Abstract: A storage method in which fruits and/or vegetables immediately after harv are stored in a storage chamber which maintains controlled storage atmospheres having a total pressure of not lower than 400 Torr and below the atmospheric pressure (760 Torr), an oxygen partial pressure of about 15 to about 145 Torr, a carbon dioxide partial pressure of about 15 to about 115 Torr, a relative humidity of not lower than 90%, and a temperature ranging between 0.degree. and 15.degree. C.

Abstract: A door frame cleaner for coke ovens in which a supporting frame is mounted on a main frame, which is movable toward or away from a door frame, in such a way that the supporting frame can be moved laterally relative to the main frame in parallel therewith; a vertically reciprocable frame is mounted on the supporting frame at the front side thereof remote from the main frame; at least one pair of L-shaped levers are horizontally pivotably mounted on the vertically reciprocable frame; a front surface scraper is mounted on an outwardly extended arm of each L-shaped lever while an inner surface scraper, on the forwardly extended arm thereof; and a bias spring is so loaded that the forwardly extended arms of the L-shaped levers are normally moved toward each other, whereby even when there exist some misalignments between the scrapers on the one hand and the door frame on the other hand as the main frame is advanced, the supporting frame is so moved that the scrapers are automatically aligned with the door frame and