Improvement in Railroad-Switches.
Description:
Patent for improvement in railroad-switches by “mounting a frog on a plate, and provided with pivoted rails or rail-sections, arranged for operation in connection with fixed rail-sections upon the plate, to form a continuity with either line of main rail, and connected below the plate by pivoted bars or levers, to secure a relative action or adjustment of the pivoted or movable rail-sections, whereby a very perfect and simple frog operating to prevent break in the main line or lines is obtained…
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Date:
July 16, 1872
Creator:
Fitzsimmons, Henry
Item Type:
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Patent
Partner:
UNT Libraries Government Documents Department