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Individual
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Individual
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Priority to ES206239ApriorityCriticalpatent/ES206239A3/en
Publication of ES206239A3publicationCriticalpatent/ES206239A3/en
AN ELEVATION MECHANISM, characterized in that it essentially comprises the assembly formed by: a crankcase divided into two main parts, the first of which contains a gear train, while the second contains the electric motor that drives said gear train, as well as a switch for starting and stopping the previous electric motor; a chain that is coupled to a lifting hook and passes through a sprocket, which acts like a pinion, dragging the lifting chain, with the particularity that said pinion is coupled to the last gear of the aforementioned train; an auxiliary guide part of the chain, which is arranged below the drive pinion of the chain and in the vicinity of the latter; a brake, which is mechanically associated with the switch, for braking the electric motor in the stop position of the switch and for releasing it in the running positions of said motor; some pins and stops that are mounted on the chain and on the switch for the automatic stop of the motor in the positions of maximum lifting and lowering of the chain. (Machine-translation by Google Translate, not legally binding)
ES206239A1952-11-121952-11-12An elevation mechanism (Machine-translation by Google Translate, not legally binding)
ExpiredES206239A3
(en)