B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
153/19
B21D 9/00 (2006.01) B21D 9/07 (2006.01)
Patent
CA 1202871
ABSTRACT OF THE DISCLOSURE A pipe bending machine has a travelling carriage, a bending template, a bending mandrel arranged in a pipe to be bent near the bending template and having a mandrel rod, a cylinder-piston unit for withdrawing the mandrel, and a measuring device associated with the mandrel rod and arranged to actuate, in the event of overloading of the mandrel rod, a switch element so as to stop or eliminate the overloading of the mandrel or the mandrel rod.
439017
Fetherstonhaugh & Co.
Schwarze Rigobert
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