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Coin-Controlled Vending-Machine.

Patent for a con-controlled vending-machine that sells stamps and similar products including illustrations. The machine "compels a complete cycle of operation for each coin received and cannot be rendered inoperative through the deposit of a plurality of coins in the chute or while the operation of the machine is in progress." (lines 14-17).

Date: October 9, 1917

Creator: Wolford, William O.

Item Type: Patent

Partner: UNT Libraries Government Documents Department

Coffee-Roaster.

Patent for a coffee roaster, including illustrations. The purpose of the coffee maker "is to provide an improved apparatus by which green coffee may be evenly, quickly, and economically parched or roasted to the desired degree without burning" (lines 8-12).

Date: October 31, 1882

Creator: Dunn, William Washington

Item Type: Patent

Partner: UNT Libraries Government Documents Department

Acetylene Gas Generator

Patent for an acetylene gas generator. This invention is designed to be automatic, use non-freezing fluids, and work on railway trains or ships. Illustrations included.

Date: October 2, 1906

Creator: Woodson, Jacob W.

Item Type: Patent

Partner: UNT Libraries Government Documents Department

Cattle-Guard.

Patent for a cattle guard that prevents cattle from blocking railroad tracks. It consists of sharp edged cross ties that sit on the bottom of a shallow pit, guard rails that cover the cross ties, bolts that hold the rails together, and end planks forming v-shaped serrations.

Date: October 10, 1893

Creator: Lynch, Michael L.

Item Type: Patent

Partner: UNT Libraries Government Documents Department