The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 1980
Filed:
Sep. 13, 1978
Applicant:
Inventor:
Cesare Sabbioni, Bologna, IT;
Assignee:
CIMA S.p.A. di C. Sabbioni & C., Bologna, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23F / ;
U.S. Cl.
CPC ...
409-3 ; 5110 / ; 409 15 ;
Abstract
Gear cutting apparatus comprises a hob 9 carried by a radial slide 1 and an axial slide 16, which are moved by independent d.c. motors 20 and 17. A main variable-speed motor 2 on the radial slide 1 is kinematically connected to the hob 9 and to a turntable 10 for the workpiece. The speed of movement of the axial slide is controlled by an electronic circuit which receives signals from dynamo-tachometers kinematically connected respectively to the turntable 10 and to the motor 17 moving the axial slide 16. The movement of the radial slide 1 is controlled in accordance with that of the axial slide 16 by another electronic circuit.