 1,354,782, 1,391,180 and 1,739,182 as references.
This is one of 84,750 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=25184&pn=1,143,350 Pipe Wrench Patentee: Laurance D. Benedict - Chicago IL Granted:1915-06-15
Manufactured by Benedict Wrench Co. - Chicago IL

The handle can easily be extended for extra leverage. The BENEDICT EXTENSION HANDLE PATENT APPLIED FOR pipe wrench has a solid extension handle rather than the hollow tubular piece shown in the patent drawing; the remainder of the wrench matches the drawing. The actual patented feature is the spring and related structure around the movable jaw. This patent was cited as prior art in patent no. 2,555,395.
This is one of 84,750 patents currently in the database at datamp.org

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