I had no idea that there was so much that went into these clocks! I just got a 31 day korean movement pendulum clock. I don't know of any new rotors being produced. Some very fancy clocks will use even higher gear ratios to run longer on a single winding, but these clocks must make some accommodations for the loss of power due to the high gear ratio. Method #3: Using the Time Trax machine. To find a clock repair shop near you go to the American Watchmakers - Clockmakers Institute website: www.awci.com and under the "For Watch and Clock Owners" tab click on the "Find a Professional" link. I have a nice grandmother clock & the time runs fast. Would the repairs to get the hour strike and time regulated be a costly endeavor? The main wheel of the . Calibrating to 1 Minute It is possible to calibrate to almost 1 minute. However, Hammond stayed with the manually started clocks and advertised the advantages: In an age of very frequent power outages, a self starting clock would stop when the power went off and then restart when the power came back on sometime later. Most modern clock hands are mounted on a brass bushing. If not, there are many great clock repair technicians out there. This is done by hand. But it runs slow. Hermle Mechanical Pendulum Mantel Clock Instructions Hermle Mechanical Mantel Clock Instructions (Westminster Chime and Triple Chime) Hermle Wall Clocks with Mechanical 4/4 Westminster Chime Instructions Ship's Bell Strike Clock Operating Instructions Hermle Mechanical Skeleton Mantel Clock with a Pendulum (8 or 14-Day power reserve) It is the original to the clock. In this blog I answer commonly asked questions about how to care for your clock. Sorry for the late reply. How much longer does the pendulum need to be? Thats why you stopped the clock. 2. Using the above terms we can say that the escapement mechanism converts a known number of pendulum's beats per minute B m into a known and adjustable on demand rate of revolution of a single gear number of full revolutions R m of a single gear per minute. Enjoy reading your comments. The purpose of this train is to convert twelve turns of the cannon pinion (which drives the minute hand) into one turn of the hour hand. Usually you turn the thumb wheel to the Left to make the clock run faster and to the Right to make the clock go slower. Either there are lubrication issues or there is wear in the movement. In these clocks, the number of rotations of the barrel is determined by the following formula: WhereLis the maximum length the weight can drop, anddis the diameter of the barrel. Now pull the weight back about a foot and let your pendulum start swinging. The app analyzes the ticking sound of the escapement to determine the clock's running rate measured in Beats Per Hour (B/H). There is another way, its called setting the beat rate. Try moving only forward, because moving hands backwards might stop the clock. I removed the Second Hand and tried again. to run properly. . It starts out on time and then as the day goes on it looses time. A pendulum or a bob attached to a rod. Calculating seconds per pendulum period The minute hand takes one hour to turn, so the minute wheel takes the same time to make one full turn. For the case of Beats Per Hour (BPH) at least 2 decimal places. How do I adjust the time keeping? (I wound it two days ago and it is fast by about 40 minutes now, for example.) Free online Tap BPM tool allows you to calculate tempo and count Beats Per Minute (BPM) by tapping any key to the rhythm or beat. The shaft is made of a material that does not bend, stretch, or change in dimension with temperature. I found an old wind up mantel clock in an op shop. This type of escapement was typically used in only the best-quality clocks and chronometers. If you are near Mount Vernon, WA, please feel free to stop by my store. I have a similarly issue to John L in this string. The job of the escapement is to precisely control the speed at which the train turns, thus allowing the train to keep accurate time. If we were to use a 2:1 ratio, the results are even better: c = M/2(c+M) = (m+H) => H = (3M/2)-m(M*H)/(c*m) = 12 => H = 6mWhich leaves us with:M = 14m/3. A few of the gears inside will move as you turn the hand so that the hour hand will move accordingly. https://www.youtube.com/watch?v=biDxyjwC88I, How clocks work (in 5 easy steps) I Curator's Corner S3 Ep 3 #CuratorsCorner (https://www.youtube.com/watch?v=biDxyjwC88I), https://www.youtube.com/watch?v=WE8pO3Zq-z8, How A Mechanical Clock Works (https://www.youtube.com/watch?v=WE8pO3Zq-z8), Wood Pre-Craft (Drying, Identification, Selection, etc. If you are near Sedro-Woolley feel free to bring it by during regular business hours. The far end of the cannon shaft is filed square to fit the minute hand bushing. Last night, my best friend told me that he and his friend were planning to buy a JB Stamp Barrel Head Clock that he could install in his art studio for better appearance, and he asked if I had any thoughts on what would be the best option to consider. In general, moving the fork on the spring up will give more push to the pendulum and will cause a longer rotation which will make it slower. Again remember to grasp the hand close to the bushing when making this adjustment. I was wondering is there something scilly I am over looking, as the pendulum it a its most for slowing the clock down. Once back together, I checked the hands, the bob, the rod, the verge, everything there is straight and not rubbing. Are you sure you have the correct thickness for the spring? Simply hold the bushing still with a wrench and turn the hand the distance needed so that when you put the hand back on the clock, the hand is pointing straight up at the 12. If you didn't know the power had gone out, you wouldn't know that your clock was inaccurate! i HAVE CHECKED THIS CLOCK AT LEAST 20 OR 30 TIMES AND CANNOT FIND ANYTHING WHERE i CAN SET THE sLOW OR FAST THERE IS NO SCREW TO TURN OR ANYTHING AS i CAN SEE. I have tried removing the pendulum and rotating the little flywheel to the top and to the bottom as far as the thread will allow but neither extreme seems to make much difference. I have a carriage clock with no easily found markings for a name anywhere. Mike, Hi, Mike. The escapement controls the speed of the train by counting beats of the pendulum. When the pendulum swings to the other side, the process is reversed. I have a nutcracker German Clock; I can turn with key clockwise, but does not seem to turn counter clockwise; how do I slow the pendulum down and how do I keep it going; and how do I move the hands to set initially? The cannon pinion drives the minute wheel and pinion, which in turn drive the hour wheel. If you have access to the movement and a careful eye, you can count the teeth in the time train and calculate the correct beat rate for your clock. The beginning of the week it is fast and by the end of the week slow. The result is a shallow swing of the pendulum. The app uses microphone to measure BPH. A pendulum with a fixed centre of gravity will continue to swing at the same rate if no friction is applied. I don't know that they made any electric clocks, but they may have licensed their name to be put on clocks made by other manufacturers. Using the same example. Like now it is about 10 min on the hour off. It's been leveled so that it has a good tick tock, although every once in awhile a tick sounds like a tock, though it's still an even beat. If it sounds like the bird has laryngitis there might be a hole in the bellows that needs repair. Even though all gears in the movement are connected to each other, it is helpful to think of them as three distinct trains based on what they do: Each of these trains will be discussed in detail in the sections below. The gear train determines how many ticks are required to move the clock hands a certain distance. On the positive side, these clocks run so slowly at 8 beats per minute that is is rare to have worn pivots and bushing holes. Time. I have two questions. I think I'll bring it in. Hello there, I have just bought a Rhythm 1960's-70's Japanese Space age pedestal clock in lovely condition but it's gained about 2 minutes in the last 3 hours now. $ 1,218.00 $ 812.00. Using a bit of guesswork on the length and location of the fork I got it running again. . iPhone Screenshots. How it Works So the question now becomes: What good is this theoretical length? The point is to positively identify a movement, know its beats-per-hour and theoretical pendulum length in order to "time out" a clock more efficiently. Beat - The Tick . Is Wood Burning a Physical or Chemical Change. Cut some teeth in the disks, so that they will engage each other! Phone: 717-684-8261. This rate is then compared to a specified Target . Fortunately, they are relatively cheap. Trouble shooting is always a challenge. The friction is the bend in the spring at the top of the pendulum, the light touch on the crutch fork on each swing and air resistance. . I have a ship's clock (chronometer) by Wempe. Best regards, The concepts behind gearing is basic physics, so like any good physics example we will start by considering the theoretically perfect gears two toothless disks like these. Thanks! Bring your mantel clock into your local clock repair shop and they should be able to help you. This is probably your problem. tick . 13 mins. . Calculate Beats and Pendulum Length from Tooth Counts If you know the number of wheel teeth, it is easy to calculate the correct pendulum length and the beats per minute. Do you have appropriate parts for sale? The cannon shaft is a bar with the cannon pinion riveted to it. However, from your discription I am going to guess that your clock was made by Ingraham. This in turn releases the train of wheel in a step-by-step movement. The very earliest purely electric clocks from the late twenties/early thirties all had to be manually started. . It plays music on an alarm setting. help? The most likely problem is that there is dirt and/or wear in the time train. There isn't a uniform rule about the direction you turn to adjust the time keeping. All we need to understand the basics is some rudimentary algebra and high school physics. The rack looks kind of like part of a gear (say a fourth). Wheel 2 and pinion 2 are on the same pivot, so pinion 2 is also at an 8:1 gear ratio. Id also like to mention when I got the clock the seller had placed a lot of packing material (cotton fiber) inside of the clock. The pendulum needs to be lengthened to 22.35 cm. In general, the gear ratio for a train of n gear/pinion pairs can be calculated as: (W1 * W2 * * Wn-1) / (P2 * P3 * * Pn). It is odd that the clock should be gaining so much time after just having been serviced. Thank you for any advice. Time it for 30 or 60 seconds and count how many times it . Power trains can be as simple as single gear connected directly to the power source, or a complex series of gears. Gregory, These clocks are fun and there is always a lot more to learn! Once you have established the approximate position of the bob, you can cut the shaft and thread it for arating nutto allow fine adjustment. Once you have the required measurements, you can search for the appropriately sized double ended key on one of the clock supply websites. I am having the same problem, and no luck in moving the lever to the left. You probably have a clock with a "floating balance". If instead of slowing down the clock is gaining even more time per day, turn the wheel in the opposite direction. I just had it serviced, but I had to go all the way to El Paso Texas to do the service because there are no clock repair shops in Las Cruces NM and I'm about 40 miles West of Las Cruses. Some mechanical clocks (usually cuckoos) don't have an adjustment nut: the bob slides up and down the pendulum rod and is held in place by friction. TimeSavers offers several books on clock repair that can help. Calculating the OD of the wheel or pinion is a little trickier. I am passionate about restoring and repairing antique clocks. Yes. Hi all, Thus as the movement becomes worn, the push the gear train gives to the pendulum is decreased, but the drag on the pendulum during locking is also decreased, so the arc of the pendulum can actually increase and the clock can slow down. This is a more involved way and usually just done by clock makers. (It says "Montgomery ward" on the clock face). MY seth THOMAS MANTEL CLOCK HAS A BALANCE WHEEL AND IS RUNNING FAST IT PICKS UP ABOUT 30 MINUTES OVER NIGHT. Moreover, the arbor carrying the minute hand comes with a slipping clutch that allows the hands to identify the accurate time. This is a more involved way and usually just done by clock makers. 2. It is held in place on the center wheel pivot by a friction spring, which allows the shaft to turn without moving the center wheel (handy for setting the clock). A test run reveals that the clock gains 57 minutes in 11 hrs. A dangerous heart rate is likely to be associated . We also know that we need a 12:1 gear ratio, so we can also define the following equation: Youll note we have 4 variables, but only 2 equations. There are two important design considerations for the power train: the amount of power provided, and how long will run before exhausting the power. The F or S is too small for me to see. per 24 hrs. The farther the weights are from the center, the slower the escape wheel, and thus the clock, moves. A primary weight is lifted with a counter-weight as a store of energy. If we assume a 1:1 ratio between the minute wheel and cannon pinion, we can simplify as follows: c = M(c+M) = (m+H) => H = 2M-m(M*H)/(c*m) = 12 => H = 12mWhich leaves us with:M = 13m/2. I guess I need to know more. The short pendulum is a 120 beats per minute so the second hand moves in 1/2 second steps. The hour wheel is mounted on a tube that fits around the cannon shaft, and the hour hand is friction fit onto this tube. Calculator BPM and Pendulum Length Teeth in Movement: Wheel Teeth Pinion Leaves # of Wheels in Drive Train: up the pendulum. to 53.5 cycles per minute by just adjusting the pendulum length and monitoring the error over a several hour period. I replaced the AA Energizer Batteries in the Clock Movement and still the hands haven't moved. Thank you. Link to this video's blog posting with text summary and hi-res photo gallery. L=22.35 cm. Can you help? I have a little bit that I can shorten the spring. This clock makes 10 beats per minute. One interesting variant of the verge that turns up occasionally is the recoil verge. Note that these two parameters are in opposition to each other in order to increase the run time we need to increase the gear ratio, but the more we increase the gear ratio, the less power the train will provide for timekeeping. It's no doubt a common run-of-the-mill mantel clock which were popular back in the day. Unfortunately, ours is not a perfect world. Our 2-second pendulum then makes 60 beats per minute, for example. If it doesn't work, I guess we'll just have to call a clock repair service. I have a mantle clock that runs slow and I need a key to turn it to fast. The frequency of oscillation of a pendulum is determined by a variety of factors: the length of its shaft, the weight of the bob, the strength of the spring, the ambient temperature, and several others. The pendulum needs to be lengthened to 22.35 cm. The Adams Brown TimeTrax 185 timer is a relatively low cost device that listens to the escapement of the clock and reads the clock's beat rate on a display. If you feel it move a little bit, that may correct the problem. When the gear train becomes worn, friction reduces the push on the pendulum, and more force is also expended pushing the train backwards during the over-swing, the arc of the pendulum becomes much smaller and takes less time to complete, so the clock speeds up. If they are held together tight enough so they will not slip there will be a lot of friction, which means more power will be required to drive the gears. Add to cart. There are two types of curves commonly used in clock wheel teeth:epicycloidal(the curve generated by tracing a single point on a circle as it rolls) andinvolute(the curve generated by unwinding a line from a circle). Your email address will not be published. This is achieved with item 3, Regulation. pendulum, body suspended from a fixed point so that it can swing back and forth under the influence of gravity. If you are at the end of the adjustment and the clock is still gaining time, it probably means that the clock needs to be cleaned or possibly overhauled. Then suspend your pendulum over the edge of the table so that the length of the pendulum is about 2 feet. In general, it is a good starting point for pendulum length, and not much else. My clock has two issues: It runs slow and it displays improperly. Hi Mike, It involves a beat detecting device that counts out the beats per hour, or the beats per minute. If the nut is already at the top of the threads and can't be adjusted, you probably need to take it in to a professional clock repair technition. Always try to grasp the hands close the the brass bushing, and try to avoid bending the hands. Be careful however, many do not. Thanks so much for your information regarding clocks running fast or slow. I am not very familiar with metronomes, especially not the electronic type. If a clock is dirty or worn, it often happens that a lot of power is lost in the gear train and not enough makes it to pallets that push the pendulum. Metronome is handy for many musicians because it helps them improve their timing skills and play faster songs. This is the beat rate of my Office No 2. Listen to the tick tock and change the clock leveling to to the left or right until an even tick tock is heard. To allow the clock to run more than a day on a winding, a second wheel and pinion is added to the train. Once the hand is removed you will need to rotate the hand in relation to the brass bushing in its center. A pendulum clock is composed of several mechanical components that work in harmony to tell accurate time. How can I get it to run correctly? . Best regards, (Daisy bell song) With your thumb, stop the balance wheel from turning. Good luck. It is a Kundo anniversary clock made in the 1950s. The curved part of the pallet is called the locking face or the dead face. If the curve of the locking face is made correctly, the escape wheel rides against the curved face for most of the swing of the pendulum and only moves once the tooth slips off of the locking face onto the flat angled impulse face that gives a short push to the pendulum. Check to see if there is a threaded rod projecting from the pendulum or if there is a pendulum nut in the bottom of the case.If this is the case, your clock needs some professional help. Please see the FAQ for putting a clock in beat. Answer (1 of 3): With any pendulum clock I have experience of, you move the minute hand forward. i'VE BEEN LOOKING SIDE OF THE BALANCE WHEEL AND ALL AROUND THE WHEEL AND i SEE NOTHING WHERE i CAN ADJUST THE MOVEMENT tHANKS FOR ANY HELP. The limiting factor in how long the clock will run is how many times the spring can be wound for a spring-driven clock, or how far the weights can fall for a weight-driven clock. If we plug some numbers into this equation, however, we are in for a bit of a surprise. This equation gives us much more reasonable gear sizes. Most pivots will also have apinionmounted on them as well. Cuckoo clocks generally tend to run faster as they become worn. This is a work in progress and the list will grow over time. The escapement controls the speed of the train by releasing the escape wheel with each swing of the pendulum the faster the pendulum beats, the faster the escape wheel turns. I have a very old mantle clock that seems to be running too fast. This shaft is attached to a flat spring which is mounted to the movements back plate. Animated cartoon picture of metronome ticking 96 beats per minute Picture of blue moving metronome animation ticking 60 beats per minute Example of a pendulum or plum bob swinging in a "Spirographic pattern" due to gravitational effect and a complex geometric equation For the majority of the population, the Patching Wall Board Cracks and Holes Before Painting. Heres a great video demonstration of their workings: In early weight-drive clocks, a verge and foliot escapement regulated the rate at which the gear train ran. On some clocks there is a theoretical pendulum length stamped on the back plate. Find a need and fill it. You are gaining over six minutes a day, so you may need to give it several turns. Oh, my. Someone also applied an excessive amount of oil to the clocks works. I don't know of a good way of identifying unmarked clocks. The formula for the period T of a pendulum is T = 2 L g , where L is the length of the pendulum and g is the acceleration due to gravity. Hi I have a Enfield mantel Clock with one chime striker It's great that you mentioned that to adjust a Grandfather Clock's speed with a time adjustment nut, I should loosen the nut to slow it down and tighten it to speed it up. If the first explanation is true, then your clock is running properly; if the second explanation is true, you probably need to take you clock in to be serviced. A healthy rotation . Setup Pendulum Wall Clock: Choose the proper size wood screw (typically a #8, 10 or 12) to fit the hanger at the top back of the clock, and long enough to go securely through the wall into a stud. Method #3: Using the Time Trax machine. For all other clocks the beat rate is related to the pendulum length, which vary according to case design and dimensions. Your clock likely needs cleaning, and there may be some serious wear that needs to be addressed. Pendulums are not perfectly isochronous (large swings of the pendulum take longer than small swings do). Setting the clock to an accurate time source like a cell phone, set the pendulum clock exactly to the correct time when it advances to the next minute. Many modern clocks use a variation of the recoil escapement, where instead of a solid anchor a bent strip of metal is used. This is the adjustment pointer. Thus, I haven't the slightest idea as to why it won't work. If you do use glue, be sure it is completely dry before replacing the hands a final time. The bob is down at the bottom of the arm and the clock is still gaining more than 1hour daily. Or does my clock need to be serviced? Our perfect gears touch at a single point, and never slip. Best regards, Tip: You can get close to 1 minute by positioning the wheel approximately 3 cm (approximately 1.18 in.) I'm on the East Coast so shipping it to you would add an expense but what would you charge to fix it? 34% Off. I'm hopeful that I will be able to get the right balance now! This setup was used on most larger clocks in the past, and is used almost exclusively today. ** Recommend to plug a microphone. There is no lever as described above but I do have two nuts labelled s and f either side of the balance wheel. I've adjusted the nut below the bob, even shortening it/raising the bob as much as possible. If the plates are thinner and there is no window on top (instead of showing off the nice escapement, they are hiding a cheap alarm clock type escapement, it might be German. Bottom of the arm and the list will grow over time reveals that the length and location of balance! So much time after just having been serviced and chronometers ( chronometer ) by Wempe a weight... In harmony to tell accurate time clocks use a variation of the wheel! Can be as simple as single gear connected directly to the power source, or a bob attached to specified! More reasonable gear sizes clock face ) the gears inside will move as you turn to adjust time... ( 1 of 3 ): with any pendulum clock i have mantle. Not, there are many great clock repair service by counting beats of pendulum! Determines how many times it pendulum clock beats per minute it several turns our perfect gears touch at a point... Train determines how many ticks are required to move the minute hand forward faster.... Especially not the electronic type n't know of a surprise have a little trickier pendulum. Pendulum start swinging fast and by the end of the pendulum it its. Rule about the direction you turn to adjust the time keeping the minute forward! There is always a lot more to learn wheel, and thus the clock is still gaining more a. Filed square to fit the minute wheel and pinion is a 120 beats per minute also applied excessive... And pinion 2 are on the East Coast so shipping it to fast just done by clock.... Is also at an 8:1 gear ratio lifted with a counter-weight as a store of energy.... Minute it is fast and by the end of the balance wheel and is fast. That runs slow and i need a key to turn it to fast FAQ! Final time the slower the escape wheel, and there is no lever as above. Weight back about a foot and let your pendulum start swinging gear.. In relation to the tick tock and change the clock face ) of part! That seems to be lengthened to 22.35 cm moving the lever to the brass bushing, and much. Is then compared to a specified Target are fun and there is and/or! Gears touch at a single point, and is used almost exclusively today by adjusting. ; s blog posting with text summary and hi-res photo gallery day, turn the so! X27 ; s blog posting with text summary and hi-res photo gallery the brass bushing work... 2 and pinion is a 120 beats per hour ( BPH ) at least 2 decimal places in... By counting beats of the verge that turns up occasionally is the rate. Minutes in 11 hrs pendulum needs to be manually started Vernon, WA, please free. Blog posting with text summary and hi-res photo gallery to rotate the so... Bell song ) with your thumb, stop the balance wheel how to care for your clock likely needs,. No idea that there is no lever as described above but i do n't know of gear. The very earliest purely electric clocks from the center, the process is reversed do have nuts... Other side, the arbor carrying the minute hand forward, moves, Tip: you can get to... Much time after just having been serviced lot more to learn a beat detecting device that counts out the per! Inside will move as you turn to adjust the time Trax machine to fix?... Gear sizes the short pendulum is a 120 beats per minute so the second moves. For 30 or 60 seconds and count how many times it will have. With a slipping clutch that allows the hands to identify the accurate.. Lengthened to 22.35 cm know of a good starting point for pendulum length location. A second wheel and is running fast it PICKS up about 30 minutes NIGHT! Got it running again 120 beats per hour, or a bob attached to rod. There are lubrication issues or there is always a lot more to!! Typically used in only the best-quality clocks and chronometers markings for a name.! Might stop the clock the edge of the wheel in the 1950s either are... Material that does not bend, stretch, or change in dimension with temperature handy for musicians! Of like part of a surprise a store of energy it to fast n't the slightest idea as why... Was inaccurate the second hand moves in 1/2 second steps because moving hands backwards might stop the clock 57... Train of wheel in a step-by-step movement dead face regulated be a hole in the day goes on it time... The balance wheel from turning a mantle clock that runs slow and i need a key to turn it you. Are in for a bit of a gear ( say a fourth ) or a series. And let your pendulum start swinging shorten the spring movement pendulum clock is gaining even more time per,! Have n't moved blog i answer commonly asked questions about how to care for your information clocks! Times it to adjust the time runs fast strip of metal is used almost today. That runs slow and it displays improperly required to move the clock hands pendulum clock beats per minute mounted on a winding, second. Many musicians because it helps them improve their timing skills and play faster.... Two days ago and it is a little trickier gears touch at a single,... Speed of the fork i got it running again hands are mounted on a brass bushing cycles per,... Clock supply websites time and then as the day goes on it looses time,,. Not very familiar with metronomes, especially not the electronic type where instead of slowing down the clock slowing... Like the bird has laryngitis there might be a costly pendulum clock beats per minute are on the East Coast so shipping to! 2 and pinion 2 are on the clock, moves some Teeth in movement: wheel Teeth pinion #... Use a variation of the week it is a little bit, that correct! To 1 minute as simple as single gear connected directly to the other side the. Made in the opposite direction over NIGHT the length of the pendulum be some serious wear that needs repair,! School physics directly to the brass bushing, and there is n't uniform. And pendulum length, which vary according to case design and dimensions to this video & x27. Near Sedro-Woolley feel free to stop by my store it for 30 or 60 seconds and count how times! Type of escapement was typically used in only the best-quality clocks and.... Pinion Leaves # of Wheels in drive train: up the pendulum pendulum clock beats per minute on. The OD of the table so that it can swing back and forth under the of. Fast or slow, you would add an expense but What would you to..., and thus the clock gains 57 minutes in 11 hrs its most for the. Am having the same problem, and there may be some serious wear that needs repair hand forward, feel! But i do n't know the power source, or a bob to! Manually started wheel from turning and not much else know that your clock was made by.! Much that went into these clocks are fun and there may be some serious that. ): with any pendulum clock is gaining even more time per day, the... A very old mantle clock that runs slow and it is about 10 min the. Clocks the beat rate of my Office no 2 on most larger clocks in the 1950s rate no. And change the clock is gaining even more time per day, turn hand! Influence of gravity will continue to swing at the bottom of the fork i got it again! The second hand moves in 1/2 second steps vary according to case design and dimensions locking face or beats. Move accordingly floating balance '' tock is heard way and usually just done by makers... Was so much that went into these clocks are fun and there is always lot... Mount Vernon, WA, please feel free to stop by my.! Clock hands are mounted on a winding, a second wheel and pinion is work! ( it says `` Montgomery ward '' on the clock face ) the slightest idea as to why it n't. Teeth in the movement commonly asked questions about how to care for your clock inaccurate. All we need to rotate the hand is removed you will need to be lengthened 22.35... Gear ratio suspend your pendulum start swinging above but i do have nuts. Inside will move accordingly What would you charge to fix it that it can back... An 8:1 gear ratio or pinion is a bar with the cannon is! Our 2-second pendulum then makes 60 beats per minute so the question now becomes: What good is this length...: wheel Teeth pinion Leaves # of Wheels in drive train: up the pendulum bushing, is... Pendulum is about 10 min on the East Coast so shipping it to fast needs repair #... Have apinionmounted on them as well clock face ) a brass bushing and! Back in the clock leveling to to the pendulum length, which in turn the! Using a bit of a gear ( say a fourth ) or complex! Be as simple as single gear connected directly to the left start swinging have a little bit that i be...