Repair Of Stop Clocks
The repair of stop clocks, a task demanding a combination of technical prowess and meticulous attention to detail, involves a nuanced understanding of horological mechanisms. Addressing intricacies in timekeeping devices necessitates expertise in diagnosing and rectifying issues with gears, escapements, and balance wheels. The skilled horologist must adeptly navigate the labyrinth of intricate components that govern the precision of stop clocks. This process demands a fusion of craftsmanship and technical acumen to restore these timepieces to their optimal functioning. Delving into the intricacies of stop clock repair entails a thorough examination of the escapement’s performance, synchronization of the gear train, and meticulous calibration of the balance wheel. The restoration of these timekeeping instruments demands a delicate dance between precision engineering and a keen eye for detail, ensuring that every cog and wheel harmoniously contributes to the accurate measurement of time.
Stop clocks are devices for indicating time duration for the occurrence of two events after a passage of time. They are usually powered by batteries and they measure time in unit of seconds. Most clocks stop working as a result of the inability of the main spring to make a complete revolution. Also problems that do arise in clocks and cause it to breakdown include worn gear teeth, pendulum friction, and sympathetic vibrations among others.
To effectively carry out repairs on stop clocks or other clocks, simple maintenance should be carried out. This includes clearing and oiling the parts of the clock mechanism. In the repair of the stop clocks the clearing and oiling procedure was carried out whereas in the others, simple forgoing of metal drips was done and fitted into the clock to ensure they start working.
The total cost of the material for repair of the stop clock is N2, 000 while the labour cost is N5, 000 to bring the cost of the project to a total N7, 000 certain guideline and recommendation were made to ensure a lasting usage of the stop clocks. References were made from various textbooks and information was sourced from the Internet to help in the repair of the clocks and researches in this project report.
Title page
Letter of transmittal
Approval page
Prefaced
Signature page
Dedication
Acknowledgement
Abstract
CHAPTER ONE
Introduction
CHAPTER TWO
Literature review
CHAPTER THREE
Repair procedure
CHAPTER FOUR
Cost Evaluation
CHAPTER FIVE
5.1 Discussion
5.2 Conclusion
5.3 Recommendation
References
INTRODUCTION
Time is the dimension of the physical universe, which at a given place orders the sequences of events. It is above designated instance in this sequence, such as the time of the day. Time measurement consists in counting the repetitions of any occurring phenomenon, and if the interval between successive recurrence is sensible, in sub-dividing it. A time interval may be measured in two epochs or simply by counting from an arbitrary starting point as is done with a stopwatch.
HISTORY OF TIME KEEPING
The clock (device used in measuring time) is one of the most influential discoveries in the history of western science. The division of time into regular predictable units is fundamental to the operation of society. Chronology dates back to 8th century BC, Heisod’s writing confirmed that during this period, celestial bodies were used to indicate agricultural cycles.
Later, the Greeks such as Archimedes developed complicated models of the heavens celestial spheres that illustrated the wanderings of the sun, moon and the plants against the fixed position of the stars.
In the middle ages (roughly 500 CE to 1500 CE) technological advancement virtually ceased in Europe. Sundial styles evolved, but didn’t move far from ancient Egyptian principles. During these times, simple dials placed above doorways were used to identify midday and four tide of the sunlit day.
In the first half of the 14th century large mechanical clocks began to appear in the towers of several large Italian cities. These clocks were weight driven and regulated by a verge – and foliot escapement. In 1656, Christian Huygens, a Dutdi Scientist, made the first pendulum clock, regulated by a mechanism with a “natural” period of oscillation. In 1671, William Clement began building clocks with the new “anchor” or “recoil” escapement, a substantial improvement over the verge because of its pendulum. There were other improvements made by various scientists on the clock over the last 300 years before we had the modern day clocks.
ESCAPEMENT
This is basically a medianism in which a toothed wheel engages alternate pallets attached to an oscillating member. The escapement is found principally in time pieces but may also be employed where never oscillating motion is required.
The escapement of a clock is the part of the clock that ensures accurate time keeping. Many escapements have been designed among the most successful are: the verge escapement, anchor escapement, deadbeat escapement, Grasshopper escapement, Electro-mechanical escapement; often-required in different clocks.
Some forms of escapements include true escapement, Runaway escapement, turned escapement and so on.
Repair Of Stop Clocks:
Repairing a stop clock, also known as a stopwatch or chronometer, can vary in complexity depending on the specific issue it’s facing. Here are some general steps to help you troubleshoot and potentially repair a stop clock:
Note: Before attempting any repairs, make sure you have the necessary tools, skills, and knowledge of the specific stop clock model you’re working on. If you’re unsure about your abilities, it’s best to consult a professional watch or clock repair expert.
1. Diagnose the Problem:
Identify what’s wrong with the stop clock. Common issues may include a stopped movement, a broken hand, or a malfunctioning start/stop mechanism.
2. Gather Necessary Tools and Materials:
You’ll need precision screwdrivers, tweezers, magnifying glasses, and a clean, well-lit workspace. If any parts need replacement, ensure you have the correct replacement parts.
3. Disassemble the Stop Clock:
Carefully open the stop clock’s case using appropriate tools. Take pictures or make notes of the disassembly process to aid in reassembly later.
4. Inspect the Movement:
Examine the internal components for any visible damage or wear. Look for broken gears, bent hands, or any loose or detached parts.
5. Clean the Movement:
Dust, dirt, and debris can affect a stop clock’s performance. Gently clean the movement using a soft brush and a cleaning solution designed for clock mechanisms.
6. Lubricate the Movement:
Apply a minimal amount of clock-specific lubricant to the pivot points and gears to ensure smooth movement. Avoid over-lubrication.
7. Replace Damaged Parts:
If you find any broken or worn-out components, replace them with the appropriate replacement parts. This may require sourcing parts from a watch or clock supply store.
8. Reassemble the Stop Clock:
Carefully reassemble the stop clock, following the reverse order of disassembly. Refer to your notes or pictures to ensure everything goes back together correctly.
9. Test the Stop Clock:
Wind the movement if necessary, set the hands to the correct time, and test the start/stop mechanism to ensure it’s functioning properly.
10. Calibrate if Needed:
If the stop clock does not keep accurate time, you may need to adjust the balance wheel or regulate the movement to improve its accuracy.
11. Final Inspection:
Check the stop clock for any issues, ensure it’s keeping time accurately, and that all functions work as expected.
12. Case and Clean:
If applicable, clean and polish the case of the stop clock, making it look as good as new.
13. Consider Professional Help:
If you encounter difficulties or lack the necessary skills, it’s advisable to consult a professional watch or clock repair specialist to avoid causing further damage.
Repairing a stop clock can be a delicate process, and it’s crucial to handle the components with care. If you’re unsure about any step or the nature of the problem, seeking professional assistance is the safest course of action to preserve the integrity of the timepiece.