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:
Sep. 20, 1977
Filed:
Apr. 19, 1976
Applicant:
Inventor:
Leonard Stanley Snell, Bristol, EN;
Assignee:
Rolls-Royce (1971) Limited, , EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03B / ;
U.S. Cl.
CPC ...
4151 / ; 74 8915 ;
Abstract
A mechanism for varying the angle of attack of stator vanes of a compressor in a turbo machine. The vanes in each row are all connected to a respective encircling ring. The rings from all the rows of variable stators are connected to a beam which lies along the outside of the casing. The beam is connected at about its middle to a screw jack actuator which is bolted to the casing and one end of the beam is pivotted to the casing with a compound pivot which accommodates the compound movement of the beam caused by the straight line movement of the screw jack actuator.