Apparatus for forming a container side wall

Details Apparatus for forming a container side wall Apparatus for forming a container side wall

1977-05-18

1978-06-27

Lake, Roy

93 392, 93 441R, 93 81MT, B31B 132

Patent

active

040967883

ABSTRACT:
An apparatus is provided for making a container having a tubular side wall by wrapping a blank around a mandrel to form a tubular side wall wherein a pair of wrapping wings are rotated about the axis of the mandrel by respective drive means. The drive means comprises a pair of coaxial shafts with a respective wrapping means operably connected thereto. The drive means further includes means for rotating the shafts wherein one shaft ceases rotation before the other shaft so that movement of one wing terminates before movement of the other wing whereby side marginal portions of a side wall blank can be overlapped for bonding. The drive means for rotating the shafts is such that there is a lost motion mechanism to permit the differential movement between the wings.

REFERENCES:
patent: 2245900 (1941-06-01), Carew
patent: 2369205 (1945-02-01), Balton
patent: 3958501 (1976-05-01), Richards

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