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Dubbing-Machine. (open access)

Dubbing-Machine.

Patent for improvements to the dubbing-machines with illustrations. Specifically, this improvement is aimed at "dressing ship timber" (line 15) in an effort to make the process easier and more efficient.
Date: June 10, 1919
Creator: Cobb, Dan L. & Moore, William W.
System: The Portal to Texas History
Projectile. (open access)

Projectile.

Patent for projectiles, more particularly to an explosive projectile. "One of the main objects of the invention is to provide a shell of the character stated which may be produced at relatively small cost..."
Date: June 24, 1919
Creator: Wilkins, Willie A.
System: The Portal to Texas History
Emergency Stop-Valve For Stopping Runaway Carriages In Sawmills (open access)

Emergency Stop-Valve For Stopping Runaway Carriages In Sawmills

Patent for an emergency stop valve for stopping runaway carriages in sawmills. This "invention is designed to provide a new and useful improvement in mechanism for stopping a runaway carriage in a sawmill, where the carriage is moved back and forth by a piston in a long cylinder" (lines 11-15). Illustration included.
Date: June 21, 1904
Creator: Edwards, Daniel R.
System: The Portal to Texas History
Shaft-Coupling. (open access)

Shaft-Coupling.

Patent for "an improvement in shaft couplings ... primarily designed for installation on the shafting of steamships and the like" (lines 9-13), including illustrations and instructions.
Date: June 3, 1919
Creator: Nelson, Gustaf Theodore
System: The Portal to Texas History