UNT Libraries Government Documents Department - 9 Matching Results

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Apparatus for Manufacturing Carbureted Gas: Patent for an apparatus that manufactures gas for illuminating and heat generating purposes, including instructions.
Automatic Piano: Patent for an automatic piano that can play longer and is more compact than previous models.
Combined Board-Set and Nail-Driver: Patent for a combined board set and nail driver that allows nails to be driven into wall boards without scarring the wood.
Cotton-Chopper.: Patent for a cotton chopper that attaches to a cultivator.
Fountain-Brush: Patent for a brush for cleaning fountains. Illustrations included.
Grub-Plow.: Patent for a grub plow with a better cutter, which can be adjusted to different depths of soil.
Mechanism for Gradually Changing Rotative Velocity.: Patent for a mechanism for gradually changing rotative velocity on automatic pianos.
Water-Carrier.: Patent for a water carrier that is made up of a conveyor for a bucket to and from a well.
Water-Tank.: Patent for a railroad water tank, which automatically opens the discharge valve when the spout is opened.