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Screen-Operating Mechanism for WIndow-Screens.
Patent for a screen-operating mechanism for window-screens. It is meant to hide the mechanism from view and to improve the way the screen is raised and lowered. It also moves the "upper sash in one direction moves the screen in the reverse direction, the construction being such that the motion-transmitting gearing does not in any manner interfere with the use of ordinary window-sashes balanced by weights or springs, or the use of sashes of which the upper one only is movable" (lines 24-30).
Date:
December 17, 1895
Creator:
Leary, Frank S.
System:
The Portal to Texas History
Rail Bond For Electric Railroads
Patent for improvement to rail-bonds for electrical railroads to aid in maintaining electrical contact, which will then reduce the loosening of parts which results in broken contact. Illustrations and instructions are included.
Date:
August 17, 1897
Creator:
Hunter, Victor Emmet
System:
The Portal to Texas History
Railroad-Tie.
Patent for certain new and useful improvements in railroad-ties.
Date:
May 17, 1898
Creator:
Armstrong, Henry T.
System:
The Portal to Texas History