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The Petrolia Enterprise (Petrolia, Tex.), Vol. 20, No. 6, Ed. 1 Thursday, February 5, 1925 (open access)

The Petrolia Enterprise (Petrolia, Tex.), Vol. 20, No. 6, Ed. 1 Thursday, February 5, 1925

Weekly newspaper from Petrolia, Texas that includes local, state, and national news along with advertising.
Date: February 5, 1925
Creator: Grundy, John
Object Type: Newspaper
System: The Portal to Texas History
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.
Object Type: Patent
System: The Portal to Texas History