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The rubbing of rope against rope also has a tendency to cause wear. These problems were addressed by Frank L. LeBus Sr., a supplier of drilling equipment to the oilfields of Texas, USA, who in 1938, patented the use of a groove bar on hoisting drums to guide the spooling of rope.
The hydraulically blowing machine consists of 2 parts. Cable feeding unit: - This is the main component of blowing machine and it pushes the cable into the HDPE duct with the help of compressed air. Hydraulic Power pack: - This unit provides the power to cable feeding unit and it is because of hydraulic power pack, the cable feeding unit operates.
A cable reel is a round, drum-shaped object such as a spool used to carry various types of electrical wires. [1] Cable reels, which can also be termed as drums, have been used for many years to transport electric cables, fiber optic cables [ 2 ] and wire products.
This design results in significant increases in servo valve flow capability, stability, and force output. Similarly, three-stage servo valves may use an intermediate stage spool valve to position a larger third stage spool valve. Three-stage servo valves are limited to very high power applications, where significant flows are required.
Backflow prevention device. The simplest, most reliable way to provide backflow prevention is to provide an air gap.An air gap is simply an open vertical space between any device that connects to a plumbing system (like a valve or faucet) and any place where contaminated water can collect or pool.
In electrical engineering, a limit switch is a switch operated by the motion of a machine part or the presence of an object. A limit switch can be used for controlling machinery as part of a control system , as a safety interlock , or as a counter enumerating objects passing a point.
An engineer inspecting the winding machine. Winding machines are classified based on the materials they are winding, [2] [3] some major types are Coil winding machine; Film winding machine; Rope winding machine [4] Paper winding machine; Foil winding machine; Roll slitting machines; spool winding machine; cop winding machine
A sail switch, vane switch or flow switch is a mechanical switch that is actuated on or off in response to the flow or non-flow of a fluid such as air or water. [1] A sail switch typically operates through the use of a paddle or a diaphragm which gets displaced due to the force of fluid or air moving past it.