https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=85976&pn=2,704,472 TORQUE APPLYING TOOL WITH PREDETERMINED TORQUE RELEASE MEANS Patentee: Ralph E. Booth - Mansfield MA Granted:1955-03-22
Assigned to APCO-Mossberg Co. - Attleboro MA

Claim 1: "A torque tool comprising a body having a work engaging member pivotally mounted thereon at one end thereof, a handle secured to said body at the other end thereof for movement therewith, a spring bar rigidly connected to said member and extending therefrom axially of said body and having limited lateral movement with respect thereto, resilient means for holding said bar against said lateral movement including a slidable plunger at the end of said bar in axial alignment therewith, a ball positioned between said bar and said plunger, and a compression spring acting between said handle and said plunger urging said ball into engagement with said bar, and means for limiting the pressure of said spring on said plunger prior to the yielding of said spring under stress." Prior art cited as references include patents 2,365,486, 2,442,359 and 2,686,446. Cited in 2,887,919, which improves the "break" structure.
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]]> https://www.datamp.org/patents/displayPatent.php?id=85975&pn=2,887,919 Predetermined torque release hand tool Patentee: Sulo A Aijala - Attleboro MA Granted:1959-05-26
Assigned to APCO-Mossberg Co. - Attleboro MA

Refinement of the "click" structure in torque wrenches of the type in R. E. Booth patent 2,704,472. Previous patents 2,704,472, 2,732,747, 2,743,638, 2,789,454, 2,791,141, 2,792,733 and 2,803,979 are cited as references.
This is one of 85,266 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85972&pn=923,257 Twist Drill Patentee: Oscar Fredrickson - Buchanan MI Granted:1909-06-01
Manufactured by Celfor Tool Company - Chicago IL
Assigned to Celfor Tool Company - Chicago IL


This is one of 85,266 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=42297&pn=1,593,588 Wrench Patentee: Frank Moore - Pittsburgh PA Granted:1926-07-27
Manufactured by Pittsburgh Malleable Iron Co. - Pittsburgh PA
Assigned to Pittsburgh Malleable Iron Co. - Pittsburgh PA

Roller jaw pipe wrench which on first glimpse appears identical to the CRAFT wrench based on patent no. 870,781. But there are subtle differences in the frame, connection of the movable jaw frame and compression spring, and details of the fixed jaw. Known examples of the Pittsburgh Malleable Iron Co. roller jaw pipe wrench have the CRAFT trade mark along with the 1907 patent date, and the full side pieces supporting the roller as shown in this patent. One example is marked with the 1907 patent date along with April 14, 1925.
This is one of 85,266 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=19840&pn=603,909 Saw-File Patentee: Peter Lord - Worcester MA Granted:1898-05-10
Manufactured by Lord, Witter & Park - Worchester MA

Made to sharpen multiple saw teeth at the same time, each triangular file is set at the proper angle and pitch if the file is used perpendicular to the saw. The sign sharpens every other tooth at the same time, when finished with one side you just flip the saw and file the remaining teeth. The sample is marked Lord, Witter & Park , Manufactures. Worchester, Mass. on one end, Lord "PAT", Saw File, May 10, 98, Pat's Pending on the other. Also the #8, for the number of teeth per inch its designed to sharpen. See also Patent818633
This is one of 85,266 patents currently in the database at datamp.org

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