Power plants – Reaction motor – Air passage bypasses combustion chamber
Patent
1978-02-07
1979-11-20
Croyle, Carlton R.
Power plants
Reaction motor
Air passage bypasses combustion chamber
60 3931, 74 96, 292111, 403230, 403330, F02C 720, E05C 500, E05C 1912
Patent
active
041746090
ABSTRACT:
One component, such as a rear cowling of a turbojet engine nacelle, is held o another component, such as a flange of the engine housing, by a plurality of lockbolts. The lockbolts are synchronously controlled to effect attachment or detachment of the cowling or other component. Each lockbolt includes a strap which may be fixed with respect to the stationary component such as the flange. Each lockbolt also includes a tie bar having a hook at one end for cooperation with the associated strap and a pivot shaft at the other end. The pivot shaft rides in a slide track which may be disposed in a second support attached to the removable component. There is a moving part which may be carried by the second, stationary support, the moving part including a cam which cooperates with the pivot shaft of the tie bar to impart translational movement to the tie bar. The cam has a dwell portion which enables the moving part to move beyond the position at which the hook of the tie bar is fully withdrawn. This helps compensate for ay irregularities or differences in the locking of the various hooks. That is, the dwell of the cam takes up any slack. Once the locking operation is accomplished, the dwell of the cam also relieves stresses in the apparatus for synchronously operating the multiple locking bolts.
REFERENCES:
patent: 359274 (1887-03-01), Mix
patent: 3194595 (1965-07-01), Wheeler et al.
patent: 3374972 (1968-03-01), Webb
patent: 3409320 (1968-11-01), Eckerle
patent: 3494641 (1970-02-01), Caregnato
patent: 3541794 (1970-11-01), Johnston et al.
Legrand Paul J.
Naud Henry
Croyle Carlton R.
Ross Thomas I.
Societe Nationale d'Etude et de Construction de Moteurs d'Aviati
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