Thursday, July 15, 2010
In an earlier Blog I discussed Smiths tachometer drive gearboxes.
This blog discusses the small 90 degree instrument drive gearboxes that were fitted to the Smiths chronometric speedometer and tachometer. As well the later BG2410 series drives that were a thumb screw attachment to Smiths speedometers to get a more suitable cable run in Rover 2000 and 3500 P6 cars and Jaguar XJ6 cars in the period mid 1960-end 1970.
Left click on any image to enlarge it....
The first pic is one that perplexes me....
You'll note it is a 250MPH speedometer in 80mm dia. format...wow!
I obtained this with the stock of the ex Smiths Competition Shop, Oxgate Lane, London, that I bought in the 1980's from the last manager, the late Jack Owens.
I never questioned him over it's use regrettably....so now I figure it could be off a Le Mans endurance racer, note the black bezel rim to cut reflection rather than the usual chrome version. To this day we can't identify it....
H'mm....
You'll notice that it has the small angle drive, attached by a keyplate to the case.
So the other drive, mentioned above is a clamp on type Smiths drive..illustrated below.
