GB254258A - Improvements in or relating to coupling devices for the starting motor-dynamos of motor cars - Google Patents

Abstract

254,258. Soc. Anon. pour l'Equipement Electrique des Vehicules. June 24, 1925, [Convention date]. Addition to 237,541 and 239,809. Turning-gear.-In a driving-gear for a dynamo serving also an engine starter, in which a planet pinion 9 moves axially on a screwed sleeve 6 mounted loosely on a spindle 7 to bring the pinion automatically at starting into gear with a fixed toothed ring 10 and afterwards into engagement with a part 35 of the plane carrier 21, the pinion and the part 35 engage by means of friction-clutch members 56, 40 in order to prevent shock. As shown, the clutch members are of the coned type, the member 56 being an extension of the pinion and having channels 59 for the escape of lubricating oil. Alternatively, single or multiple plate clutches may be employed. In order to facilitate the axial movement of the pinion 9, the extension 56 of the pinion is engaged by a pair of spring- pressed levers pivoted on the member 35, the pivots being above the centres of gravity of the levers in order that the pressure of the levers may be increased by centrifugal action. For starting by hand, the shaft 1, in sliding engagement with the hollow armature shaft 30 and having clutch dogs 19 for engagement with dogs 18 on the engine shaft, is movable axially against a spring 20 between a sleeve 60 on the shaft 1 and a recess 61 in the shaft 30. Specification 239,809 is referred to.