Between the small wooden Dutch Clock of the value of but a few shillings, and the carefully-made Regulator Clock which costs ten times as many pounds, there is necessarily a wide difference; but both may be considered as within the general designation, 'House Clocks.' The former sometimes go for many years with a fair amount of regularity, and are found to be useful to the humblest classes, whose hours for early morning labour are frequently regulated thereby. The latter are made with such accuracy as to correct the time of other clocks, such as turret and church clocks, which are more exposed to the influence of the weather, and are necessarily made upon a coarser scale. In large mansions there is no handsomer or more necessary appointment for the hall or vestibule than a fine eight-day clock, 'to welcome the coming, speed the parting guest,' and to give the time of day to the entire household.

It would be worth while, did our purpose admit of it, to write a chapter on the longevity of Clocks, by way of showing the comparative cheapness of the solid, well-built piece of mechanism whose every item has been carefully put together of the very best and most durable materials by the most skilled horologers. For generation after generation such a sound, well-made time-piece shall keep accurate time, and put to shame by both its performance and the insignificant expense of keeping it in order, the instruments of, it may be, more showy appearance, but less careful construction. Such a clock descends from father to son until its own age is scarcely to be remembered, and is regarded as one of the family heir-looms,—nay, as more,—almost, we would say, as a friend familiar with all the scenes and experiences which have made up family history. It was of such a clock that Longfellow wrote—

It was such an one that Dickens apostrophized in that wonderfully-genial style which won for him so much love and fame:—'My old cheerful, companionable clock. How can I ever convey to others an idea of the comfort and consolation that this old clock has been for years to me!... What other thing that has not life could cheer me as it does! what other thing that has not life (I will not say how few things that have) has proved the same patient, true, untiring friend! How often have I sat in the long winter evenings feeling society in its cricket voice! how often in the summer twilight, when my thoughts have wandered back to a melancholy past, have its regular whisperings recalled them to the calm and peaceful present! how often, in the dead tranquillity of night, has its bell broken the oppressive silence, and seemed to give me assurance that the old clock was still on guard at my chamber-door!'

The Hall clock is often a plain, simple, undecorated instrument, where all others are perhaps somewhat ornamented. Bracket clocks for the staircase or landings, Mantelpiece clocks for the drawing and dining rooms, for the study, the boudoir, and the best bed rooms, have each their separate shape and character specially designed, and are to be found in simple black-stained wood or real ebony, in marble of different colours, in bronze, in buhl, and in ormolu, with or without enamel ornaments, and with or without miniature figures at base, sides, and top. Until lately most of our ornamental mantelpiece clocks were imported from the continent, although French workmanship is generally inferior to our own, but preference was shown by the public to the former on account of the greater attention given by the French to external decorations and variety of pattern. I am endeavouring to provide that for the future this branch of clockmaking shall not be abandoned entirely to our continental neighbours, whose exports of this kind to our country yearly are very considerable. Henceforth by means of new designs specially made for me and by me, and of a sufficiently skilled staff of artistic workmen, selected for the purpose of working under my superintendence, on my own premises, I shall be able to compete on equal, nay, as to mechanism, on superior, terms with the best specimens of decorated clocks from foreign atÉliers. There is no reason why the admitted superiority of English mechanism should not be coupled with the best designs for decorated clock-cases; there is every reason why handsome clocks should be made which will keep time well, and add not only by their beauty but their usefulness to the enjoyment of domestic life. If the proverb, 'handsome is that handsome does,' applies to clocks, English workmanship should soon obtain pre-eminence, for it is well known that the principle upon which French clocks are generally made renders them less durable time-pieces.

The most ancient clocks differed in many respects from those now in use. Clocks of the earlier period had, as we have said, instead of the pendulum now in use, a balance, vibrating on the top of the clock, as the regulating medium. The escapement was of the verge construction, a sketch of which will be seen below, which represents a clock of a most ancient character.

Without entering into any very minute detail of the manner in which motion in a clock is successively communicated from one toothed wheel (G or R) or pinion (e or g) to another, which, indeed, would only tend to perplex the mind of the general reader, it will be sufficient to state the following. S is a square piece of steel fixed to and forming part of the pinion P. In winding the clock the key is placed upon this square, and being turned round continuously in one direction, the pinion P turns with it. This communicates its motion to the wheel R, which is fixed to the cylinder B, and which in its revolution coils or winds up the cord to which is attached the weight A. While this takes place the wheel G is held in check by another wheel, called the 'ratchet,' and a click (neither of which is seen in the sketch), but when the operation of the winding is completed, and the weight A begins to descend, the cylinder B, together with the wheel G, turn on their common pivots V, V, and the motion is thus communicated from wheel to pinion until it reaches the escapement-wheel I. The teeth of this wheel, in its revolution, act alternately on the pallets i, h, which project from and form part of the spindle or verge K, M, and thus produce a vibratory or backward and forward motion of the balance L, L.

Were it not for this detention, the duration of which is much increased by the swing of the balance, the weight A would descend with gradually accelerated speed, till, in a few moments, the cord would be entirely unwound from the cylinder, and the clock be at rest.

The Spring Clock as ordinarily made is thus constructed. The frame consists of two oblong plates of brass pinned together by short pillars, and pierced with holes, in which run the arbors of the various wheels. Next, the mainspring, the moving or motive power of the clock, which is a riband of steel, highly tempered, and enclosed in a cylinder or barrel. In the middle of this barrel is the spring or barrel arbor, to which the spring is hooked at one end, the other end being fixed to the circumference of the barrel. Outside the frame or plate, and at the end of the arbor, is the ratchet, a wheel with saw-like teeth. This is acted upon by a click, which, falling into the ratchet teeth, prevents the recoil of the mainspring, so that the spring has no means of uncoiling itself, except by the moving of the train of wheels. This click is screwed to the outside of the oblong plate. The power of the mainspring is transmitted to the train of wheels by means of a chain or gut, one end of which is fastened to the outer edge of the barrel, and the other end to the fusee, which is of conical shape, securely fastened to the arbor or axis of the main wheel; on this same arbor is the square, on which the key is put for winding. When this square is turned in winding, the fusee draws the chain or gut from off the outer edge of the barrel, and coils up the spring within it. The spring when fully wound, and consequently at its greatest power, acts by means of the chain or gut on the small end of the fusee, which in turning drives the train of wheels. As the spring becomes gradually uncoiled, and the power exerted less, the leverage is increased in the same proportion by the increased width of the fusee on which it acts.

To prevent the straining of the spring, a little contrivance called the stop-work is introduced. It consists of a piece of steel somewhat in the shape of a bayonet, which is so fixed and contrived that the last turn of the gut or chain on the fusee forces the stop into contact with a projection on the end of the fusee, which abutting against it, forms the check felt when the clock is wound up. On the same arbor with the fusee is fixed the main wheel, which with the before-described contrivance of click and ratchet, permits the turning of the fusee or winding-up of the clock, while it itself remains stationary. This wheel acts in the centre pinion (a pinion is a little wheel playing in the teeth of a larger wheel, and has six, eight, ten, or twelve teeth, or, as they are called, leaves), which is fixed to the centre arbor, and carries the minute hand. This pinion is so constructed in relation to the other parts of the clock as to make one revolution in an hour; the centre wheel being firmly riveted on the pinion, it must also revolve once an hour. The centre wheel acts into another pinion, which is called the third wheel pinion, upon the arbor or axle of which is securely fixed the third wheel, which again acts in the escape-pinion carrying the escapement-wheel. On the top of the back plate is firmly screwed the back cock, or the support of the pendulum, which is suspended from it by a flexible spring, as before described. This pendulum receives impulsion from the wheel-work by means of the crutch, a small part attached to the arbor of the pallets, and which projects downwards about three inches, parallel with the pendulum rod. To the lower part of the crutch is screwed or riveted at a right angle a piece of steel, in such a direction as to penetrate the pendulum rod, which has a slot or hole cut to receive it; impulsion is thus given to the pendulum. Between the frame and dial-plate is the motion work, consisting of three wheels; the first, called the minute wheel, is attached to the arbor of the centre wheel, which, it will be recollected, makes one revolution an hour, and acts in a wheel of the same size, whose axle carries a pinion serving to drive the hour wheel. This hour wheel is supported by a bridge screwed over the minute wheel. The dial is pinned on to the front plate; the hour hand is fixed on a socket communicating with the hour wheel, and the minute hand on the arbor of the centre wheel.

When a clock is intended to strike, a separate train of wheels has to be introduced into it,—one train of wheels serving to keep the time, and another train for the striking part. It may be as well to add that a greater amount of labour is required to make the striking than the going part of a clock.

There are only two kinds of striking parts now in use, and these are characterized by the terms 'Rack' striking work, and 'Count-wheel,' or 'Locking-plate,' striking work. The Rack striking work (see next page) is the best and safest ever introduced, because with it the clock may be made to strike any number of times within the hour. A, the minute wheel

revolving in the direction of the arrow, and driving the wheel B, which is of the same size, and has the same number of teeth. C, a pin fixed in the wheel B, and acting on the lever D, which has its centre of motion in the point E. L, the click, the lower point of which acts in the teeth K of the rack M. S, the rack-spring, which acts upon the lower end of the rack, or, as it is called, the rack-tail, and brings it in contact with the snail P. Q and R are the jumper and its spring, by which the snail P, fastened to the star-wheel O, is kept in its place. Y, the centre of motion of the rack, on which it acts freely. In the wheel A is fixed a pin U, which, as the wheel A rotates, gradually forces before it a tooth of the star-wheel O, which carries with it the snail P, until at last the second step of the snail is opposite the rack-tail. While this is going on, the wheel B, driven by the wheel A, is advancing in the opposite direction, and, by means of the pin C, is pushing before it the end of the lever D. It is obvious that the other end, F, of the lever will be gradually raised, and this will lift the lower point of the click L out of the teeth of the rack. The latter being now free will yield to the action of the spring S, which will force its lower end into contact with the second step of the snail, and throw back the head of the rack to a corresponding extent. By this action the striking train of wheels is released, and the two wheels, G and I, seen in the upper part of our cut, begin to rotate, but are stopped by H, a pin that is caught by a stud which projects from the end F of the lever. As the wheel B advances, the pin C gradually frees itself from the long arm of the lever D, which drops by its own weight into its original position, and frees the wheels G and I, which immediately commence once more to rotate. At the centre of the wheel I is fixed the gathering pallet, that, as it revolves with the wheel, gathers up one by one the teeth of the rack, which is prevented from falling back by the lower end of the click L, and thus gradually draws it forward until the last tooth is reached, when the end of the gathering pallet abuts on the end of the rack head, and the train of wheels is once more at rest. It is obvious that for every tooth of the rack which is gathered up, there is one revolution of the wheel I, and this communicates with the tail of the hammer, causing at each revolution a blow on the bell. There is, as will be at once seen, an important connection between the various parts. When the second step of the snail is presented to the rack-tail, the head of the rack is thrown back a distance corresponding to the width of two of its teeth. This requires two revolutions of the gathering pallet to return it to its place; and these two revolutions of the pallet and the wheel which carries it govern the two blows on the bell which signify the hour. At three o'clock the third step of the snail will be presented to the hammer-tail, and so on.

On the next page is an illustration of the back part of a French Clock, as seen upon opening the door of the case. At the right hand side will be observed the count-wheel A, fitting tightly upon a prolonged square arbor of the second wheel in the train, and having twelve openings of unequal length around its outer edge, 1, 2, &c. Just above the wheel towards the right will also be seen the 'Dog,' or 'Detent,' F, which falls into these notches, and is a part of the locking similar to that which is represented at the stud and the pin H. So soon as the stud is lifted the pin becomes disengaged, the wheel-work revolves, and the count-wheel being firmly fixed to the prolonged arbor of one of those wheels, advances with it in the direction indicated by the arrow, the detent resting upon the plain part of the locking-wheel. When the required number of hours have struck, the notch approaches the detent, the gravity of which allows it to fall therein.

In connection with this detent is also another projecting piece, which is carried inside the frame, and when it falls presents a broad surface to a pin fixed in the rim of one of the wheels. Thus the motion of the wheel-work is stayed until this piece is again lifted by the going parts from the pin, and held in that position by the outer rim of the locking-wheel A, until again the next notch is presented to the detent. When it falls, the stud is carried with it, against which the pin becomes engaged. The number of strokes depends on the distance which the count-wheel has to revolve before being stopped by the detent F. The chief objection to the locking-plate being used for striking, arises from the fact that, if ever the clock is allowed to run down, or if the clock gets otherwise stopped, it strikes wrong afterwards, until it has been properly re-set to the hour.

Clocks are made of all manner of shapes, patterns, and sizes, for all manner of places, positions, and persons.

Bracket Clocks, which are intended to occupy but a small space, say on a staircase, or lobby, or landing, are sometimes made with extreme finish, care, and elegance, sometimes are simply plain and devoid of embellishment. They are constructed with or without striking work.

Chime Clocks are a great addition to the attractions of a house. They are usually made to go eight or fifteen days; to strike the hours and quarters on four or eight bells or gongs.

Musical Clocks are constructed so as to play several tunes at certain intervals with the greatest finish and perfection. The mechanism for time-keeping being easily disconnected from the musical mechanism, the latter may be stopped without any interference with the clock as a time-keeper.

Carriage Clocks are made so as to be unaffected by the motion of the vehicle. They are usually of a small and squarish shape, enclosed in leather, so as to protect the case from scratches; but they vary in size,—measuring usually from four to seven inches high by two-and-a-half to four inches in breadth and the same in depth. Some are made without striking movement, some to strike hours, half-hours, and quarters, some with repeating work, and some with an alarm added to them.

Library and Dining-Room Clocks are frequently seen decorated with highly elegant ornaments, in bronze, marble, ormolu, and with miniature figures, as well as objects of still life, but these clocks are usually not so conspicuously ornamental as those which are designed for the drawing-room.

Skeleton Clocks are so named from their movements being all bare and uncovered. When watches were comparative novelties it was not at all an uncommon desire on the part of their possessors to watch the operations of a mechanism which was regarded as wonderfully resembling life itself. Watch cases were consequently made of crystal, and were found strong and serviceable. In skeleton clocks the escapement is sometimes made a peculiarly interesting feature to the non-professional eye delighting in noting the amazing accuracy with which each piece of the mechanism works and combines to produce the result required.

Regulator Clocks are, as we have said, the most perfect time-pieces which can be manufactured.

Tell-Tale Clocks are of great service in securing the attention and watchfulness of persons left in care of premises or property. They are made with a number of pins projecting round the edge of the dial, and coming into contact once every quarter of an hour with a pin fixed at the top part of the dial, over the part which in an ordinary clock is occupied by XII. The dial revolves completely once every twelve hours, and presents one of the projecting pins to the index every quarter of an hour; the watchman should then be ready at hand to pull a cord, by means of

which the projecting pin is pushed in; otherwise the dial shows the exact time of his absence and neglect of duty.

Electrical Clocks have been several times planned and made by different ingenious inventors, and obtained considerable notice, but they have not been hitherto as successful as was expected. Electricity has been applied to the direct movement of the pendulum itself, and subsequently to the raising a small weight to act upon the pendulum in the style of a gravity escapement. In perhaps the latest of these instruments, called a Magnetic Clock, an electromagnet was used to relieve the pendulum from the influence of the spring by which impulsion had been given, and to make the return or reflex vibration. Electric clocks are now seldom made; electric dials without any clock-movement in connection with them are made to show the standard time by means of a galvanic current sent from the Greenwich Observatory clock at intervals of a minute or half-minute it may be,—even as Electric Timeballs show to distant towns and out-ports, by means of such a current, the exact Greenwich time once a day.

The Electro-Chronograph is a new and useful invention for timing with great precision the quickest of events. It is applied to a central seconds clock with a dial three feet in circumference showing the hours, minutes, seconds and fifths of seconds. This clock erected in a prominent position, say on a raceground, and worked by electricity, enables the starter of a race to set the works in motion; by means of a tape held up at the winning post and connected with the batteries, the winner upon breasting the tape stops the hand of the clock.

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The following simple directions will be found of great use in the management of a Clock:—

When the Clock is unpacked it should be carefully handled with a silk handkerchief or piece of tissue paper, to prevent the moisture of the hands soiling the case. Unscrew the bell and take it off, then put on the pendulum by passing it through the fork, and hang it upon the two small brass pins, with the hook from you. Screw on the bell with the convex part outwards, taking care that it does not touch the pendulum.

The stand or bracket should be both steady and level before the Clock is placed upon it; for, unless the Clock is quite in proper beat—that is, unless the beats or ticks occur at equal intervals, it cannot go regularly.

In order to set the Clock to the hour of the day, the minute-hand should be turned on carefully forward with the finger and thumb, the setter pausing as he reaches the XII. and the VI., to allow the Clock to strike each hour and half-hour.

If the striking should at any time be wrong, and it should strike the hour at the half-hour, or the half-hour at the hour, the error can be rectified by moving the minute-hand on to 5 minutes before the hour, or half-hour, and then back until it strikes.

Or, if it should strike a wrong hour—e.g., supposing the Clock should strike 3, and the hour-hand point at 7, then the hour-hand may be moved back to 3, and the Clock afterwards set to the hour of the day in the usual manner.

If, at any future time, the Clock should require regulating, the small steel square above the XII. is the regulator, and turning it a little to the right (half-turn of key) will make the Clock go faster, and to the left, slower. This should be repeated until the desired effect is obtained.

The bell-stud, or arm to which the bell is screwed, is purposely made of soft metal, so that it can be bent up or down so as to obtain a heavy or light blow of the hammer as may be desired.

Both squares in the dial should be wound once a week.

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