Changing a suspension spring on a Seth Thomas Model 2 Regulator Clock
A Closer Look at the Seth Thomas #2 Regulator Clock's Suspension Spring Replacement
The Seth Thomas #2 Regulator clock, a prized possession in its owner's collection, recently underwent a suspension spring replacement. This classic 19th-century wall clock, renowned for its precision, employs a suspension spring as part of its pendulum assembly.
The Need for Replacement
The suspension spring needed to be replaced due to age and wear, a common occurrence in antique clocks. The old spring was removed, and a new one sourced from Perrins, a Canadian supplier, was installed. The replacement process involved the careful removal of the movement, pendulum, and weight, followed by the installation of the new spring and the subsequent reassembly of the clock.
The Importance of the Suspension Spring
The suspension spring is a narrow, rectangular steel spring, mounted at the top of the pendulum rod inside the clock case. Its quality is crucial to the clock's performance, as it suspends the pendulum rod, allowing it to swing freely and regulate the clock's movement. The new suspension spring has been installed, and the clock is now running well, with slightly more amplitude in the pendulum swing than previously.
Design and History
The Seth Thomas #2 Regulator dates from the late 19th century, produced as part of Seth Thomas' line of regulator wall clocks designed for accuracy and durability. The suspension spring mechanism evolved as an improvement over earlier pendulum suspensions, with Seth Thomas incorporating steel flat suspension springs to provide better elasticity, reducing friction and wear, which enhanced accuracy and longevity.
Production of the #2 Regulator with its suspension spring continued roughly from the 1870s to the early 20th century, with various refinements in the spring's metallurgy and mounting design. The clock's lower section of the case was redesigned in 1922, allowing it to be dated between 1922 and 1929.
A Unique Piece
What sets this particular Seth Thomas #2 Regulator apart is its mahogany finish, an uncommon feature for this type of clock. The clock was purchased in the fall of 2018, and since then, it has been keeping excellent time. The hour hand and second's hand have little space between them, by design, and what initially took minutes to adjust now took over an hour. The clock will be scheduled for a full servicing in the next month.
The pendulum's action has been observed after leveling the clock case on the wall, and the clock's accuracy and longevity are a testament to the quality of the replacement suspension spring and the careful restoration process. The Seth Thomas #2 Regulator continues to stand as a shining example of precision engineering and craftsmanship from the 19th century.
- Vintage clocks, such as the Seth Thomas #2 Regulator, often require the replacement of antique clock parts, like the suspension spring, due to age and wear.
- Home-and-garden enthusiasts cherishing antique and mechanical clocks can find replacement clock movements, like the one from Perrins, to restore the smooth operation of their prized possessions.
- The new suspension spring in the Seth Thomas #2 Regulator has not only improved the clock's performance but has also expanded its lifespan, enhancing the owner's lifestyle and enjoyment of the unique clock design and history.
