Abstract: In an automatic vending machine in which a number of items are stored in a commodity storage and cooled by a cooling unit included in a refrigerating circuit, a temperature sensor detects a storage temperature within the commodity storage to produce a temperature signal. Responsive to the temperature signal, a calculating unit calculates a temperature variation rate prior to a defrosting operation of a defrosting unit, which is intermittently carried out for the cooling unit. With reference to the temperature variation rate, a defrost control part controls the defrosting operation.

Abstract: In an automatic vending machine in which a number of items are stored in a commodity storage and cooled by a cooling unit included in a refrigerating circuit, a temperature sensor detects a storage temperature within the commodity storage to produce a temperature signal. Responsive to the temperature signal, a calculating unit calculates a temperature variation rate prior to a defrosting operation of a defrosting unit, which is intermittently carried out for the cooling unit. With reference to the temperature variation rate, a defrost control part controls the defrosting operation.

Abstract: A coating facility of reducing storage spaces and equipments upon storing works thereby decreasing the installation cost. During operation of conveying lines between each of steps, works W conveyed from a preceding step are loaded to hangers H of an overhead conveyor 2 at a loading position P1, applied with pretreatment and coating, transferred at a transferring position P2 to carriers T of a floor conveyor 9, dried and then re-transferred again at a re-transferring position P3 to the overhead conveyor 2, down loaded from the hangers H at an unloading position P4 and conveyed to a succeeding step.

Abstract: A conveyor device for applying a high voltage to a work transported in a coating booth includes a conveyor device main body having a running base running in the coating booth and an electrode attachment attached to the running base being insulated therefrom for carrying the work and applying a high voltage to the work, an electromagnetic wave transmitter disposed in the coating booth for transmitting electromagnetic waves to the running base during running in a high voltage application zone and a low voltage generator means for receiving electromagnetic waves from the electromagnetic transmitter means and a high voltage generator for stepping-up a low voltage outputted from the low voltage generator and supplying a high voltage to the electrode attachment, mounted on the running base.