Machine for applying sealing material for a crown cap and the like

Claim 1

A machine for applying sealing material for crown caps and the like which comprises an axially rotatable indexing dial formed with a predetermined number of crown-receiving parts, the same number of spindle assemblies mounted beneath said indexing dial and adapted for both axial rotation and rotation with said indexing dial, the same number of nozzle units adapted for rotation with said indexing dial for supplying sealing material to the crown caps carried by said indexing dial, same number of valve assemblies housing said nozzle units, a main shaft provided with a piston at the top, a cylinder covering said mainshaft, said cylinder being mechanically connected with said valve assembly including said nozzle unit, said cylinder being raised in its position under the action of a high-pressure fluid at the time of the haphazard cessation of operation of the machine for stopping the injection of the sealing material, the operation of the machine being restarted as the said cylinder is lowered in its position under the action of the high-pressure fluid.