Checking Needle Lift
Page 41
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)ECONDITION1NG . of injector X nozzles shduld include a check of :edle lift to ensure that it remains within ie manufacturers' limits. A gauge proIced by Leslie Hartridge, Ltd., Buckgham, allows this to be done rapidly. The instrument consists of a gauge ving readings in 0.01 mm. from zero to mm. Three measuring anvils which irew into the gauge are included to cover le conventional C.A.V., Bosch, Simms. pica and other types of R, S, T, W and sizes.
A steel bush with a ground face is :ted into the stand to provide a true Ication surface to contact the nozzle ice. A setting disc enables a correct !ro to be obtained from the face of the eel bush. After setting to zero, the DZzle is offered up, complete with its :edle, on to the instrument so that the .ound face of the nozzle body contacts le similar face of the...steel bush. A sect reading of needle lift may then be ken from the gauge.
'hin Walls
NCORPORATING a flange of the same
thickness as the liner wall, a new Tie of Cromard cylinder liner produced 1 the Laystall Engineering Co., td., 53 Great Suffolk Street, ondon. S.E.1, should, the makers :lieve, be of particular interest to anufacturers of turbocharged igines.
Wall thickness may he as low as 04 in., which allows a much greater .crease in cylinder-bore size, compared ith the standard bore, than that pertitled by a conventional cast-iron liner. he improved ratio of cylinder-block wall iickness to liner thickness should facili.te fitting on the production line. A mri-over flange is a feature of the liner.
oad Characteristics
-40NTAINING a great amount of 'valuable information, "The Loads "ou Carry " (Iliffe and Sons. Ltd., 2s. 6d.) a valuable addition to road haulage ihliography. The handling of various asses of load is dealt with. ranging .om livestock to sand and ballast, and i respect of certain goods there are tables towing weights relative to space ccupied.
Typical extracts are as follows: " Not tore than three heavy draft horses must e carried abreast in any vehicle; When timber has been kiln-dried for nmediate use it is essential for the load ) be sheeted to prevent damage through 'et; " and; "As butter is easily tainted, ire should be taken to see that in mixed loads it is kept as •far as possible away from cheese, oranges, onions and apples."
The book will probably appeal strongly to newcomers to haulage as the facts it contains could otherwise be learned only through years of experience,
Automatic. Lock
A FEATURE of the new Certic fifthPA wheel coupling of Davies Magnet Works, Ltd., London Road, Ware, Herts, is a swivelling undercarriage equipped
with an automatic locking device. The standard locking system is retained and is used in combination with a retractable tongue fitted in the semi-trailer bolster plate. This is employed automatically to lock the fifth wheel longitudinalty in line with the trailer axis. At the same time it releases the automatic locking device of the undercarriage.
The coupling can be fitted to all types of semi-trailer having an S.A.E.-S.M.M.T. king pin; a semi-trailer equipped with a locking tongue can be employed in conjunction with a tractor having any type of standard fifth-wheel coupling. Also produced by the company, the new model 440 screw-type semi-trailer support gear is of lightweight construetion and is designed for an outrun of 12 in. It is suitable for gross loads,of up to 12 tons given that the weight of the semi-trailer is equally distributed between the coupling and axle. The use of hightensile materials has enabled the weight of the gear to be reduced to 198 lb.
Removing Spare Wheels
ASY removal of the spare wheel from its carrier has been allowed by Kennedy and Kempe, Ltd., Longparish, Andover. Hants, by providing a lifting gear operated by rotation of the wheel. This is carried on an arm-mounted spindle which also carries a drum., and revolving the wheel causes a wire rope on the drum to lift or lower the arm, the rope passing over a pulley at the top of the frame to an anchorage on the arm. Means are provided for securely locking the arm in the stowed position.
Lift Tongs IFT-TONG equipment for the AllisChalmers TL.20D Tracto-Loader is now available from Mackay Industrial Equipment, Ltd., Faggs Road, Feltham, Middx. Interchangeable with the standard bucket, the tongs can lift 12,200 lb. Combined clamping force at the centre of each set of tongs is 13,200 lb. Maximum stacking height is 11 ft. 2 in. Width between tines is 5 ft.
Thixotropic Gel
RUBBASEAL underbody corrosion preventive, made by the Dunlop Rubber Co., Ltd., is now thixotropic, being in the form of a gel which becomes liquid when stirred, and therefore cannot drip. It is non-inflammable and may be stored for un to a year. Brushes and spray equipment used to apply it can be cleaned with water.