Cooling System Tester A DUAL-PURPOSE unit for the test
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ing of all types of radiator pressure cap. and also complete cooling systems for leaks, has been introduced by A.C.Delco, Ltd., Division of General Motors, Ltd, Dunstable, Beds.
The pressure cap and cooling system tester (part number RCT-1) is sold as a kit, with adaptors to suit all types of radiator cap and filler neck. Also supplied in the kit is a protective mitten and a wall or bench rack in which the adaptors and tester can be kept.
Net trade price of the equipment is £4 10s.
Equipment Catalogue THE latest edition of the Motor Car Equipment Catalogue (which caters also for certain commercial vehicles) now available from Trico-Folberth, Ltd., Great West Road. Brcntford, Middlesex, includes details of three products recently introduced.
These are the Roto-Matic and VacoMatic windscreen washers and a product called Screen-Glo. Retail prices of the washers are it 7s. 6d. and 12 16s. 6d. respectively. •
Screen-Glo is a preparation for removing smear from windscreens. It is-sold in a special container for direct application and the retail price is 4s. 3d.
Portable Hardness Tester RECENTLY ntroduced into G re .1 t Britain by Industrial Initrument Services Co., Elkington Street, Aston. Birmingham, 6, isthe Barber-Colman Impressor, portable hardness tester, designed for use on such materials as aluminium, copper, brass and plastics.
In use, the instrument is placed against the part to be tested and a light pressure applied to drive the spring-loaded indenter into the material. The hardness reading is indicated instantly on a graduated dial.
Three models are available: Model 934 for aluminium and its alloys, brass, copper and some of the harder plastics, costs £45 is.; Model 935 for the softer plastics and very soft metals, costs £49 12s. Id. and Model 936 for extremely soft materials, such as lead and leather. costs £68 5s.
Silicone Compound rAA LEAFLET published by Midland Silicones, Ltd. (68 Knightsbridge. London, S.W.I), describes properties and application of their MS4 silicone compound. which is non-melting and retains a grease-like consistency from —50 C. to 2000 C. In addition, MS4 is highly water-repellent and resists oxidation.
Its principal uses in transport are on ignition systems, to prevent condensation problems, as a lubricant on electrical contacts and sockets against the ingress of moisture, as a preservative to reduce hardening and cracking of natural and synthetic rubber and plastics, and as a preventive to corrosion on battery terminals, leads and sparking plugs.
Dual-purpose Equipment RECENTLY introduced and Marketed IN. by Tube Plastics, Ltd., Newtown Street Works. Cradley Heath, Staffs. is a combined sack truck and step ladder. The dual-purpose unit is made of tubulai steel and is converted from a sack truck to a sten ladder by pushing the handles forward and swinging forward the support leg. Cost, 18 10s. in 5-cwt. form.