UNT Libraries Government Documents Department - 8 Matching Results

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Balanced-Valve Testing and Locking Device.

Description: Patent for "a simple testing and locking device for balanced valves of locomotives, the testing device being so placed with relation to the valve that it may be accurately determined whether the valve on one or the other side of the engine is leaking without removing the outer plates form the valve-casing or removing the covers from the steam-chest." (Lines 8-16) Includes instructions and illustrations.
Date: June 15, 1897
Creator: Sadler, James Alexander
Item Type: Refine your search to only Patent

Car-Coupling.

Description: Patent for "car-couplings; and the object is to provide an improved automatically-tripped pin-supporting mechanism, and also to provide an improved device for holding the link in proper position for coupling, whereby the couplers of adjoining cars may be arranged to interlock automatically before coming together, thus avoiding the extreme danger incident to coupling cars." (Lines 12-20) Includes instructions and illustrations.
Date: June 15, 1897
Creator: Robertson, Isaac N.
Item Type: Refine your search to only Patent

Cotton-Seed Conveyer.

Description: Patent for "an efficient and economical cotton-seed-conveyer system for the removal of cotton-seed from gins or linters by the exclusive and unimpeded action of an air-blast through the exhaust-flue of the fan that is ordinarily employed in connection with the usual elevator from conducting cotton into the gin-feeders." (Lines 9-15) Includes instructions and illustrations.
Date: June 15, 1897
Creator: Graber, Henry W.
Item Type: Refine your search to only Patent

Device for Feeding Envelops to Type-Writing Machines.

Description: Patent for "a device for feeding envelops to type-writing machines, the object being to construct a device of the character described which is adapted to be mounted on the carriage of the machine and feed envelops to be addressed continuously and automatically to the platen on said machine." (Lines 26-32) Includes instructions and illustrations.
Date: June 15, 1897
Creator: Wash, Benjamin S.
Item Type: Refine your search to only Patent

Hand-Car.

Description: Patent for "a hand-car with an auxiliary spring-actuated mechanism which can be used with or without the lever mechanism to propel at a rapid rate of speed." (Lines 12-15) Includes instructions and illustrations.
Date: June 15, 1897
Creator: Rousey, William N.
Item Type: Refine your search to only Patent

Insect-Exterminator.

Description: Patent for a red ant exterminator that works by "withdrawing the air from an ant-nest and substituting therefor a fluid or gas which may be ignited and thereby destroy the lives of the insects." (Lines 18-22) Includes instructions and illustrations.
Date: June 15, 1897
Creator: Schindler, Joseph
Item Type: Refine your search to only Patent

Telephone-Transmitter.

Description: Patent for "a simple transmitter in which the greatest volume of sound may be transmitted without causing grating or rattling." (Lines 8-11) Includes instructions and illustrations.
Date: June 15, 1897
Creator: Alexander, Horace C.
Item Type: Refine your search to only Patent

Valve-Motion.

Description: Patent for "a valve-motion having simple and positive means for varying the points at which the ports of the engine-cylinder are opened and closed to vary the lap and lead, and while accomplishing this result the invention has especial reference to a form of valve-motion designed for use in connection with that type of locomotive or other engines in which there is a comparatively short space between the drive or driving-shaft and the engine-cylinder." (Lines 11-21) Includes instructions and ill… more
Date: June 15, 1897
Creator: Shelb, Peter J.
Item Type: Refine your search to only Patent
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