The Purchase Department.
Page 22
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Where to Buy your Supplies. .4
You Can Get It At " (Newcastle).—The steel wheels for which you inquire are made by Joseph Sankey and Sons, Ltd., Hadley, Salop.
A Positive Lock.-nut.
In the matter of lock-nuts the chassis builder is always ready to favour a means of fastening which will be .speedy in effect, which will satisfactorily hold various component parts safely in position, and which will not interfere in any way with ease of
adjustment. It is not always desirable, so far as adjustment is concerned, to utilize the split-pin method.
A lock-nut which is claimed to overcome these difficulties is the Vislok, marketed by Vislok, Ltd., 3, St. Bride's House, Salisbury Square, London, E.C. The device consists of two nuts which can. move relatively to each other, but which in practice form a reliable single lock-nut. In this invention the lock-nut has a continuous thread throughout, and when tightened up gives a regular and positive hold on the thread of the bolt.
There is a special circumferential locking arrangement that grips the whole of the bolt-thread in a
clasp which becomes more firm under the stress of working &conditions. The Vislok is guaranteed to give a perfect. and continuous locking result.
The Vislok is also manufactured as an axle-bearing lock-nut, and to this end is embodied with a. keyed or cone washer for securing the road wheels of the vehicle to the axle.. It comprises three sections, which, during the process of manufacture, are forced together by hydraulic pressure, and are guaranteed by the makers to be absolutely inseparable. The lock-nut can be readily adjusted at any time to take up wear on the washers or ball or roller bearings, and it can be regulated without removing the wheel from the axle or replacing the washers. When the lines (A and B), as will be seen from our illustration. pre in a strailzht line the lock-nut has a direct run of thread, but when A and 13 are out of the straight the )ock is effective and positive. The locking and unlocking of the nut can. be done with an ordinary spanner.
AGO For Cleaning Your Hands.
We have received from John Knight, Ltd., The Royal Primrose Soap Works, London, E., a sample of a new .dry wash which the concern is marketing, for cleaning the hands. Neither soap nor water is required, a little " Olof," as the cream is called, being all that is necessary to free the hands from dirt and marks of any kind. A tube of " Olof," which contains sufficient cream for 50 washings, and the sponge-cloth supplied with it is priced at is.
We have tested the sample submitted and find that it meets all the claims made by the makers with regard to the quick and effective removal of grease and dirt from the hands.
A New Electric Horn.
A very cheap and reliable electric horn for motor vehicles in general has recently been put on the market by the General Electric Co., Ltd. The sounding mechanism consists of a substantial steel diaphragm of large size which is set vibrating by blows from a stud carried by the armature of a laminated electro magnet of special design. The mechanism is similar in principle to that of the common trembler bell but embodies many novel points in design, while the construction is entirely different, being much more substantial. Special insulating material and best quality metal are used throughout. The weight of the complete motorcar horn is only
lb., if fitted with the standard 10 in. projection, or only 2 lb. if fitted with the short projector, which is only 51 ins. long. The finish is in black and nickel, or black only for fixing under the bonnet. The "Dean" horn, as it is named, ia watertight and dust-proof. The push switch supplied with it differs from the usual push in that it is not a small button or plunger, but the upper cap effects contact over almost its entire surface, which is 1-22 in. in diameter. A touch upon. any portion suffices to close the circuit and sound the horn, which emits a rich, deep and penetrating sound.
The pressure requiredto work the horn is from 5 to 10 volts, and may be obtained from dry batteries, which may be carried in special cases for attaching to suitable parts of the machine. A n important point is that the horn is guaranteed for five years. All the requisite parts are supplied by t h e General
Electric C o., Ltd., of 67, Queen Victoria Street, London, E.C.