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SPEED AND CLEANLINESS FOR BRAZING JOBS

21st April 1939, Page 89
21st April 1939
Page 89
Page 89, 21st April 1939 — SPEED AND CLEANLINESS FOR BRAZING JOBS
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APETROL-ELECTRIC brazing hearth that will save costs in the repair shop by eliminating starting delays, will maintain a steady flame for long periods and will produce notably clean work, has been designed by Mr. Maurice Edwards, Boro Garage, Man

chester Road, Bolton. In outward appearance, the finished article is a steel cabinet with the hearth on top and a nozzle on a flexible hose coming from the side. Under the panelling is mounted a petrol tank (with a capacity of one gallon upwards) and a fractional horsepower electric motor.

Turning on the fuel permits it to feed by gravity to a float chamber and so to the dual heater-box which consists of two cast-aluminium finned boxes with a heating element between. The motor operates a blower from which a suction pipe runs to the heater and draws the air into the box, first passing through one side and, after thus being warmed-, to the mixing chamber and out through the second heating section

to the blower which atomizes it.' The mixture is then forced through a line from the blower and so carried forward to the nozzle. An adjustable jet has been provided so that it can be regulated_as required and an air control will enrich or weaken the mixture. giving the requisite variation in the flame. When being used at moderate power, it is. stated, the device will run for approximately two hours: on one gallon of petrol. A transportable model is also being made.