Abstract: An automatic detaching structure for a hook device includes a hook, a power unit, a tongue plate and an off-hook member. The power unit comprises a motor which is remote-controlled. The motor has a shaft. A first transmission transforming mechanism and a first gear are provided on the shaft. The first transmission transforming mechanism and the first gear mesh with a second transmission transforming mechanism and a second gear, respectively, to link a rotating lever and a transmission lever. The rotating lever links the tongue plate in an open status, while transmission wheels on the transmission lever pull the off-hook member to detach a rope of a cargo from the hook.

Abstract: An automatic detaching structure for a hook device includes a hook, a power unit, a tongue plate and an off-hook member. The power unit comprises a motor which is remote-controlled. The motor has a shaft. A first transmission transforming mechanism and a first gear are provided on the shaft. The first transmission transforming mechanism and the first gear mesh with a second transmission transforming mechanism and a second gear, respectively, to link a rotating lever and a transmission lever. The rotating lever links the tongue plate in an open status, while transmission wheels on the transmission lever pull the off-hook member to detach a rope of a cargo from the hook.

Abstract: A process which incorporates the recovery of silver from photographic film into the recovery of silver from photographic development waste solution is provided. In the process, a silver bearing emulsion layer coated on the surface of the photographic film is dissolved in the waste solution which is in turn subjected to an electrolysis treatment to recover metallic silver therefrom.

Abstract: A process for recovering silver oxide and metals from a spent silver oxide button cell. The process relates to a physical process which consists of a heating and a cooling process to separate the shell and the content (silver, silver oxide) of the spent silver oxide cell, so that silver oxide, silver and other metals such as zinc, iron and nickel can be recovered and reused.