Abstract: An automatic cooking machine includes a feeding device, a deep-fry device, stove device, a cooker transmission device, a serving device, a washing device, a stir-fry device and a panel each mounted on a base. A program logic controller corresponding with micro-switches and photoelectric sensors controls each of the devices to carry out an automatic cooking process. With such an automatic cooking machine design, the automatic cooking machine can stir-fry and deep-fry like a human cook and is easy to keep in good repair.

Abstract: A dual purpose dust-collecting device consisting of an upright cylinder tapered at the lower end to form a settling chamber containing water. An inner cylinder formed with a plurality of circumferentially spaced tangential inlets is secured to the inside of the cylinder to define therewith an annular gas stream passage. A swinging inlet damper mounted in a manifold having an upper tangential gas outlet and a lower tangential gas outlet leading to the upper and lower ends of the cylinder respectively is employed for selectively admitting gas from the manifold inlet to the upper end of the cylinder or to the annular gas passage. When dirty gas enters the annular passage under the action of an exhaust fan mounted atop the cylinder, a whirling gas stream will be created therein and forced through the tangential inlets into the inner cylinder wherein a rapidly rotating whirlpool will be created which causes separation of particles from the dirty gas stream.

Abstract: Pulverizing apparatus comprising a vertical feed mechanism, a vertical mill cylinder in which raw material is fed, ground at one level, classified at another level and exhausted through a top portion to a collector and filter with particles of undesired sizes being returned to the mill for regrinding.