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  2. Scale ruler - Wikipedia

    en.wikipedia.org/wiki/Scale_ruler

    A scale ruler is a tool for measuring lengths and transferring measurements at a fixed ratio of length; two common examples are an architect's scale and engineer's scale. In scientific and engineering terminology, a device to measure linear distance and create proportional linear measurements is called a scale.

  3. HOn3½ gauge - Wikipedia

    en.wikipedia.org/wiki/HOn3½_gauge

    Sn3½ is also used to represent 3 ft 6 in (1,067 mm), as the gauge is the same as HO scale. HOm uses the same 12mm gauge track to represent metre-gauge (3ft3.37in) railways. HOn3 uses 10.5 mm ( 0.413 in ) gauge to represent 3 ft ( 914 mm ) gauge railways H0e /HOn30 uses 9 mm ( 0.354 in ) gauge to represent railway with gauges of about 750 ...

  4. List of rail transport modelling scale standards - Wikipedia

    en.wikipedia.org/wiki/List_of_rail_transport...

    The 37.5 mm length is not derived by a certain scale ratio. While HO scale is a 1:87 scale (3.5 mm to 1 foot), resulting in a 16.5 mm (0.65 in) gauge from real life prototype 1,435 mm (4 ft 8 + 1 ⁄ 2 in) standard gauge standard gauge. Conversely, modeling standard gauge in Lego trains would yield a scaling of (37.5:1435 =) 1:38.3.

  5. Rail transport modelling scales - Wikipedia

    en.wikipedia.org/.../Rail_transport_modelling_scales

    Ridable, outdoor gauge, named according to the gauge in inches, and scale in inches per foot, for example 7 + 1 ⁄ 4 in (184 mm) gauge, 1.5 inch scale. The gauge is 7 + 1 ⁄ 2 in (190.5 mm) in the US and Canada, where the scale sometimes is 1.6 inch for diesel-type models. Private and public (club) tracks exist in many areas.

  6. Ruler - Wikipedia

    en.wikipedia.org/wiki/Ruler

    A variety of rulers A carpenter's rule Retractable flexible rule or tape measure A closeup of a steel ruler A ruler in combination with a letter scale. A ruler, sometimes called a rule, scale or a line gauge or metre/meter stick, is an instrument used to make length measurements, whereby a length is read from a series of markings called "rules" along an edge of the device. [1]

  7. Ten and a quarter inch gauge - Wikipedia

    en.wikipedia.org/wiki/Ten_and_a_quarter_inch_gauge

    Ten and a quarter inch gauge (or X scale) (10 + 1 ⁄ 4 in / 260 mm) is a large modelling scale, generally only used for ridable miniature railways. Model railways at this scale normally confine the scale modelling aspects to the reproduction of the locomotive and with steam locomotives the accompanying tender .

  8. Technical drawing tool - Wikipedia

    en.wikipedia.org/wiki/Technical_drawing_tool

    An architect's scale. A scale ruler is a scaled, three-edged ruler which has six different scales marked to its sides. A typical combination for building details is 1:20, 1:50, 1:100, 1:25, 1:75 and 1:125. There are separate rulers for zoning work as well as for inch units. Today scale rulers are made of plastic, formerly they were made of ...

  9. Graduation (scale) - Wikipedia

    en.wikipedia.org/wiki/Graduation_(scale)

    A ruler with two linear scales: the metric and imperial.It includes shorter minor graduations and longer major graduations. A graduation is a marking used to indicate points on a visual scale, which can be present on a container, a measuring device, or the axes of a line plot, usually one of many along a line or curve, each in the form of short line segments perpendicular to the line or curve.