Please ensure all fields are filled in completely.
To view previous winner: Click Here


Personal Information:


Going to college is a big financial commitment. Write an essay that outlines how much you expect to spend to finish your schooling, how you intend to pay for your schooling, and what you expect your job to be once you are finished your schooling. There is no word limit for the essay.

Control Valves for Forklift

Control Valves for Forklift

around the web

Forklift Control Valve - Automatic control systems were first developed over two thousand years ago. The ancient water clock of Ktesibios in Alexandria Egypt dating to the third century B.C. is believed to be the first feedback control device on record. This clock kept time by regulating the water level within a vessel and the water flow from the vessel. A popular style, this successful tool was being made in the same fashion in Baghdad when the Mongols captured the city in 1258 A.D.

Through history, a variety of automatic equipments have been used to simply entertain or to accomplish specific tasks. A common European design throughout the 17th and 18th centuries was the automata. This tool was an example of "open-loop" control, consisting dancing figures which would repeat the same task over and over.

Closed loop or also called feedback controlled machines comprise the temperature regulator common on furnaces. This was developed during the year 1620 and accredited to Drebbel. One more example is the centrifugal fly ball governor developed during 1788 by James Watt and used for regulating steam engine speed.

J.C. Maxwell, who discovered the Maxwell electromagnetic field equations, wrote a paper in the year 1868 "On Governors," which could clarify the instabilities exhibited by the fly ball governor. He utilized differential equations to describe the control system. This paper demonstrated the usefulness and importance of mathematical methods and models in relation to comprehending 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 analysis.

New developments in mathematical techniques and new control theories made it possible to more accurately control more dynamic systems than the first model fly ball governor. These updated techniques comprise different developments in optimal control in the 1950s and 1960s, followed by advancement in stochastic, robust, adaptive and optimal control methods in the 1970s and the 1980s.

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

At first, control engineering was carried out as a part of mechanical engineering. In addition, control theory was first studied as part of electrical engineering because electrical circuits could often be simply explained with control theory techniques. Nowadays, control engineering has emerged as a unique discipline.

The first control relationships had a current output which was represented with a voltage control input. In view of the fact that the proper technology in order to implement electrical control systems was unavailable at that time, designers left with the choice of slow responding mechanical systems and less efficient systems. The governor is a very efficient mechanical controller that is still usually used by several hydro plants. Ultimately, process control systems became accessible prior to modern power electronics. These process controls systems were usually used in industrial applications and were devised by mechanical engineers utilizing pneumatic and hydraulic control devices, lots of which are still being utilized nowadays.

pdf Click to Download the pdf

Forklift Parts
Attachment for Propane Forklifts
Propane Forklift Attachments - One of the more versatile models of lift truck are the propane model which can be more helpful than other units. They can typically operate in a lot of different environments both outside and indoors. They do not emit h...

Alternator for Forklift
Forklift Alternators - A machine used in order to transform mechanical energy into electric energy is actually called an alternator. It can perform this function in the form of an electrical current. An AC electric generator could in essence also be...

High Reach Truck Attachment
High Reach Truck Attachments - Reach Trucks are industrialized equipment used for loading and storage in some establishments that maintain storage of supplies to finished merchandise on a pallet which are then placed into elevated shelving units. Thi...

Forklift Hitch
Forklift Hitch - The tow hitch is a device that is attached to the vehicle's chassis to be used for towing. Tow hitches may even be attaching to a tow-bar to the nose of an aircraft or a set of main gears. There are many kinds of hitches. They can be...

Concrete Buckets
Concrete Bucket - Many individuals will have a very hard time understanding how a construction project is completed on huge structures. A lot of these current projects built these days will possibly be extremely challenging to finish without the newe...

Truss Boom
Truss Boom - Truss boom's can be utilized to lift, transport and place trusses. The attachment is designed to work as an extended boom additional part with a triangular or pyramid shaped frame. Usually, truss booms are mounted on machines like a skid...

Container Forklift Attachment
Container Forklift Attachments - Forming the basis of containerization, shipping containers are part of a transfer system based on using steel intermodal containers (shipping containers). These containers are built to certain standard dimensions that...

Compact Scissor Lift Attachments
Compact Scissor Lift Attachments - Normally utilized in manufacturing, retail and construction industries, the scissor lift has the ability to raise people and goods to a higher level. The platform on the lift mechanism is utilized to be able to rais...

Lift Parts Express
For your entire fleet of lift-trucks, we provide the best prices on all our parts. For a price estimate on a part or attachment we offer, please get in touch with us at:

TOLL FREE: 1-888-695-7994
Saskatoon, Saskatchewan


Email Us
About Us