Post-Driver. (open access)

Post-Driver.

Patent for a machine that drives posts and "can be placed on the running gear of a vehicle in such a manner that it can be readily adjusted to operate on posts at either side of the longitudinal axis of the vehicle" (lines 14-18). It can be easily adjusted and is simply constructed.
Date: April 18, 1893
Creator: Harris, Stephen G.
Object Type: Patent
System: The Portal to Texas History
Electric Meter. (open access)

Electric Meter.

Patent for a simple and inexpensive electric meter that measures and records "the time during which an electric translating device, such as a motor or light, is connected with the source of supply, such as a dynamo-electric machine, located at a central station" (lines 11-15). Anyone can understand how it works, and it is more accurate than other meters.
Date: January 7, 1896
Creator: McGrath, William H. & Oram, John M.
Object Type: Patent
System: The Portal to Texas History
[Publisher's Circular with Written Notes] (open access)

[Publisher's Circular with Written Notes]

Circular produced by Garretson, Cox & Co., Publishers regarding Alden's Manifold Cyclopedia. The publishers announce that after July 1, 1893, subscribers of this publication should send their orders to them rather than Mr. Alden. An unknown person has written a note on the back discussing his appreciation of the Manifold Cyclopedia.
Date: 1893~
Creator: Garretson, Cox & Co., Publishers
Object Type: Text
System: The UNT Digital Library