| 摘要 |
<p>1508387 Low tyre pressure indication SCOVILL MFG GO 1 April 1976 [9 June 1975] 13322/76 Heading B7C Pressure gas within sealed bellows 66 expands the latter when tyre inflation pressure drops below a predetermined value to position magnet 50 against end of housing 44 mounted on a vehicle wheel hub H, the magnet when thus positioned, on each revolution of the wheel, actuates a switch 80 which in turn actuates an indicator means within the vehicle. The housing 44 has a screw threaded portion 14 which receives a wheel securing unit 16.</p> |
