Mobile Lifting Table
Page 45
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AN hydraulic lifting table designed for use as a lorry loader and intended to be carried on special brackets mounted under a vehicle body has been introduced by Access Equipment, Ltd„ Hemel Hempstead, Herts. The unit is an addition to the range of Bicep lifters made by the concern and has a capacity of one ton.
When installed for travelling the table is securely held to the vehicle chassis by quick-release clamps which, with special leaf springs, arc claimed to eliminate any tendency for it to shift, even when travelling over the roughest ground. The clamping framework can be fitted to most vehicles of one-ton capacity and upwards and, apart from the repositioning of the spare wheel on some types. no modification of the vehicle chassis is required. On most lorries a convenient position is under the chassis at the rear.
The equipment can be removed from its mounting very quickly by releasing the base frame clamps, turning the hydraulic control, then lowering the base frame to the ground, and finally by releasing the securing clamps.on the top platform and letting this 'down. The Bleep is then rolled from under the lorry and manceuvred into position for loading or unloading Operations.
One of the many safety features of the new model is that it can 'only be moved
Rubbing-down Tool
. A NEW tyPe of hand ,sanding tool has 4714 been introduced by -Super Tools, 67 Victoria Road. Scarborough, Yorks. It is named the Owik Sander and the retail price is 10s. 6d. It is of robust construction and has a large abrasive surface.
The tool is made of sheet steel and the base, which measUres about 7 in. by 31 in., has glued underneath it a thin piece of foam rubber to support the abrasive paper. A strip of sanding paper 9 in. long is bent round the ends of the base and held in place by clamps—one in front and one behind the hand piece. while the table is in the fully lowered position. When it is raised, even slightly, the base frame comes into contact with the ground.
To remount the unit under the lorry it is Positioned roughly under the clamps, the upper frame raised and clamped up and the lower frame raised and clamped.
The machine incorporates an automatic two-speed hand pump and double-acting ram unit. Special booster rams provide the powerful initial lift and also act as shock absorbers on descent.
The new Bicep loader has a platform size of 5 ft. 5 in, long by 2 ft. 8 in. wide, an overall length of 6 ft. and an overall width of ,2 ft. 8 in. The closed height Is 7 in. and the maximum extended height 4 ft. The unit weighs 600 lb. and the price, including delivery in the U.K., is £275. • The lorry clamps cost £25 and when these are installed at the works an additional £10 is charged.
Brake Test Code
PROCEDURES for testing the brakes of goods and passenger vehicles on level roads have been drawn up by the American Society of Automotive Engineers. The tests detailed include pre-burnishing. checks, burnishing, initial
effectiveness, . fade and recovery, operational (2,000 snubs at 10 ft. per sec. per sec. at one-mile intervals), second effectiveness, second fade and recovery, and final measurements. • Routines for fade-stability and water-recovery tests are dealt with also. Copies of the test code (No. • HS 70) are available from the Society of Automotive Engineers. 485 Lexington Avenue, New York, 17, N.Y., U.S.A., at $1.25 for members and $2.50 for non-members.
Transmission Systems
AN addition to the series of motor manuals published by Chapman and Hall, 37 Essex Street, London, W.C.2. is a fifth volume entitled " Modern Transmission Systems." Like the other four, it is written by Arthur W. Judge, and retails at 25s. By far the greater part of the book is concerned with car transmissions, and whilst it must be admitted that some of the designs dealt with are quite complicated, Mr. Judge's descriptions tend to be somewhat involved at times.
The book contains 432 pages, of which 165 deal 'with American automatic gearboxes, together with a further 60 pages on European designs such as the Hobbs, M.I.R.A., Self-Changing Gears and Smiths. Also dealt with are manual gearboxes, free wheels and overdrives (including one paragraph referring to Eaton two-speed axles), epicyclic-gear principles, automatic clutches, hydraulic couplings, torque converters and semiautomatic gearboxes. The coverage is broad, and the volume will undoubtedly be of value to students of automobile engineering, particularly as it deals far more fully. with transmissions than the 100 or so pages devoted to the subject in Volume 3—" The Mechanism of the Car."
Ball Race Extractor
A BALL race extractor kit specially rA.designed for the removal of races which are situated in blind housings, and where a running shaft may also be encountered, is now available from J. W. Pickavant and Co., Ltd., BowStreet, Birmingham, 1. '
It is called the LKV/52 and covers a range of ball races from II in. to 5 in. in diameter. The complete kit is supplied in a fitted steel carrying case and costs £36 7s. 6d. net trade.
Three-stage Filters
RECENT research on engine.air intake requirements has resulted in the production of a new kind Of air filter, the Driclone, which is obtainable from Locker Industries (Sales), Ltd., Warrington, Lanes; and can be fitted to any diesel engine or compressor.
The Driclone filter is said to give complete protection from airborne contaminants, by using three stages of filtration. The first is a cyclone-type which rejects all the heavy particles. The second and third stages involve graduated dry pleated elements which remove particles as small as 10 microns and two microns respectively.
Efficiency over the full range of engine speeds is claimed for the filter which will operate for 5,000 hours before replacement elements are required. Its simple design makes cleaning easy—the second and third stage elements can be removed and washed in cold water and a mild detergent may be used where dirt concentration is heavy or greasy. Sealing is simplified by using plastic end caps on the elements so that separate joint rings are not required.