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XIFRA PONCE PEDRO
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XIFRA PONCE PEDRO
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Application filed by XIFRA PONCE PEDROfiledCriticalXIFRA PONCE PEDRO
Priority to ES0063694UpriorityCriticalpatent/ES63694Y/en
Publication of ES63694UpublicationCriticalpatent/ES63694U/en
Application grantedgrantedCritical
Publication of ES63694YpublicationCriticalpatent/ES63694Y/en
An improved trapezoidal pulley, essentially characterized in that the hub thereof has on one side a circular recess whose inner wall is provided with a female thread, while the opposite side of the hub of the pulley has a cylindrical projection, whose The periphery is threaded, so that together two or more elementary pulleys are joined by the respective male and female thread of each one of them, forcing a pulley as many grooves as elementary pulleys have been joined. (Machine-translation by Google Translate, not legally binding)
ES0063694U1958-01-161958-01-16
A perfected trapezoidal pulley
ExpiredES63694Y
(en)