6 Matching Results

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Apparatus for the Manufacture of Ice. (open access)

Apparatus for the Manufacture of Ice.

Patent for a new and improved ice maker. This design calls for "two or more sheets of galvanized iron or other metal set in a tank of fresh water, one on either side of the evaporation-pipes, and held in a position parallel to each other by anchors or yokes that connect them" (lines 15-20). This eliminates the need for strong (ammoniacal) brine and is a faster, more reliable, and less leaky ice-making process than previous ones that used said brine.
Date: March 2, 1880
Creator: Zilker, Andrew J.
System: The Portal to Texas History
Bullet. (open access)

Bullet.

Patent for a new and improved bullet. This design calls for a cavity at the base of the bullet and a tube of flexible material to be inserted snugly into the cavity. This results in less wobbling after the bullet has been fired.
Date: October 12, 1880
Creator: Petmecky, Joseph C.
System: The Portal to Texas History
Windmill. (open access)

Windmill.

Patent for windmills by making them self-regulating and "it consists in the construction and arrangement of devices whereby the force of the wind is made to move the wind-wheel and crank-shift backward and turn the vane, and also in the devices for turning the vane at will" (lines 14-18).
Date: February 3, 1880
Creator: Tevis, James H.
System: The Portal to Texas History
Rotary Engine. (open access)

Rotary Engine.

Patent for a new and improved rotary engine. This design consists "[i]n a rotary engine, the combination of the wheel having two circumferential channels and radial recesses, with the notched pistons, fitted in the radial recesses of the wheel, and the adjustable cam connected with the side casings and fitted into the notches of the pistons" (lines 90-96).
Date: August 17, 1880
Creator: Cross, David L.
System: The Portal to Texas History
Seeding-Machine. (open access)

Seeding-Machine.

Patent for "a new and useful improvements in Seeding-Machines" (lines 5-6) the light draft interchangeable seeding-machine can be converted from a cotton-planter to a corn-planter, and vice versa. The invention is "compact, simple, and durable" (line 13)
Date: June 29, 1880
Creator: McCall, John L.
System: The Portal to Texas History
Seed Planter and Cultivator. (open access)

Seed Planter and Cultivator.

Patent for a new and improved planter and cultivator. This design "relates to combined seed-planters and cultivators intended for different kinds of seeds and crops; and it consists of a novel construction of machine having a detachable harrow and seed-drum, and being what [the inventors] call a 'universal seed-planter and cultivator'" (lines 14-20).
Date: October 5, 1880
Creator: Thompson, James W. & Lloyd, James
System: The Portal to Texas History