Indicating Attachment for Tanks (open access)

Indicating Attachment for Tanks

Patent for an indicating attachment for gas tanks on cars.
Date: May 28, 1912
Creator: Turner, Joseph B.
System: The Portal to Texas History
Combined Book and Pencil Holder. (open access)

Combined Book and Pencil Holder.

Patent for a book and pencil holder that mounts a pencil or pen and attaches to a book. The combined book and pencil holder uses a clamp so the pen or pencil attached to the book inside a pocket is maintained in a pocket and does not fall out.
Date: May 13, 1913
Creator: Colbert, Charles W.
System: The Portal to Texas History
Firing-Valve to Control the Feed of Oil in Firing Oil-Burning Locomotives. (open access)

Firing-Valve to Control the Feed of Oil in Firing Oil-Burning Locomotives.

Patent for valve changes that "provide a valve operating means whereby the valve may be very finely adjusted and prevented from being casually turned" (lines 16-18).
Date: May 15, 1917
Creator: Gilman, Benoist P.
System: The Portal to Texas History