Motor Speed Indicator.

Taranaki Daily News, Volume XLVI, Issue 98, 29 April 1904, Page 4

Motor Speed Indicator.

LXVEX 10US AUTOMATIC CHECK OX 'SCOHCIUNO.'

Ilerr Haiis Dahl, Hit- famous painter, who,lives in a fashionable submit" ot iicrlin, is the inventor <>i an ingenious automatic si>c«l indicator for motor-cars. His invention has been only recently perfected, an<l its manufacture on a large scale will soon be begun.

The indioatior consists of an apparatus attachable to any motor car in proximity ."to the wheels. A belt or chain transfers the motion of the' wheels; to the apparatus. within which are lixrd to a vertical axis a number of horizontal springs ol varying strength. The latter are set revolving- by the motion, of thwheels, which, as they reach a

certain degree of speed, cause a contact between one of the springs. and an electric wire connected with a disc, upon whicli the degree ofsp«',-(| isindicated aulowat'iealjy by Mining colours.

I/, for instance, you go at th.rate'of fil'k'cn miles an hour, a opening in the disc wii; nilcd bv a grcvn sluvt. If tlic speed \u-

creased to twenty-five miles, anotl - er sprin-g in the apHarnttis, a little stronger, makes the disc show blue. and soon. The-coloured sheets indicating the various degrees of speed are of transparent material, and when illuminated are visible at night