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The Optical Magic Lantern Journal and Photographic Enlarger.
We can Improve Your
FOLDING POCKET CAMERA
by fitting to it a lens which will take Snap-shots in dull lights
and give full exposures with sharp definition to the corners of the plate.
; Send a postcard for full particulars. Cooxr Fenses TAYLOR JAYLOR# HOBSON, Seer se issn ence toweo We Established 1886. YORK & SON, Che Earliest and Largest FREDERICK d, STEDMAN, Producers of Lantern Slides. Lrantern Slide Make | cataocue ov receirt oF BUSINESS cnRD,
and Goloutist, Indents can be sent through all Shipping Houses.
I], ROSE TERRACE, SURREY LANE, YORK & SON, BATTERSEA PARK, LONDON, S.W. 67, Lancaster Road, Notting Hill, London, W.
THE “INJECTOR” MIXED JET.
(JACKSON'S PATENT.)
46% PRICE 30s. x
This is the only Mixed Gas Jet which will work at full power with coal gas taken direct from the town supply, and oxygen from a cylinder. In order to effect this the oxygen, on its way to the mixing chamber, is made to pass through the small Injector 1 in the sketch at a pressure of about 12 Ibs. per square inch. In passing through the Injector it sucks a supply of coal gas from the pipe H, which is connected with the house pipe, and forces it forward through the short pipe T into the mixing chamber M. Here the mixed gases meet the baffle plate B, which has the two-fold effect of silencing the passage of the gases, and ensuring their complete admixture. The mixed gases then pass through holes in the edge of the plate, and so to the burner. The requisite pressure » of oxygen is obtained in the ordinary way by a fine tap on the cylinder, or an automatic regulator fitted 4 with a high-pressure spring to deliver at about 15 lbs. pressure.
R Five seasons’ experience has fully established the superiority of this Jet over all others. It will yield \Sy THE FULL 1,800 TO 2,000 CANDLE-POWER (so-called) of the ordinary mixed jet when taking its supply RSs of coal gas direct from the town’s pipe, or even froma bag without any pressure at all. If atown's supply is not available, it will work just as well with coal gas from a cylinder. We cannot see why ordinary mixed jets should be purchased which cannot offer these alternatives. As for blow-through jets, ejector or otherwise, we do not know why they should be used at all, when with the same economy and convenience of working, the Injector Jet will give two or three times the light. By removing the Injector nipple the jet becomes an ordinary mixed jet. This can be done whenever it is desired to work with oxygen at low pressure, and coal gas from a cylinder.
The working of the Jet is simpler than that ofan ordinary jet. When the H tap is once adjusted, it does not need to be touched again when using town’s gas. The turning off or on of the oxygen supply regulates automatically the supply of coal gas. This is a great convenience in actual use.
Most existing jets can be fitted with an Injector to enable them to take their coal gas supply from the house pipe
2
The Jet willin certain cases be sent on approval on deposit of purchase price. Further particulars free on application te
MANCHESTER OXYGEN (Brin’s Patent) CO., “LTbD., Great Marlborough Street, Manchester.
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