The Figs
282 and 283 represent an Elgin 16 size open face pendant-set watch. Fig. 284 represents a Waltham 18 size pendent-set watch. The weight W is shown herein separated from the working-lever, that controls the wheel 2. The stop s on the yoke is formed aside from the notch arranged into the circular edge of the yoke and the rocking-lever is always pressed against the same by a suitable spring. The wheel 2 is held out of gear with the seconds-setting wheel 1 as long as the said notch is not engaged by the rocking-lever, this being only the case, by first holding the watch with its stem E down, so that the weighted part W can engage the stop s, which is brought toward and against the same, when the stem is pulled outwardly. In this position the notch of the yoke is exactly moved in line with the end of the rocking lever and engaged thereby, which is turned with its wheel 2 out of connection with the seconds-set wheel 1, as shown in Fig. 284. In pressing the stem inwardly, the yoke is again brought back to the winding position as usual and the notch away from said rocking-lever, which is thereby turned with its wheel 2 out of connection with the wheel 1. When the minutes are to be set, hold the watch in any position except with the stem downward, and pull the stem outwardly. The motion of the yoke is then produced by its spring to its fullest turn, that is, the setting-wheel S is brought in connection with the dial-wheel D, as usual. It will thus be seen, that as long as the rocking-wheel is held against the circular edge of the yoke, the wheel 2 is held out of gear of wheel 1, and can only connect with the same when the yoke is shipped around sufficiently and stopped by the weight, and this can be done only by pulling the stem out so that the notch can come in line with the end of the rocking-lever, which moves into the same and receives thereby the motion to set its wheel 2 into gear with wheel 1.
Fig. 286 is a seconds-setting attachment which can be placed on key or stem winding watches of a peculiar construction. I is the seconds hand wheel and the wheel 2, which is placed on a small longitudinally movable stem, is shiftable in or out of connection with the said wheel 1 by the outward or inward motion of said stem. The invention was patented March 20, 1888, by Fred Terstegen, of Elizabeth, N. J.