4 Matching Results

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Automatic Regulator for Pneumatic Flues (open access)

Automatic Regulator for Pneumatic Flues

Patent for a regulated valve to automatically maintain air pressure in a pneumatic conveyor flue. Excessive air pressure causes a secondary valve to open and vent the pressure while at the same time impeding air flow downstream.
Date: May 28, 1901
Creator: Caffey, Charles B.
System: The Portal to Texas History
Violin. (open access)

Violin.

Patent for an improved violin that is meant to "improve the acoustical properties of the instrument whereby it is enabled to give forth a deeper and softer tone, free from the "twang" common in instruments of this character, and second, to improve the mechanical construction of the instrument so that it will be less liable to become split" (lines 26-33).
Date: May 2, 1893
Creator: Clopton, John B.
System: The Portal to Texas History
Hay-Press. (open access)

Hay-Press.

Patent for a hay bailing machine. "The invention relates to bailing-presses, and more particularly to that class adapted for bailing hay, straw, &c.; and it has for one object to provide a simple and efficient construction in which a continuous rotation of the bailing-lever will act in conjunction with a retractile spring to reciprocate the plunger" (lines 7-13). "A further object of the invention is to provide a simple and efficient construction of detent for holding the gate after the hay or other material has been compressed and while the piston is retracted" (lines 14-18). Includes specifications and illustrations.
Date: May 1, 1900
Creator: Garrett, Irvin H.
System: The Portal to Texas History
Rug-Hanger. (open access)

Rug-Hanger.

Patent for the improvement of rug-hangers. The invention consists of multiple rollers that facilitate both the mounting and disengagement of rugs or other large flexible articles of merchandise from the hanger.
Date: May 11, 1915
Creator: Griffin, James S.
System: The Portal to Texas History