PURPOSE: To enable continuous compression of throw-away food containers with less labor with a treating machine for compressing said containers by reciprocating motion of a piston by constituting specifically a compressing section.

CONSTITUTION: The gentle slope 14 in the lower part on the inside of a refuse feed port 12 provided in the upper front part of a main unit 11 of a treating machine is used as a compressing section in common use as a refuse receiving section. A passage 21 to a refuse container 22 having a shutter 15 is formed. On the other hand, a part of a piston 16 is made parallel with the slope 14 to form a compressing section 16a. A part adjacent to said compressing section is formed to face the top surface of a shutter 15, thereby forming a projecting part 16b for pushing. When the operator charges refuse such as plastic containers, paper cups or the like through a feed port 12, a switch 20 is turned on by the operation of a door 13 then an inversion motor 18 lowers the piston 16, thereby compressing the refuse accumulating on the slope 14. A switch 17 senses the completion of compression and the motor 18 runs backward to move the piston 16 to the home position where the piston stops. The compressed refuse is pushed by the refuse charged afterward and is moved over the shutter 15. The refuse drops into a recovering bag 23 in the container 22 when the part 16b is pushed by the 2nd descending of the piston 16.