Fig. 1706.
Fig. 1707.
In [Fig. 1704] we have a link in which a hole is to be bored at one end at a certain distance from a pin at the other, and the fixture, or jig for drilling, is shown in the sectional view, [Fig. 1705], the side view, [Fig. 1706], and the top view, [Fig. 1707]. It is obvious that the pin p and the face w of the link must be made true, and that a hardened steel bush may be placed in the hub to receive the pin p. The screw e binds one end of the cap d, and eye-bolts with thumb-nuts f bind the other, these bolts being pivoted at their lower ends, and passing through slots in d, so that as soon as nuts f are loosened, their bolts may be swung out clear of the cap, which may be swung on one side from the pin n as a pivot.
Fig. 1708.
