摘要:
The driving gear commutator switch incorporates a driving lever (1) with two tappets (10,13) located on either side thereof and at different distances with regard to the rotational axis (2). It also includes a conductor strap (6), which may be arranged in either of two opposite orientations, with regards to the fixed contacts (14). The strap is provided with at least one side projection and sidely arranged spaces or gaps allowing free passage of the tappets.
摘要:
The system incorporates advantages that comprise providing the positioning ratchet (23) with a shaft (25) about which an elevating lever (12) can swing which can take up an active and an inactive position such that when the cogs (10) on the block of program cams (15) elevate the ratchet (23), the elevating lever (12) takes up the active position and is thereupon returned to its inactive position when its free end (32) is moved by a rotatory boss (31) integral with the excentric cam (1), dragging with it in this latter movement the anti-return ratchet (15), causing the latter to draw away from the holding cogs (34) on the timer cam (6) at a time when the catch (4) on the driving pawl (3) is also drawn away from the same, allowing the timer cam to be reset.
摘要:
The system, having the usual blocks of fast cams and program cams (6), activated step by step by means of a pawl (3) which is provided with a steady to-and-fro motion by an eccentric cam (2), incorporates a swinging detent (9) that can take up two positions, one standing in the way of the free end (7) of the actuation pawl (3), and a likewise swinging clearance lever (13) with three working positions, the detent (9) being inactive in two positions and active in the third. This first part of the system is assisted by a selector lever, a timer lever and an anti-return ratchet, the said subsystem allowing the length of the timings deriving from the previous subsystem to be multiplied, thereby considerably enhancing the practical possibilities of the timer switch.
摘要:
The commutator-switch comprises a stiff conductor strap (5) having two or three contacts (4-4'-4") that face the same number of contacts (3-3'-3") provided in respective terminals (2-2'-2") with the peculiarity that the said swivel-mounted conductor strap (5) is driven with the assistance of an auxiliary lever (6) backed to the same and an open spiral spring (15) resting upon a support box (1) at one of its ends and on the auxiliary lever (6) upper branch (7) at the other end. The configuration of the different elements permit that both the conductor strap and the auxiliary lever, and the spring, be mounted in the support-box in two different positions, merely depending on the position of the common terminal in the box.