Category: American Clock Mainsprings
Many American antique clocks had mainsprings that were too strong when they were new. For many years, the so called “standard” mainspring size was 3/4″ by .018″ by 96″, and new mainsprings of this size will cause wear to the mainwheel teeth. In this section I give examples of better mainsprings to use for new replacements. It is best to keep the original old mainsprings in some cases, and I give examples of this, too.
Terry Clock Co., One-Day Walnut Shelf Clock
Seth Thomas Mahogany Adamantine Mantel Clock
Sessions “President No. 3” Tambour Mantel Clock
Gilbert “Black” Kitchen Shelf Clock
E. N. Welch Drop Octagon
Seth Thomas Round Top Mantel Clock
Seth Thomas Octagon Top Shelf Clock, 1860s.
New Haven Walnut Kitchen Clock
1940s Seth Thomas 8 Day Time and Strike Clock Movement
Seth Thomas Oak Kitchen (Shelf) Clock
Waterbury One-Day Walnut Cased Shelf Clock, ca. 1885.
Ansonia Walnut Kitchen (Shelf) Clock
Seth Thomas Cottage Clock with 8-Day Lyre Movement
Mainsprings for Seth Thomas 89C Clock Movement (6-18-10)
Measurement of Mainsprings for 8-Day American Antique Clocks, June 2010
Gilbert Tambour Mantel Clock with Bim-Bam Striking
Ansonia “Queen Elizabeth” Wall Clock in Oak Case
Waterbury 8 Day Walnut Shelf Clock, 1880s
Chauncey Jerome “Union” One-Day Shelf Clock, 1850s
Seth Thomas “Adamantine” Mantel Clock with “Ding Dong” Strike
New Batch of P-1956 Clock Mainsprings
Seth Thomas “Plymouth” Tambour Mantel Clock
Seth Thomas Office No. 6 Wall Clock ca. 1924
Seth Thomas Adamantine Clock Movement with Thin Time Mainspring
Seth Thomas Mahogany Adamantine Mantel Clock
Mainsprings for a Gilbert 1880s Parlor Clock
Original Mainsprings in a New Haven Long Drop Octagon Clock
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