The Rack-hook is placed above the rack to catch the rack as it is gathered up by the gathering pallets, and when the proper number of strokes has been given this hook falls into a deep tooth, and then, by means of a locking-piece attached to it, causes the train to be locked with the stop-piece on the fly-pinion arbor, this latter piece forming part of both the locking and warning work. The lifting-piece lifts the rack-hook out of the deep tooth in the rack and locking, by means of a snail or eccentric fitted on the set-hand arbor. On this lifting-piece is also a piece for the warning, fitted on a small stud. The pendulum rod has a brass top, and some adjusting work with a steel suspension spring set in brass, by means of which the clock can be put in beat with great exactness, there being no necessity with this adjustment to bend the crutch as heretofore, for the crutch on the verge arbor has a pin screwed into it which communicates the escapement to the adjusting work or pendulum, and keeps it in motion. At the bottom of the pendulum rod is an iron screw and nut by means of which the pendulum bob is raised or lowered, and the clock made to go faster or slower. The motion or dial work for driving the hands are outside at the back of the dials, and consist of two wheels and pinions working in one another, the larger of the two being fitted to a socket and tube. At the other end of this tube is another socket for the hour hand to be fixed to; and through this tube passes another iron rod, at one end of which rod is fitted one of the pinions and the minute hand, the other wheel and pinion being fitted on a socket worked upon a stud in a cock bolted on a bar called the dial bar. If the clock has to drive more than one pair of dial hands, wheels called bevelled or angle wheels are used, which may be cut to suit any angle, so it will not matter how far off the dials may be fitted, or how many they may be, so long as the proper expansion and universal joints are fitted to them. The Hammer-work consists of an iron frame with an arbor pivoted into brass bearings, and upon this arbor is fitted a lever, one end of the lever holding the hammer-head, and the other end raising the hammer. The lifting of the hammer is done by means of a wire from the hammer-tail previously mentioned. There is also a steel spring attached to the lever to prevent the hammer chattering on the bell. +----------------------------------------------------------------------+ | [Illustration: The Rack.] | | | | [Illustration: Pendulum Rod.] | | | | [Illustration: Quarter or Chime Clock.] | +----------------------------------------------------------------------+