. The art of lead burning; a practical treatise explaining the apparatus and processes. ob-ably only a matter of habit, as they hold all righteither way. Now, after having the seams burned and thestraps in place, the lead must be put in can be accomplished by any arrangementof block and tackles, but if the chamber be verylarge it will be found to be a saving of time andlabor to rig up a derrick. This is not such an ex-pensive thing to do, as a carpenter is always onhand and most likely all the material needed isalready on the ground. This derrick should beconstructed with a swing
. The art of lead burning; a practical treatise explaining the apparatus and processes. ob-ably only a matter of habit, as they hold all righteither way. Now, after having the seams burned and thestraps in place, the lead must be put in can be accomplished by any arrangementof block and tackles, but if the chamber be verylarge it will be found to be a saving of time andlabor to rig up a derrick. This is not such an ex-pensive thing to do, as a carpenter is always onhand and most likely all the material needed isalready on the ground. This derrick should beconstructed with a swinging boom, so that it canbe raised, lowered or swung into any desiredposition. Now to raise the side lead into position: Thederrick is hooked onto the hook or rope that is THE ART OF LEAD BURNING. 115 on the upper end of the staging. It can then beeasily raised in position. If the tank be verydeep, or if it should be too narrow to follow thismethod, the sheet lead should be rolled up on apiece of 2, 3 or 4 inch iron pipe, depending uponthe weight of the lead. This pipe should be long. U*--^^ LP- m EM Fig. /^.—Showing Staging in Position. enough to project at least 6 inches from both endsof the roll. Two timbers, long enough to crossthe frame work, should be obtained. About 18inches from one end of each timber a notchshould be cut to prevent the pipe from timbers must now be placed across theframe work just over the place that is intendedfor the lead. The whole roll can now be raised Il6 THE ART OF LEAD BURNING, with the derrick and the ends of the pipe placedin the notches. The lead can then be pulleddown, similar to pulling down a window shade,after which the tacks can be burned on in is shown at a. Fig. 40. Or if there be roomenough the piece of lead can be cut from the roll,dressed smooth and have the tacks burned onwhile on the floor. The upper end of the leadcan then be rolled over and nailed to a piece oftimber 2x6 inches or heavier, and the derr
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