4 Matching Results

Search Results

Jail Cells.

Description: Patent for new and improved jail cells. This design calls for cell walls constructed of vertical sections secured by through-bolts, tubular bars for the concealment of the through-bolts, wooden corner-posts and sill and head timbers, and outer and main walls lined with sheet-iron (with narrow windows lined with chilled cast-iron) (paras. 15-19).
Date: January 29, 1878
Creator: Thomas, John S.
Partner: UNT Libraries Government Documents Department

Hanger For Draw Heads

Description: Patent for a hanger for draw heads. This invention is designed to support draw-heads in use with street-railways cars. Illustration included.
Date: January 29, 1907
Creator: Savage, Harley G.
Partner: UNT Libraries Government Documents Department

Float Valve

Description: Patent for a float value. This invention is designed to automatically close. Illustration included.
Date: January 29, 1907
Creator: Axtell, Fred W.
Partner: UNT Libraries Government Documents Department

Activated-Sludge Treatment.

Description: Patent for a method that dehydrates sewage for easier removal.
Date: January 29, 1918
Creator: Moor, William C.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen