. Blakelee's industrial cyclopedia, a simple practical guide ... A ready reference and reservoir of useful information. More than two hundred illustrations. that they fit closely ; moist-ening them with soldering fluid; placing a piece of smooth tin-foil betweenthem ; tying them together with binding wire, and heating the whole in a lampor fire till the tin-foil melts. I have often joined pieces of brass in this way so that the joints were quiteinvisible. Hard Solder.—This substance is made by melting together two parts ofcopper to one of tin. Oold Solder.—For fine work a solder is made of twe
. Blakelee's industrial cyclopedia, a simple practical guide ... A ready reference and reservoir of useful information. More than two hundred illustrations. that they fit closely ; moist-ening them with soldering fluid; placing a piece of smooth tin-foil betweenthem ; tying them together with binding wire, and heating the whole in a lampor fire till the tin-foil melts. I have often joined pieces of brass in this way so that the joints were quiteinvisible. Hard Solder.—This substance is made by melting together two parts ofcopper to one of tin. Oold Solder.—For fine work a solder is made of twenty-four parts gold,two parts of silver and one part of copper. Silver Solder.—To make a hard solder use four parts of silver to one ofcopper. To jnake a soft solder, use two parts of silver to one of brass wire, [92 HOW TO TIE KNOTS. HOW TO TIE KNOTS. The Weavers Knot.—A very effectual kaot for fastening the ends ofstrings together, so that they will not slip, is shown in the illustration. It istied by crossing the ends of the strings between the balls of the left handthumb and finger, the one running down to the right, below the other. Now. THE WEAVER S KNOT. carry right hand string in a circle around the joint of the thumb, beneath itsown end, and back between the crossed string ends. Now bend the left stringend down through the loop, catch it under the thumb, holding firmly, and drawthe right hand string till a hard knot is made. To Tie a Safety Knot.—To make a safety knot as represented in cut,take the fixed or standing part of the rope in the left hand, lay the free end overit, and then by a twist of the wrist make a loop in the standing part which shall
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