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The dashpot timer, or mechanical timer, has changed the way we use technology. With its many industrial and commercial applications, to household appliances and gardening, the dashpot timer is a very important invention that has certainly led to many changes in how thing were done during the 20th century and how things are done in modern times.
Mechanical timers use clockwork to measure time. [1] Manual timers are typically set by turning a dial to the time interval desired, turning the dial stores energy in a mainspring to run the mechanism. They function similarly to a mechanical alarm clock, the energy in the mainspring causes a balance wheel to rotate back and forth. Each swing of ...
That is: linear distance = radius × angular distance. And by definition, linear distance = linear speed × time = radius × angular speed × time. By the definition of torque: torque = radius × force. We can rearrange this to determine force = torque ÷ radius. These two values can be substituted into the definition of power:
A time switch (also called a timer switch, or simply timer) is a device that operates an electric switch controlled by a timer. Intermatic introduced its first time switch in 1945, which was used for "electric signs, store window lighting, apartment hall lights, stokers, and oil and gas burners." A consumer version was added in 1952.
According to Bilfinger, this is the first mechanical striking clock and could have been made by de Dondi. This is the first time a clock is mentioned that strikes consecutive hours, e.g. once at 1, twice at two, etc. and that strikes day and night. As there are detailed descriptions of what the clock does, it was considered a novelty.
A cam timer or drum sequencer is an electromechanical system for controlling a sequence of events automatically. It resembles a music box with movable pins, controlling electrical switches instead of musical notes.
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