RSSCategory: American Clock Mainsprings

Measurement of Mainsprings for 8-Day American Antique Clocks, June 2010

June 12, 2010 | By More
Measurement of Mainsprings for 8-Day American Antique Clocks, June 2010

Over the past three years, I’ve posted about mainsprings for antique American clocks. I started with a post on June 12, 2007 about a mainspring from Merritt’s Antiques. Most clock parts distributors offer a “standard” American loop end 8-day mainspring 3/4 inch wide by 0.018 inch thick and 96 inches long. These springs are too […]

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Last updated August 31, 2011

Gilbert Tambour Mantel Clock with Bim-Bam Striking

June 9, 2010 | By | 5 Replies More
Gilbert Tambour Mantel Clock with Bim-Bam Striking

I just repaired this Gilbert tambour mantel clock that was made around the 1930s. It has bim-bam strike on the hour and half-hour. Height 9 1/2 inches, width 21 5/8 inches. Dial time track 5 3/8 inches. The aluminum dial is labeled: Gilbert / 1807 / Made by Gilbert in Winsted, Conn., U.S.A. The following […]

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Last updated August 23, 2011

Ansonia “Queen Elizabeth” Wall Clock in Oak Case

June 7, 2010 | By | Reply More
Ansonia “Queen Elizabeth” Wall Clock in Oak Case

This beautiful wall clock called the “Queen Elizabeth” was made by the Ansonia Clock Company. It was introduced around the early 1880s and made until at least 1901. This model was available in black walnut, mahogany or oak; and had an 8-day time only or time and strike movement. The clock pictured here has an […]

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Last updated June 1, 2010

Waterbury 8 Day Walnut Shelf Clock, 1880s

June 4, 2010 | By | 1 Reply More
Waterbury 8 Day Walnut Shelf Clock, 1880s

I recently overhauled this Waterbury walnut cased shelf clock made around the 1880s or 1890s.This clock has a nice original painted dial. The hour hand is the original solid spade hand. The minute hand has been replaced. This clock movement is known for running on thinner than average mainsprings. Even with the weaker springs, there […]

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Last updated June 5, 2010

Chauncey Jerome “Union” One-Day Shelf Clock, 1850s

May 25, 2010 | By | 1 Reply More
Chauncey Jerome “Union” One-Day Shelf Clock, 1850s

This small shelf clock called the “Union” was made by Chauncey Jerome in New Haven, Connecticut in the 1850s. It is illustrated in Jerome’s 1852 and 1853 clock catalogs. The one-day time and strike spring-driven movement is stamped “C. Jerome / New Haven Conn / USA”. The label on the rear of the case says […]

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Last updated May 28, 2010

Seth Thomas “Adamantine” Mantel Clock with “Ding Dong” Strike

May 17, 2010 | By | 4 Replies More
Seth Thomas “Adamantine” Mantel Clock with “Ding Dong” Strike

Here is a Seth Thomas “Adamantine” clock with black and green marbleized finish (Adamantine is Seth Thomas’ patented celluloid finish that was made in many colors to imitate wood and marble). It strikes the hours on two brass bells, and strikes the half hour on the higher pitched bell. The clock was sold on March […]

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Last updated May 29, 2010

New Batch of P-1956 Clock Mainsprings

April 29, 2010 | By | Reply More
New Batch of P-1956 Clock Mainsprings

Two years ago, I wrote about the P-1956 mainspring from Merritt’s Antiques. This spring was ideal for many antique American clocks. My newest batch of these mainsprings (received late in 2009) are weaker than the first batch I had. When removed from their clamp, they open out to only 5 1/2 inches (my first batch […]

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Last updated May 8, 2010

Seth Thomas “Plymouth” Tambour Mantel Clock

March 22, 2010 | By | 4 Replies More
Seth Thomas “Plymouth” Tambour Mantel Clock

Here is another “Plymouth” tambour mantel clock by Seth Thomas (see this post for two others). This one does not have a date code, I estimate that it is from the early 1930s. It has a no. 89I movement that strikes the hours and half-hours on a coil gong. The movement has a code of […]

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Last updated March 22, 2010

Seth Thomas Office No. 6 Wall Clock ca. 1924

February 8, 2010 | By | Reply More
Seth Thomas Office No. 6 Wall Clock ca. 1924

The Seth Thomas “Office No. 6” is a wall clock in a rectangular wooden case. Time-only and time and strike versions were available. The earlier ones had a removable scroll top and a bracket base, but by 1924 it was being made in a plain case. This example looks similar to that in the photo […]

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Last updated February 8, 2010

Seth Thomas Adamantine Clock Movement with Thin Time Mainspring

December 20, 2009 | By | 4 Replies More
Seth Thomas Adamantine Clock Movement with Thin Time Mainspring

I recently repaired a Seth Thomas Adamantine mantel clock made around 1905. It has a No. 89 movement. This movement is very efficient in operation, due to the use of a deadbeat escapement. Even with a thin time mainspring, these movements typically take an excellent escapement motion. This particular example has thin, original mainsprings. Time […]

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Last updated June 5, 2010

Seth Thomas Mahogany Adamantine Mantel Clock

November 16, 2009 | By | 2 Replies More
Seth Thomas Mahogany Adamantine Mantel Clock

“Adamantine” was Seth Thomas’ trademarked name for a celluloid finish over wood. Besides the mahogany color shown here, it was made in black, white, green, brown, tan and other colors. These cases are durable, and can usually be polished to look very nice. Sometimes the colors fade with age. Adamantine clocks were made from about […]

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Last updated June 5, 2010

Mainsprings for a Gilbert 1880s Parlor Clock

November 1, 2009 | By | Reply More
Mainsprings for a Gilbert 1880s Parlor Clock

I repaired this Gilbert “Parole” shelf or parlor clock that was made about 1880. The walnut case is 19 1/4 inches tall. I polished the pivots and installed bushings (a previous repairer had punched the pivot holes to try to close them). The clock had its original mainsprings, both of which were marked “W. Barnes […]

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Last updated August 31, 2011

Original Mainsprings in a New Haven Long Drop Octagon Clock

October 22, 2009 | By | Reply More
Original Mainsprings in a New Haven Long Drop Octagon Clock

I repaired this New Haven long drop octagon clock. Some of the pinions had worn wires, so I replaced the wires in one pinion and reversed the wires in three. I polished the pivots and installed 13 bushings. The mainsprings appear to be original (they match in color and style and look old). Time mainspring: […]

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Last updated August 31, 2011

Mainsprings for Sessions Black Mantel Clock

October 22, 2009 | By | 2 Replies More
Mainsprings for Sessions Black Mantel Clock

I recently overhauled this Sessions black mantel clock from around 1903 – 1910. It was a routine overhaul including polishing the pivots and installing bushings. A previous repairer had installed two screw-in bushings (a no-no!). I replaced these with KWM size 4 American bushings. The mainwheels were made with Gilbert-style clicks, which are more robust […]

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Last updated August 31, 2011