UNT Libraries Government Documents Department - 5 Matching Results

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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

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

Vehicle Top.

Description: Patent for a new and improved vehicle-top. This design "is to simplify, improve, and cheapen the construction of vehicle-tops . . . and enable the sliding curtain to be more readily and securely fastened to the standards and bows of the carriage-top" (lines 12-18). To this end, it consists in "[t]he combination of the supporting-bows provided with longitudinal grooves, and the curtain-carrying frame comprising flat flexible strips arranged in the said grooves and provided at intervals with inwa… more
Date: September 30, 1890
Creator: McCurdy, Thomas B.
Item Type: Refine your search to only Patent

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
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