http://www.datamp.org/ Recently added patents en-us http://www.datamp.org/patents/displayPatent.php?id=17904&pn=198,777 File Handle Patentee: William T. Nicholson - Providence RI Granted:1878-01-01
Manufactured by Nicholson File Co. - Providence RI
Assigned to Nicholson File Co. - Providence RI

Handle with tapered socket, three or four radial slots, and "elastic compress" to hold file tangs, or double-taper square or triangular files -- the corners of the files or tangs entering the slots. One known example (found in spring 2018) has lost the "elastic compress" and shows three radial slots.
This is one of 58,624 patents currently in the database at datamp.org

]]> http://www.datamp.org/patents/displayPatent.php?id=99&pn=435,348 Gage Patentee: John L. Murphy - Springfield MA Granted:1890-08-26

An interesting butt gage, with several unusual features. This gage uses a telescoping arm with one point on the tube and one in the inner arm, and a large metal head with a slot to fit the inner point. Interestingly, this tool does not automatically account for the hinge gain (unlike most other butt gages).
This is one of 58,624 patents currently in the database at datamp.org

]]> http://www.datamp.org/patents/displayPatent.php?id=59001&pn=1,268,783 Gearing for tractors Patentees: Louis Mayer - Mankato MN , Edwin A. Bye - Mankato MN Granted:1918-06-04
Manufactured by Mayer Bros. Co. - Mankato MN
Assigned to Mayer Bros. Co. - Mankato MN


This is one of 58,624 patents currently in the database at datamp.org

]]> http://www.datamp.org/patents/displayPatent.php?id=59003&pn=1,288,952 Tractor Patentees: Louis Mayer - Mankato MN , Lorenz L. Mayer - Mankato MN , Edwin A. Bye - Mankato MN Granted:1918-12-24
Manufactured by Mayer Bros. Co. - Mankato MN
Assigned to Mayer Bros. Co. - Mankato MN


This is one of 58,624 patents currently in the database at datamp.org

]]> http://www.datamp.org/patents/displayPatent.php?id=59002&pn=1,288,105 Tractor Patentees: Louis Mayer - Mankato MN , Lorenz L. Mayer - Mankato MN , Edwin A. Bye - Mankato MN Granted:1918-12-17
Manufactured by Mayer Bros. Co. - Mankato MN
Assigned to Mayer Bros. Co. - Mankato MN


This is one of 58,624 patents currently in the database at datamp.org

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