UNT Libraries Government Documents Department - 11 Matching Results

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Reed-Organ.

Description: Patent for a cheap and simple reed-board that provides a uniform tone that is produced through the register or registers and allows the freedom of communication between the reed-cells and pipe or resonance cells.
Date: January 30, 1906
Creator: Preston, Percy C.
Item Type: Refine your search to only Patent

Telephone Transmitter and Receiver

Description: Patent for a telephone transmitter and receiver. The device is for lines "known as 'long-distance' telephones for the purpose of taking up the weakened vibrations and re-energizing them...transmitting them with increased volume" (line 12-15) illustration included.
Date: June 30, 1903
Creator: Sammons, Oliver P.
Item Type: Refine your search to only Patent

Gate

Description: Patent for "a gate which can be built at a comparatively low price, which will be durable and practical, and which can be opened from either side with ease" (lines 13-17).
Date: July 30, 1901
Creator: Baker, Cicero McRee
Item Type: Refine your search to only Patent

Gate.

Description: Patent for a new and improved gate. This design "relates to improvements in gates that are balanced by a weight and opened in either direction by ropes operating in conjunction with circular inclined tracks and rollers; and the object of [the] improvement is to provide a gate that may be readily opened and closed by a person seated in a vehicle" (lines 7-14).
Date: December 30, 1884
Creator: Drake, Edwin L.
Item Type: Refine your search to only Patent

Churn Power.

Description: Patent for a new and improved churn-power. This design is "to provide a spring-power and suitable gearing for operating the dasher, with a view of rendering the same in a high degree effective, convenient, and especially adapted to the requirements of service; [and], to afford facilities for the proper adjustment of the device to the different sizes of churns, and to provide for the quick and convenient detaching of the churn from the driving mechanism" (lines 12-21).
Date: September 30, 1884
Creator: Lawrence, Joseph A.
Item Type: Refine your search to only Patent

Improvement in Double-Bitted Drills.

Description: Patent for "an easy mode of straightening wells while drilling them through rock or earth, and also for enlarging the same into a cistern when it is desired to keep on hand a large supply of water." (Lines 8-13) Includes instructions and illustrations.
Date: May 30, 1876
Creator: Yarbrough, William H.
Item Type: Refine your search to only Patent

Improvement in Air-Cooling Apparatus.

Description: Patent for "the construction and arrangement of a refrigerator for the purpose of cooling and maintaining a low and dry temperature, for preserving fresh meats and vegetables, and for cooling rooms for any purpose." (Lines 10-15) Includes instructions and illustrations.
Date: March 30, 1875
Creator: Hyatt, Frank A.
Item Type: Refine your search to only Patent
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