Pipe expander

Details Pipe expander Pipe expander

B - Operations, Transporting

21

D

153/16

B21D 41/02 (2006.01) B21D 39/20 (2006.01)

Patent

CA 1267599

- 1 - ABSTRACT A pipe expander head and pipe expander is disclosed which comprises a housing 30, in which a pin 50 is mounted. The pin 50 has a tapered end 54 and is provided with a plurality of teeth 60. The teeth 60 mesh with a gear assembly 62, 66 and 68 which in turn are coupled to a handle 72. upon rotation of the handle 72 the gear assembly 62, 66 and 68 is rotated to drive the pin to expand an expander head. The expander head includes a plurality of segments 39, 41, 43, 45, 47 and 49 which are coupled together with a circular spring 96. The expander head segments each include annular stepped expanding portions 72, 74, 76 and 78 and the stepped portions are provided with recesses 80 for accommodating a work piece to be expanded.

519057

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