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Fred A. Lennon and Cullen B. Crawford founded Crawford Fitting Company in Cleveland, Ohio, in July 1947 to manufacture the Swagelok tube fitting, which used a two-ferrule design to “swage” or form the tube and lock it into place. One year later, Lennon bought out Crawford and continued to grow the business.
Fred Lennon was born in Providence, Rhode Island, to Patrick and Catherine Lennon, as the youngest of their nine children. [2] By the age of 42, he was living with his wife in an apartment in Cleveland, Ohio, when he borrowed US $500 from his wife's uncle to buy The Crawford Fitting Company later to be renamed Swagelok Company.
Pipe fitters plan and test piping and tubing layouts; cut, bend or fabricate pipe or tubing segments; and join those segments by threading them, using lead joints, welding, brazing, cementing, or soldering them together. They install manual, pneumatic, hydraulic and electric valves in pipes to control the flow through the pipes or tubes.
Oxygen and MAPP gas cylinders with two-stage pressure regulators Schematic diagram of pressure reducing regulator (A) and back-pressure regulator (B). The upper diagrams show the normal state for the valves, which is normally open for pressure reducers and normally closed for back-pressure valves.
Tilting-disc inconel check valve Check valve symbol on piping and instrumentation diagrams.The arrow shows the flow direction. Vertical lift check valve. A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction.
Individuals who make their own bullets usually are not aware of available manual specialized equipment and dies required for swaging bullets, [citation needed] and thus choose to make cast bullets. To get high precision results, it is common to cast the bullets slightly oversized, then swage the resulting castings through a die to do the final ...
A shipfitter is an enlisted or civilian person who works on materials such as high-tensile steel and high yield strength steel. Shipfitters fabricate, assemble and erect all structural parts of a ship, coordinate all fixed tank work performed on submarines and ships, and coordinate all sonar dome work. Shipfitters also use heavy machinery, such as plate planners, shears, punches, drill press
A diving regulator or underwater diving regulator is a pressure regulator that controls the pressure of breathing gas for underwater diving.The most commonly recognised application is to reduce pressurized breathing gas to ambient pressure and deliver it to the diver, but there are also other types of gas pressure regulator used for diving applications.