https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=85992&pn=331,262 Machine for Swaging Saw Teeth Patentee: James E. Traverse - Cincinnati, Hamilton County OH Granted:1885-11-24

Abstract: The object of my invention is to produce a machine-tool for upsetting the saw- teeth, which will operate rapidly and more regularly than the work can be done by hand-hammering. The machine consists, essentially, of a frame, a vertical reciprocating shaft, on the lower end of which the upset is formed, and clamping-dies held within the frame and adapted to clamp and hold the saw and support the tooth during the operation of the upset-tool. The clamping-dies may be adjusted by hand, so as to clamp the saw and support the tooth each time a tooth is operated upon, or the clamping-dies may be operated by means of the automatic attachment set forth, so as to automatically clamp the jaws each time the upset operates. The power required is given the upset by means of an eccentric cam at the end of a lever. Claim: In a saw-tooth-upsetting machine, the combination of a sawtooth upset having the operating-surfaces inclined to correspond with the front and back surfaces of the saw-tooth, an extension or holder sliding in guide-bearings in the frame and guided in a right line therein reciprocally toward the cutting-edge of the saw-tooth, the said guide-bearings, the said frame, and sawtooth dies having parallel and smooth or rough blade-clamping surfaces and inclined diverging surfaces adjacent the sides of the tooth-point, the said frame serving to support or hold all of the parts of the device.
This is one of 85,281 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85991&pn=1,384,209 Spark-plug-adjusting device Patentee: John O'Toole - Los Angeles CA Granted:1921-07-12

The patent is a "concept" where the tongue portion combines gage and file functions while the jaws can manipulate the spark plug electrodes.
This is one of 85,281 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85990&pn=331,167 Machine for Threading Tapering Bushings Patentee: Harrison H. Taylor - Detroit, Wayne County MI Granted:1885-11-24
Assigned to Detroit Machine Screw Works - Detroit, Wayne County MI

Abstract: My invention relates to screw-cutting machinery, and has for its object a novel machine for cutting a continuous thread upon conical tubular articles and it consists, essentially, of suitable mechanism for cutting the threads and for feeding the work to and from the cutter, and for rotating the work in connection therewith. Claim: In a machine for screw-threading tapering bushings, the combination, with a rotating multiple cutter, of a rotating chuck carrying the bushing, said cutter and chuck being set at an angle to each other, so that the tapering bushing at the point of contact with the cutter will be in the same plane therewith.
This is one of 85,281 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=58596&pn=1,488,759 Pliers and Wrench Patentee: Edward M. Loftus - St. Paul MN Granted:1924-04-01

The underlying concept is a latch to hold size adjustment against back pressure to prevent the grip from slipping. Improvement to the design in patent nos. 1,398,904 and 1,418,312 which modifies the shape of the swinging cam, and provides for alternate faces for the cam to better hold when the "wrench" function is selected. Loftus was offering Pliers patent for sale in 1924. Corresponds with a pliers marked PEERLESS - ST. PAUL- PAT'D.
This is one of 85,281 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=58594&pn=1,418,312 Pliers Patentee: Edward M. Loftus - St. Paul MN Granted:1922-06-06

Side cam acts as "adjustment holder" in conjunction with an extension on the side of one jaw. Loftus was offering a pliers patent for sale in 1924. Known examples marked "PEERLESS St. PAUL PAT'D" match Loftus' April 1, 1924 patent no. 1,488,759.
This is one of 85,281 patents currently in the database at datamp.org

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