Equipment for Increasing Efficiency
Page 43
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A QUICK-RELEASE HOSE CLIP.
The Griptite hose clip, made by the Jorjon Manufacturing Co., Lorne Gardens, Holland Park Avenue, Loudon, W.11, is now available in an improved form. It is shown in an accompanying illustration, and a feature is that, to release the clip, the screw can be loosened and prised up, turning upon its hinged fixing.. To retain the screw in mesh with the slots during tightening and when in position, the threads are slightly undercut.
The plain end of the band is bent inwards slightly, so as to dig into the hose and prevent rotation of the clip under the pressure of the screwdriver. Made in five sizes from in. to 3f ins. diameter, Griptite clips are sheradized to render them non-rusting, and the retail prices are from 7s. 6d. per dozen.
NEW HIGH-SPEED SPRAY GUN.
Described as model R.F. and costing from £4 to £4 as., a new paint spray gun, designed essentially for production purposes, has been introduced by B.E.N. Patents, Ltd., Gorst Road, Park Royal, London, N.W.10. An outstanding feature of the device is that a round or a fan-shaped spray can be obtained by rotating the spreader cap, whilst it is suitable for use with all the usual materials, including synthetic finishes and aeroplane dopes.
It incorporates no delicate parts, is easily cleaned, and has large air ports. Three types of nozzle assembly are available—for light paints, mediumbody finishes, and viscous materials— and provision is made for feeding the gun by gravity or pressure, FACILITATING OIL POURING.
Difficulties in replenishing the oil supply at night, or when the vehicle is in a badly lit garage, are overcome by a new type of measure and filler which is being marketed by the Acme Tin Stamping Co., Ltd., 164, Chelten ham Street, Manchester, 9. The • measure is of the usual shape, but on the top of the spout is a small fitting in which is situated an ordinary flash lamp bulb, this being connected to a small dry battery carried on the outside of the measure. A switch is provided so that when pouring oil the light fully illuminates the filling orifice. The device is available in half-pint, pint and quart sizes.
AN INEXPENSIVE PUMPING PLANT. •
The Hamworthy Engineering Co., Ltd., Poole, Dorset, informs us that it is now marketing a range of small air compressors and Hero electric water. pumps. The former alone, with petrol or electric power units, or mounted with air containers on wheeled trolleys, are of 3 cubic ft. per mm. and 6 cubic ft. per min, capacities, the prices ranging from £8 to £34.
The water pump delivers 100 g.p.h., against a 100-ft. head, is driven by a h.p. electric motor, and costs £12. Equipped with a pressure tank and automatic control, it is designated the Hero-Robot pump and costs £21 10s. EASY CARBURETTER TUNING.
A particularly interesting electrical instrument for indicating combustion efficiency by instant analysis of the exhaust gases is being marketed by Eben Products, Ltd., 57, Moorfields, Liverpool.
It is necessary merely to attach an inlet tube to the exhaust pipe of the engine, turn a dial; and glance at the indicator scale, where a rating of the efficiency of petrol combustion is immediately shown in terms of carburetter adjustment, i.e., lean, normal or rich, and the carburetter can then be adjusted accordingly. An advantage is that the quality of the mixture can be ascertained at any speed.
The principle on which the device functions depends on the effect of the heat conductivity of carbon-dioxide and other exhaust gases upon the resistance of an electrical conductor passing through the gas.
VALVE-SEAT GRINDER EMPLOYING NEW PRINCIPLE.
A recent addition to the range of servicing equipment marketed by E. P. Barrus, Ltd.. 35-37, Upper Thames Street, London, E.C.4, is the Van Norman Ro-To valve-seat grinder, which employs a novel principle that enables it to be used in conjunction with an ordinary electric hand drill.
The stone rotates against the valve seating, being located in the usual manner by a spindle in the valve guide. Pressure, however, is imparted to the stone by an unbalanced rotor, mounted on the spindle just above the stone. This enables lower speeds to be used, greatly increases the life of the stone, and produces an excellent finish, combined with accuracy.
The set includes, in addition to the usual equipment, a stone dresser, a clock-type valve-seat tester and expanding pilot spindles. The tool is available in a wide range of sizes and is sold at a competitive price.