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Helper Springs for Special Work

3rd May 1932, Page 121
3rd May 1932
Page 121
Page 121, 3rd May 1932 — Helper Springs for Special Work
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A CONSIDERABLE range of helper springs for all 21 popular lightweight vehicles is now being offered by R. M. Papelian, Ltd., of Trim House, Edgware Road, London, N.W.2. The company specializes in helper springs for Ford and other chassis, and these are available for both front and rear axles. A feature which the company has developed to a considerable extent in connection with its auxiliary spring outfits is the avoidance of hole drilling in frame longitudinals, etc., the object being to preserve the strength of such components.

One of the R.M.P. range is a quarter-elliptic type of helper spring sold for the Ford 10-cwt. chassis. A pair of these springs is required, each being attached to the frame longitudinal in front of the driving axle. For the front axle of Ford chassis, which have the familiar transverse springs, an R.M.P. auxiliary transverse semi-elliptic spring is supplied which is bolted beneath the main spring, its ends engaging with rubber cushions in saddles attached to the axle. The existing U-bolts are, in this case, employed and no drilling is necessary.

For the rear axle of the Ford goods-carrying chassis two

types of semi-elliptic helper springs are available. In one case a two-bolt axle mounting is provided and in the case of the heavy-duty model a four-bolt mounting is adopted. The front and rear ends of the helper springs engage with chairs fixed to the frame members when an extra load is imposed.

Additionally, the company offers R.M.P. semi-elliptic auxiliary springs for the Bedford and Chevrolet chassis ; these are bolted to the rear-axle assembly above the main springs, and their ends, which when travelling light are free, engage under load against angle plates fixed to the frame members.

These springs can be mounted without drilling and without even removing the bodywork, and it will be appreciated that they do not affect the riding qualities of the chassis when loads of normal weight are being carried over good roads.

The prices of front helper springs for the Ford chassis are £2 2s. the set, whilst the various rear-axle arrangements cost between i0 and Er 10s. In every case the main leaves of these auxiliary springs are double.

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