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7
Attachment for Adding Machine
Patent for new and useful improvements in attachments for adding machines which both add and list the sums accumulated by the adding machine.
Date:
January 7, 1919
Creator:
Walker, Jack L.
System:
The Portal to Texas History
Improvements in Rail-Lubricators
Patent for "a lubricating apparatus for use on street and other cars for lubricating the track when the car rounds a curve" (lines 8-11) including list of parts and illustrations.
Date:
April 27, 1910
Creator:
Freeman, Frank S. & Doke, Fred L.
System:
The Portal to Texas History
Adding-Machine
Patent for an adding machine that is simple and can be manufactured at a small cost.
Date:
September 7, 1915
Creator:
McCaleb, Walter F.
System:
The Portal to Texas History
Boring-Machine.
Patent for Boring-Machine. Particularly a boring-machine for boring brush blanks, and can bore all of the necessary openings, both straight and at an angle, at a single operation.
Date:
May 7, 1918
Creator:
Miller, Emma T.
System:
The Portal to Texas History
Marine-Engine Governor.
Patent for marine engine governor "designed to maintain uniformity of speed of the engine when the resistance to the propeller or propellers is varied" (lines 11-13), including illustrations and description of construction.
Date:
August 18, 1903
Creator:
Corneliussen, Ivar
System:
The Portal to Texas History
Combined Adding and Listing Machine.
Patent for new improvements on combined adding and listing machines simplifying and economizing construction and facilitating, "rapidity of operation" (lines14-15). Improvements include: "causing the keys to act directly as stops for the adding wheel section; to provide novel accumulator mechanism...[with] a novel actuator; to provide a novel construction or sector-control bar; to provide a novel key-bar for operating...; to provide novel means for restoring the accumulator to normal; to provide stop mechanism to permit the carryovers of the accumulator...;to provide novel means for restoring the sectors to normal; to provide improved means for holding the accumulator in operative or inoperative position...; to provide novel means for connecting the accumulator sectors with the type sectors; 5o provide novel means for connecting the accumulator sectors with the type sectors; to provide novel means for actuating the hammer and paper feed mechanism; to provide improved general-error key mechanism; to provide an improved construction and operation of key-bar and sector-control bar; to permit of the operation of elimination" (lines 15-46).
Date:
April 20, 1920
Creator:
McCaleb, Walter F.
System:
The Portal to Texas History
Saw-Filing Machine.
Patent for a saw filing machine that keeps the teeth of saws properly aligned, while they are being sharpened.
Date:
February 27, 1912
Creator:
Haltom, Samuel
System:
The Portal to Texas History