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Hammerhead Crane (side view) - John Fuller
A thoroughly modern freelance Hammerhead crane in pristine Red/Green, standing 3' high and with a 3' boom. John continues to show his mastery of closed construction; the boom is built with a 2.5" equilateral section, fully plated. Support for the boom is by twin tubes in compression, carried at about a 30 degree angle back to the superstructure. Swivelling follows Continental practice, with a journal at the top of the tower formed by a 6" pulley centred in 7.5" circular strips by 1“ pulleys with rubber rings, whilst thrust is taken at a lower level by a ball bearing. The main and auxiliary hoists have laying gear on the drums which keeps the ropes evenly laid and engagement of the drive automatically releases an external contracting brake.
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