Gilbert tambour clock with Normandy Chime – movement servicing

This Gilbert tambour style mantel clock is model 2038 with a bim-bam strike or what Gilbert called a Normandy chime. The model number along with the words “Normandy Chime” are stamped on the bottom of the case. Gilbert called this the “Normandy Chime” as it was reminiscent of the old bells of Normandy (Corneville) in France. In terms of nomenclature within clock circles, calling it a “Chime” certainly adds to the confusion as this would be considered a striking clock rather than a chiming one.

Whoever did the past bushing work chose to avoid the motion works area, and for good reason

The Movement

And now to service the movement.

Dis-assembly of the movement is done in the conventional manner with the exception of two items. Both the striking disk (upper arrow) which runs off the cam wheel and the passing strike L bracket (lower arrow) which runs off the centre cannon are friction fit and must be pulled off beforehand to work on the movement. I don’t have a puller but two small screwdrivers positioned across from each other will lift the parts off with minimal effort. Do not polish the ends of these two rear pivots.

Arrows showing striking disk and passing strike L bracket

A prior examination of the movement revealed that it is generally good shape. Overall, the lantern pinions are in good condition with minimal wear. There has been extensive bushing work completed in the past. I see six replacement bushings on the back plate and seven on the front for a total of thirteen which suggests that there was a lot of wear. They are all in very good condition which tells me that the work was done fairly recently.

It also tells me that whoever did the past bushing work chose to avoid the motion works area and for two reasons. It is a tough one to fix because there is so little brass to work with and there is not a lot of torque on this wheel so it can be left as-is.

Although the following photo does not show it well, there is a lot of play in the bushing hole. This is the only one that is addressed in this servicing because I wanted to ensure good meshing of the motion works gears.

To address the motion works bushing I sought advice from my colleagues at the NAWCC forum site with comments ranging from doing nothing to immediate replacement. The best advice came from a member who suggested I install a smaller diameter bushing and broach out the hole to fit the pivot and that is exactly what I did. A #46 Bergeon bushing was chosen with a diameter of 3mm and an inside diameter of 1.30mm. The pivot is 1.48mm and the result is a side wall that is about 0.80mm. This should allow the gear to mesh nicely and since there is not a lot of torque on this gear the fix should last a long time.

Re-assembling was straightforward. There are no helper springs on this movement so there was no tension pushing on the levers. The only adjustment I had to make was to pull the movement slightly apart to correctly align the stop pin to the stop lever so that the movement strikes as it should.

Arrow showing stop pin (my healing thumbnail from a mainspring that let go)

Since the movement has a Normandy chime the striking hammers are located outside and to the bottom of the movement.

Striking hammer assembly for Normandy Chime

The final process in re-assembly is to attach the hammer mechanism. But before doing so two parts are re-attached, the strike wheel and the L bracket which are pushed back into place. Once in place they can be moved slightly to sync the hourly and half hour strike.

Some folks give Gilbert movements a bad rap but they are not much different than a Sessions, or similar inexpensive movement of that period and the fact that this one is still functioning after over 90 years has to say something for its engineering.

March 28, 2019

100,000 clock blog views – onward and upward

100,000 views, Wow!

In the late spring of 2015 I attended a workshop on WordPress blogging at the local community college. I was impressed with the power of blogging. I had already begun collecting antique and vintage clocks and so, it was a good time to begin a blog and share my horological interests and experiences. This was my very first post 3 1/2 years ago.

The first few months were very discouraging. I am sure that those of you who are bloggers know what I mean. It takes time and patience to build an audience and it also takes time to build a ranking on various search engines. I was getting very few page-views, I struggled with the content and tried to envision what my audience would like to see but more importantly what I wanted to convey in my blog articles. I never considered myself a stellar writer but I was enthusiastic and I wanted to give it my best shot. I observed what other bloggers were doing, what made their sites engaging, took some tips from WordPress and other online sources and adopted a style that suits me.

In the fall of 2015 there was an encouraging uptick in daily page-views. I also began to realize that I had to not only appeal to those with a modest interest in antique clocks but those with a deeper knowledge. My blog was never intended to satisfy expert horologists and those in the clock trade though I don’t mind if they drop by from time to time.

I have received many comments. Some offer suggestions and advice on projects I am working on while others are looking for direction on their particular clock problem. I provide whatever assistance I can.

Installing a new clasp on a Pequegnat Bedford

I graciously accept any criticism because that is an important part of my growth as a clock repair person.

Stats – the lifeblood of a blog

Like it or not, statistics or analytics as Google calls it, are the lifeblood of a blog. The best day was in January 2019 when I hit 267 page-views. However, on average I receive 100 daily page-views and about 800-1000 page-views per week. I have been viewed in 100+ countries and the top 6 viewers are in USA, Canada, United Kingdom, Australia, South Africa and Germany. I am encouraged by the steady rise in interest from mechanical clock fans around the world and share their enthusiasm.

I also discovered that writing articles well in advance and scheduling specific publication dates really helped with planning particularity when I am vacationing and cannot find the time to write.

My basement shop where I work on clock case restoration

Yes, there are days and months when the stats dip a bit but that only encourages me to take a second look at article content, learn to explore new areas of interest and make the learning fun. My regular features, Tick Talk Tuesday, Crazy Clock Ads and What Is This Thing For look at the lighter side of clock collecting and repair.

If you are new to my blog, welcome. There is plenty to read. If you are a regular viewer please share your views and comments and if you have any ideas for future articles let me know.

February 20, 2019

FMS Mauthe “Horse Crown” wall clock – servicing the movement

Most refer to the name “Horse Crown” when describing this clock and it is easy to see why. Many would also consider it a Vienna Regulator style of clock. I have been putting off servicing this movement for a while and a long time has passed since it was properly serviced. So, let’s get started. First, some background.

The clcok was complete save for a missing bottom centre finial. I installed a new one shorty after I bought the clock

Clocks such as these are often missing not only a finial or two but the crown and other parts so this clock is in good condition.

Year it was made and a history of the company

From my research, the trademark on the front plate tells me that the movement was made between 1895 and 1914 though the exact year of manufacture is unknown. Mauthe trademarks are very distinctive and from the trademark design, one can place the clock within a specific period of time. Unfortunately, the production number on the movement is a mystery as there is no known database for Mauthe clocks.

Trademark, production number, length of the pendulum (34cm), BPM (116) & patent number

Mauthe clocks have had a long and illustrious German history. In 1844 Friedrich Mauthe and his wife Marie founded the company in Schwenningen to produce watch parts. They were very successful through the years and diversified in several areas but after 1946 following the production of wrist watches the company gradually fell into decline.

This clock reminds me of what Forest Gump once said, “life is like a box of chocolates, you never know what you are going to get”

Now let’s open it up

The clock hung on my living room wall for three years. When I bought it I knew that it would eventually require servicing but there were so many other projects on the go, it could wait. The clock ran for several months at a stretch and there were months that the clock did not run at all. So, now that other projects have been completed the time is right for a thorough servicing.

Mauthe wall clock with new bottom centre finial

Forest Gump once said, “life is like a box of chocolates, you never know what you are going to get”. When inspecting any antique clock movement for the first time I have learned to expect just about anything.

As I move through any project my intent is not necessarily to correct mistakes of the past since they are an important part of the clock’s history but to ensure that past repairs do not cause me grief in the future. If it is a crude but functional and sturdy repair, I will generally leave it alone. I have learned that past repairs are part of the history of the clock.

When I took the movement out of the case I discovered something quite interesting. The dial is not original. Yes, it is a Mauthe dial but not for this clock. Two brass strips are fastened to each side of the front plate to accommodate a replacement dial. The added holes drilled into the side braces tell me that it once has a slightly smaller dial.

I am sure that those of you who are collectors have experienced the dilemma of identity

I am sure that those of you who are collectors have experienced the dilemma of identity. When I bought my first Vienna Regulator I began to realize that many parts were replaced over the years and it made me wonder what is original and what is not. It as an unwinnable argument and I have learned to accept the notion that it may not matter to me or to a casual observer who would not think of questioning whether a clock and its parts are original.

Two extensions, soldered to the sides to accommodate a replacement movement

But, let’s move on. A repair was made to the strike hammer which appears to have broken off at one point. Again, a rough but solid repair.

Hammer repair, you can see a pool of oil on the pivot to the left

The clock was coated in oil which was dripping down the plates. However, in terms of its general condition, there is surprisingly little wear. Perhaps the liberal application of oil had a hand in preserving the movement but I suspect that it did not run much over its life.

Mainspring servicing using the Olie Baker spring winder

The mainsprings are enclosed in barrels. I opened up the spring barrels to service the mainsprings. The mainsprings are in good shape with no evidence of rust. They cleaned up nicely. Broken mainsprings in German clocks can be problematic. Severe damage can result in missing mainspring barrel teeth and broken lantern pinions when the mainsprings let go, a challenge for any clock-maker.

The movement was disassembled and the parts were cleaned in my L&R ultrasonic cleaner. The springs and barrels were cleaned separately. All parts were washed in warm water and dried. Finally, the pivots were inspected and polished. Although this movement has a count wheel between the plates with levers much like an American time and strike there are no annoying helper springs to frustrate the re-assembly process.

After lubricating the mainsprings with Keystone Mainspring Lubricant, I put the movement together without the levers to check end-shake, meshing and the condition of the pivot holes. Two lantern pinions had some flat-spot wear but not enough to warrant replacement. Two pivot holes are slightly enlarged on the third and fourth wheel strike side but not so bad that they need immediate attention. If I were in the business of repairing clocks for a living I would bush those two and repair the lantern pinions.

Parts are cleaned & positioned, ready for the front plate

To reassemble the movement I secured the bottom front plate nuts to the back plate and then positioned the pivots into their holes working upwards. Once the pivots are in place on the strike side I attach the third nut loosely and continue guiding the pivots and the two lever assemblies in place. Unlike American movement which have larger pivots, care must be taken not to force the relatively small pivots into their holes.

Much like an American time and strike movement, the cam lever must be in the deep part of the cam while at the same time the count hook is in the deep slot on the count wheel. I made a note of the position of the stop wheel beforehand and in so doing managed to correctly position it on my first attempt.

I generally run a movement for an hour or so without lubricant to determine if everything is functioning properly. No point in oiling the movement repeatedly if it has the be dis-assembled to correct an issue. Once I am satisfied that the movement is running as it should, I apply oil to the pivot holes.

Having the movement out gave me an opportunity to clean up the case, paint the gong mount and movement rail and give the entire case two coats of shellac (traditional 1 lb cut). The movement is now reinstalled in the case.

With respect to my comments concerning the pivot holes and lantern pinions, putting the movement on a shorter 2-year cycle will enable me to monitor wear.

January 31, 2019

Seth Thomas Regulator #2 wall clock

During my travels through Ontario, I acquired a Seth Thomas Regulator #2, one of my newest additions. I discovered this clock in Bloomfield, a quaint village just minutes from Picton, a major hub in Prince Edward County renowned for its many wineries.

I first spotted the clock during a summer visit to the local antique shop and deliberated over the purchase for quite some time before finally deciding to take the plunge in the fall. These clocks are a rare find, and with the price being right and the clock in excellent condition, it felt like an opportunity I couldn’t pass up.

Perhaps best known as one of the most common regulator clocks in America, the Seth Thomas Regulator #2 was a fixture in many railway stations across the country during the last century—a testament to its accuracy and dependability. Robust, precise, well-engineered, and reliable, this timepiece was manufactured by Seth Thomas from 1860 to 1950, an impressive production run of 90 years. Few clocks can boast such longevity. It is an iconic American clock, and every serious clock collector aspires to own one.

A classic style, the #2 changed very little over the years. However, certain design characteristics help date the clock. The following identification guide describes dial and case characteristics that will aid in identifying the approximate year the clock was made.

_{Click here for the larger guide; http://www.clockguy.com}

The most distinctive visible characteristic is the design of the base.

Aside from the distinctive base, all but the earliest #2s had the pendulum mounted in the rear with “T” hands.

The chart also lists the limited run reissue in 1976. Most Seth Thomas aficionados would agree that while the reissue is a handsome and well-made clock that is a testament to the original it is not in the same realm as an authentic Regulator #2 and the prices for these versions reflect accordingly. However, those who have the reissue seem to be pleased with their acquisition.

ccording to the chart, my clock was made between 1922 and 1929 and features a base reminiscent of the earlier 1860 version of the #2. It has Arabic numerals with spade hands, and the bow-tie connecting the wooden dial bezel to the drop is a single piece (earlier versions featured a three-piece bow-tie). The clock includes a second hand positioned 2 inches above the center cannon; however, it is not a true second hand, as it runs off the escapement and takes 80 beats to complete a “minute.”

Measuring 36 ½ inches in height, the clock is veneered in mahogany. The movement is stamped with “77A” in the bottom right corner, with the letter “K” underneath, but it bears no other markings. While some versions of the 77 movement have lantern pinions, this one is equipped with cut pinions.

Are there issues with this clock? Certainly, it is over 90 years old! There is minor loss on the dial, no label, a finish that has lost its luster and paint splatter on the top of the case not visible from the front. Is it really so hard removing a clock when painting a room!

Is it Perfect?

I brought this clock from Ontario to Nova Scotia by car. Removing the pendulum for transport is not a particularly simple process but if you are familiar with the pendulum arrangement on a typical weight-driven Vienna Regulator this one is no different. Like Viennas, the pendulum is hung behind the movement.

Both the weight and the pendulum must be removed for transport. There is many a story of broken glass when weight and pendulum are free to move around inside the case. To remove the weight, simply unhook it from the cable wheel.

_{There are minor issues with the dial-face}

To remove the pendulum the movement must be taken out. First, the hands are taken off. In this version, the minute hand is held in place with a nut. Older ones have a pin. There are 8 small screws that hold the dial in place. Once the dial is removed, two larger screws on the wooden second-hand rail are removed. Four cylindrical column posts hold the movement in place. Unscrew these beginning with the bottom two and lift the movement out. Once the movement is out, the pendulum can be unhooked from its suspension spring. The entire process takes less than five minutes.

The trapezoid 77A movement with maintaining power in this clock looks clean. There is evidence of having been worked on in the past as there are 4 punch marks around the winding arbour to close the hole; a common practice in the past to close a pivot hole. Otherwise, the movement looks very good.

Getting the clock to run reliably was a challenge and it took a week or so to sort it out. The clock would run for a few minutes and stop.

Following a process of elimination, I removed the movement, inspected it for wear, found very little, oiled the pivots, and returned the movement to the case. I installed the dial, then the hands. The clock would run for a few minutes and stop. I removed the hands and dial; left the dial off but reinstalled the hands. Still, it would run only a few minutes. I then took the dial and hands off. I ran the movement for four days to eliminate any underlying issues and to convince myself that the problem lay in the positioning of the hands. The problem was definitely with the positioning of the hands.

On day five, I put the dial back on, then the second hand ensuring that there was sufficient clearance between the second hand and the face. Next, I put the hour hand on the pipe and pressed it in far enough to clear both the second hand and the minute hand. I attached the minute hand, inspected it for sufficient clearance, and screwed it in place. I started the clock.

Success at last! Regulating the clock is fairly simple and is achieved by turning the rating nut on the bottom of the pendulum. This clock must be level and in beat to function properly.

I used Murphy’s Soap to clean the grease and grime from the case. I chose to leave the paint splatter intact, as it adds a bit of character to the clock. Additionally, I polished the brass weight and pendulum bob to restore their shine.

This clock boasts a striking appearance and a rich, illustrious history, making it a perfect addition to the front entrance of our home. Unfortunately, its journey over the past 90+ years remains a mystery.

The question of whether it qualifies as a “true regulator” is a debate for another time.

December 8, 2018

New Haven – servicing a 30 hour spring-driven clock movement

This is a 30 hour or 1-day New Haven Ogee shelf clock. 1875-80 seems to be the approximate period of manufacture for this smallish Ogee clock. The case measures 18 1/2 by 11 3/4 inches (47cm X 30cm) and the hour strike movement measures 3 1/2 by 5 inches (9cm X 12.7cm).

So, its a bit of a miss-match. Imperfect but attractive just the same

This 30 hour New Haven Ogee shelf clock looks nice from a distance but closer inspection reveals a number of issues regarding the condition of the case. Although the sides panels of the clock are veneered, the front veneer has been stripped likely because of significant loss or damage. Crude chisel marks on the left front of the case suggest that the veneer in this section was tough to take off. This is unfortunate, but I have no intention of re-veneering any part of this clock. There is also veneer loss on the top right side. From a distance the entire clock actually looks good and the casual observer would not notice the difference.

It takes a#3 key to wind the clock. It is probably the only American shelf clock I have that uses a key that small.

The movement looks original to the case and there are indications that it has been worked on in the past. There are punch marks surrounding several pivot holes, an common old-style repair to close the holes.

The coil gong is a replacement and is in a slightly different location than the original gong judging from screw holes to its right. The gong is probably from an E. N. Welch or a Gilbert. The clock dial face is a recent addition and the access door knob looks like it is a later addition.

So, its a bit of a miss-match. Imperfect but functional.

The movement was dis-assembled and the parts cleaned in my recently acquired Quantrex 140 ultrasonic cleaner. The movement parts came out shining particularly the lantern pinions.

The pivots were in very good shape and polished up well with my Butterworth Bushing Polishing System that I use with my multi-speed Dremel tool. I decided to tackle only the worst bushing holes; the centre canon, back plate and the escape wheel bridge. Four bushings were also installed on second and third wheels, front and back plates.

Testing in the clock case rather than on a stand

Some consider 30 hour clocks as a hassle because they must be wound once a day but I am okay with that. This 30-hour Ogee clock runs very well, keeps good time and I am pleased with the servicing.

October 3, 2018

Waterbury 30 hour Ogee clock – servicing Part II

Waterbury OG clock — 30-hour Waterbury Ogee with a beautiful veneered case

This 30 hour Ogee clock was purchased in the fall of 2017. I was eager to add this clock to my collection as it is the one particular style of clock that I do not have. From my research on Waterbury clocks I determined that it was made in or around 1870.

I decided to turn the worn trundles inward and seal them with Permatex (medium strength thread-locker) so they are fixed rather than rolling; not ideal but reversible

While the case is in remarkable condition for the age of the clock the movement has suffered the ravages of time.

Simple 30 hour movement, top plate removed

Testing over the course of a day or so revealed that clock would not run for more than a few minutes. The movement was taken out of its case and inspected to determine what needed to be done to get it to running condition.

I expected punch marks and there were a number. In the old days clock-makers would attempt to address pivot wear by closing the pivot holes with a stake or punch. Not ideal but a common practice. Bushing work was definitely required. The pivots, on the other hand, were in very good shape and polished up nicely.

My first task was to address the bushings. Ten bushings were installed, 5 on each plate. The front bushing work included the escape wheel bridge, always a challenging spot to bush. Next I addressed the other serious wear issue – the trundles on all of the lantern pinions.

The trundles on the lantern pinions were in bad shape as you can see in the photo above. The wear seen here was identical on all 4 lantern pinions. Notched trundles were not what I expected.

The trundle work was certainly the most interesting part of the repair. My experience with lantern pinion work is zero. After some research the method I selected was to hand drill through the top shroud to release the worn trundles.

Drilling through the shroud to release worn trundles; I used a smaller bit than the one pictured here

After releasing the worn trundles I used 1.10mm pivot wire which is ideal for this purpose and matched the worn trundles precisely.

Test fitting of pivot wire before the wire is cut to proper length

I began with the fly. I drilled into the top shroud. I then cut 1.10mm pivot wire into the required lengths then rounded the ends with a cut-off disc on a Dremel. After the fly was completed I addressed two more lantern pinions in the same way. I staked the shroud ends to seal the trundles inside.

With three done the escape wheel lantern pinion was next and that is when I ran into a snag. The escape wheel shroud is reversed (see photo below), so I cannot drill into the top shroud without a lot of guess work. Using needle nose pliers I decided to turn the worn trundles inward and seal them with Permatex (medium strength thread-locker) so they are fixed rather than rolling. This is not ideal but it is reversible.

There does not appear to be a definitive answer as to whether the trundles should be free-moving or fixed although I suppose they are designed to roll with the gear teeth. At some future point the trundles on this wheel will need to be replaced.

The clock did not come with a pendulum bob so, a new one was attached. The suspension spring and leader was replaced to address a crimped spring that resulted in a wobbling pendulum bob. I used .09mm suspension spring in the correct length. The clock now runs well and it has completed a number of 30-hour cycles.

I suspect that this will be a clock that will not be run daily, the inevitable hassle of constantly winding a 30 hour clock but I am pleased that it is back in running order and I will ensure that is runs on special occasions.

January 2, 2018

Whoever did the past bushing work chose to avoid the motion works area, and for good reason

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This clock reminds me of what Forest Gump once said, “life is like a box of chocolates, you never know what you are going to get”

I am sure that those of you who are collectors have experienced the dilemma of identity

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Is it Perfect?

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So, its a bit of a miss-match. Imperfect but attractive just the same

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I decided to turn the worn trundles inward and seal them with Permatex (medium strength thread-locker) so they are fixed rather than rolling; not ideal but reversible

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