Reducing Risks in Reversing
Page 49
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nPERATORS of vehicles with bodywork susceptible `..-" to damage when reversing up to 'a loading bank may minimize this risk by the fitting of Huma warning devices sold by the Pool Clock Co., 30 City Road, London, E.C.I. Two' conical rubber .buffers are mounted at the rear ofa vehicle. Each incorporates a piessure switch so that when a bufferis Compressed against an obstacle a buzzer in the cab is Caused to sound. •
The buffers cost £3 10s. each and the buzzer £1 5s., ayern
although the system m altatively be wired to
incorporate the vehicle's horn. A master switch for the circuit costs 5s. The buffers are robustly made to withstand repeated knocks.
American-type Rings THE Spirolox retaining ring is now being made by Weilworthy, Ltd., Lymington, Hants, by agreement with tbe Ramsey Corporation of America. It consists of a spiral of spring steel with rounded edges to prevent fretting of grooves, and the space between the two ends is crimped so that it lies flat. When designed to spring outwards into a housing, the outside diameter of the ring exceeds the closed diameter by a calculated amount, and for an inspringing ring the free bore diameter is smaller than the shaft groove. Notches are provided at each end for removal, and for ordinary assembly no tool is needed: furthermore, only a screwdriver is required for removal. • The absence of lugs on the Spirolox might often avoid the need for special machining, and the full concentricity of the ring ensures perfect dynamic balance when used on rotating shafts. The normal range of sizes is from 1-10in. diameter. Rings can be made extra thick when they have to accommodate side thrusts. Price is competitive.
Paste into Metal A PPL1CATIONS of Metolux, a n preparatio consisting of a thermosetting plastics and a. separate powder which combine to form a mouldable paste that hardens into a substance pos sessing qualities akin to solid metal, include repairs to bodywork and the protection of metal against corrosion. The distributors, M.G. Plastics Sales, 9 South Molton Street, London, W.1, claim that Metolux is economical in use, I lb. being equivalent to 10 lb. of lead solder. It can further be employed for repairing cracks in castings, and ma' he drilled and tapped when hard.
The industrial pack, containing 131 lb. of metal compound and liquid, sufficient for 300 cu. in. of filling, costs £9 10s. No Oil Mist ANimproved version of their mistless oil-spray gun has been introduced by the Key-Leather Co,, Ltd., 5 Urswick Road, London, E.9. It may be supplied with a 11-pt. reservoir. An adjustable valve at the air intake automatically regulates air pressure up to 150 p.s.i. for normal work,
no but may be removed if ss
greater pressure is required. Oil mist is eliminated by air jets around the oil jet. Price of the unit with model for direct reservoir is £6 10s. The use with bulk feed is £5 10s, TristThermoid Facings ASBESTOS friction materials may now be made by Hubert H. P. Trist and Co.. Ltd., Bristol. to the processes and formulze of the Thermoid Co., Trenton, New Jersey. This follows negotiations initially conducted so that Trisf could meet the requirements of the Caterpillar Tractor Co., Ltd., when they begin pro
w w
duction this year at their big new works near Glasgow. Trist have for some years supplied clutch facings and segments to the Leicester Caterpillar factory.
Hydraulic Power Grab A HYDRAULIC power grab which L—k may be used to load and unload materials such as coal and gravel over the side of a hopper exceeding 10 ft. in height, and for digging holes for telegraph poles to a depth of 9 ft., has been introduced by Whitlock Bros., Ltd., Great Yeldhain, Essex. Intended to be used in conjunction with the Dinkunn Digger Major trench excavator, the grab may also be employed for mass excavation to a depth of 16 ft., and for ditch cleaning. The equipment has a high slewing rate through a 190-degree arc, and can be attached to any standard Dirikurn Digger Major in a few minutes. Its capacity is t, cu. yd.
Easier Mixing A POLYESTER filler is being made In. under the name of Kwikfill by the Kenilworth Manufacturing Co., Ltd:, and marketed by Vulcan Products, Ltd., 37 Queen's Square, London, W.C.I. The ingredients are two smooth pastes, one blue and the other yellow. They may be mixed together in any proportions (obviating need for accurate measuring), but the resultant shade of green is an indication of the drying time required. A medium-green shade demands 30 min. drying time.and a light .green, only. 15 min: The filler dries hard, has good adhesion, and can be painted as metal. The trade price for a 16-1b. Pack is £6 4s.
Tissue Cleaners QOLD in cartons of 100 at 2s. 9d., 1.-) Kleenex Tissues-for-Men are stated to have numerous uses for drivers as they can be used expendably for cleaning instead of rags. The tissues will absorb water or oil, but not become soggy. Hi-Dri paper towels, a companion product, may be used in industrial washrooms, dispensed from cabinets which are free on loan.