States
Counties
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Trolley Wire Finder
Patent for a trolley wire finder. This invention to improvements in trolley-wire finders, and more particularly to its attachment to trolley-poles and trolley-harps as a means of assistance in guiding the trolley wheel has been shifted from or slipped off said trolley-wire and is of advantage as a means of saving time." (8-16). Illustration included.
Date:
March 8, 1904
Creator:
Barnhusrt, William
System:
The Portal to Texas History
Governing Mechanism
Patent for a governing mechanism. This invention relates to governing a plurality of engines in unison. Illustration included.
Date:
March 8, 1904
Creator:
Ball, Philip De C. & Wakefield, Charles L.
System:
The Portal to Texas History