Handy man's workshop and laboratory . a few moments in dilute sulphuric acid. This is best donein a copper vessel.—37 A HEATER FOR SOLDERING IRONS The accompanying illustration shows a very simple heater forsoldering irons, which can be made either stationary or is to say, it can be attached to the gas pipe in the shop, orit may be provided with an attachment for a rubber hose, so itcan be moved about in different places. n6 HANDY MAN S WORKSHOP AND LABORATORY The heater is mounted on a suitable base and made up ofordinary pipe fittings. A tee is attached at the lower part thereo
Handy man's workshop and laboratory . a few moments in dilute sulphuric acid. This is best donein a copper vessel.—37 A HEATER FOR SOLDERING IRONS The accompanying illustration shows a very simple heater forsoldering irons, which can be made either stationary or is to say, it can be attached to the gas pipe in the shop, orit may be provided with an attachment for a rubber hose, so itcan be moved about in different places. n6 HANDY MAN S WORKSHOP AND LABORATORY The heater is mounted on a suitable base and made up ofordinary pipe fittings. A tee is attached at the lower part thereof,where the connection for the rubber hose is made. To the upperend of the standard a tee is fitted, to one side of which theheater is connected, and to the other an ordinary Bunsen either side of the tee is secured a small stopcock for regu-lating the supply of gas. These stopcocks have at their outerends a small opening about 1/16 inch diameter, which will ofcourse vary, according to the local gas pressure. Into one of. Fig. 134—Gas heater for soldering irons these stopcocks is screwed a nipple perforated with one or morerows of ^-inch holes. At the base are two or more larger holescovered with a sliding sleeve for regulation of the air. By mov-ing this sleeve more or less air may be admitted, until a blueflame is obtained. At the outer end of the nipple is screwed anordinary cap. The Bunsen burner at the opposite side may bemade of ordinary gas pipe, with holes and sleeve for the regula-tion of the air supply. The stand or rest consists of a suitable base, into which isfastened an ordinary gas pipe with a set-screw at its upper this pipe slides another, somewhat smaller, to which isscrewed an ordinary cap. To this cap is secured a flat piece of HANDY MAN S WORKSHOP AND LABORATORY \\J iron, bent in a half circle, the ends being matched to provide arest for the soldering iron. It will now be seen that by raisingand lowering this inside tube, it can be he
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