4 Matching Results

Search Results

Results: 1 - 4

Portable Convict-Cage.

Description: Patent for a portable convict cage for housing prisoners while out in work gangs, which is on wheels, is difficult to attack or leave, and provides numerous cots inside.
Date: May 25, 1909
Creator: Youngblood, David Franklin
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Switch Operating Mechanism for Electric Railways.

Description: Patent for a switch-operating mechanism for electric railways that uses a movable display band to control movement through an electrically operated switch. The arrival of the railway car or street car at a point adjacent to the switch automatically throws the switch to automatically shunt the car from one line to another without a motorman or switchman's intervention.
Date: May 25, 1915
Creator: Craig, Richard M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Car-Coupling.

Description: Patent for "automatic pin-and-link car-couplings in which a sliding spring-actuated block is employed for supporting the coupling-pin in an elevated position preparatory to coupling." (Lines 8-12) Includes instructions and illustrations.
Date: May 25, 1897
Creator: Lee, Charles
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
Back to Top of Screen