JAEGER PRODUCTS FOR 1928.

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JAEGER PRODUCTS FOR 1928. Ultra-Efficiency in Manufacturing Methods.

WE recently had the pleasure of making a rapid tour of inspection of the factory of Ed. Jaeger (London), Ltd., where the famous Jaeger speedometers are manufactured.

These instruments, and the revolution counters, clocks and other productions of a like nature, are well known to sports drivers and riders, and we thought a glance at the actual making of these instruments would be of interest.

We came away greatly impressed by the up-to-date methods and high efficiency displayed in all departments of the factory. From the store-room to the furnaceroom the working of an exact ” system” was obvious to the most casual eye.

It is obvious that in the making of instruments of such precision and accuracy as a speedometer requires, a great part of the work must be done by hand. But the Jaeger factory has probably created new standards in the accuracy of repetition machinery.

The assembly of the instruments is done by hand, but the stamping and cutting of frames and wheels is done by machinery which is among the finest in England. As an instance of the accuracy of these machines, certain parts are made by the thousand with a tolerance—variation either way–of two-hundredths of a millimetre ! Indeed in some cases, no tolerance at all is permissible.

Every part in the whole range of Jaeger products is made under their roof, including the cable drives of the speedometers.

The Jaeger speedometer is claimed to be the steadiest available, employing as it does an escapement movement. Thus the interior of the speedometer closely resembles that of a high grade watch, and the escapement results in the hands receiving an impulse every three-quarters of a second.

A striking proof of the extreme accuracy obtained by the use of wonderful repetition machinery was given us when we inspected a bank of speedometers driven off a common drive. The instruments were newly completed, and the greatest variation of any speedometer was but one or two miles per hour !

We were convinced from what we saw that the accuracy of Jaeger products is beyond reproach, whether speedometer revolution counter, tachometer or clock. Every care is taken to eliminate error and the result is Well known to thousands of spotting drivers and riders.

The address of the makers is Ed. Jaeger (London), Ltd., St. Leonards Road, Willesden Junction, N.W.10.

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