. Sheet metal workers' manual; a complete, practical instruction book on the sheet metal industry, machinery and tools, and related subjects, including the oxy-acetylen welding and cutting process . fee Pot J J ^Standard Bead Rolls / _ , D . / Triple Bead Rolls Figure 59.—Light Beading Machine. Connecting Gears with the right hand and guiding the work with the lefthand, the work revolves around the rolls, completing animpression in the metal to conform with the design in thebeading rolls used, thus ornamenting and reinforcing the1body of the work. The beading machine illustrated in Figure 58 i
. Sheet metal workers' manual; a complete, practical instruction book on the sheet metal industry, machinery and tools, and related subjects, including the oxy-acetylen welding and cutting process . fee Pot J J ^Standard Bead Rolls / _ , D . / Triple Bead Rolls Figure 59.—Light Beading Machine. Connecting Gears with the right hand and guiding the work with the lefthand, the work revolves around the rolls, completing animpression in the metal to conform with the design in thebeading rolls used, thus ornamenting and reinforcing the1body of the work. The beading machine illustrated in Figure 58 is manu-factured in two sizes, having a depth of throat 12 inchesand 6% inches respectively, and heavy enough to bead oiswage iron of No. 20 gauge and lighter (U. S. Stand-ard). Figure 59 shows a beading machine of light capacity SHEET METAL WORKING MACHINERY 97 No. 26 gauge iron and lighter (U. S. Standard), made intwo sizes, with a depth of throat of 5y2 inches and 4inches respectively. Four pairs of beading rolls, with anadditional pair of rolls with the smaller machine havingthe 4-inch throat, complete the roll equipment type of beading machine is used very extensively by. Figure 60.—Heavy Beading Machine. the tinware manufacturer and in the shop of the sheetmetal worker where the work to be beaded or swaged islight and of a uniform kind. Heavy Duty Beading.—Figure 60 shows a beadingmachine suitable where a large heavy-duty machine isrequired. This machine has a depth of throat of lO^inches, the rolls measuring 4T76 inches in diameter; and 98 SHEET METAL WORKERS MANUAL is back geared, with a ratio of gearing 4% to 1. It isclaimed that it will make impressions in sheet iron gauge and lighter (U. S. Standard). When arrangedfor power drive, the shafts are extended and tight andloose pulleys are fitted. A beading machine of this capacity is very much usedin shops where furnace casings, large tanks, and such Crank Screw-Crank ScrewStud BeadinqRolls J Pi
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