Rockwall Co.

Rockwall Co.

Date: [1890..1925]
Creator: unknown
Description: Blue line print of survey map of Rockwall County, Texas, showing rivers, creeks, original land grants or surveys, and towns. Scale [ca. 1:160,000] (6000 varas to 1 1/4 of an inch).
Contributing Partner: Hardin-Simmons University Library
Pumping Apparatus.

Pumping Apparatus.

Date: March 27, 1894
Creator: Nevill, William Birt
Description: Patent for a pumping apparatus that has "certain improvements in that class of pumps known as ejectors for raising liquids out of wells by means of compressed air or stream" (lines 9-12). The pump quickly and easily raises large amounts of water and is an improvement on a patent previously granted to the inventor (No. 474,819).
Contributing Partner: UNT Libraries Government Documents Department
Ejector-Pump.

Ejector-Pump.

Date: January 23, 1894
Creator: Nevill, William Birt
Description: Patent for an improved ejector pump that operates using air or steam pressure, and pumps water any height or distance. The invention is easily operated and practical.
Contributing Partner: UNT Libraries Government Documents Department
Improvement in Construction of Jails.

Improvement in Construction of Jails.

Date: October 19, 1875
Creator: Seeber, John A. & Croxton, James C.
Description: Patent for improvement in construction of jails; in which a system of flues in between layers of a double floor provide ventilation through grates in the walls and upper layer of the floor, without compromising security.
Contributing Partner: UNT Libraries Government Documents Department
Improvement in Sulky-Plows.

Improvement in Sulky-Plows.

Date: August 28, 1877
Creator: Renfro, Roberson A.
Description: Patent for an improvement on sulky-plows which allows it to be adjusted for different uses.
Contributing Partner: UNT Libraries Government Documents Department
Improvements in Traction-Engines.

Improvements in Traction-Engines.

Date: October 14, 1879
Creator: McGregor, Montague M. & Croxton, James C.
Description: Patent for improving traction engines for use in hauling on farms and farm roads. Includes instructions and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Bolt and Nut-Lock.

Bolt and Nut-Lock.

Date: January 21, 1896
Creator: Nevill, William B.
Description: Patent for "a nut-lock of such construction that it may be used either as a permanent nut-lock or one in which the locking feature may be thrown out of engagement when it is desired to remove the bolt for any purpose." (Lines 15-20) Includes instructions and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Cattle-Guard.

Cattle-Guard.

Date: January 5, 1897
Creator: Nevill, William Birt
Description: Patent for a railway cattle-guard that is simple, inexpensive, and efficient. It prevents the cattle "from traversing a railway-track in order to pass form one field or inclosure to another" (line 12-14). It has spurred rollers, and has a unique way of mounting rollers or rotary ties, in that they do not block the track.
Contributing Partner: UNT Libraries Government Documents Department
Antirefilling Bottle.

Antirefilling Bottle.

Date: January 5, 1897
Creator: Nevill, William B.
Description: Patent for a bottle that can be easily sealed but cannot be resealed after opened. There is a groove in the neck of the bottle, and the cork is placed below the groove. The cork is hollowed out and a plug is placed in the cork. The cork is hollowed out and a plug with a groove around it is placed in the cork.An elastic compressible locking-ring fits in the gap the groove in the bottle and the groove in the plug create.
Contributing Partner: UNT Libraries Government Documents Department
Trace-Fastener.

Trace-Fastener.

Date: June 29, 1897
Creator: Brownwell, John A. F.
Description: Patent for improvements in trace fasteners, with illustrations.
Contributing Partner: UNT Libraries Government Documents Department
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