| 摘要 |
1,046,792. Linkwork. STANDARD TELEPHONES & CABLES Ltd. May 22, 1964 [May 24, 1963], No. 20842/63. Heading F2K. [Also in Division G4] A linkwork, Fig. 2, comprising a combination of toggles R1, R2, R3, each having a " swing " which is twice that of the preceding toggle, and suitably proportioned stiffnesses, is so arranged that when the bi-stable point 22 of the smallest toggle is displaced to the left (as shown) and when a damped oscillatory motion is superimposed upon the displacement, the toggles eventually come to rest in a stable condition of equilibrium in which the pattern of settings of the toggles represents (as precisely as is possible) the extent of the displacement imparted to the point 22. Each toggle, e.g. R2, comprises two pins 34, 35, fixed with respect to a plate 39, and against which two levers 25, 26 are caused to press by a spring 30. Two links 16, 17 connected to the ends of the levers 25, 26, determine a point 21 having two stable equilibrium positions, namely, either to the right (as shown) of the ends of the levers 25, 26, or to the left. As described toggles R2 and R3 are free to move bodily in the direction of their axis XY and the toggle R1 has its plate 38 fixed. |
