3/2/2023 0 Comments Foreign mantle clock gistoIn other words, the old oil solidifies and becomes an abrasive rather than a lubricant. Then we manually clean the clock parts with a cotton cloth and peg wood to be sure we get off all the old oil. We use magnification to inspect all areas for damage. When a mainspring breaks there could be damage to the wheel train on the pinions and pivots. Inspection is done on every pivot and bushing hole to determine the best course of action. A clock movement overhaul or restoration does require the unit to be taken apart. However one of the American clock repair options is to send in the movement for an overhaul instead. The movement is no longer in production and not available new. Replace the movement with a modern reproduction made in India, or repair the clock movement. For the antique American made clock to function again there are two main clock repair options. It sits for so long until one day it is just time to do something about it. It's a shame when a clock is not able to operate for years on end. Please note the drop may fluctuate, the 13 inch drop unit may keep actual time anywhere between 12 1/2 and 14 inches. The pendulum drop from the hand shaft and all the way down is available in variable drop lengths on some units. The center shaft / arbor configuration will match up to many original dials. Match the winding arbor measurements, pendulum drop and hand shaft length from the old unit to the new. The pendulum length is from the hand shaft and all the way down. Then there is the hand shaft length from the front outer plate of the movement and all they way out to the end. This is to be sure it will fit the old clock dial and line up with the key holes to wind the clock. These will all have to match the below diagrams. The dimensions of the winding arbors in relation to each other and also the hand shaft hole in the dial. These bar style movements are in many antique American time strike units. When an antique clock movement has a repair that has gone wrong or already has 20 bushings in it or something silly, it may just make more sense to stick one of these in there instead. We do offer these units despite this because they do serve well as far as just making the clock work for a bunch of years instead of giving up. The brass is thinner and also the quality of the brass is not the same as it was. Brass quality is not the same from when it was back in the 20's - 40's. Although they do the trick and get the clock up and running for many years, it's not the same quality. The India movement even goes as far as calling them replicas but this is not 100% accurate. With consistency in the production runs, the India manufacturers began producing replacement units for American clock movement matching. The hand shaft length from the front plate and all the way out to the end had some consistency in later years also. All the pendulum lengths were cut back to 4 lengths due to the mass production of the American units. They all run for 8 days on a single full wind with the clock key. All of these units have the type of suspension with the feather steel at the top and a hook on the bottom. The winding arbor distances between each other and also the hand shaft were often the same. Most of these units had a bar style outer plates instead of a full brass plate. Mantle clocks, short drop wall clocks and the long drop units were also popular in this time period. Subsequently, they are the ones seen in Kitchen clocks, gingerbread clocks, and in thes shelf clock series of Steeple clocks. Americans fell in love with the eight day time strike units back in the 1920's through the 1940's. American clock movement matching is to replace the antique unit with a modern equivalent.
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