UNT Libraries Government Documents Department - 147,953 Matching Results

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Sash Lock and Lift

Description: Patent for sash lock and lift that "relates to improvements in devices for operating window-sashes, and especially provides an improved means for operating the upper sash and locking the same securely in any desired position with respect to the lower sash, thus obviating the necessity for reaching up for the upper sash when it is desired to raise or lower the same or to lock it in open position for the purpose of ventilation" (lines 12-21) including instructions and illustrations
Date: October 22, 1901
Creator: Schairer, John Jacob

Fuel-Economizer.

Description: Patent for "devices which are especially adapted for economizing in the combustion of fuel, especially where used in conjunction with steam-boilers of any description" (lines 8-12) including illustrations
Date: January 29, 1900
Creator: Hobart, John H.

School-Desk.

Description: Patent for improvement in school desks by mounting the desks’ legs on the base-bars, the row of desks so mounted can be moved at the same time by employing the roller devices at the opposite end of the base-bars. The roller devices may be permanently connected with the base-bars of each row or it can be detached if desired; for conveniently removing the desks whenever desired. (Lines 45-55) Illustration is included.
Date: March 24, 1903
Creator: Litsey, Robert G.

Safety Window-Screen.

Description: Patent for a window screen that is adjustable to different size windows and locks in place on the window frame at different heights to provide a cover for the opening left when a window is opened for ventilation for the purpose of preventing anyone from entering the house through the window.
Date: April 23, 1907
Creator: Crosby, Matthew G.

Seed-Hopper

Description: Patent for a seed hopper "constructed to efficiently receive and discharge the cotton seed" (lines 12-13). Illustrations included.
Date: June 30, 1908
Creator: Severson, Oscar W.

Sham-Bolster Frame.

Description: Patent for "sham-bolster frames, and more particularly to that class that are lengthwise adjustable to admit of their being used with beds of any width" (lines 8-12) including illustrations.
Date: January 14, 1902
Creator: Gully, Leontina

Seal-Lock.

Description: Patent for a seal lock for railroad cars, which will show whether an unauthorized entry has been made by requiring the seal ton be broken before the lock opens.
Date: April 27, 1909
Creator: Christian, Edward L.

Saw-Oiling Device

Description: Patent for a hand saw blade oiling device built into the handle of the saw. By holding stops and pulling back on the pistons of the device on the saw handle, oil is released and forced into nozzles which deliver oil onto the blade.
Date: August 14, 1906
Creator: Stewart, Luther F.
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