![]() Ensure that the screw is driven almost fully home to hold the clock close to the wall. Ensure it is big enough to support the weight and small enough to fit the hole in the back of the clock. Hang it from a secure screw, preferably a dome head rather than a countersunk as there is less risk of it sliding off. Also avoid any position where it is liable to be knocked as someone passes by. And don't hang it over a radiator or fireplace where it will be subjected to intense heat and rapid temperature variations. It must be level and perfectly vertical or the pendulum may come into contact with the weights or backboard. For the same reason stud partition timber walls are not suitable. Wall clocks require a brick or blockwork wall, not the one with a door or window in it as constant opening and closing will send vibrations through the clock. If they are left free-standing the tendency is for them to stop, usually when the weights and the pendulum are of equal length and oscillate in harmony with each other (often day four for an eight day movement). Once set up, they should be screwed to the wall, particularly if standing on a carpet or where there is any likelihood of movement caused by loose-fitting or creaking floorboards. Longcase clocks (or Grandfathers) should be positioned on a level floor, preferably without a carpet underneath, and wedged to ensure stability. The frequent earth tremors in this region are enough to disturb the delicate balance of a 400-day movement and it will repeatedly stop. If you are thinking of setting up a 400-day clock in the foothills of the Himalayas, don't bother! Get a carriage clock instead. They should be level but if the place is slightly out of true, the clock may be adapted to suit, as explained below. ![]() A shelf, mantelpiece, bracket or heavy unit on a concrete floor are infinitely better. So avoid any unstable surface like the television, a table on a carpeted floor or any furniture standing on loose or springy floorboards. Mantel clocks with a pendulum on the other hand like rigidity, especially 400-day clocks. Also avoid side tables which get knocked and any low position on a level with wagging tails and young inquisitive fingers. All these clocks are easy to site but avoid window ledges - if the sun doesn't harm any woodwork first, one day you might find it has been stolen. Any clock with a balance wheel is easily identifiable as, unlike the rest below, they have no pendulum. LOCATION: Before fitting the pendulum, decide where to display it.Ĭarriage clocks are like mechanical watches in that they have a balance wheel (platform) escapement and so will run in any position, even lying on the back seat of a car (they were designed for travelling so they can tolerate movement). You'd probably do well to bookmark this page so that you can return to it again later but if you've bought your clock from me, I usually include a hard copy of some instructions specific to each clock when I pack it. To make it easier to navigate, you can jump straight to the section you want by clicking on one of these headings: Please read through everything first and then return to this page to study the parts in sequence when you're ready to set it up. *When the rhythm of a pendulum or similar mechanism’s periodic motion remains constant, regardless of its amplitude.There's a lot here because it covers different types of clock. ![]() However, the reciprocating motion of the foliot balance was not isochronous*, and it was therefore unable to provide stable accuracy. ![]() The pallets follow the rhythm of the foliot balance’s reciprocating motion and mesh with the teeth of the wheel (escape wheel) of the crown wheel escapement to keep the rotation to a steady speed.īy adjusting the position of the weights on the foliot balance, or changing their weight, the speed of the oscillation could be adjusted to either speed up or slow down the clock. The crown wheel escapement comprises a crownlike wheel (escape wheel) and the two pallets connected to the rotating shaft of the foliot balance. At the center of the foliot balance is a rotating shaft with two protruding pallets attached at the top and bottom. Generally, a foliot balance comprises a rod with toothlike projections along its top and weights hanging from both ends, which swings back and forth horizontally. ![]()
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