Stiff Legged Crane

The Stiff Legged Crane was manufactured by the American Hoist and Derrick Co. in St. Paul, Minnesota. The estimated shaft horse power is 20 when running with 100 PSI (Hobby Boiler Pressure).

Control barrels for the crane. From Left to Right “Boom Control”, “Lift Line”, unused, “Boom rotation”.

Crane “Barrels” – same as above but a slightly different angle

Crane Boom on Rest – The Boom is in it’s storage position on the Boom Rest.

Crane Central Vertical and Two Legs – This shows the central vertical with the rotation line at the bottom below the boom on the edge of the circular structure.

Manufacture Info and Serial Number

One of Two Power Pistons – The Crane has two steam power piston on either side at the back.

The following PDF is a book regarding this company.