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Tension Device for Band-Saw Mills. (open access)

Tension Device for Band-Saw Mills.

Patent for "a new and useful improvement in tension devices for band-saw mills; and it consists, generally stated, in mounting the upper wheel in standards which are vertically movable in suitable guideways, said standards being secured to the plunger or cylinder of a direct-acting medium, such as compressed air." (Lines 24-31) Includes instructions and illustrations.
Date: March 23, 1897
Creator: Coleman, Thomas A. & Coleman, Nathan
System: The Portal to Texas History
Chopping-Ax. (open access)

Chopping-Ax.

Patent for an ax that is "provided with a poll made in two sections adapted to be clamped or secured to the handle and receive a removable bit or hardened section presenting the cutting edge" (lines 16-20).
Date: January 5, 1897
Creator: Crabtree, James G.
System: The Portal to Texas History