More Sensitive . I /. ' < • than the human ear! This Machine tests motor spirits for their anti-knock value - - It records even the silent knock W RiBOW Hemisphere. ' > xr \ yi THE Midgley Bouncing Pin knock-test- ; | ing set is recognised throughout the world by fuel engineers as the stan- fog dard equipment for determining the anti- \ knock value of a fuel. f . The set illustrated above forms part of ’ the extensive fuel-testing equipment in the : laboratory of the Vacuum Oil Company Pty. Ltd. By this scientific apparatus the .- remarkable anti-knock quality of Plume is regularly tested and confirmed. , 'A If motor spirit tested in this device has ITA'cL.J.. a tendency to knock, the bouncing pin will tn The diagram on the left shows detect it even although it be inaudible to P er^ect knock-proof combusthe human ear. Even the slightest dis- ti ? n whic + £ a^S lly , i ? r lONSsS— when appotemc Plume is used, ruption or increase in the burning rate or * .•>: * * * the fuel is indicated by a tell-tale sign on Appotenic Plume is pure, unithe instrument board. There is no indica- fol?n ’ c ? rsta i-°L ea s i Q Your eye ...... ." . can see how pure it is . « tion of even a silent knock with appotenic 1 iol " Let your car prove its power. Plume. The unequalled results achieved in nHnfejßßg scientific tests with appotenic Plume con- SH| I vincingly demonstrate the appotenic story. I I Get the benefit of the full power output of appotenic Plume, made available ’ through perfect knock-proof combustion. VAGUUM PT ? I t c o OMPANY Motor Spirit 9P20 . “ ■
Garden Tools A Of Best Quality are now to hand from the STERLING W » Ball-Bearing Lawn k Mower The a necessity where WK a good lawn is required . ' j s a mower that Stocked in sizes is exceptionally' 12, 14 and 16 smooth-running and complete and very easily with grass handled, boxes. I ACCESSORIES W H We have large stocks of Spades, all sizes - ;] fl fl Rakes (steel) 12 and 14 teeth; Trowels, I fl short and long handled. Swan Neck.Hoes* I fl all sizes; Dutch Hoes, Grass Shears, Hedge. fl 9 Shears, Lawn Edging Knives, Daisy. fl Bg Grubbers, Norcross Cultivators, Garden fl Hose in 7” and J” fl ’ Our Guarantee stands at the back of - fl these goods, Jk Ashby Bergh & Co. Udfl MAWHERA QUAY
K J. I. SMAIL 45 Mackay Street, GREYMOUTH. : Electrical & Radio Engineers,
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Greymouth Evening Star, 9 November 1929, Page 10
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397Page 10 Advertisements Column 2 Greymouth Evening Star, 9 November 1929, Page 10
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