Acá está Tony el carriage de Napoleón:
<table border="0" cellpadding="0" cellspacing="0" width="750"><tbody><tr></tr><tr><td height="40" width="130">
</td> <td rowspan="2" height="210" width="310">
</td></tr></tbody></table>
Eres rápido como Billy el niño
Me ha picado la curiosidad y he buscado un poco, y la única referencia fiable sobre ese "carriage" que encuentro parece estar en Antiquorum.
(Siento lo del inglés)
Un saludo,
Tony
The evolution of the traveling clock brings us to the " modern traveling clock " or the carriage clock, which as stated can be dated to approximately 1796. This first example, Breguet’s no.178, was completed that year and sold to Napoleon in 1798. The clock, 11 cm. high, can be considered an archetype of the genre, because it features certain characteristics not found in older clocks. In short it differed from the others by its technical and practical innovations.
A.L.Breguet’s incomparable genius can be seen in the optimal use of forms and space, always of great importance to him, as well as in the technical innovations and the complications which he included, with his usual elegance. Breguet’s keen horological vision is evident in every detail. Although many of these details are not obvious, it is nonetheless true that they encouraged the further development of this horological genre. The fashion ended around 1930, as the public lost interest in such costly, and, from a practical point of view, useless instruments. Whether by coincidence or consequence, it happens that the decline of the traveling or carriage clock came about as the wristwatch was becoming universally popular.
This clock, no.178, is the first in a series of three. All are characterized by new features concerning the case, the dial, and the movement.
The case
The case, in chased and gilt bronze, exemplifies the pure lines and the simplicity of the period of transition between the French Revolution and the Directory. For the first time, all of the clock’s panels are in glass - on all 4 sides and on the top. This characteristic will be found several years later, in the clocks made by Paul Garnier (1801-1869), an eminent horologist who specialized in carriage clocks.
The dial
For the first time, the entire front surface is used for the dials, which allows greater legibility of the various types of information. The dial plate also becomes a decorative element, enriched by engine-turning or engraving which outlines the contours of the cut out calendar apertures. The dial is always protected by a small glass door which when opened allows the adjustment of the hands, of all the calendar indications and the moon phases, as well as the winding of the movement.
Previously, the dial indications had generally been given either auxiliary dials, or concentrically placed with the hour and minute hands. The result was, however, not easily legible. It was also a source of technical difficulties, due to the great precision necessary for the coaxial arbors of the different hands. The superimposition of the hands made their adjustment a delicate and complex operation.
Breguet’s use of the entire surface of the dial plate also allowed him to add other indications, by means of further windows or graduated sectors. Another important innovation was the use of revolving cylinders for the calendar indications. These would become one of the characteristics of Breguet’s work, and would be adopted by his successors.
The movement (Breguet No. 178)
The movement shows the first signs of a later development which was to increase precision, reliability, practicability, and the esthetic aspect : the adoption of the horizontal escapement.
This important event in horological engineering took place only a short time after the creation of this clock. The horizontal escapement would be fitted into clocks with exterior architectural characteristics and movements similar to those of the clocks shown here.
Another important innovation was the disappearance of the pull-cord previously used to arm the quarter repeating mechanism. In this model, the repeating mechanism is activated by means of a piston which, with its pushing action, winds the mechanism’s spring and frees the striking lever.
The mechanism, with its indication of all the calendar information by means of revolving cylinders, at once innovates and enriches the display dials, making it possible to construct more highly complex mechanisms which are independent of the going train, with minimal consumption of energy.
De:
Supongo que por las fechas, los esquemas del reloj podrían estar en el libro de George Daniel's The Art of Breguet.