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Gwyer" Limelight Jet.
Gwyer
Best Jet for Bioscope projections.
We claim for the "Gwyer" Jet the following advantages: —
1. — A light of great brilliancy and whiteness, of move than 2,000 candle-power, a light not hitherto produced by any other jet.
2. — Greater steadiness and ease of manipulation.
3. — Perfect silence of combustion at the highest power.
4. — Extreme economy. The " Gwyer '' Jet will work satisfactorily with an oxygen consumption, varying from 2 cubic feet per hour to 10 cubic feet.
Approximately giving a light of 2,000 candle power. This Jet is designed for Cinematograph Lanterns, and for use with condensers of short focus. The standard pattern is provided with cut-off tap and screw adjustment valves. The body of the Jet is made in two pieces only, so that the risk of leakage is reduced to a. minimum.
The screw valves are now cast in one piece with the back portion of the Jet, so that there is no risk of the valves becoming unscrewed. No solder is necessary, so that should the jet become hot, it will not part.
A cut-off tap is provided, which reduces the gases in succession, leaving only a small hydrogen byepass flame.
This is a great convenience if the light is not required during an interval in a lecture.
As the position of the valve screws is not altered, the light can be at once obtained without adjusting the mixture.
This Jet is sent out fitted with a j"gin. bore nipple.
A lime ljin. diameter is the best size to use to obtain a powerful light.
All the "Gwyer " Jets are now sent out with the improved clips and trays. These trays can be easily cut to fit any lantern. The advantage of our tray is the reduction of vibration through its greater stability.
PRICE — " Gwyer " No. 2 Jet (without tray) £2 10s. Od.
' G wyer " Jet with Mechanical Trav.
Mechanical Jet Trt
'I he pillar to which the the thumbscrews This Ti mechanical adjustments of
l|. or jet alters grt light are
clamped has both vertical and horizontal movement by means of : advantages over the older style, and with its aid the necessary tin ted quietly, accurately, and with the minimum of trouble.
A ... ORDINARY TRAY with heavy pillar (fit any Lantern) PRICE 2s.
B MECHANICAL TRAY (fit any Lantern) ... „ 18s.
C ••■ n » for U.-E. Optical System £1 Js.Od.