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lectronic Balancer
Page 69
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:SHAFT balancers employing electronic vibration tors are beillg sold in this country by Repco, Ltd., -louse. St. James's Street, London, &WA. When a is set up, the crankshaft bearing supports arc I by light rods to magnetic pick-ups which convert movements into electric are amplified and fed into a ay tube which indicates by the source of vibration. A meter te magnitude, and thus the and location of metal to be from the countenveights are timed that tests may quickly be ven by untrained operators.
is said to be such that a dist of 0.000025 in. because of may be measured. Standard have motors variable in speed 400-4,000 r.p.m., whilst others e speeds of 650, 1,100 and 2,200 implicated machines for balancinly one plane are made for disc-like structures, such as
ates. These. utilize a stroborht to locate the heavy point.
Accessory
VER drill accessory which may sed to remove old paint from for shaping plastics and other us materials is the Surcut, by Simmonds Aerocessories. ornoway House, St. James's, S.W.1.
, 5-in, diameter perforated disc hardened and tempered steel teeth. There is a clearance hole mit of each tooth through which n pass to the back of the disc.
iplete kit costs 17s. 6d. This of a cutter disc (which may be at lls. 6d.) 'a back plate and an Another tool introduced by the company is the Surform round file; which costs 10s. complete, replacement blades being 4s. 3d. Its diameter is 1 in.
Storing Documents OPERATORS who accumulate masses of documents, such as drivers' log sheets, and are confronted with a storage problem will be interested in the SelfBind method marketed by Westwood Paper, Ltd., 185 Goswell Road, London,
E.C.1 Papers to be filed are placed in a clamp, which can squeeze a wad 3 in. thick down to 2 in. Sides of the folios in the clamp being flush, a piece of gauze is laid on and adhesive applied so that the wad is bound along one edge rather in the manner of a book.
Single sheets may be removed at any time and easily replaced. The kit of parts for the Self-Bind method costs £27 6s.
Gun Hook A BLOW GUN of novel design is
offered by Air Automation, 26 Sharrocks Street, Wolverhampton. As can be seen from the accompanying illustration, it is trigger-operated and has a hook at the top so that it can he hung up after use. Emission of air can be gradually controlled. A press-button type is also made,
Cutting Intricately
I NTRICATE cutting of sheet metal, timber and plastics may be performed by the Paccra Mark III jig saw, which has a 2-ft. 1-in, throat, made by W. J. Meddings, Ltd., 535 Ipswich Road, Slough Trading Estate, Bucks. Blade stroke is 11 in, and the capacity under foot 21 in. Blade tension is adjustable up to 10 lb. Files may be held securely for die work, and a circle-cutting attachment provides for the production of circular blanks. The table is adjustable to a 45-degree tilt. The drive has four speeds.
Demister Kits A RANGE of demister and accessory
packs for use with their heaters is being marketed by Smiths Motor Accessories, Ltd., London,, N.W.2. They are suitable for different makes of vehicle and for recirculatory and fresh-air heaters. The kits retail at 15s.
The company's heaters, including the R.301, suitable for the cabs of large vehicles, are unchanged from last winter The R.301 costs £12 10s.
Pulp Packaging THE Resil method of packaging, offered by the Pontefract Box Co., Ltd., Pontefract, Yorks, makes use of fibrous pulp. Packs of such material may be made for a wide variety of products to protect them in transit against shock, abrasion and extremes of heat. The material is comparatively light, so that a pack for a vehicle battery weighing 50 lb. would be 7 lb. 12 oz., and for a 30 lb. electric motor, 10 lb.
Quick-drying Enamels
NAANUFACTURED from cellulose enamel ingredients and synthetic resins, Viton quick-drying enamels are now being offered by Lewis Berger (Great Britain), Ltd., Berkeley Square, London, W.1. Intended for spray application to vehicles, the enamels are touch-dry in 10-12 minutes and ready for recoating in 30 minutes. They are available in more than 120 colours.
Marking Surfaces
THE Magic Marker is a product of Speedry Products, Ltd., 83 Copers Cope Road, Beckenham, Kent. It can be used to write on difficult surfaces such as metals, rubber, canvas and plastics. The large size costs 12s. (refills 6s. 6d.) and it is claimed that the marks it makes are unaffected by weather.