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Priority to ES104837UpriorityCriticalpatent/ES104837Y/en
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Publication of ES104837YpublicationCriticalpatent/ES104837Y/en
Tensor of patches in drums and the like, characterized in that a rail support formed by two guides which are joined to the inner walls of said box and in the center of said support are arranged inside the drum box in the diametrical direction. It solves a sliding core formed by a box which is open at the top and bottom as well as two of its sides has a vertical groove which has the mission to let pass the pusher surface whose outline is parabolic in order to act from minor to major or vice versa. (Machine-translation by Google Translate, not legally binding)
ES104837U1964-01-171964-01-17
Head tensioner on drums and the like
ExpiredES104837Y
(en)