Grade crossing gate
United States Patent 2488313
US Patent References:
/0940786.html
- - 0940786

Crossing-gate
- - 1384544

Railroad-crossing gate
- - 1629605

Closure operator
- - 1773243

Traffic governor
- - 1969286


Inventors:
Samuel, Miskelly
Publication Date:
11/15/1949
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Assignee:
Western, Railroad Supply Compan
Primary Class:
49/334
Other Classes:
246/125, 192/105CD, 188/185
International Classes:
B61L29/24; B61L29/00
US Patent References:
2010925Automatic power coupling and cut-off
2267632Revolving door mechanism
2295419Automatic crossing gate
2353942Highway crossing gate
2362710Grade crossing gate
2372579Speed governor