The mechanism is intended for sorting U-shaped blanks 1 so that they are fed into a press in the proper position. Blanks 1 can be fed into feeding disk of the press (not shown) only when they are in the position indicated in Fig. a. In this case, plunger 3 reaches the bottom of the blank in the downstroke of cross- member 2, thereby preventing the ejecting action of horizontal plunger 4. Plunger 4, together with slider 5, is shifted to the left by lever 6 which is turned clockwise by lever 7 when the upper end of its slot f pushes pin d of lever 6 downward. Latch 8 restricts the stroke of plunger 4. In the upstroke of cross-member 2, plunger 4 reaches its extreme right-hand position before plunger 3 is extracted from the blank. At this, latch 8, moving to the right with slide 5, runs up against fixed pin 9 and releases plunger 4. Plunger 4, actuated by compressed spring 10, moves to the left, feeding blank 1 into the press. If the next blank is in the same position as in Fig. a, then in the downstroke of cross-member 2 horizontal plunger 4 runs against blank 1 clamped by vertical plunger 3 and is shifted to the right with respect to slide 5, occupying its initial position. If, however, the next blank is admitted in the position indicated in Fig. b then, in the downstroke of cross-member 2, horizontal plunger 4, moving to the left with slide 5, ejects the blank. In this case, vertical plunger 3, which has a slot at its lower end, moves downward, straddling plunger 4 without impeding its motion. In the subsequent cycles, plunger 4 will occupy its extreme left-hand position when a blank is admitted in the position of Fig. b, and in its initial position when a blank is admitted in the position of Fig. a.
$1379$LG,SF$