Abstract: A programmer comprising a cam unit which can be rotated manually in a first direction by a control shaft 23 able to occupy, under the action of a pawl device comprising a spring, any one of several equidistant stable angular stop positions spaced apart by the angular value of one step, before passing on each occasion through a limiting unstable intermediate angular position, after which this shaft is brought in a resilient manner by the pawl device towards the following stable angular stop position. A motor and drive transmission system are able, when controlled, to rotate the cam unit step by step in said first direction. The cam unit is connected to rotate with the control shaft, with an angular clearance less than the angle through which the shaft travels, between any one of its stable angular stop positions and the limiting unstable intermediate angular position which follows.

Abstract: The present invention relates to a control device incorporating at least one electrical switch which can be actuated abruptly, for closing and opening, by a single rotary control cam.The control device incorporates a control cam 1 possessing a plurality of identical abrupt-drop notches 3 separated respectively by solid parts 4 identical to one another. A lever system is arranged between this cam 1 and the reversing switch 2. It comprises a first and a second lever 21 and 22 each of which pivots about a fixed axle 15 and the noses 31, 32 of which interact with the profile of the cam 1 under the action of a spring 8. A link 20 is articulated, on the one hand, at 21a on the first lever 21 and, on the other hand, at 22a on the second lever 22. It possesses a relief part 23 interacting with the reversing switch 22. When the nose 31 drops into a notch 3, with the nose 32 remaining on a solid part 4, the reversing switch is released, 6a-6b being closed and 6c-6d being open.

Abstract: The present invention relates to a programmer control device.This device comprises a rotary cam block 5 intended to be driven step by step by an advancing device comprising three advancing pawls 21, 22, 23 mounted on an oscillating support. The first pawl 21 can directly actuate step by step the first toothed ring 31 integral with the first part 1 of the cam block 5. The second pawl 22 interacts under the action of an elastic means with the smooth periphery 25 of a cylindrical extension 26 forming part of the second part 2 of the cam block 5. It likewise interacts, via orifices 30 passing completely through this extension 26, with a second toothed ring 32 integral with the first part 1. The third pawl 23 interacts under the action of an elastic means with a third toothed ring 33 integral with the inner periphery of a rate reduction collar 3 mounted rotatably inside the second part 2 of the cam block 5.