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1. (WO1991005697) CALIBRATED PITCH CHANGE LINK
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/005697 International Application No.: PCT/US1990/003513
Publication Date: 02.05.1991 International Filing Date: 25.06.1990
IPC:
B64C 27/00 (2006.01) ,B64C 27/54 (2006.01) ,F16C 7/06 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
64
AIRCRAFT; AVIATION; COSMONAUTICS
C
AEROPLANES; HELICOPTERS
27
Rotorcraft; Rotors peculiar thereto
B PERFORMING OPERATIONS; TRANSPORTING
64
AIRCRAFT; AVIATION; COSMONAUTICS
C
AEROPLANES; HELICOPTERS
27
Rotorcraft; Rotors peculiar thereto
54
Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
C
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
7
Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
06
Adjustable connecting-rods
Applicants:
BELL HELICOPTER TEXTRON INC. [US/US]; 600 E. Hurst Boulevard Fort Worth, TX 76101, US
BOEING HELICOPTERS [US/US]; The Boeing Company Stewart Avenue & Industrial Highway Route 291 Ridley Park, PA 19078, US
Inventors:
FORD, Russell, W.; US
SHEPHERD, David, S.; US
Agent:
KORN, Martin; Ross, Howison, Clapp & Korn 740 E. Campbell Road Suite 900 Richardson, TX 75081, US
Priority Data:
421,02013.10.1989US
Title (EN) CALIBRATED PITCH CHANGE LINK
(FR) COUPLEUR CALIBRE POUR LE CHANGEMENT DU PAS DE L'HELICE
Abstract:
(EN) A calibration device for a pitch change link (10) for a helicopter rotor grip where the link (10) includes a bearing (12) includes a plurality of sequential reference numbers (22) equally spaced apart and concentrically disposed around the link (10). An indexing device (30) is mounted to the bearing (12) and is disposed adjacent to the plurality of sequential reference numbers (22) for locating one of the plurality of reference numbers (22) representing the length of the link (10). The indexing device (30) includes a window (40) one of the plurality of reference numbers (22) as the link (10) rotates.
(FR) Système de calibrage pour un coupleur de changement du pas de l'hélice (10) destiné à une mâchoire de rotor d'hélicoptère dont le capteur (10) comprend un support (12) qui se compose d'une pluralité d'indices sequentiels (22) séparés les uns des autres de manière égale et disposés de manière concentrique autour du coupleur (10). Un dispositif d'indexage (30) est monté sur le support (12) et il est adjacent à la pluralité d'indices sequentiels (22) pour situer l'un des indices (22) représentant la longueur du coupleur (10). Le dispositif d'indexage (30) comprend une fenêtre (40) où s'affiche un des indices de la pluralité d'indices (22) lorsque le coupleur (10) tourne.
Designated States: AU, BR, CA, JP, KP, NO
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1990059648