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 Collection: Texas Patents
Calculating-Machine.

Calculating-Machine.

Date: April 17, 1894
Creator: Stallard, Sherman R.
Description: Patent for an improvement to mechanical calculators by providing the "means for facilitating the addition of successive numbers of the same or different denominations, and also for subtracting and multiplying the same by substantially the means employed in adding" (lines 10-14). It includes a written explanation and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Calculator.

Calculator.

Date: October 13, 1896
Creator: Copeland, Wesley Albert & Roberts, Cyrus
Description: Patent for a calculator "in which a bar having a series of numbers thereon slides in a frame or base also provided with a series of numbers" (lines 10-12). It is meant for quickly adding numbers.
Contributing Partner: UNT Libraries Government Documents Department
Calendar.

Calendar.

Date: April 6, 1891
Creator: Sittig, Alexander Franklin
Description: Patent for improvements to the monthly reference calendar, which includes note space and a monthly index. Includes instructions and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Calendar.

Calendar.

Date: September 22, 1896
Creator: Dickason, Frank B.
Description: Patent for "a perpetual calendar embodying such a construction that the movement of a finger device will turn wheels, so as to successively display the names of the days of the week, the numbers of the days of the months, and the names of the months, the mechanism being such that the name of a month will be displayed until the numbers of all its days have been displayed, when the name of the succeeding month will be displayed, and so on." (Lines 13-22) Includes instructions and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Calf Weaner.

Calf Weaner.

Date: May 29, 1883
Creator: Geissler, William F.
Description: Patent for a new and improved device for weaning calves. This design is "to be attached to the central cartilage of the calf's nose . . . with sharp points that come against the cow's bag when the calf attempts to suck; and the invention consists in attaching the parts . . . together like a pivot, forming a part of one of the points and adapting them to be held closed by means of a small screw, whereby the device is rendered very cheap, yet effective and reliable" (lines 15-25).
Contributing Partner: UNT Libraries Government Documents Department
Calipers.

Calipers.

Date: June 29, 1897
Creator: Clarke, George R.
Description: Patent for calipers that can be adjusted micrometrically to within one five-thousandth of an inch. Includes instructions and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Canceling Stamp.

Canceling Stamp.

Date: April 19, 1881
Creator: Grothaus, Frederick E.
Description: Patent for a new and improved stamp canceler. This design utilizes a washer, flanges, and vertical slots "for the purpose of adjusting the roughened face of the head . . . so that the correct operation of the face is insured" (65-68). This represents an improvement over previous stamp cancelers.
Contributing Partner: UNT Libraries Government Documents Department
CANDLESTICK.

CANDLESTICK.

Date: April 13, 1880
Creator: Selkirk, William
Description: Patent for candlestick handle/dish with an extension that can be used traditionally for holding and carrying a candle as well as hanging on a nail in a wall with illustrations and instructions.
Contributing Partner: UNT Libraries Government Documents Department
CANNING SHRIMPS AND OTHER FISH.

CANNING SHRIMPS AND OTHER FISH.

Date: April 6, 1880
Creator: Pecor, Emmett C. & Bartlett, F. W.
Description: Patent for a method for "canning shrimps and/other like shellfish and has for its object the better preservation of the fish and greater expedition, and cheapness in canning" (lines 7-10)with illustrations and instructions.
Contributing Partner: UNT Libraries Government Documents Department
Canopy for Vehicles, & c.

Canopy for Vehicles, & c.

Date: December 10, 1896
Creator: Buchanan, Hugh A. & Tisdal, Jefferson M.
Description: Patent to "improve the construction of canopies and to provide a simple, inexpensive, and efficient one adapted to be readily mounted on all kinds of vehicles, plows, machines, &c., where shade or protection from weather is desirable" (lines 11-15) with instructions and illustration.
Contributing Partner: UNT Libraries Government Documents Department