. 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 . placed in the forming machine between a V-shaped form-ing blade and die bed and all ends are formed, one endat a time, by depressing a foot treadle. This machine is adapted for forming flaring andstraight work, but where there are variations in the flaredesired extra forming blades and die beds are used. Foreach size of pan or box an extra forming blade is neces-sary. The length of the die bed is 2
. 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 . placed in the forming machine between a V-shaped form-ing blade and die bed and all ends are formed, one endat a time, by depressing a foot treadle. This machine is adapted for forming flaring andstraight work, but where there are variations in the flaredesired extra forming blades and die beds are used. Foreach size of pan or box an extra forming blade is neces-sary. The length of the die bed is 25 inches and the formingblades are made 8 inches or less in width and from 8 to25 inches long. With this machine it is possible to formpans as shallow as y2 inch and as deep as 5y2 inches; andthe lengths of pans that can be formed depends entirely 56 SHEET METAL WORKERS MANUAL upon the depth of pan required. With special bladesand die beds a variety of bending operations can be per-formed with this useful machine. Brace and Wire Bender.—Figure 22 shows a brace andwire bender, a machine that is not only handy, but in-dispensable to have on the sheet metal shop bench for Bending PlateGrooved. Set Screws Hold DownScrews Bending PlateFlat Surface Bending Bar Hand Lever Figure 22.—Brace and Wire Bender. making braces for gutters, leaders, cornices, etc. A greatdeal of flat iron up to 14 inch thick and 2 inches in widthis used by the sheet metal worker, and the purpose ofthis machine is to bend such stock in angles, as may berequired, of from 0 to 90 degrees. Many a good foldingmachine, cornice brake, and vise has been easily SHEET METAL WORKING MACHINERY 57 sprung in an attempt to do such bending with them,instead of using this bending machine. Flat steel to be shaped is inserted under the flat sur-face of the bending plate, and in bending wire the bend-ing plate is reversed and the wire inserted under one ofthe grooves. Raising the bending bar by means of ahand lever, the bends
Size: 1865px × 1340px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookidsheetmetalwo, bookyear1918
