Gravity discharge furnace for heating production parts

In a gravity-discharge oven for heating a large number of production parts, which pass through the oven along slipway on which they lie, the parts being pushed through the oven by means mounted at the entrance to the said oven, for exerting a force upon the nearest part on the slipway to push all of the parts, as a column of parts over a stretch whose length is determined by the stroke of the pushing mechanism, the improvement including a beam, means for attaching said slipway to said beam in such a way that said beam swings, and a vibrator that acts upon said slipway with an acceleration of vibratory motion that has a component perpendicular to the direction of transport of the parts.