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The B7G (or "small-button" or "heptal") seven-pin miniature tubes are smaller than Noval, with seven pins arranged at 45-degree spacing in a 9.53 mm (3/8th inch) diameter arc, the "missing" pin position being used to position the tube in its socket (unlike octal, loctal and rimlock sockets). Examples include the 6AQ5/EL90 and 6BE6/EK90.
The range of opening depends on the length of the bar and the position of the pins. [5] There are locks that can put a bolt through a hole in the stay to prevent the window from opening. [6] Telescopic friction stays are tube shaped and can extend from 11 to 16 inches. They have models for outward opening or inward opening windows. [3]
The two halves of a riveted leather snap fastener. The top half has a groove which "snaps" in place when "pressed" into the bottom half. A snap fastener, also called snap button, press button, [1] press stud, [1] press fastener, dome fastener, popper, snap and tich (or tich button), is a pair of interlocking discs, made out of a metal or plastic, commonly used in place of traditional buttons ...
A boom vang (US) or kicking strap (UK) (often shortened to "vang" or "kicker") is a line or piston system on a sailboat used to exert downward force on the boom and thus control the shape of the sail.
Telescopic cylinders are a special design of a hydraulic cylinder or pneumatic cylinder as well as pulley system which provide an exceptionally long output travel from a very compact retracted length. Typically the collapsed length of a telescopic cylinder is 20 to 40% of the fully extended length depending on the number of stages. [1]
1-9 Pinch-type construction valves, mostly P8 bases (P base, 8-pin side-contact) or European 5-pin (B base) and various other European pre-octal designs. 10–19 8-pin German metal octal, G8A 20–29 Loctal B8G ; some octal; some 8-way side contact (exceptions are DAC21, DBC21, DCH21, DF21, DF22, DL21, DL21, DLL21, DM21 which have octal bases)
150–159 – German 10-pin with spigot; 10-pin glass with one big pin; Octal 160–169 – Inline wire-ended Pencil tubes ; Y8A 8-pin steel tube base 170–179 – RFT 8-pin; RFT 11-pin all-glass gnome tube with one offset pin
Knob-and-tube wiring (sometimes abbreviated K&T) is an early standardized method of electrical wiring in buildings, ...