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US 4,369,536 AGranted
Apparatus for use in heat setting a lasted shoe upper
AssigneeUSM Corporation
InventorsRaymond Hanson, Anthony M. White
Life of this patent
Estimating the term…
Abstract
The machine comprises a plurality of substantially enclosed channels in which a lasted shoe upper is subjected to hot air blown from both sides of the channel. Conveyors carry the uppers along the channels past inlets located at a distance of from 6 to 20 cms from the center-line of the lasted upper as it passes longitudinally along the channel. This arrangement enables air to be blown on to the uppers at high velocity. Moistening means may be provided to introduce moisture into the air before it is blown on to the uppers.
Claims8
A machine for use in heat setting a lasted shoe upper, said machine comprising:
- a plurality of substantially enclosed channels having air inlets arranged along both sides thereof;
- conveying means operable to convey lasted shoe uppers longitudinally along the channels;
- air blowing means and air moistening means operable to blow moistenable air through the inlets into the channels so that a lasted shoe upper passing through a channel is subjected to air blown thereonto from both sides of the channel;
- and
- heating means operable to heat the air blown by the air blowing means to an elevated temperature.
2 more elements
Dependencies are inferred from the claim text.