Monday, June 15, 2020

Keeping Time

 Stephen Hawkins wrote an interesting book titled “A Brief History of Time”.  So as not to be confusing, this newsletter will be called “ A Brief History of Time Keeping. And then, because so much of the history of time keeping is visibly on display at the Southwest Museum of Clocks and Watches, located in Lockhart, the newsletter will end by providing a brief tour of the museum.[1]

Before we get to the Museum, it is interesting to know more about the history of keeping track of time.

Various devices have been used to measure and keep track of time. The current system of dividing up the day into twenty-four segments dates to the Sumerians about 4000 years ago.

During this era, the middle eastern people used large obelisks to track the movement of the sun along with other devices to measure time.  Most of these were the water outflow type, along the same principle as the sand flowing through an hourglass.  The use of the obelisk was the idea that generated the sundial, the nifty garden decoration with the brass plate and the slanted gnomon.  The gnomon is a Latin word that means the pointer of a sundial.  Beware of sundials with gnomons at an odd angle, as sundials are only reasonably accurate when the gnomon is aligned with the Earth’s axis.

None of these ancient devices for keeping track of time were called clocks----that word came with the development of the mechanical clock, and one that could ring a bell.  In Medieval times, the word used was clocca which is translated into the English word of clock.  There are other spellings depending on the language, but they all are phonetically similar. Examples would be clokke, clocke, cloque, etc.  Another word that comes into our vocabulary is horology, stemming from the Latin word horologium[dt1] .  We will run into that word a bit later.

One invention that made mechanical clocks possible was the escapement wheel mechanism. The whole idea of the escapement made possible a clock that could display time on its face, by regulating the rotation of a shaft fitted with gears.  Escapements are a study unto themselves.  The principle of the escapement is shown by this schematic display:

Figure 30.1  basic escapement mechanism

The gray pendulum swings back and forth alternately releasing a gear tooth on one side and engaging a tooth on the other side.  Thus, with the swing of the pendulum, the shaft (black dot in the center of the toothed wheel) could be turned at regulated speed. The tic toc of old clocks is the escapement mechanism in operation.  Yet needed was a way to adjust the rate of this tic toc operation.  This was accomplished by use of a balance wheel and spring, or with the center of mass of a pendulum.  Either of these gave the first mechanical clocks their ability to be calibrated accurately with a measured beat.  Then, there is the need for power to make all this run.   Waterpower was used early, but metal springs able to be “wound up” and weights on chains are what made the early clocks suitable for use in homes and buildings possible in the 1600s.

Ever striving for accuracy, the pendulum clock was the most accurate up until the 1930s when quartz crystal oscillators were invented. But then, with the atomic age came the atomic clock based on the oscillating frequency of the Cesium atom referenced to zero degrees Kelvin.  The atomic clock is an extremely accurate time standard, providing clock time around the whole world.  The Cesium clock in Colorado provides an output that can be seen at https://time.gov/.  Today, this time is called Coordinated Universal Time across the entire world.

Accurate time is so commonplace now that few of us think about how precise time plays a role in our lives.  All nations are tuned into the atomic based clock now, but a few hundred years ago, coordinating time between places on the globe was a big challenge, especially when accurate time was needed to determine positions on the sea with a sextant.  There was a time not many decades ago that it was not only difficult to keep accurate time on land,  but also have the device transportable for use  at sea.  The only portable clocks way back then were more than a few cubic feet in size and very vulnerable to weather conditions.  Navigation at sea or on land was highly dependent on the accuracy of the clock.  Mapping, GPS location, transportation control, even the theory of relativity depends on accurate time.

Europe has an interesting history of clocks in public settings, all using old methods of keeping time and all having interesting features beyond telling the time of day.

We took the following picture when we were in Rouen, France in 1981. 

Figure 30.2  The Gros Horloge

The Gros Horloge is an astronomical clock with mechanisms and dials for indicating various astronomical phenomena such as phases of the moon and movement of the planets.  The mechanism is one of the oldest in France having been begun by Jourdain del Leche and completed by Jean de Felain in 1389 who became the first governor of the clock.  It is installed in a Renaissance arch crossing the Rue Gros-Horloge and in 1527 was moved from its original installation in the belfry to its present position so the citizens of Rouen could better see their most popular monument. 

Remembering the beauty and great age of the clock, another question remained to be answered.  Edge was asked, “What is the oldest astronomical clock in the world?”  Built in 1410 the Prague Clock has been keeping time for over 610 years.  The Gros Horloge appears to be older, but a little more digging uncovered the fact that even though it is in excellent condition, it has been powered by electricity since the 1920s., whereas the Prague clock is still keeping time with its original weights, gears, and teeth.  It is also composed of more moving parts, including statues.

Figure 30.3  The Prague Clock

Mounted on the south side of the Old Town Hall in the Old Town Square of the city of Prague the following features can be noted:  the Astronomical Dial that focuses on and records the universe of the Earth and Sun, the Zodiacal Ring that constantly moves the signs of the zodiac.  The third and fourth features bring into play moving sculptures.  The third feature is a portrayal of life and death and the sins that are to be avoided. When the skeleton rings a bell three figures shake their heads; they are not ready to die.   

  


              Figure 30.4  The Skeleton and Vanity

            


Figure 30.5  The Usury and Lust

Vanity tries to impress Death with his beauty, the Usury tries to buy him off with a sack of gold and Lust tries to entertain him.  When they rotate offstage, the twelve apostles begin to move in front of two windows at the top of the structure and when the rooster appears, the show is over until the next time.  A marvelous piece of engineering for the times.

All of this and more is featured in the Museum of Clocks and Watches, located in  Lockhart, Texas on the Square facing the historic Caldwell County Courthouse.  Built in 1894 in the popular Second Empire style of “Muldoon Blue” sandstone from Fayette, County, the courthouse’s mansard roofs and high central clock tower dominate the Square in French traditional grandeur.

Figure 30.6  Caldwell County Courthouse

And because of this special refurbished courthouse and its clock tower it began to have a special appeal to one man in particular, Mr. Gene Galbraith.  .  Gene was a music teacher and chorale director until he retired in 1991.  Always interested in watches and clocks, he apprenticed with McGuire’s Clocks in Austin for five years then went to work at Old Timer Clocks in Austin.  He became an expert well known and respected horologist and was Vice-President of Southwestern Chapter of the National Association of Watch and Clock Collectors when the idea of a museum came to him.  One night (all brilliant thinking comes at night) he envisioned a museum to be a repository for clocks and watches that would preserve history and provide a learning opportunity for young people.  The museum was formed in 2007 and after much organization, recruiting members, and finding donors, took up its first residence in September of that year in the Brock Building.  Built just 4 years after the courthouse in 1898, its corner entrance proclaimed it the original home of the Lockhart National Bank.  

The museum is ranked high among clock and watch museums of the entire USA. It has been featured in many publications and is well known throughout the community of clocks and watches experts.

Figure 30.7 The first location of the Southwest Museum of Clocks & Watches in Lockhart

Because the museum proved to be so popular and received so many excellent donations and loans of clocks and watches, it wasn’t too long before larger accommodations were needed.  Just down the street at 109 the old JC Penney building became available.


 Figure 30.8  Now at 109 E. San Antonio Street

This beautiful old building with its newly added interior galleries has the space to highlight the clocks of England, Germany, France, and America.

Figure 30.10  Entrance to the museum

Just to the left of the entrance is the lovely little museum shop full of interesting donated watch and clock items for sale.

 

Figure 30.11  Inside of two of the many galleries

 

Figure 30.12  Galbraith with The Great Clock Organ

One of the highlights of the museum, The Great Clock Organ stands 9’2” tall and was hand crafted of flame and burl mahogany in 1850’s Empire style. The organ has 72 wooden flute pipes and a weight-driven  bellows supplies air to lambskin valves.  The sliding wood cylinder has a choice of 10 different refrains that play as it rotates independently from the clock.  The statues you can see behind the glass, move when the music plays and this  amazing piece of furniture also  includes a desk with drawers for supplies.

Gene operates the museum with his associates, but those dedicated people do more than docent work in the museum.  One cornerstone effort is the restoration of the classic clocks of the county courthouses.  Gene is the go-to man for this restoration work---but it takes money to restore these old clocks to a condition where they will run for a long time.   Counties where clocks are needing  repair first have to appropriate the funds and then Gene’s team goes to work

These clocks  are the ones that are located high in the tower at many courthouses---many of which stopped operating because of lack of maintenance, but the interest in these magnificent clocks, as the classic county courthouses are being restored,  has placed a call on Gene to get them back into running order. Most of these clocks that have stopped keeping time have failed due to lack of maintenance and harsh conditions in the tower.

The classic courthouse clock has a face on four sides, so the clock not only needs to keep accurate time,  but must operate mechanisms to activate the minute and hourly hands, plus strike a bell on the hour---and manage the hands on all four sides of the clock tower.

At last count, Texas has some 50 county courthouses with tower clocks.  When we lived in Bandera County for a time we were impressed with the rehabilitation of the outside of its courthouse, but we were disappointed in the tower clock because it never showed the correct time.  Only recently did we learn that the hour and minute hands (that show 4:08) are painted on the clock faces.   The person who did the painting of the clock faces must have been an expert in trompe l’oeil because they look extremely realistic.

The Cooke County Commissioners in Gainesville, Texas .asked the museum to assess the condition of their Courthouse Clock as part of the courthouse’s restoration project.  It was found to be in  poor condition and needed a complete restoration.  Late in 2010 the museum’s proposal was approved by the Texas Historical Commission. The giant clock was installed in pieces in the early 1900s by hoisting the components up to the clock tower.  Now to repair it, Gene and his crew had to disassemble the clock and use a block and tackle to lower each of the components down seven stories-- a two-day job. After many hours of rebuilding and refurbishing this old clock, it was now in a restored condition and put on display in the museum until it was ready to be re-installed in the tower in time for the November 2012 rededication and 100- year anniversary of the courthouse.

 

Figure 30.13  Gene working on the Cooke County clock

In this photo of Gene at work with the E. Howard Clock in the tower at Gainesville in Cooke County, follow with your eye the vertical shaft which is turned by the clock mechanism.  This vertical shaft runs a set of gears which transforms the rotation of the vertical shaft into the rotation of four horizontal shafts, one for each of the four sides of the clock face.

Figure 30.14  Cooke County Courthouse

The clock is keeping perfect time today as it reigns supreme over the restored Beaux Arts-style courthouse with some Prairie features of Louis Sullivan seen in the ornamental plaster and stained glass.  Another historical Texas monument saved for the future by the citizens of Texas.

_____________Sightings______________

No quail, and not much new to report except we did spot some colorful creatures (homo sapiens) floating on the Guadalupe River at Horseshoe Bend in Canyon the other day.



[1] Open on Saturdays 10 AM-4PM or by appointment by calling (512) 658-3853.  Admission is free, and donations are gladly accepted.


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