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Products such as small chocolate bars, intended to be uniformly aligned on other products passing on a conveyor, such as pieces of dough in the manufacture of chocolate-filled cookies, are placed in a hopper having resiliently mounted walls. Beneath the hopper is a feeder comprising a cylindrical-se

Products such as small chocolate bars, intended to be uniformly aligned on other products passing on a conveyor, such as pieces of dough in the manufacture of chocolate-filled cookies, are placed in a hopper having resiliently mounted walls. Beneath the hopper is a feeder comprising a cylindrical-sector-shaped feeder part. The feeder part includes a slot through which the chocolate bars can be disposed on the pieces of dough. By means of a motor-driven main crank assembly and a supplementary crank assembly, a perturbed sinusoidal motion is imparted to the feeder part, thus ensuring that the chocolate bars are consistently introduced into the feed slot, particularly in the vicinity of the walls of the hopper. A blocking and release mechanism, connected to the feeder and controlled by a sensor unit, ensures that only one chocolate bar drops on each piece of dough.

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A method of vertically orienting elongated first products for automatically feeding them to and positioning them on second products carried on a conveyor comprising positioning said first products in a receptacle disposed above said conveyor, said receptacle having a pair of spaced walls, the bottom

A method of vertically orienting elongated first products for automatically feeding them to and positioning them on second products carried on a conveyor comprising positioning said first products in a receptacle disposed above said conveyor, said receptacle having a pair of spaced walls, the bottom of said receptacle being defined by a feeder part having a downwardly extending feeder opening therein, and moving said feeder part with perturbed sinusoidal motion so that said feeder opening travels back and forth substantially between said walls in perturbed sinusoidal motion to cause said first products to pass through said feeder opening and onto said second products.