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Forklift Control Valves

Forklift Control Valve - Automatic control systems were initially created over two thousand years ago. The ancient water clock of Ktesibios in Alexandria Egypt dating to the 3rd century B.C. is thought to be the very first feedback control machine on record. This particular clock kept time by regulating the water level inside a vessel and the water flow from the vessel. A common style, this successful equipment was being made in the same fashion in Baghdad when the Mongols captured the city in 1258 A.D.

Through history, various automatic devices have been utilized in order to simply entertain or to accomplish specific tasks. A common European style through the seventeenth and eighteenth centuries was the automata. This particular device was an example of "open-loop" control, comprising dancing figures that will repeat the same task again and again.

Closed loop or feedback controlled machines include the temperature regulator common on furnaces. This was actually developed during 1620 and attributed to Drebbel. Another example is the centrifugal fly ball governor developed during the year 1788 by James Watt and used for regulating steam engine speed.

The Maxwell electromagnetic field equations, discovered by J.C. Maxwell wrote a paper in 1868 "On Governors," which was able to describing the exhibited by the fly ball governor. So as to explain the control system, he utilized differential equations. This paper demonstrated the usefulness and importance of mathematical models and methods in relation to understanding complicated phenomena. It also signaled the beginning of mathematical control and systems theory. Previous elements of control theory had appeared earlier by not as convincingly and as dramatically as in Maxwell's study.

New control theories and new developments in mathematical techniques made it possible to more accurately control more dynamic systems as opposed to the first model fly ball governor. These updated techniques include various developments in optimal control in the 1950s and 1960s, followed by progress in robust, stochastic, optimal and adaptive control methods during the 1970s and the 1980s.

New applications and technology of control methodology have helped produce cleaner auto engines, cleaner and more efficient chemical methods and have helped make space travel and communication satellites possible.

In the beginning, control engineering was practiced as just a part of mechanical engineering. Control theories were at first studied with electrical engineering as electrical circuits could simply be explained with control theory methods. At present, control engineering has emerged as a unique discipline.

The very first controls had current outputs represented with a voltage control input. So as to implement electrical control systems, the correct technology was unavailable at that time, the designers were left with less efficient systems and the choice of slow responding mechanical systems. The governor is a very efficient mechanical controller that is still often used by some hydro plants. In the long run, process control systems became offered previous to modern power electronics. These process controls systems were usually utilized in industrial applications and were devised by mechanical engineers using pneumatic and hydraulic control machines, many of which are still being utilized today.

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Forklift Parts

  • Rockwell Parts
    Rockwell Part - AxleTech International is a leading supplier in the world of specialty vehicle drive-train systems and components along with off highway vehicles. The business prides itself on being its clients' chosen supplier. AxleTech strives ...
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  • Attachment for Platform Scissor Lifts
    Attachments for Platform Scissor Lifts - Scissor pallet lift trucks are made for moving and hauling singly stacked pallets by integrating a raising mechanism that enables the pallets on the truck to be elevated. This apparatus is a great device ...
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  • Parts for Walkie Stackers
    Parts for Walkie Stackers - A pallet stacker is a kind of pallet jack that is employed to move, stack and lift palletized merchandise that are overly difficult for manual lifting. Its key purpose is to load and unload pallets on trucks, as well ...
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  • Bale Clamps
    Bale Clamp - Bale clamps are hydraulic forklift accessories that can be utilized in order to lift bales without a pallet. This attachment is practical if you're stacking or transferring numerous merchandise. Bar arm clamps are actually additional ...
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  • Adjustable Jib
    Adjustable Jib - Usually a forklift jib can be amongst the most useful tools that any construction business could put money into for lifting and shifting industrial tools on the job site. Jib boom lift truck accessories are really cheaper as ...
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  • 4 Wheel Drive Forklift Attachments
    4 Wheel Drive Forklift Attachment - There are actually two categories of forklifts within the production industry, the rough terrain model and the industrial version. Rough terrain lift trucks appeared in the 1940's intended predominantly for use ...
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  • Crane Hooks
    Crane Hook - The Hoisting Hook could transform any lift truck into an overhead lifting hoist. A safety chain utilizes a snap hook in order to lock this particular attachment to forklifts carriage within center fork openings. This Hoisting Hook ...
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  • Carriage Rollers
    Carriage Rollers - Carriage rollers are especially designed bearings which are utilized on lift masts to be able to help them perform within challenging environmental surroundings. Lift masts are frequently subjected to oscillations, shocks, ...
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