7 Matching Results

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Design for Colter Brace (open access)

Design for Colter Brace

Design patent for colter-brace for plows.
Date: July 20, 1897
Creator: Darby, Robert J.
System: The Portal to Texas History
Fruit Coring and Halving Machine. (open access)

Fruit Coring and Halving Machine.

Patent for a new and improved fruit corer and halver. This design consists "[i]n a fruit cutter, the combination of the pivoted knives having laterally-concaved facing sides and curved inward to the edges at the upper ends, the arms extending from one side of said knives near their lower end, and the vertically-moving guide-plate provided with the longitudinal guide-grooves parallel at their upper and lower portions and curving inward to meet at their centers, into which grooves the ends of said arms enter for the purpose of opening and closing said knives" (lines 22-32).
Date: November 20, 1888
Creator: Harpst, Edgar S.
System: The Portal to Texas History
Cotton Boll Threshing Machine. (open access)

Cotton Boll Threshing Machine.

Patent for a cotton boll breaking mechanism and a means for breaking cotton bolls which are not opened sufficiently for the cotton to be picked.
Date: March 20, 1917
Creator: Cass, Thomas
System: The Portal to Texas History
Improvement in Damping-Rollers. (open access)

Improvement in Damping-Rollers.

Patent for an improvement of copying-roller through "moistening the leaves of letter-books to take impressions" (lines 15-17), with illustration.
Date: August 20, 1878
Creator: Brown, John Anderson
System: The Portal to Texas History
Switch. (open access)

Switch.

Patent for a switch mechanism for use on railroads. The switch can be installed without cutting the railroad tracks. Instructions and illustrations are included.
Date: March 20, 1917
Creator: Allen, Gus V.
System: The Portal to Texas History
Improvement in Bale-Ties. (open access)

Improvement in Bale-Ties.

Patent for an "invention to produce a cheap and convenient tie, which is durable, and which will not unlock should the rivet holding the button break from any strain on it, the button still holding by means of slots, and the strain being transferred to a slot in the end of the tie in which the button was riveted." (Lines 15-22) Includes instructions and illustrations.
Date: October 20, 1874
Creator: Brown, Maurice T.
System: The Portal to Texas History
Surface Cattle Guard. (open access)

Surface Cattle Guard.

Patent for a new and improved surface cattle-guard. This design "compris[es] a series of parallel triangular bars tapered at their ends and provided with lateral perforated horizontal flanges, the plates to which said flanges are secured, the cross-tie supports, and the solid plank flooring upon which said ties rest, said flooring being some distance below the guard-bars" (lines 55-62).
Date: September 20, 1892
Creator: Berry, John S.
System: The Portal to Texas History