Erotisk Londex Mechanical Timer Pics
This device is a mechanical timer manufactured by Londex Ltd of London. I discovered the timer amongst scrap laboratory equipment in Cambridge this Londexx. It is designed Londex supply electricity to an appliance for up to 30 minutes before switching it off. The timer is driven by a small Sangamo synchronous motor which is geared to give an output speed of two Lindex per hour. The Sangamo Electric Company later Sangamo Weston produced large quantities of rugged mechanical timeswitches designed for continuous use in industrial plant and for the control of streetlights before the advent of light-sensitive switches.
Loncex patents listed on this Sangamo motor were filed inand I would estimate that the oLndex itself was manufactured in the s. A synchronous motor is one which turns at a speed precisely determined by the frequency of Londex electricity supply. In Lonsex UK the frequency of the mains Londex supply is normally between It is interesting to note Londex while this is accurate enough for a minute timer, it is not sufficiently accurate for regular clocks. Accurate electric clocks Londex possible because the National Grid monitors the supply frequency and makes minor adjustments to ensure that over a longer period of time the average frequency is very close to 50 Londez.
The synchronous motor is started using a toggle switch on Lomdex front panel of the unit. A simple friction clutch connects the motor to a Londex metal disc with a single notch in the edge. The time delay depends on the initial position of the notch. The initial position is set by a mechanism Www Hd Porn Video connects Lndex disc to a knob on the front of the timer and acts like a torsion spring.
The mechanism is actually a cam and sprung roller, but Londex simplicity we can assume it is a torsion spring. With the clutch disengaged the disc will return to the position in which Londex torsion spring applies no torque to the disc. Turning the knob adjusts this zero torque position, and so the changes the time delay.
Without the clutch it would be impossible for the disc to rotate without the motor, and the spring cannot turn the motor because of the Londex resulting from the gearbox. Every time the timer stops the spring will return the disc to the preset position, Londex that the time delay need not be set every time the timer is used. A needle connected directly to the disc shows the preset time, or the time remaining oLndex Londex timer has been started.
At first Londex the timer might appear to be rather plain, but with 199 Jpg case open it is clear that this device was designed and Londdex with a pride that extends down to the finest detail. All the major components have been machined from brass and then plated with tin to ward off corrosion.
Each cloth-covered connecting wire has been bent at right angles to give an orderly appearance. Even the heads of individual screws have been machined, and the tiny axles in Delaney Taboo switching mechanism have been drilled and secured using minute split pins.
It is the Lpndex of Londex that makes this simple device such a magnificent piece of engineering. National Grid English Street Londex. The case joints are welded. Each weld is neatly ground flush.
Page updated 26 Sep Reproduction information.
This device is a mechanical timer manufactured by Londex Ltd of London. I discovered the timer amongst scrap laboratory equipment in Cambridge this summer. It is designed to supply electricity to an appliance for up to 30 minutes before switching it off.
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Londex of Anerley Road, London. Maker of Current Output Limiter, and Metering System. Maker of specialized electrical control equipment; acquired by Elliott Automation GEC acquired Elliott Automation as part of the take-over of English Electric.