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Opinions from Others.

21st March 1912, Page 17
21st March 1912
Page 17
Page 17, 21st March 1912 — Opinions from Others.
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Which of the following most accurately describes the problem?

Keywords : Tires, Tire

Petrol-measuring Devices.

The Editor, THE COMMERCIAL MOTOR.

[15121 Sir, —I see in your interesting paper that a correspondent, who signs himself " Quart Measure," has been asking about measuring machines. We have aa automatic apparatus here which has been at work for some time with very satisfactory results. I Diagram °I Stewardson apparatus.

thought perhaps some of your readers might be interested in it. The machine is made by Messrs. .Stewardson and Co., Engineers, of Sheffield. T enclose a diagram of the arrangement. [Redrawn.—ED.1 The oil runs from the oil tank down a delivery pipe -to a four-way cock, and then to a measuring cylinder (A), driving the oil or gas in the cylinder through the .connecting pipe (0) into the other measuring cylinder (1-3). The oil rises in the cylinder (A) until it reaches the float (D), which it raises, and so shuts off all air and gas outlets, preventing any more oil front entering the cylinder. The cock is then revolved through a quarter turn, causing the oil to run into the cylinder (B) and driving the oil in the cylinder (A) into the can, cask, or other receptacle which is to receive it. The pressure of the oil in the tank not only fills the cylinders (A) and (B), but it also drives oil out of the cylinders. The floats (D) are fixed to the airpipe (C), and can he worked up and down through the .glands (E), so that the apparatus may be set to measure any quantity that is required. One double machine can be used for filling gallon, 1-gallon and 2gallon cans, etc. I shall be pleased to show the nutchine, by appointment, to anyone interested in it.— Y011es faithfully, S. W. COLE. Wenlock Brewery House, City Road, N.

The Difficulties of the Tire Guarantee.

The Editor, THE COMMERCIAL MOTOR.

[151:3] Sir,—I have read with interest the correspondence which has recently been taking place in your paper, under the above heading. I can quite understand the natural desire of tire manufacturers to dispense with guarantees when selling their goods ; it would no doubt he delightful for them to feel that the user !mist meet the case each time by philosophizing

Chat " To err is human, to forgive divine." Mr. " Tire Bill" (is this nom de plume the motoring equivalent of Weary Willie ?), however, appears to have summed up the result of dropping a tire 'guarantee very concisely and practically, as viewed from the user's standpoint. When it is considered that the whole essence of the purchase of a rubber tire lies in the amount of practical wear that can be obtained from it, the suggestion to remove the guarantee assumes a somewhat ridiculous aspect. The argument advanced by " Experienced " in your issue of the 20th ult. (1503), that a rubber tire is the only part of a vehicle with a guarantee on its wearing life, is hardly correct. It would be difficult to discover a reliable make of motor vehicle which is sold without a guarantee for a minimum wearing life on the whole machine over, generally, a period of six months. Why is this guarantee given ! Simply because the manufacturer has learnt by experience that the public will not expend large sums of money on his machines without sonic reasonable assurance that value will be given for money so spent. Tire manufacturers are perfectly well aware that they sell their tires to their customers on an assumed minimum mileage, which is generally fixed at 10,000 miles, and it is a little foolish to protest on the one hand that this minimum is more than assured to the user, and on the other hand to complain if the users invite the tire makers to back their assertions.

I am quite aware that tire manufacturers suffer a certain amount of unfair treatment at the hands of sonic .users by overloading and overdriving, hut these are risks which are equally the lot of the machine manufacturer. They are not numerous, and represent an ever-decreasing factor. The proper safeguard against it is to sell tires of ample capacity to perform the work for which they are sold.

notice that " Experienced" describes the artifice of new makers, who practise on the public, and, when they discover that their tires are defective, endeavour to wriggle out of their agreements. This is a further proof of the need of the agreement, so that the wriggling may bring pain to the worm. " Experienced" would, however, be content to let the new maker obtain his experience at the cost of the user, It is fashionable, nowadays, to expect 0d. for but tire users are seldom in a position to give it.

I notice that Mr. Wm. J. McCormack, in his letter of the 20th ult. (1504), speaks of two values to a tire, the guaranteed tire being of greater value than the unguaranteed tire. This gentleman suggests that tire manufacturers should offer to do business, without guarantee, at a reduced price. It would be interesting to know what proportion the reduction would represent of the whole price. This would be the value of the guarantee to both the manufacturer and user. My own experience, as a user, is that a guarantee is absolutely essential, in the interests of both users and makers. It acts as a most-effective brake upon the natural desire of both sides to try and squeeze a little more out of a bargain than they are justly en

titled to do.—Yours faithfully, " A USER."

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People: Wm
Locations: Sheffield

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