1 / How to draw a clock?
To draw a clock, you need a sheet of paper, a pencil, a ruler, a set square, and a compass. Follow these steps: Step 1: Draw a circle about fifteen cm in diameter, more or less depending on the size you want. Step 2: Using a ruler and a square, draw a cross at right angles, the intersection of which is in the center of the circle, at the level of the compass trace. Step 3: At each of the four intersections of the cross and the circle, write down the numbers 12, 3, 6, and 9. Step 4: Add the missing numbers, being careful that they are at equal distances; draw a line to make a guide. Step 5: You can draw the needles if you want, starting from the center.
2 / Who invented the clock?
It cannot really be said that there is a particular designer of the clock. The origins of the clock go back over 6000 years, when sundials were invented. The Egyptians made sundials more functional by building obelisks, at the foot of which were placed circular discs; their shadow, depending on the position of the sun, made it easy to read the time. Sundials were later improved in Greece and in the empires of Rome. Sundials were then replaced by mechanical clocks. In the beginning, mechanical clocks ran on water, which was used as a source of energy. It was the Chinese engineer Su Sung (1020 - 1101) who perfected this mode of operation; it served as the basis for modern European and Arab clocks created during the centuries that followed. Historically speaking, it was the German inventor Peter Henlein who created the first modern spring clock in 1511.
3 / How to date a Grandfather clock?
Comtoise clocks, originating in Franche-Comté, were made between the 17th and the 20th century. To date a Grandfather clock, the following elements must be analyzed. The pendulum suspension: The pendulum suspension is a mass in the shape of a triangle, attached to a wire. If it is at the back of the clock and measures a dozen centimeters, the clock dates from before 1760; if it is still behind but only measures 5 cm, the clock was made between 1740 and 1800. In around 1795, the suspension moved to the front. This system was used until 1825; then the system is replaced by a spring. The detents: The detents are the wheel locking levers; before 1800, the large trigger worked thanks to a spring placed at the level of the right rear upright; after 1800, one or two counterweights replace the spring. The motif of the headdress: It generally relates to the political era during which the clock was made: for example, during the French Revolution, the Phrygian cap was drawn there; under Napoleon, they were eagles. Here are some elements that will allow you to date a Grandfather clock. To be as precise as possible in the dating of clocks, it suffices to combine the various elements listed above. But be careful: some clocks that look like they were made at a certain time may be older than they appear; they may have been modified by watchmakers in the meantime.
4 / How is a clock made?
5 / How to date an old clock?
Here are some elements to date an old clock. The name of the maker: If you know the name of the maker of the clock, it can help you date it. Look on the clock for a plaque on the back, an engraving, or an inscription on the dial. This indication can also be found inside the clock. Be careful: the name entered can also be that of the dealer of the clock. The counting wheel: Depending on the time, this cog does not have the same shape. Between the 17th and during the first half of the 18th, the wheel is full; during the second half of the 18th century, the wheel has the shape of an openwork star; from the 19th century, it was fitted with hollowed-out spokes. The dial: In the 17th century, the dial was generally made of pewter, gilded brass, or silver brass. Under Louis XV, it is in bronze or enamel. Over the next century, the dials were no more than a single disc of white enamel, sometimes decorated, and their size decreased. The needles: In the 17th century, the needles were made of brass. In the 19th century, the brass is openwork. Subsequently, the more time passes, the more they are endowed with a simple shape, and made of steel.