Patent GB-652117-A (GB)
Title: Improvements in or relating to apparatus for cleaning watches and watch parts
IPC: G04D3/08
Filed: 1948-05-06
Abstract: 652,117. Watches. PERSSON, J. A. May 6, 1948, No. 12535. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 8, 1948] [Class 139] An apparatus for cleaning watches and watch parts in which a rotatable perforated casing or the like, which is driven by an electric motor and is adapted to be raised and lowered, is arranged tot be automatically and consecutively lowered into a number of containers which contain cleansing liquids and are located on an intermittently rotated disc, is characterized by a vertically pivoted upwardly and downwardly movable link system comprising at least four pivots and co-operating with movement-transmission members adapted to rotate the disc carrying the containers to a certain extent during the upward movement of the link system- An electric motor 9, Fig. 1, carried by two parallel links 8 pivoted to the casing 1 rotates a perforated basket 11,in which are placed the watch parts to be cleaned. The basket 11 is controlled, as described later, to move up and down so that it consecutively enters into four cleansing containers 6 and finally into a drying container 7. The containers 6 and 7 are carried by a disc 5 supported on a rotatable spindle 3 which carries at its top a ratchet 37 which cooperates with a pawl fixed to a disc 39 connected by a rod 40 to a Y-shaped member 41, 42 connected to the upper link 8. The upper link 8 is also connected by a link 32 to one arm 31 of a pivoted bell-crank the other arm 30 of which carries a rod 28 which co-operates with a runner 24 movable along a screwed shaft 22 rotated through gearing 23, 21, universal joint 20, 19, a rod 18, universal joint 17, 16, gearing 15, 14 from the motor 9. The arrangement is such that when the motor 9 and the basket 11 are lifted to their highest positions the motor circuit is closed and the motor starts to rotate the basket 11 and the shaft 22. The motor falls by gravity against the action of a damping device 36. The disc 5 is raised through a linkage 44, 43 and the basket 11 enters the first container 6. The runner 24 which is prevented from rotating by a rod 26 moves from right to left, Figs. 1 and 2, and eventually, near its extreme left position, engages a pin 53 to effect a slight movement of the rod 26 to reverse through an angle lever 55 the position of a switch in the motor circuit to cause the motor 9 to reverse its direction of rotation and the runner 24 moves to the right. Near its extreme right position the runner 24 moves the rod 28 whereby the bell-crank 30, 31 is rocked clockwise so that the links 8 are lifted and the motor 9 is raised so that the basket 11 leaves the first container 6. The upward movement of the upper link 8 causes downward movement of the disc 5 and .through the member 41, 42 moves the rod 40 which causes the pawl fixed to the disc 39 to step-on the ratchet 37 and the disc 5 is rotated until the second container 6 is below the basket 11. The drying container 7 is above a heating element 66. A flanged sleeve 69 surrounds the basket 11 in its upper position. In the final position of the disc 5 a member 50 raises a link 48 to open the circuit to the motor 9.