... ship's bell clocks. The sequence for the bells is the same. 5/28/2013. The Schatz Royal Mariner Ship's Bell Cl⦠http://abbeyclock.com/mariner.html. 1/7 ...
Three Schatz Clocks Schatz 49 Anniversary Clock. Schatz Royal Mariner Clock (1975). Schatz Ship's Bell Clock (1980).
This page offers tips for repair of a Schatz Royal Mariner ship's bell clock. The principles are the same for other Schatz ship's clocks and similar for Chelsea ship's bell clocks. The sequence for the bells is the same.
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The Schatz Royal Mariner Ship's Bell Cl…
1
12:30
4:30
8:30
2
1:00
5:00
9:00
3
1:30
5:30
9:30
4
2:00
6:00
10:00
5
2:30
6:30
10:30
6
3:00
7:00
11:00
7
3:30
7:30
11:30
8
4:00
8:00
12:00
Fig. 1
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The Schatz Royal Mariner Ship's Bell Cl…
There is not much to see from the back of the clock.
Fig. 2
There is a wealth of information in Figure 3 (click on the images to see the enlargements). At the moment the strike lever falls into the recess of the gathering pallet [A], the hammer detent lever rises just as the hammer is released [B]. It is important for the gathering pallet to be adjusted so that striking stops as soon as the last hammer is released, or this feature will not work. The strike gear train is stopped when the strike lever falls to impede the rotation of the warning wheel [C]. There is a cam on the centershaft that determines the position of the hammer detent lever. When the cam raises the lever, this is the halfhour position. Each step on the snail has two positions(the half-hour and the hour). If you compare the half-hour position in Figure 3 and the hour position in Figure 4, this will become clear. I have seen several ship's clocks that were not correctly adjusted because the repairer did not understand it.
Fig. 3
In Figure 4, the hammer detent lever misses because the cam on the centershaft does not raise the http://abbeyclock.com/mariner.html
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lever. This is the hour position.
The Schatz Royal Mariner Ship's Bell Cl…
Fig. 4
Most of the parts have been removed from the front plate in Figure 5. It shows how the mainspring barrels are installed and how easily the barrels can be removed without taking the entire clock apart.
Fig. 5
Figure 6 shows the tools used to remove the gathering pallet. It is important that the gathering pallet be pulled upwards and not to one side (or the shaft will bend or break).
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Fig. 6
The arrangement of the gears is shown in Figure 7, after the back plate has been removed.
Fig. 7
Figure 8 shows the platform escapement of the Schatz Royal Mariner. It has a pin pallet escapement. The most important problem that happens with this platform is that the bushings for the escape wheel wear and need to be rebushed. An improvement would be to install friction jewels to replace the bushings, though the effort may not be justified in an escapement of this quality.
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The Schatz Royal Mariner Ship's Bell Cl…
Fig. 8
Fig. 9
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When you compare the Schatz Royal Mariner with a Chelsea ship's bell clock of similar vintage, there are several obvious differences. The Chelsea is better made, with polished pinions and gold-plated brass gears. The Chelsea platform has a Swiss lever escapement with 11 jewels. The Chelsea costs many times more! Chelsea clocks in general are more difficult to work on than Schatz and other equivalent clocks, so repairs on Chelseas should not be attempted by those without at least five years of experience at the bench and some watch repair experience. Schatz clocks are no longer being manufactured, but Chelsea clocks are. Another manufacturer of ship's bells clocks that should be mentioned here is Hermle.
The new Hermle ship's bell clocks have platforms with plastic escape wheel and pallets. The plastic parts should never be lubricated because the lubricants may react with the plastic! The second wheel bushing on the front plate of the Hermle is very close to the edge of the plate, making the replacement of the bushing difficult. If you buy a new mechanical ship's bell clock that is not a Chelsea, it probably has a Hermle mechanism. This Schatz clock was sent from Long Island, NY.
May 28, 2013 - Figure 15 shows a platform from a Hermle ship's bell clock mechanism (ca. 2007). Virtually all of the new ship's bells clocks, except for Chelsea ...
... (with Rotation in Degrees on the X axis and Displacement in Inches on the Y axis). 5/28/2013. The Epicycloidal Curve http://abbeyclock.com/gearing3.html. 1/3 ...
May 28, 2013 - This is probably the most impressive example of a modern Herschede ... the proper relationship of these parts (read the strike rack repair essay.
May 28, 2013 - 'normal load'), and the number of contact points will increase: ... slow-moving parts do not experience such levels of heat, so a different ... You will have noticed that water boils at 100º Centigrade: at 99º, it is a liquid; at 101
May 28, 2013 - Considering how much this clock cost, you would expect it to have a Graham escapement. 5/28/2013. Elliott http://abbeyclock.com/elliott.html.
May 28, 2013 - It is one of the best designs of chiming clocks, making it ... 1. The chime train, shown in Figure 2, should be assembled before the time train ...
1890 Japy Clock. 5/28/2013. Another French Japy Clock http://abbeyclock.com/japy2.html. 1/4. Page 2. This Japy clock was in very poor condition mechanically ...
May 28, 2013 - gently together, only some points on the surfaces will make contact. ... closer together when a force is applied at right angles to the surfaces ...
May 28, 2013 - The exceptionally durable Revere Telechron electric clock is one of several ... As expensive as the new motors have become, you might be ...
May 28, 2013 - The Atmos clock is one of the most difficult clocks a repairman will encounter at the bench. This clock should only be serviced by a professional: ...
May 28, 2013 - A worked example of this is below. A table showing ... Using the formula: (Practical ... A clock comes in for repair with a replacement pendulum.
Notice in Figure 3 that the shaft of the third wheel in the chime train. 5/28/2013. Modern grandfather clock http://abbeyclock.com/grandfather.html. 1/10 ...
May 28, 2013 - The rest of the cutting is performed by hand with a hobby knife: 5/28/2013 ... The inner part and the outer part are cut and the top is removed:.
May 28, 2013 - In order to find the forces exerted onto each pivot in the gear train of a watch, very sensitive ... I will reverse the normal order of this project by presenting the conclusion first, ... higher boiling points and they vaporize less e
May 28, 2013 - The following information was once on a webpage offering a clock for sale. ... from the internet, but not before I had saved the information.
Omega 551 (circa 1960) and a Rolex 1570 (circa 1969) wristwatches. 5/28/2013. Gearing: The Module and Gear Cutters http://abbeyclock.com/gearing9.html.
Mar 9, 1999 - Do not buy a hole closing set (13415). ... sale. I note that many clockmakers like optivisors. I cannot see well through them, so try before you buy. .... âThe top 300 trade secrets of a master clockmakerâ by Jim Huckabee, a very ..
May 28, 2013 - together in Morbier clocks are somewhat similar in design and construction to the medieval church tower clocks, made of strips of forged iron, ...
May 28, 2013 - together in Morbier clocks are somewhat similar in design and construction to the medieval church tower clocks, made of strips of forged iron, ...
May 28, 2013 - brass, in this website, describes the chemical properties of brass .... Consider what would happen if you introduced a few grains of sand into a.
May 28, 2013 - This is the formula to use to determine the correct mainspring length: 5/28/ ... Below is also a spreadsheet that you could download and use for ...
