Ohio Tools Jointer Plane with Adjustable Frog

Shop Timetestedtool's tool Store ......... And The Etsy Shop

Ohio Tools #7 Bench Plane

This plane is stamped with the Edward Marks’ 8-20-07 Patent frog patent date. It has the frog seat from the patent, but an adjustment screw has been added to it. The adjustment screw was not in the patent.

Click here for a Ohio Tools Marks Patent #04 —>




Edward Marks' 8-20-07 Patent
Edward Marks’ 8-20-07 Patent

This Ohio Tool Company O7 Jointer Plane is fairly rare because the frog design. The Marks Patent design uses a tongue on the frog and groove on the frog seat on the plane bottom to maintain absolute alignment of the frog.

I’ve read other that have stated that  a screw adjustment to make fine adjustment of the throat opening was included, but there is no indication of an adjustment screw in Edward Marks’ patent, It does show up in a later patent by Thomas A. Manley, US Patent: 1,021,369, which allows for the throat adjustment without moving the blade, similar to the flat top bedrocks and Sargent Shaw patent.

Despite being patented in 1907 they are not listed in the 1910 Ohio Tool Company’s No 23 Illustrated Price List. There is no mention of the patent in Roger Smith’s excellent PTAMPIA Vol 1 or Vol 2 although the patent is included in the patent list in the appendix of Volume 2.

________________ As an Amazon associate, we earn income from qualifying purchases when you click on a link. Your link clicks help us fund our website. ________________