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An interrupted screw or interrupted thread is a mechanical device typically used in the breech of artillery guns. It is believed to have been invented in 1845. [1]
The Welin breech was a single motion screw, allowing it to be operated much faster than previous interrupted-thread breeches, [citation needed] and it became very common on British and American large calibre naval artillery and also field artillery above about 4.5 inches (114 mm). [citation needed]
the Nordenfelt eccentric screw breech is a variation of this design. Instead of holding the breechblock between the breech at one end and the receiver at the other, in this design the breechblock is threaded around its circumference and is screwed into the breech until it meets the rear of the chamber.
Elswick coned interrupted screw breech of QF 6-inch naval gun. Elswick Ordnance Company (Armstrong's ordnance arm) developed a coned version of the interrupted-thread screw, with a decreasing rather than constant diameter towards the front. This eliminated the second "withdrawal" motion, with just two motions now necessary, rotate and swing aside.
Valerius Anderson invented the interrupted screw design and patented it in the year 1900. [2] Anderson observed that in the continuous flighting arrangement of a compression screw, there are tendencies for slippery materials either to co-rotate with the screw or to pass through with minimal dewatering.
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The son of an inmate who died after a prolonged beating by New York prison guards said in a federal lawsuit Wednesday that his father’s attackers “systematically and casually beat him to death ...
If you’re stuck on today’s Wordle answer, we’re here to help—but beware of spoilers for Wordle 1310 ahead. Let's start with a few hints.