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Automatic Fire Extinguisher.

Description: Patent for a new and improved fire extinguisher. This design is "to provide for automatically putting out a fire in any building in which [the] apparatus may be located, upon the temperature in said building or room reaching any predetermined degree. This result is accomplished by the action of an expansible fluid—such as mercury—in a contained vessel, which actuates certain . . . mechanism, causing the structure to be flooded with water or with a fire-extinguishing gas or fluid" (lines 22-32).
Date: December 30, 1890
Creator: Fuller, Wily Scott
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Well Drill.

Description: Patent for a new and improved well-drill. This design consists "[i]n a drill, the cylinder closed at its upper end by a head with a stuffing-box and a tapering opening and provided at its lower end with suitable cutters, in combination with an operating-rod passing through the upper head and a weight, said operating-rod being provided with spring-arms adapted to engage and raise said weight within the cylinder and at the top thereof automatically to release it" (lines 27-35).
Date: December 30, 1890
Creator: Welke, William Robert
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Trace Carrier.

Description: Patent for a new and improved trace-carrier. This design "consist[s] of a rectangular frame, a central integral transverse bar provided at its upper and lower edges with pairs of spaced-apart superficial ribs having central aligning bores, a spring-pressed bolt mounted in one of said ribs, adapted at its inner end to take into the opposite rib and provided at its outer end with a knob or head, a pintle mounted in the lower pair of ribs, a tongue pivoted upon the pintle, said tongue having its u… more
Date: December 30, 1890
Creator: Harbour, Thomas J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Tongs.

Description: Patent for new and improved tongs. This design "is especially adapted for the recovery of tools, broken sections, stones, or débris from artesian-well borings" (lines 54-57). It consists "of a solid or tubular shank provided with spring-metal tines, a ring to slide thereon, and a hollow weight sliding on the tube adapted to drive the ring down upon the tines" (lines 12-16).
Date: December 30, 1890
Creator: Welke, William Robert
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Snap-Hook

Description: Patent for a snap hook in order to "provide a hook of simple construction that shall be securely locked when in use" (p. 2)
Date: December 30, 1890
Creator: Adams, Don B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Reamer.

Description: Patent for a new and improved reamer. This design "relates to reamers for use in boring artesian wells and other similar purposes; and it consists, essentially, of a hollow cylindrical body adapted to be attached to a suitable driving-head and provided with peripheral expansion-cutters operated by an internal plunger" (lines 11-17).
Date: December 30, 1890
Creator: Welke, William Robert
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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