Servicing a Sessions American No. 2 mantel clock, Part I

I am going to take you, the reader, through the process I follow when servicing a clock. There will be several posts in this series. I am not a trained expert in clock repair, nor do I do this for profit and have learned most of what I know through trial and error, careful study and of course, listening to the advice of many experts and newfound friends on the forum site at NAWCC.

If you into clock collecting you’ve probably seen one of these mantel clocks at one time or another in your travels. Literally thousands were made. This attractive little mission styled oak-cased time and strike mantel clock is a Sessions “American No. 2” dating from 1921 according to Trans Sessions book, page 121.

When I opened the back access panel to service the movement I discovered an inscription which reads, “Jim A. Kennedy, Nov 3/63, a clear, cold nite”. One can only imagine that on that particular clear, cold night, Jim A. Kennedy was doing some work on this lovely clock. It does not say where Jim lived but Jim, wherever you are and if you are still with us, your clock lives on.

Although this clock has been running steadily since I acquired it about two years ago, the time is right to put it on the workbench. American made clocks like this tend to run on and on despite requiring much needed bushing work and this one is no exception, but now it needs some loving.

I took the movement out of it’s case and examined it closely. Fortunately it has not been botched by poor repairs over the years that one sees from time to time. Things looked good, no surprises. Although no bushings have been installed on the top (back) plate there were five bushings that were installed on the bottom (front) plate at some point in this clock’s life, perhaps on that cold, clear evening in November. My initial inspection reveals that there is wear in some pivot holes and that six bushings must be installed on the back plate and of the five previously installed bushings on the front plate, two need to be replaced and at least one new bushing is required on the pallet arbor.

Although the movement appears clean at first glance it really is very dirty. This is an example of the sludge (indicated by the arrow) that has built up in this particular pivot over the years. There are other such examples on this movement.

top plate showing a build-up of dirt around a pivot hole — Top plate showing a build-up of dirt around a pivot hole

Once I tear it down completely I will be able to determine the condition of the pivots and other moving parts. I intend to clean the entire clock and clean/oil the springs as well as replace/install the aforementioned bushings. My first impression is that the mainsprings are in good condition. The clock easily ran eight days on a wind. The clicks are another matter. At least one looks like it needs replacement. Sessions clocks are notorious for their bad clicks but to put things in perspective the clicks have been in this clock likely since it was made (or perhaps 1961).

Time and strike movement with single hammer strike on a coiled gong

The escape wheel teeth may need to be filed but I will determine if filing is required once I inspect it more thoroughly.

escape wheel tooth tips — Escape wheel tooth tips

Safety first. The first task other than taking the suspension spring/rod/bob off the movement is to secure the mainsprings using mainspring clamps that are available at any clock supply store. Mainsprings can be very dangerous and it is important to contain their power when working on a clock. I always wear eye protection and leather work gloves before I let the mainsprings down with a let down key. Once you’ve released the clock from the ratchet by moving the retaining spring out of the way, the power of the spring is transferred to the let down key which allows one to gently release it until it is contained in the C-clamp. After the springs are restrained you can safely disassemble the clock.

The clock is now ready to be disassembled. Tune into Part II where I will post photos of the complete disassembly stage and report on what further work needs to be done.

September 20, 2016

So, my sister also loves clocks

After not having visited my sister in some time I was surprised to find that she is an avid clock collector. I must stress the word collector because although she appreciates the beauty of each clock she has acquired over the years how they run is somewhat of a mystery to her and that is just fine. While visiting her this summer three of her clocks were out of adjustment and it took no time (no pun intended) at all to get them running again. No sense paying someone to do it, that`s what brothers are for.

In my opinion the most interesting clock she has is a French time and strike bracket clock that has no visible markings yet appears to be over 100 years old. It is in beautiful condition with only a slight patina on the finish. I would love to have found out more about this clock but my stay was brief. Perhaps next time.

The next clock is one my sister absolutely loves and it is a great sounding Westminster chime grandmother clock she bought some 20+ years ago. This quarter chime clock made by Craftline Industries in the early 1990s has a Canadian made case with a German movement, likely by Hermle.

Next is a curiosity. When I saw the Sessions name on the dial I wondered why I had not seen this particular style of Sessions clock. Further investigation revealed it to be a six pillar Adamantine Seth Thomas case. The movement was clearly marked ST and as I said the case is certainly a Seth Thomas. So, why the Sessions clock face? Likely the original dial face was so badly marred as to be unreadable that the owner many years ago simply told the clock repair person to find another face, which he did. Since the replacement was a Sessions electric clock face he had to drills the holes to accommodate the winding arbors. Who would know! To those less knowledgeable it looks great.

Session Seth Thomas mantel clock — Sessions / Seth Thomas mantel clock

I found this little antique time-only Hamilton and Co. French-style carriage clock made in India (Calcutta) to be very interesting and so diminutive. Hamilton and Co. is probably the best known and most celebrated British clock maker in India. I would put this clock at around the 1890s. It probably needs a good cleaning since it is not in working order.

Hamilton and Co Calcutta — Hamilton and Co. Calcutta

I am not a huge fan of steeple clocks but this Waterbury clock is in very good condition save for a damaged right steeple tip. The Waterbury Clock Company is one of many 19th century Connecticut-based clock firms with a history going back to the 1850s though it closed is doors for good in 1944. More memorable are Waterbury wall and mantel clocks but like many makers of the day they had a successful line of steeple clocks.

Next is a New Haven time and strike tambour style mantel clock from about the late 1920s or early 1930s. Aside from the grandmother clock which my sister bought new the New Haven mantel clock was a wedding gift of her late husband’s parents and has been in the family ever since.

Lastly, this Chelsea ship’s bell clock is a polished beauty. A ship’s bell is used to indicate the time aboard a ship and hence to regulate the sailors’ duty watches. Unlike normal clock bells, the strikes of the bell do not correspond to the number of the hour. Instead, there are eight bells, one for each half-hour of a four-hour watch. Three bells, for example, would mean that a sailor would be 1 1/2 hours into a 4 hour watch. Each watch would take its turn with the essential activities of manning the ship’s helm, navigating and keeping a lookout.

I was quite impressed with my sister`s collection and each clock occupies a special place in her home. I find it facinating going into peoples homes and discovering the joy they experience in collecting, be it clocks in this case or anything for that matter. Collectors are truly unique people!

September 13, 2016

Sessions clock final thoughts

Sessions movement in the process of repair

Regular readers have followed my progress on this 1927 Sessions tambour style clock.

Better news this time. After installing 10 bushings, repairing the strike click, replacing the pendulum bob and suspension spring and reassembling and oiling the clock and the springs I am having excellent success regulating this fine old clock. On a full wind I am getting upwards of 9 days and typically eight days through the summer. Though it sits inside our cottage in Quebec it has suffered through all manner of outside weather including high humidity and cool nights and despite these conditions it has performed admirably.

Although originally intended as a cottage clock I will be taking this clock back with me and placing it in a prominent place in my home.

All in all a great learning experience and a satisfying result.

August 23, 2016

Sessions Beveled Number 2

Regular readers might have followed my progress on this 1927 Sessions tambour style clock.

After installing 10 bushings, replacing the pendulum bob and suspension spring and reassembling and oiling the clock and the springs I am now in the process of regulating this old clock. I am finding that despite all the work I have put into this clock, it will run for only 6 days and it does not seem to want to run the full eight day cycle. Perhaps there is other wear that I am not detecting or the springs are weak.

I wound the clock again this morning and we will see how long this cycle will go before stopping. Everything is synchronized thanks to Steven Conover’s helpful book on striking clocks. Is it a success since it was a non-running clock when I acquired it last fall.

July 16, 2016

Sessions Beveled No 2 results of bushing repair (video)

June 16, 2016

Sessions Beveled Number 2 Re-assembly

OLYMPUS DIGITAL CAMERA — Refinished clock case

This clock has been sitting on my workbench for a couple of months. It is an attractive little Sessions tambour style mantel clock, very popular in the 1930s. I spent a little time refurbishing the case, have had good success making it look presentable compared to when it first arrived. The case was marred and it looked like it had been kicking around in a basement or a busy street (LOL) for a number of years. After a thorough ultrasonic cleaning and polishing of the pivots it is time to re-assemble the movement.

It was very inexpensive clock and a great one to hone my skills in clock repair and case restoration. One of my tasks was to use it for bushing practice but my Bergeon bushing machine is back ordered and it does not look like it will arrive until April. I really do not want to learn how to hand bush, I will leave that to the traditionalists. The bushings are in good shape and I am confident it will run but eventually it will need bushing work.

The first challenge after dis-assembly was to clean the movement and the springs. When I first pulled it out of the case, the time spring had completely let go as a result of a click failure. You can see the retracted spring in the photo below. Click failures are a common problem with Sessions movements. In fact, I have another Sessions Westminster chime clock with the same issue.

I cleaned and lubricated both springs. Everything went well until I tried to hook one of the springs to the winding arbor. After many tries I managed to massage the spring around the arbor with needle-nosed pliers and it finally hooked. The other spring was fine. Let’s hope it stays put and lets hope my click repair is successful.

The next photo shows everything in place on the bottom plate. You will see some strange looking wires which appear to be added to the movement but they are actually helper wires installed at the time the clock was made, essential to allow retraction / movement of some of the levers.

Getting the top plate on can be frustrating without the proper tool. One such tool is a pivot locator. It is a hooked device about 8 inches long that allows one to position the pivots into the bushings with minimal fuss.

Here is the assembled movement with the springs clamped for safety. You will notice the top plate appears to be dirty. In fact, this is some kind of lacquer residue. I am not into aesthetics and have chosen not to buff out the plates. A repair shop might for appearance-sake. The important things is that the mechanism is clean, which, of course, it is.

As I have others things on the go I have not tested this movement yet though I checked the action of the time side and the count wheel and they seem to be moving without restriction.

The next phase is testing and if necessary, minor adjustments.

Sessions Tambour – Beveled Number 2

This is a Sessions Tambour style clock that I have been working on for the past two months. I bought it as a non-working clock. As I said in a previous post it is a fairly attractive mantel clock featuring a mahogany finish with faux inlay just south of the dial. It was made in the late 1920s or early 1930s. The case is finsihed and now for the re-assembly of the movement after a good cleaning.

The clock has a few issues aside from the missing pendulum bob. Once the movement was out I inspected the click on the time side and sure enough it had slipped off the teeth. These clicks were poorly designed and often fail. However I think one for the reasons why the click failed was because the arbor hook detached from the spring somehow, I don’t know for sure. I feel that two are connected. I filed the click, gave the rivet a gentle bang with a hammer to set it more firmly in place and now it seems to work as it should.

I recently bought an Ollie Baker spring winder and this was it’s first test. I had a heck of a time getting the main wheel arbor to hook onto the spring and really had to muscle with the inner part of the spring to get the curvature just right so that it could hook. At first I thought that the hook was the problem but as you can see the hook looks fine. Then I thought the spring was the problem but as I said, perseverance paid off. User interface error I suppose.

As others have said that is one of the common frustrations of working with clocks. But in the end I managed to get it to hook. The two springs are coiled and secured and are now waiting to be put back onto the movement. But not today! One victory today is enough. I will keep the reader informed as to my further progress with this clock which I am determined to get working.

It all seems to be coming together although like most things worth doing, it takes time. Let me know what you think and if you have a chance I have a poll that you can respond to. Thanks.

January 13, 2016

Repair and Cleaning of Sessions Beveled Number 2

I did not pay much for this Sessions tambour style clock (circa 1927) though my first thought when I picked it up was that I paid a little too much, such was the work that awaited me. This was obviously a non-working clock when I received it and it did not take much to discover why. It also came without a key and a pendulum bob. Not a problem since I have an extra bob and a universal key set.

I suspected a problem when I first saw it advertised. When I finally picked it up I noticed that the strike side spring was fully wound while the time side was completely unwound.

A turn of the key on the time side told me that nothing was engaging . I suspected three things; a broken spring, broken click or unhooked spring. It turned out to be a broken click. Here it how I found the time side mainspring wheel (see photo below). The click engaged very poorly and ultimately slipped quite a bit making it impossible to wind. Sessions are great clocks but they have a dubious reputation for their click design and the clicks quite often fail over time.

and the repair.

The click was filed down and the rivet was made secure by tapping the back lightly with a ball pean hammer on a vice. Brass is pretty soft and easy to work with.

The clock was disassembled and the parts were first cleaned by hand and then placed in an ultrasonic cleaner. The bushing holes were pegged and the pivots were polished. I did not detect any serious bushing wear though at some time in the next year or two the clock will probably require some bushing work.

I test fit the movement but have not put on the top plate just yet since I am waiting for my spring winder to arrive.

The case was in poor shape and as mentioned in a previous post I stained, used steel wool and applied 3 clear coats to bring the case back to a presentable condition. I am pretty confident that once everything is all back together the clock should run nicely and be a fine addition to my collection.

November 12, 2015

Sessions Tambour Style clock

This is a Sessions Tambour style clock that, according to the label on the inside back access door is a Beveled Number 2. Seems like an odd name for a clock. It is a fairly attractive mantel clock featuring a mahogany finish with faux inlay just below the dial. It is a time and strike clock, two hammers striking on rods. I would put the date of manufacture at the late 1930s or early 1940s. I have 2 other Sessions clocks with a very similar movement so it looks very familiar. This one came without a pendulum bob so I will have to order one from Timesavers. I am not sure at this point whether the bob is a 2.3 oz or 3 oz so I will order both.

The clock has a few issues aside from the missing pendulum bob. I noticed right away that the time side arbor turned freely and therefore it was impossible to wind the time arbor as the click was not engaging the time spring teeth properly. Once the movement was out I inspected the click on the time side and sure enough it had slipped off the teeth.

This is a common problem with this type of movement and a repair is definitely in order. The movement itself is very oily and dirty having been sprayed with some sort of lubricant at one point in its life. There was back gunk (old caked oil) on some of the pivots but there was not as much play in the bushing holes than I would have expected. The spring issue probably arose early in its life. One thing which I first thought was an issue turns out not to be. As the photo shows there are helper wires between the escapement and the fly.

They keep the strike levers from bouncing and assure better operation of the striking mechanism. They are in factory installed condition.

The case was a little banged up. I did a little sanding with 0000 steel wool, removed dozens upon dozens of white paint drops, filled gouges in the veneer with a red chestnut stain and applied the same stain over the entire finish and it seems to pass for mahogany.

A little Brasso metal polish was applied to bring the shine up on the bezel and I Windexed the dial glass inside and out. The results, I think, are impressive. As a final stage I will apply a clear coat on the case.

Can I get this clock to work? I am convinced that if I can fix the time side click, give it a thorough cleaning, this clock will run fine for a long time.

November 1, 2015

Sessions Raven clock

I acquired my Sessions Raven clock about a year ago. It had been serviced by someone knowledgeable about clocks and arrived in excellent condition. The movement had clearly been disassembled, oiled, tested, and the case carefully reconditioned. Interestingly, it also came with a set of instructions from the person who had worked on it.

Sessions clock — _{Ebony in colour and very attractive}

Sessions mantle clock (12) — _{Detailed operating instructions}

I imagine he wanted to ensure the clock found a good home—and it certainly did! The only drawback was the absence of a label, which is always a consideration when purchasing antique clocks. Otherwise, everything appeared to be in order. According to Tran’s book, the leading authority on American clocks, the Sessions Raven dates to the 1920s. It is a time-and-strike clock, featuring a bell for the half-hour and strike rods on the hour. I suspect it was named the Raven because of its deep ebony color—quite striking, in fact.

Sessions mantle clock (17) — _{Time and strike movement showing the bell}

The Sessions Clock Company emerged from the E.N. Welch Clock Company in the early 1900s and was once one of the most recognized American clock manufacturers. However, like many others, it struggled to compete with the rise of electric clocks. Despite its efforts to adapt, the company persisted until the late 1960s before ultimately being forced into liquidation in 1969—a bittersweet end to a once-prominent name in horology.

My clock holds a prominent place in my family room. Its simple design reflects the style of its era and blends seamlessly into any space.

September 19, 2015

Sessions American No. 2 Mantel Clock

RS Sessions Mission Oak (3) — An attractive Sessions mantel clock

This is a recently acquired Sessions time and strike mission style mantel clock. Aside from cleaning up the case with diluted Murphy’s Soap, my standard cleaner for clock cases, I applied clock oil to the movement and reset the verge in order to get the proper beat. It is running well and keeps very good time. There is a speed adjuster at the 12 o’clock position which is helpful in regulating the speed.

RS Sessions Mission Oak mantel clock (7) — Sessions time and strike movement

There are some issues, the glass clips are broken and the glass is loose in it’s bezel but putty will fix that. It came without a double-sided key but I have enough spares that I have one that fits and the clock needs a thorough cleaning.

RS Sessions Mission Oak mantel clock (3) — Before bezel is cleaned

After it is running for a week or so, I will tear it down and address any bushing issues.

This is an “American No. 2” Sessions mantel clock from 1921 according to Tran Duy Ly’s book on Sessions clocks, page 121.

September 7, 2015

Sessions Westminster A Mantel Clock

This article describes my latest mantel clock find, an American tambour style time, strike and chime clock that has some very interesting features.

It is a Sessions Westminster A mantel clock made in Forestville Conn. The first year of production for this model was 1927. Between 1903 and 1933 Sessions produced 52 models of mechanical clocks, ranging from Advertisers, large and small clocks with logos of various businesses, to wall, or regulator clocks, and shelf or mantel clocks, designed for the home. Some of the Sessions clocks from this period are prized by collectors.

RS Sessions Westminster chime circa 1931 (12) — Inlay adds to the charm of this clock

This case is 21 inches long and 10 inches high, has a mahogany finish with a faux wood inlay and raised metal gold-coloured numerals. It has an 8-day Westminster quarter-hour chime movement. The strike and the chime are on the same train. This clock has 2 gear trains to perform what is usually done with three gear trains in most clocks. Rare but not unique.

Although made in the 1920’s, Sessions had to compete with every other American clock company as chime clocks became very popular. Movements with 3 gear trains were the norm; three arbours, one for each train. Sessions chose a radical approach, and designed the two-train Westminster movement with only two mainsprings. Economies of scale meant that the dial fit other time & strike mantel clocks as well.

RS Sessions Westminster chime circa 1931 (11) — Drum and pin chime arrangement

This particular clock was sold in 1931, an inscription testifies to the date. The sale price in 1931 was $29.95, a working man’s salary in the 1930’s. This is a $20 flea market find.

The time side runs well but the chime and strike side is not working. It has either a broken or a disconnected mainspring or perhaps some other major issue is lurking within.

This clock has a reputation for being difficult to work on. Some horologists will not touch it because of its quirkiness and the amount of time it takes to repair but I plan to give it a shot, not now but once I gain moire experience in clock repair.

August 29, 2015

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