Curing coatings of a moisture-curable composition

Apparatus for curing a coating of a moisture-curable composition applied to the bottoms of shoes comprising:

• a chamber;
• a substantially enclosed plenum overlying said chamber and having a bottom wall common with the top wall of said chamber;
• conveyor means by which shoes are conveyed, bottom uppermost through said chamber;
• means for supplying a continuous stream of air to said plenum, said bottom wall having an array of apertures extending over substantially the whole length of said chamber and opening into the top of said chamber whereby air supplied therethrough directly impinges on the bottom of a shoe being conveyed by said conveyor means through said chamber;
• said apertures further comprising means for heating the air;
• and
• means for supplying a controlled amount of steam to the air, prior to entry of the air into said plenum said conveyor means comprising an endless track and a plurality of carriages, movable along said track, for supporting shoes bottom uppermost, each said carriage having a pair of projecting support means between which the crown of a shoe last can be received for supporting the shoe bottom uppermost, said support means being mounted on said carriage for height-wise adjustment thereon.