Boot and shoe making – Lasting machines – Rotated nipper or wiper
Patent
1992-04-23
1994-04-19
Sewell, Paul T.
Boot and shoe making
Lasting machines
Rotated nipper or wiper
A43D 2100
Patent
active
053034422
ABSTRACT:
A side (or heel seat and side) lasting machine comprises two lasting rollers (232; 232') arranged one at either side of a shoe support (20) by which a shoe is supported bottom up. Each roller (232; 232') has a helical rib arrangement (294) which, when rotated while in pressing engagement with the shoe bottom, effects an inwiping movement on the lasting marginal portions of the shoe upper. The rollers (232; 232') are inclined to the longitudinal center line of the shoe support, with their free ends directed heelwardly; the acute angle subtended between each center line and the roller axis of rotation is in the order of 50.degree. to 62.degree., preferably 57.degree.. The lasting rollers (232; 232') are of non-metallic material, preferably synthetic polymer or ceramic material, and have a single helical rib the pitch of which is in the range of 10 to 15 mm.
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Flanders James R.
Hartshorn Frank
Storer Richard E.
Brine Aubrey C.
British United Shoe Machinery Limited
Kavanaugh Ted
Meegan Owen J.
Sewell Paul T.
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