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John Calvin Jureit (July 24, 1918 – September 9, 2005) was an American civil engineer and the inventor of the Gang Nail connector plate, used in building construction specifically for the joining of timber truss joints of roof, floor trusses and prefabricated wall panels. This invention has been widely credited for the boom in affordable ...
A ballistic plate, also known as an armour plate, is a protective armoured plate inserted into a carrier or bulletproof vest, that can be used stand-alone, or in conjunction with other armour. "Hard armour" usually denotes armour that uses ballistic plates. It serves to defeat higher threats, and may be considered as a form of applique armour.
When the service opening is not in use, it is sealed by a removable cover plate, commonly referred to as a Butterworth cover. [4] Butterworth hatches are not the main access hatches, but are the servicing hatches, and are generally closed with a metal cover plate with a gasket that is fastened to the deck by a number of bolts which stick up ...
A call for a next generation plate, to stop even greater velocity threats than the ESAPI plate was issued by the U.S. Army in 2008. [5] The X Threat Small Arms Protective Insert plates are specifically allowed scalar or flexible systems, and asked for better coverage, with less than a pound of additional weight.
James Preece, dating coach. In some cases, depending on where you are, it can also be helpful to use your surroundings. “This is particularly easy if there is something obviously going wrong ...
The first, the Small Arms Protective Insert (SAPI), called for ceramic composite plates with a mass of 20–30 kg/m 2 (4–5 lb/ft 2). SAPI plates have a black fabric cover with the text "7.62mm M80 Ball Protection"; as expected, they are required to stop three rounds of 7.62×51mm M80 ball, with the plate tilted thirty degrees towards the ...
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