PREPARING OLD CANS FOR REFILLING
Formerly, after using a tin can once we threw it away; but men with brains, realizing this waste, have come to our rescue, and as a consequence we can now use a can three times—that is, if we have a sealer. The sealer that seals our cans will also open them for us, so it becomes our winter can opener. With this can opener we can use our tin cans three times, buying each year only new tops, which cost less than good rubbers.
Cutting and Reflanging Tin Cans. Cutting off the can the first time. First lift the spring pin in the top piece, push the lever from you, drop the spring pin between the stop of the first operation roll and the cutting-roll stop. Place the can in the sealer, push the can-raising lever against opposite side of frame. Turn the crank and gently push seaming-roll handle from you until you come against cutting-roll stop, and the top of your can is cut off.
Reflanging. Remove standard can base and in its place put in the reflanging base, lift the spring-pin and bring seaming-roll lever to the original position. Drop the spring pin between the stops of the first and second operation rollers, place the can in the sealer, open end down, push raising lever round until the can engages with the chuck, turn the crank and at the same time gradually push raising lever round against the frame. The can is now ready for use again.
Resealing. The can is now three-sixteenths of an inch shorter than originally. Remove the reflanging base, put one of the narrow washers on the top of the can-raising lever, then the standard can base, and the sealer is now ready. Proceed as with the original can.
Cutting the Can the Second Time. Proceed as at the first time, only be sure to cut off the opposite end. The can may be cut open and reflanged only twice, once on each end of the can body. In cutting and reflanging the second time, leave the three-sixteenth-inch washer under the can base and reflanging base.
Resealing the Second Time. Remove reflanging base and put the second three-sixteenth-inch washer under the standard can base and proceed as directed under resealing.
THE SOLDERING OUTFIT
The soldering equipment required includes a capping iron, a tipping copper, soldering flux, a small brush, a porcelain, glass or stoneware cup in which to keep the soldering flux: sal ammoniac, a few scraps of zinc, solder, a soft brick and a file.
Soldering Flux. Soldering flux is a solution of zinc in crude muriatic acid. It is used for cleaning the irons and for brushing the tins and lead surfaces so as to make it possible for the melted lead to adhere to the tin.