Search results
Results From The WOW.Com Content Network
Lorenz Lechler was a late 15th-century German master mason who composed Instructions, a booklet on gothic design, and who contributed to the Heidelberg Church.As a master mason, Lechler's writing gives insight into Gothic architecture from the perspective of a builder as opposed to the more common contemporary perspectives written by clerics.
Lechler was born on 26 July 1824 to pastor and Pietist Gottlob Lechler. He initially joined the merchant industry as an apprentice. During this time, an illness in which he contracted resulted in his Christian faith being strengthened and in 1844 committed himself to becoming a missionary by entering a Mission school run by the Basel Mission.
The first clock known to strike regularly on the hour, a clock with a verge and foliot mechanism, is recorded in Milan in 1336. [96] By 1341, clocks driven by weights were familiar enough to be able to be adapted for grain mills, [97] and by 1344 the clock in London's Old St Paul's Cathedral had been replaced by one with an escapement. [98]
In 1889, the German company opened a subsidiary in Ponte Chiasso, Como.The Italian subsidiary was run by a German engineer, Ermanno Spindler.In the early years customers were small-sized non-specialist retailers, professional private users and businesses that employed Lechler products largely on iron and wood, e.g. coaches, railway wagons and carriages, tramway cars and furnishings.
A fusee (from the French fusée, wire wound around a spindle) is a cone-shaped pulley with a helical groove around it, wound with a cord or chain attached to the mainspring barrel of antique mechanical watches and clocks. It was used from the 15th century to the early 20th century to improve timekeeping by equalizing the uneven pull of the ...
To run the clock on this small amount of energy, everything in the Atmos must be as friction-free as possible. For timekeeping it uses a torsion pendulum, which consumes less energy than an ordinary pendulum. The torsion pendulum has a period of precisely one minute; thirty seconds to rotate in one direction and thirty seconds to return to the ...
The rack and snail striking mechanism used in repeaters is described in detail in the striking clock article. Repeater clocks often had a cord with a button on the end protruding from the side of the clock. Pulling the cord actuated the repeater mechanism. This was called a pull repeater. Repeating carriage clocks have a button on the top to ...
The time is usually based on a 12-hour clock. A method to solve such problems is to consider the rate of change of the angle in degrees per minute. The hour hand of a normal 12-hour analogue clock turns 360° in 12 hours (720 minutes) or 0.5° per minute. The minute hand rotates through 360° in 60 minutes or 6° per minute. [1]