UNT Libraries Government Documents Department - 28 Matching Results

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Oil-Converting Apparatus.

Description: Patent for an apparatus that can be built at moderate cost, which will enable a high rate of commercially efficient work to reduce "the specific gravity of various grades of hyrdo-carbon oils, especially those of a semi-refined character" (lines 22 - 24).
Date: October 28, 1919
Creator: Adams, Joseph H.
Item Type: Refine your search to only Patent

Jack.

Description: Patent for a jack for lifting heavy loads on railroads, which has an automatic steady movement of the load up and down without adjusting the jack settings.
Date: August 6, 1907
Creator: Blake, David Alexander & Blake, Charles William
Item Type: Refine your search to only Patent

Envelope or Bag Machine

Description: Patent for a machine "for making envelopes, paper bags, and the like wherein the blank which is to form the envelope or bag is automatically fed into the machine at its receiving end by a suitable feeder and is folded and gummed on its way through the machine, being finally delivered in a marketable condition at the delivery end of the machine" (lines 10-17).
Date: June 24, 1890
Creator: Clarke, George R.
Item Type: Refine your search to only Patent

Clip for Type-Writers.

Description: Patent for a clip for type-writers for Remington or similar type-writers that holds post-cards, envelopes, and similar short items in place. The invention prevents "the blurring or bad impression which is apt to be made, more particularly in machines having type bars with two types each, when the paper is not held firmly to the roller or platen" (lines 12-16).
Date: February 19, 1895
Creator: Gibson, Allen J.
Item Type: Refine your search to only Patent

Seeding-Machine

Description: Patent for improvements to the hoe of the seeding machine "and attendant parts, and particularly to the means for guiding and adjusting the hoe and for guiding and adjusting the following-wheel" (lines 17-19).
Date: November 8, 1892
Creator: Kirkpatrick, George W. & Ralston, James B.
Item Type: Refine your search to only Patent

Trolly Wheel and Harp.

Description: Patent for trolley wheels, where "the transmission of the current through the wheel to the harp is maintained at the maximum and the necessary wear of the relatively movable parts reduced to a minimum" (lines 11-15).
Date: May 7, 1912
Creator: Neighbour, William W.
Item Type: Refine your search to only Patent

Composition Fuel

Description: Patent for "a new and useful improvement in composition fuel, the object being to produce fuel in compact form which will burn quickly, rapidly generating an intense heat, and leaving but a small quantity of a residue or ash" (lines 10-15).
Date: January 15, 1901
Creator: Patterson, Warren A.
Item Type: Refine your search to only Patent

Electric motor.

Description: Patent for improved electric motor used in motor vehicles "which may be associated directly with the driving-wheel of a motor-vehicle" (lines 40-41), bypassing the need for other power-transmitting mechanisms. Includes instructions and illustrations.
Date: July 20, 1897
Creator: Perret, Frank A.
Item Type: Refine your search to only Patent

Bookbinding

Description: This is a letter patent for the bookbinding invention as a means for holding books, pamphlets, catalogs, and other similar paper materials together. The purpose of this invention is to make it possible to place additional material inside the same covers, and with the original contents of a book without breaking or tearing the binding.
Date: June 22, 1911
Creator: Robinson, Edward K.
Item Type: Refine your search to only Patent
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