Search results
Results from the WOW.Com Content Network
The modern D-28 standard series is made of several high quality tone woods, including solid Sitka Spruce tops, Indian rosewood back and sides, mahogany neck, ebony fret board, ebony bridge, and maple bridge plate. It uses the classic non scalloped X bracing pattern prior to 2017 pioneered by Martin, along with an ebony bridge and fret board.
The Martin Bridge is a steel truss bridge of eleven spans, each 37.1 metres (122 ft) long, on concrete supports, with three steel girder approach spans each 12.2 metres (40 ft) long. The total bridge length is 463 metres (1,519 ft). Originally it had a lifting span with two concrete counterbalances.
A tuning pin is a tuning peg with a detachable grip, called a tuning lever. The socket on the tuning lever fits over the pin and allows it to be turned. Tuning pins are used on instruments where there is no space for a knob on each string, such as pianos and harps. Turning the peg or pin tightens or loosens the string.
A taper pin is a fastener used in mechanical engineering. They are steel rods with one end having a slightly larger diameter than the other. Metric taper pins have a taper of 1:50. [1] A 1:50 taper means that one end of a 50 mm long bar will be 1 mm smaller in diameter than the other end.
A taper insertion pin, also known as a taper, is a tool used for enlarging holes for body modification purposes. It is a long metal rod with one end having a slightly larger diameter than the other. Tapers are usually used for expanding piercings in order to accommodate larger plugs.
A precision tapered reamer is used to make a tapered hole to later receive a tapered pin. A taper pin is a self tightening device due to the shallow angle of the taper. They may be driven into the tapered hole such that removal can only be done with a hammer and punch. They are sized by a number sequence (for example, a No.4 reamer would use No ...
For pianos, pins are typically square with a slight taper. There are three standard sizes known as No. 1, No. 2 and No. 3, for pins up to 6.5mm, for pins 6.5mm to 7.25mm, and for pins larger than 7.25mm. No. 2 is the most common. Wrenches are supplied with an eight-point star. [1] Some early keyboard instruments have oblong-shaped tuning pins.
The tapered drift pin is used to align the two bolt holes in two separate components that are designed to mate. First the two components are maneuvered until the holes in each are in semi-alignment, such that the narrow end of the tapered drift pin can be inserted through the two holes.