UNT Libraries Government Documents Department - 389 Matching Results

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Line-Lock Attachment for Type-Writing Machines.

Description: Patent for improvements in line-lock attachments for type-writing machines in which “it prevent the printing of one letter over another by effecting a locking of the key-levers when the carriage of the machine reaches the end of the line.” (Lines 26-29) Illustration is included.
Date: July 5, 1904
Creator: Parker, William A.

Rail Bond.

Description: Patent for improved track circuit rail joints designed to withstand heavy usage and convey electrical currents between rails, including illustrations.
Date: August 30, 1898
Creator: Talley, William H.


Description: Patent for a nebulizer, which has a spraying mechanism for delivering medicinal sprays through a nozzle to the nose, throat, or lungs.
Date: July 14, 1908
Creator: McGregor, Ringling R.

Hydraulic Milk Cooler

Description: Patent for a hydraulic milk cooler. This invention is shrouded in coolant agent absorbing material that is hydraulically applied to keep dairy products cool. Illustrations included.
Date: December 8, 1903
Creator: Womble, Zachariah C.


Description: Patent for a motion transmitter for wave motors, "the primary object of the invention being to produce motion-transmitting mechanism which will effect the conversion or translation of reciprocity motion into continuous rotary motion in the same direction."
Date: November 27, 1900
Creator: Walker, James Constant