UNT Libraries Government Documents Department - 121 Matching Results

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Bolt Lock.

Description: Patent for a new and improved bolt-lock. This design is for a flat piece of metal (the "lock") that secures the head of the bolt so that, when the adjoining nut becomes rusted, the nut and bolt can be successfully separated without damaging the surrounding material.
Date: October 18, 1881
Creator: Berry, John T.
Item Type: Refine your search to only Patent

Cable Stopper.

Description: Patent for a new and improved cable or chain stopper. For this design, "the chain-links lie diagonally in opposite directions upon the recessed bottom of the clamping-box, and the clamping-block has a similarly recessed under face . . . and a forked lever is employed to press the clamping-block toward the bottom of the clamping-box, and thereby apply the required force to the chain to lessen its speed as it runs out" (lines 18-32).
Date: October 18, 1881
Creator: Lucas, Thomas P.
Item Type: Refine your search to only Patent

Corn-Planter.

Description: Patent for improvement of corn-planters, with illustrations. The purpose of this corn-planters patent was to improve existing corn-planters through, "peculiar construction and combination of devices, that will be more fully set forth hereinafter, and particularly pointed out in the claims" (lines 9-12).
Date: October 18, 1887
Creator: Koepke, William
Item Type: Refine your search to only Patent

Corn Planting Attachment for Plows.

Description: Patent for a new and improved corn-planting attachment for plows. This design "consists in the improved construction and combination of parts of such an attachment, which may be secured to the rear end of the beam of a common breaking-plow, having a wheel running in the furrow operating the dropping mechanism" (lines 22-28).
Date: October 18, 1887
Creator: Aten, Frank L.
Item Type: Refine your search to only Patent

Covering for Meats.

Description: Patent for an aromatic asphaltum and paraffin wrap to preserve, protect from air and moisture, and transport meat that will not become brittle under cold temperatures.
Date: October 18, 1921
Creator: Pletcher, Lyle J.
Item Type: Refine your search to only Patent

Electric Call or Signal Apparatus.

Description: Patent for a new and improved electric call or signal apparatus. This design consists in "a telegraph or telephone circuit, the combination, with a polarized electro-magnet and a short circuit around the same, which is closed when the magnet is transversed by a constant current of a given polarity, of a battery having the proper pole to line, a switch for connecting the line and battery circuits, and a telephone in the battery circuit, whereby the telegraph or telephone line may be tested" (lin… more
Date: October 18, 1887
Creator: Foster, George W.
Item Type: Refine your search to only Patent

Engine.

Description: Patent for a new engine designed to maximize power output by using a single crank's bearing surface and increase the crank power without lengthening the piston travel.
Date: October 18, 1921
Creator: Ingram, Joseph D.
Item Type: Refine your search to only Patent

Floor-Clamp.

Description: Patent for a simple and inexpensive floor-clamp that aids in laying floors so that the floor is laid uniformly and has a good joint. This prevents the floors from warping or curving.
Date: October 18, 1892
Creator: Zauner, Alexander
Item Type: Refine your search to only Patent
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