Resource Type

Coin Controlled Electrical Weighing Scale. (open access)

Coin Controlled Electrical Weighing Scale.

Patent for a new and improved coin-operated electrical scale. This design "relates to improvements in electrical weighing-scales that may be tripped by electricity; and the main object of [the] invention is to so arrange the electric circuit that it may be closed for tripping the indicator by inserting within the machine a coin or like-shaped metallic piece" (lines 16-22).
Date: November 13, 1888
Creator: Smith, William R.
System: The Portal to Texas History
Combined Cultivator, Plow, &c. (open access)

Combined Cultivator, Plow, &c.

Patent for "a machine having a main frame and a driving-gear with interchangeable planting, cultivating, stalk-cutting, and cotton-chopping mechanism, whereby the machine is adapted to be used for a variet of purposes" (lines 15-20).
Date: April 9, 1889
Creator: McBride, Abram B.
System: The Portal to Texas History
Coin Operated Electrical Weighing Scale. (open access)

Coin Operated Electrical Weighing Scale.

Patent for a new and improved coin-operated electric weighing-scale. This design consists in "the combination of the chute-section adapted to receive a coin or similar metallic piece, and having insulated electrical conductors, a weighing machine having its indicator disconnected from the main portion of the weighing mechanism, a stop on said main portion to limit the movement of the indicator when released, a latch for securing said indicator at the zero-point, and electrical connections between said chute-section and latch" (lines 114-123).
Date: June 21, 1887
Creator: Smith, William R.
System: The Portal to Texas History