ORKSHOP AND GARAGE TIPS.
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Usef 1 Contributions from
Our Driver and Mechanic 'Readers.
Converting fr m Solid to Pneunriati Tyres.
ring troubles whatci with taper-roller els, although these tances with one or s flat or soft. On ever an inner tyre on a twin-tyred vehiele goes soft, if the wheel has phosphor-bronze floating bushes the hub heats immediately and if not noticed at once serious damage results to the bush and in some cases to the axle journal as well. A READER, "H.B.," of West Lothian, has wr tten to us as follows :" Having rea in a recent issue of The Commercia ii.l otor an article on the conversion of motor vehicles from bolid tyres to pneumatics, I thought the experience which I have had with a large number of various makes of vehicle might be of interest and save expense to owners who may b contemplating a change. " I have had no be ever with buses fitt bearings on rear wh have been run long di other of the twin tyr the other hand, who ring troubles whatci with taper-roller els, although these tances with one or s flat or soft. On ever an inner tyre on a twin-tyred vehiele goes soft, if the wheel has phosphor-bronze floating bushes the hub heats immediately and if not noticed at once serious damage results to the bush and in some cases to the axle journal as well.
"What appears to happen is that the load is taken on the outer end only of the bush, and the bush is ground. away in a very short time. The remedy would be to fit single tyres or convert to taper-roller-bearing hubs when making the change."
An. Eye Protector.
WHEN carrying out drilling opera
tions beneath a vehicle, difficulty is often experienced in protecting the eyes from the small pieces which drop on to tin worker as the bits cot into the material. We know, from personal experience, that sheuld one of these particles enter the eye the result is both dangerous and Painful, to say the least-of it. Should these particles be of metal the risk of permanent injury to the eye is particalarly great.
In a letter from "R.B.," of Woking, is described an ingenious method of overcoming this difficulty,
As is clearly shown in the accompanying illustration, our correspondent has made a neat funnel of thin sheet tin and has clamped it to the shaft of a brace by means of a small retainingstrip of brass and a suitable bolt and nut. This fitting, receives all the drillings as they fall from the bit, thus effectively preventing them from dropping on to the worker's face.
It may be thought by some that the funnel would prevent the operator from seeing the effects of the drilling as it progresses, but "R.B.• assures us that he has found no difficulty in carrying out satisfactory work with a brace equipped in this manner.
A Driver's Criticism of New Models . at , Olympia.
MANUFACTURERS would do well to consider the convenience of those who have to spend long hours in the cabs of their vehicles, so perhaps the letter of" TX.," of Loudon, S.W., who appears to be a practical driver, may be of interest.
Our correspondent cal1s. attention to the fact that much has been written regarding the great advance that has been recently made in the design of corn
mercial motors, but in his opinion there are one or two points in which a distinctly backward movement has taken place. After inspecting the vehicles at the Show, he thinks that much has been done in the way of improvement in finish, upholstery, windscreens., etc. but that he found that a number of the vehicles was fitted with central gear levers, which he does not think will be appreciated by those who have to drive. The position of the hand-brake lever is another point on which he has some remarks to make, as in one make this was a mere stump, and when he sat in the cab he had to bend nearly double to reach it.
Again, he finds fault with the positions adopted for the magneto and the carburetter on several of the models shown, as in the small chassis of one famous make the carburetter is Close to and well below the bonnet boafd. ITo suggests that this position might be productive of much profanity on a wet night when a driver has carburetter trouble. Many of the magnetos, he considers, are much too far back. Such points may seem trivial to those who do not have to drive, but to the ownerdriver they are important.
• Some Welding Tips.
THE welding of broken parts of motor
lorries has proved itself to be a great saving both of time and money, but unless the welding be done with great Care and judgment it is often best left out of the job, as in so many cases the work carried out fails under the stress of usage, and a vehicle may be stranded miles away for hours, only for the want of some attention to details in welding. In this connection "11.5.," of Accrington, gives two instances of how welding may be useful. One of the two illustrated is a channel that has shown signs of cracking, and is reinforced by means of a plate of steel welded to it at intervals. This he says will prevent a crack from spreading any farther. The other is a wing iron which has broken and been welded. Here he points out that if the metal 13as proved itself not strong enough in the first place It is hopeless to expect it to stand up to its work unless the metal be made thicker by building up the weld as shown.
[Will " J.K.," of Barnsley and " II.J.P,," of Reading, kindly send their full Dames and SthireSSeS?—ED.}