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  Partner: UNT Libraries Government Documents Department
 Decade: 1890-1899
 Collection: Texas Patents
Acetylene-Gas Generator.

Acetylene-Gas Generator.

Date: May 30, 1899
Creator: Camp, Charles M.
Description: Patent for a new and useful acetylene gas generator, including instructions and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Acetylene-Gas Generator.

Acetylene-Gas Generator.

Date: July 18, 1899
Creator: Eldridge, Hilliary & Blum, Sylvain
Description: Patent for a new and useful acetylene gas generator, including instructions and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Acetylene-Gas Generator.

Acetylene-Gas Generator.

Date: December 5, 1899
Creator: Schaefer, Henry P.
Description: Patent for a new and improved gas generator, 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: May 12, 1891
Creator: Wright, Joseph W.
Description: Patent for am adding machine by using two disks, one a units-disk with pins in multiples of ten, one a tens-disk, is an annular disk with pin surrounding the units disk, an outwardly spring-pressed holder having a beveled outer end frictionally engaging the pins of the tens-disk and a carrier having oppositely-beveled ends engaged a supplemental pin and one pin on the tens-disks, teeth in the adjacent faces of the holder and carrier, and an idle-gear between them to enable the adding operation. (Lines 50-62) Illustration is included.
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: 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
Adjustable Cultivator-Tooth Seat.

Adjustable Cultivator-Tooth Seat.

Date: June 7, 1898
Creator: Shofield, James Drummond
Description: Patent for certain new and useful improvements in adjustable cultivator tooth seats, including instructions and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Adjustable Fire Guard and Screen.

Adjustable Fire Guard and Screen.

Date: May 3, 1892
Creator: Gibson, Nathaniel B.
Description: Patent for a new and improved fireplace screen. This design "is to provide a simple and efficient device which may be suspended in front of open fireplaces or grates for the purpose of preventing the frequent and sometimes fatal accidents which are directly due to the absence of reliable safe-guards. The invention consists of a series of shields or plates of suitable size and material, which are so connected that when not in use they may be easily drawn upward in succession side by side and compactly placed in an appropriate receptacle attached to the front of a mantel or to a wall above a fireplace" (lines 16-29).
Contributing Partner: UNT Libraries Government Documents Department