Hydrostatic Indicator for Weighing Scales. (open access)

Hydrostatic Indicator for Weighing Scales.

Patent for a new and improved hydrostatic indicator for scales. This design consists in "a reservoir, an outer cylinder, a hollow inner cylinder, an attached stand-pipe, and registering-dial, said inner cylinder being surrounded by and sliding within said outer cylinder, said outer cylinder being provided with an attached inlet-pipe communicating with said reservoir, said pipe being provided with two valves, in combination with a bearing-bar, side rods, and under bar, forming a frame bearing upon the inner cylinder" (lines 55-65).
Date: February 5, 1889
Creator: Lewis, Henry A.
System: The Portal to Texas History
Shackle. (open access)

Shackle.

Patent for a new and improved set of shackles. This design consists in "[a] mitten provided with button-holes in its wrist, in combination with a handcuff provided with a fastening-button . . . [and] a flexible wrist band or cuff and carrying devices whereby a mitten may be attached thereto" (lines 73-79).
Date: June 4, 1889
Creator: James, John & Goodenough, Alvin D.
System: The Portal to Texas History