Results for deviors translation from French to English

les deviors
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jblectronio controlling équipaient for driving syst me with electromagnetio co plings for industriel se¬ wing and/or overcasting mac ines the invention relates to an electronic equipment for the continuons control of the speed, with stopping. at fixed preeelected point» equipment which oan also perfora additional contrôle of the electromagnetio operational componentβ of the footle , of the cutting devicβ and of the -thread loosening devioe of a driving system with asynchronous mo or and eleβ— .. tromagnetio coupling, for industriel sewing and/or overcasting machines • bac ground of the invention as it is kno n, such electronic equipments for t e con¬ trol of the driving système with eleotromagnetie couplings for industriel sewing and/or overcasting machines involve any advantages including the speed adjustment, stopping at fixed point and contrôle for the additional opérations; they do net perfora however a con inuons speed adjαstuβnt, their dyna io para eters do not allow the intensive use of the machine and the number of components iβ inoreased.
the transducer shaft 34 is mounted on the support 40 by means of bearings 49, blocked by some safety washers 50, 51. according to the invention, the electronic control circuit allows the following operations to be performed by the driving system: continually variable speed, between the minimum speed called positioning speed and the maximum speed, with the stopping of the system and of the needle too, the transmission ratio between the two movements being 1:1 in a preset position "up" or "down", when the pedal is pushed "forward"; the lifting of the presser foot, when the pedal is moved "back" in an intermediary position; the scissor operation and the thread loosening when the pedal is fully back; at the same time, the mechanical construction of the machine head imposes some constraints; when the system operates at the selected speed it is impossible to lift the presser foot, whose normal position is "down"; so long as the pedal is held in the intermediate position "back", the presser foot is lifted; however when the scissor is driven the footlet drops, then it returns in the position "up"; if the driving system, hence the sewing machine is inactivated in the position "down", at the thread cutting control.