UNT Libraries Government Documents Department - 3 Matching Results

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Adding-Machine.

Description: Patent for am adding machine by using two disks, one a units-disk with pins in multiples of ten, one a tens-disk, is an annular disk with pin surrounding the units disk, an outwardly spring-pressed holder having a beveled outer end frictionally engaging the pins of the tens-disk and a carrier having oppositely-beveled ends engaged a supplemental pin and one pin on the tens-disks, teeth in the adjacent faces of the holder and carrier, and an idle-gear between them to enable the adding operation.… more
Date: May 12, 1891
Creator: Wright, Joseph W.
Item Type: Refine your search to only Patent

Cotton-Chopper.

Description: Patent for improvements in cotton choppers and thinners by using a combination of “a rectangular frame having the transverse arch, the axle having the ground-wheels and the drive-gears mounted on the axle, a stirrups shafts, cogs, rotary cutters, and a bifureated cam” (p. 2, lines 85-92) to construct the chopper. This new construction will “provide means for easily adjusting the knives or cutters, and for regulating the distance between the stands of cotton.” (Page 1, lines 12-15) Illustrati… more
Date: December 1, 1891
Creator: McCaul, James L.
Item Type: Refine your search to only Patent

Tire-Heater.

Description: Patent for improvements in “tire-heating furnace where tires of various sizes may be heated either independently or continuously and having certain other highly advantageous characteristics.” (Lines 7-13) Illustration is included.
Date: June 16, 1891
Creator: Cook, Nathan H.
Item Type: Refine your search to only Patent
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