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These set squares come in two usual forms, both right triangles: one with 90-45-45 degree angles, the other with 30-60-90 degree angles. Combining the two forms by placing the hypotenuses together will also yield 15° and 75° angles. They are often purchased in packs with protractors and compasses. Less commonly found is the adjustable set square.
In oil field tubing, buttress thread is a pipe thread form designed to provide a tight hydraulic seal. The thread form is similar to that of Acme thread [10] but there are two distinct threaded portions of differing diameters and profiles, the larger having a wedging profile, with a tapered sealing portion in between the larger and smaller diameters.
Die swell is an expansion of the melt as the pressure is released, and is dependent on polymer chemistry and die design. After curing, the solid, continuous part is drawn onto a take-up roller or cut into transportable lengths, depending on the type of part. This process may vary significantly depending on the type of die and extrusion process. [1]
A pre-war treasure from British manufacturer Hornby, this train set represents the pinnacle of craftsmanship from late ’30s. Its detailed die-cast construction (which kind of resembles the ...
The FBI has released new information and video of the individual who planted pipe bombs outside the headquarters of both the Republican National Committee and the Democratic National Committee on ...
In a letter from Paris dated June 1, 1841 he states, "I am preparing the sixth edition of the Organon, to which I can only devote a few hours on Thursdays and Sundays." [ 11 ] However, in a letter to his publisher in Düsseldorf, dated 20 Feb 1842, he wrote, "I have now, after eighteen months of work, finished my sixth edition of my Organon ...