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Treasure Vault for Railway Cars.

Description: Patent for a new and improved safe. This design consists in "a safety treasure-vault for express cars, &c., with the combination of the walls, floor, and roof of the vault constructed of bullet-proof steel plate riveted together at their corners, and the angle-irons to which the walls, floor, and roof are riveted, the bullet-proof steel-plate door, the parcel-delivery window, the combined desk-shelf and bullet-proof shutter, the said vault provided with a port-hole and the bullet-proof plug tha… more
Date: July 3, 1888
Creator: Olsson, Joseph
Partner: UNT Libraries Government Documents Department

Earth Borer and Excavator

Description: Patent for an Improvement in Earth Boring and Excavating Machines whereby the machines may operate continuously except for the addition of shaft and belt sections.
Date: July 24, 1880
Creator: Carley, John Wesley
Partner: UNT Libraries Government Documents Department

Cotton Gin Attachment.

Description: Patent for a new attachment for cotton gins. This design consists in "[t]he combination, in a cotton-gin, of the carrier, feed-roller, having teeth or projections, and the adjustable sliding rake . . . [and] the combination of the carriers, the latter having covering, receiver, toothed feed-roller, adjustable rake, gin-saws, and brush" (lines 68-75).
Date: July 12, 1881
Creator: Compton, Willis W.
Partner: UNT Libraries Government Documents Department
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