Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries LtdfiledCriticalMitsubishi Heavy Industries Ltd
Priority to JP15895376ApriorityCriticalpatent/JPS5385035A/en
Publication of JPS5385035ApublicationCriticalpatent/JPS5385035A/en
PURPOSE: To safely conduct hoisting and lowering works by retaining the rotating speed of a winding drum of power constant-speed hoisting and lowering device constant by the operation of a throttle path for controlling the axial movement of a piston engaged with threaded rod in the drum and fluid movement by the operation of the piston.
COPYRIGHT: (C)1978,JPO&Japio
JP15895376A1976-12-291976-12-29Power constant-speed hoisting and lowering device
PendingJPS5385035A
(en)