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In chemistry, a retort stand, also called a clamp stand, [1] a ring stand, [2] or a support stand, [3] is a piece of scientific equipment intended to support other pieces of equipment and glassware — for instance, burettes, test tubes and flasks. [4] The typical ring stand consists of a heavy base and a vertical rod, both usually made of metal.
The Side-by-side (SxS), also known as utility task vehicle (UTV), is small four-wheel off-road vehicle. It has a side-by-side seating arrangement, and UTVs often have seat belts, roll-over protection and a storage box at the rear of the vehicle. In 2017, the UTV category was added to the Rally Dakar.
The American National Standards Institute (ANSI) publishes two standards for side-by-sides. ANSI/OPEI B71.9-2016 sets standards for multipurpose off-highway utility vehicles (MOHUV) specifically intended for utility use which are intended to transport persons and cargo, have a non-straddle seat, are designed to travel on four or more wheels, use a steering wheel and pedals for controls, have a ...
In April 1935, the General Electric Company introduced a new eight-pin tube base with their new metal envelope tubes. [7] [8] The new base became known as the octal base. [9] The octal base provided one more conductor with a smaller overall size of the base than the previous line of U. S. tube bases which had provided a maximum of seven conductors.
This 'vent sealing' name remained part of British nomenclature, rather than a clearer name of 'primer' or 'firing' tubes, as used elesewhere. [2] Friction T-tube, British Mk IV of 1914. The common friction primer is a copper tube, packed with powder, having at the upper end a short branch (called a nib piece) at right angles.
An all-terrain vehicle (ATV), also known as a light utility vehicle (LUV), [1] a quad bike or quad (if it has four wheels), as defined by the American National Standards Institute (ANSI), is a vehicle that travels on low-pressure tires, has a seat that is straddled by the operator, and has handlebars, similar to a motorcycle. As the name ...
In all types, the primer for the round was in the cartridge case base. The term QF in British use referred to the breech sealing mechanism, in which the brass cartridge case provided the gas seal. This allowed a sliding block , which can generally be operated faster than a BL screw mechanism, and is characteristic of small to medium artillery.
Percussion caps have been manufactured in various sizes to fit snugly over different sized nipples. Nipples for 4.5mm and 6mm percussion caps. The percussion cap, percussion primer, or caplock, introduced in the early 1820s, is a type of single-use percussion ignition device for muzzle loader firearm locks enabling them to fire reliably in any weather condition. [1]