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  Partner: UNT Libraries Government Documents Department
 Resource Type: Patent
Acetylene Gas Generator.

Acetylene Gas Generator.

Date: October 14, 1902
Creator: Reynolds, Pearl P. & Reynolds, Jerry J.
Description: Patent for a acetylene gas generator which combines "both a generator and a gasometer the parts of which are so arranged as to render the machine efficient and entirely automatic in action, as well as inexpensive of production." (lines 16-20) including illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Acetylene-Gas Generator.

Acetylene-Gas Generator.

Date: July 29, 1902
Creator: Ray, Samuel W.
Description: Patent for an acetylene gas generator, which is chiefly operated by the fall of a gas-bell.
Contributing Partner: UNT Libraries Government Documents Department
Acetylene-Gas Generator

Acetylene-Gas Generator

Date: 19
Creator: Loyer, William Joseph
Description: Patent for an improved acetylene-gas generator with a carbid receptacle on top of of the gasometer an an improved automated valve mechanism to assist with gas maintenance.
Contributing Partner: UNT Libraries Government Documents Department
Acetylene-Gas Lamp.

Acetylene-Gas Lamp.

Date: February 20, 1900
Creator: Josserand, Peter
Description: Patent for certain new and useful improvements in acetylene gas lamps, including instructions and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Acetylene-Gas Lamp.

Acetylene-Gas Lamp.

Date: October 10, 1899
Creator: Josserand, Peter
Description: Patent for a new and improved acetylene gas lamp, including instructions and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Acetylene Gas Machine

Acetylene Gas Machine

Date: December 14, 1897
Creator: Bryant, Henry
Description: Patent for a new and useful improvement in gas-machines.
Contributing Partner: UNT Libraries Government Documents Department
Adding-Machine.

Adding-Machine.

Date: August 27, 1895
Creator: McElyea, James L.
Description: Patent for an adding-machine meant to "add fixed amounts of money received or to calculate the number of days a laborer has worked or the number of fractions of days" (lines 14-17). Mounted keys have mechanisms that rotate a ratchet wheel or disk. "Secured to the shaft upon which this ratchet wheel or disk is mounted is a rate-indicator, consisting of a disk divided off into radial sections, and also divided by lines running parallel to the circumference of said disk, dividing the same up into sections, which indicate money advanced on pay-roll, addition column, total amount at a fixed rate, and the number of days worked by any workman" (lines 25-34).
Contributing Partner: UNT Libraries Government Documents Department
Adding-Machine

Adding-Machine

Date: June 25, 1889
Creator: Stinson, James C.
Description: Patent for "an adding-machine which, while being constructed of but comparatively few parts, will be so adjusted as arranged as to allow an operator to make rapid and correct calculations; furthermore, to produce an adding-machine in which the operator will be enabled to detect immediately any mistake which he may have made, and, finally, to produce a simple, efficient, and effective adding-machine" (lines 13-22).
Contributing Partner: UNT Libraries Government Documents Department
Adding-Machine.

Adding-Machine.

Date: February 12, 1884
Creator: Barmore, Albert King
Description: Patent for a new and improvement in adding-machines in which a mechanical wheel has teeth. " The object of the invention is to provide the means for adding columns of figures by machinery"(lines 13-15), with instruction and illustration
Contributing Partner: UNT Libraries Government Documents Department
Adding-Machine.

Adding-Machine.

Date: March 21, 1893
Creator: Brooks, Augustus J.
Description: Patent for an inexpensive, simple, easily operated, and improved registering machine that is meant to add numbers without mistakes. It uses revoluble number wheels and a spring-returned shaft among other materials.
Contributing Partner: UNT Libraries Government Documents Department
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