Title:
Load indicator for cranes
United States Patent 2434138
US Patent References:
/0532868.html
- - 0532868

/1081843.html
- - 1081843

/1238337.html
- - 1238337

/1298175.html
- - 1298175

Elevator-signaling system
- - 1581383


Inventors:
Adams, Cyril S.
Publication Date:
01/06/1948
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Assignee:
Adams, Cyril S.
Primary Class:
177/48
Other Classes:
212/283, 73/862.625, 200/16R, 340/666, 200/85R, 177/147, 73/862.560, 73/862.641, 340/685, 212/278, 254/270
International Classes:
B66D1/58; G01G3/02; G01G19/18; G01G23/36; B66D1/54; G01G3/00; G01G19/00; G01G23/18
US Patent References:
1890539Electrical control means for trolley buckets
1890679Traversing hoist
Foreign References:
GB138707A
FR521975A