GB417098A - Improvements in and relating to the manufacture of sinks and the like - Google Patents

Abstract

417,098. Lavatory basins and sinks. BRIGGS MANUFACTURING CO., 11631, Mack Avenue, Detroit, Michigan, U.S.A.- (Assignees of Graf, V. J.) March 7, 1934, Nos. 7282 and 7283. Convention dates, March 31, 1933 and Aug. 25, 1933. [Class 26.] A metal lavatorybasin or sink with flanged apron E and splash plate C is pressed in a series of dies from a single sheet of metal, Fig. 3, the junction of the splash plate flange C2, Fig. 11, with the apron A being drawn from the piece I, Fig. 9, and from pressed up bulges R at the corners. A web piece K may be left which can be removed afterwards. The sheet goes through the following series of operations in appropriate dies : (1) cupping to form the sink B ; (2) partially bending up one side to form the splash back, (Fig. 4, not shown) ; (3) stamping the draining boards; (4) Fig. 6 (not shown); (5) bending the splash back to a right angle by die 42, Fig. 8, and forming corner swellings R by punches 45, Fig. 10; (6) flanging the edge C<1> of the splash back and merging the flange C<2> with the apron F and embossing a panel C<3> in die (50) Fig. 10 ; (7) cupping embryo draining hole and also bending down the apron A (Fig. 12 not shown) ; (8) trimming off the edge of the apron by cutters 64, Fig. 14, operated by the wedge fan 62 of the press 61 ; (9) trimming off the back and side flange similarly ; (10) flanging inwards a narrow edge all round in dies operated similarly to Fig. 14 ; (11) punching through the drain hole.