ES53407U - Rule for the fast calculation of transmissions with flexible elements (Machine-translation by Google Translate, not legally binding)
- Google Patents
Rule for the fast calculation of transmissions with flexible elements (Machine-translation by Google Translate, not legally binding)
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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Pirelli and C SpA
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Pirelli SpA
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Application filed by Pirelli SpAfiledCriticalPirelli SpA
Priority to ES0053407UpriorityCriticalpatent/ES53407Y/en
Publication of ES53407UpublicationCriticalpatent/ES53407U/en
Application grantedgrantedCritical
Publication of ES53407YpublicationCriticalpatent/ES53407Y/en
A rule for the rapid calculation of transmissions with flexible elements, essentially characterized by the fact of comprising a plurality of concentric disks, of different dimensions, provided with openings, being marked in said discs logarithmic scales corresponding to the characteristic elements of the transmissions, readable directly on the two external surfaces of the ruler or on the projecting edges of the larger diameter or indirectly readable disks through the openings. (Machine-translation by Google Translate, not legally binding)
ES0053407U1956-03-161956-03-16
Ruler for the rapid calculation of transmissions with flexible elements
ExpiredES53407Y
(en)
Simplified device of numerator dater, based on printing plate and insert year indicator adaptable to said plate (Machine-translation by Google Translate, not legally binding)