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    • 6. 发明专利
    • Improvements in or relating to Indicating Devices for use with Pneumatic Tyres.
    • GB190622741A
    • 1907-10-15
    • GB190622741D
    • 1906-10-15
    • SLOPER THOMASSLOPER ROBERT
    • SLOPER THOMASSLOPER ROBERT
    • 22,741. Sloper, T., and Sloper, R. Oct. 15. Signals, automatic-alarm; signals, road-vehicle.- A puncture indicator, operated by the deflation of the tyre, consists of a plate B fixed on the felloe and carrying a spindle C on which a striker C is pivoted, the striker being released from its inoperative position by a lever D formed on a plate D, and moved into action by a torsion spring C , attached to a head C on the spindle and to the striker. A jaw in the plate D embraces a lug B on the plate B, a second lug B passing through a forked part in the plate D. A stop C on the striker is, in the inopera- ' tive position, held against the lug B by the downward pressure of the spring. On deflation of the tyre, the lever D moved out by contact therewith, lifts the striker, which turns under the action of the spring until a stop C on the striker hits against a lug B fixed on the plate D. In a modification, the movement of the striker is limited by a pin, Fig. 6, which enters the plate fixed on the felloe, for the inoperative position, and comes against the plate D for the outward movement. When the tyre is deflated, the striker hits against a striking piece F and gives an alarm. This piece is spring-mounted on a rod F fixed on the vehicle body or on the mudguard, the piece F being arranged to swing on the rod F to allow the striker to pass.