Bottle-Holder. (open access)

Bottle-Holder.

Patent for an ink bottle holder that allows for sturdy tilting and prevents ink from spilling.
Date: April 27, 1920
Creator: Smith, Edwin Ruthven
System: The Portal to Texas History
Method of Stretching and Securing Wire. (open access)

Method of Stretching and Securing Wire.

Patent for a "new method of stretching and securing wire" (line 6).
Date: April 27, 1920
Creator: Coulter, Thomas H.
System: The Portal to Texas History
Torch or Burner (open access)

Torch or Burner

Patent for a torch or burner for use in burning brush or foliage, which uses a pressure-controlled liquid fuel tank that maintains a steady flow of fuel at the correct pressure.
Date: April 27, 1920
Creator: Hardt, Benjiman F. & Taylor, Samuel T.
System: The Portal to Texas History
Mail Carrier or Container. (open access)

Mail Carrier or Container.

Patent for a mail carrier designed with a ratchet and clamp to hold mail securely while also allowing for quick extraction of the mail.
Date: April 27, 1920
Creator: Blocker, Leck H.
System: The Portal to Texas History
Rotary Engine. (open access)

Rotary Engine.

Patent for an improved rotary engine which overheats less, reduces the space between the piston and cylinder, and is easy to construct and operate.
Date: April 27, 1920
Creator: Jefferies, Charlie Q.
System: The Portal to Texas History
Rotary Cutting Device for Razors. (open access)

Rotary Cutting Device for Razors.

Patent for a shaving razor designed with a "cylindrical outer surface adapted to rotate in contact with the skin" (line 111-112) which allows for safer and more efficient shaving, includes illustrations.
Date: April 27, 1920
Creator: Jones, Sidney, P.
System: The Portal to Texas History
Pipe-Wrench. (open access)

Pipe-Wrench.

Patent for a pipe wrench that can be "operated in either direction" (line 18) to screw and unscrew a pipe with an easy application and secure grip.
Date: April 27, 1920
Creator: Nixon, Jeddy D.
System: The Portal to Texas History
Demountable Rim. (open access)

Demountable Rim.

Patent for improved demountable rims for automobiles that are easy to mount and detach as well as cheaper and easier to manufacture.
Date: April 27, 1920
Creator: McPherson, Arthur Edison
System: The Portal to Texas History