UNT Libraries Government Documents Department - 93 Matching Results

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Improved Washing-Machine.

Description: Patent for a machine for washing and wringing clothes, which can be used with a furnace for heating the water but has legs for support when being used separately from a furnace. Includes instructions and illustrations.
Date: September 13, 1870
Creator: Moore, Alfred L. D.
Item Type: Refine your search to only Patent

Improvement in Thrashing-Machines.

Description: Patent for "new and useful improvements on machinery for thrashing various kinds of grain, whereby the work is performed in a very rapid and perfect manner, without impairing the straw." (lines 28-32) Instructions and illustrations are included.
Date: September 13, 1870
Creator: Fuos, Matthias
Item Type: Refine your search to only Patent

Improvement in Washing-Machines.

Description: Patent for the improvement of the structure of washing machines. The illustration and description show that an improved washing machine, formed by the combination of the open or ribbed roller F F and handles G g1 g2 with the box A B and perforated false bottom E.
Date: September 27, 1870
Creator: Harper, Elijah S.
Item Type: Refine your search to only Patent

Improvement in Combination Locks.

Description: Patent for improved combination locks, with a bolt that is locked or unlocked by the combination of spindles and pivoted buttons. The invention combines the spindles in to an "annular ring having letters or numbers and a series of different shaped pegs or combinations of letters or figures or both jointly" (pg 1).
Date: September 12, 1871
Creator: Hall, William N.
Item Type: Refine your search to only Patent

Improvement in Blow Offs For Boilers

Description: Patent for Improvement in Blow Offs For Boilers provides details of the construction of the blow off device with two labeled Figures and descriptive text. Also includes the significance of the blow off device and how it will improve locomotive travel by conserving water.
Date: September 10, 1872
Creator: Husted, Esbon Forrest
Item Type: Refine your search to only Patent

Improvment in Cultivators.

Description: Patent for improvement in digging or cultivation machines primarily adapted to the cultivation of cotton. Includes parts that can be added or removed from the machine, thereby reducing the number of machines needed for farm work. Includes illustrations and instructions.
Date: September 10, 1872
Creator: Forsgard, Gustave A.
Item Type: Refine your search to only Patent
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