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Glossary

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G

  • gorget

    An instrument used in the operation for removal of stones from the bladder. It is a director or guide with a wide groove.

  • gourd

    The ornamental, hard-shelled fruit of a vine.Hollowed gourds can be used as a number of things, including bowls or bottles.

  • gout

    A disease with painful inflammation of the joints caused by deposits of uric acid salts. It results in acute arthritis and chronic destruction of the joints.

  • gradient board

    A lineside board on which the gradient of the line is marked.

  • gramophone

    Gramophones operate similarly to "cylinder phonographs" but use, instead of a drum, a flat disc containing a spiral groove; a stylus is allowed to rest in the groove as the disc is rotated on a turntable, and the vibrations communicated to the stylus by the irregularities in the groove are transformed into sound vibrations.

  • grape scissors

    Implements used to cut clusters of grapes into small portions.

  • grape vine

    A vine or climbing shrub, of the genus Vitis, having small green flowers and lobed leaves, and bearing the fruit called grapes.

  • graphometer

    A surveying instrument used for angle measurements. Consisting of a semicircular limb divided into 180 degrees, the limb is subtended by the diameter with two sights at its ends. A magnetic compass is attached in the middle of the circular scale with a second pair of sights pivoting at the same centre. The device is mounted on a staff via a ball and socket joint.

  • graphs

    Representations of any sort of data by means of dots, lines, or bars; usually to illustrate relationships.

  • graters

    Any of various tools for grating and shredding food.

  • gravimeter

    An instrument for measuring variations in the gravitational field of the earth by detecting small differences in the weight of an object of constant mass.

  • grease gun

    A common workshop and garage tool used for applying lubrication.

  • greetings card

    A decorative card sent to send an expression of friendship or other sentiment.

  • groma

    An Ancient Roman surveying instrument consisting of a vertical staff with horizontal cross pieces mounted on a bracket. Each cross piece had a plumb line and plumb bob hanging vertically. Its main use was to survey straight lines, squares, and rectangles.

  • ground signal lamp case

    The outer casing for the removable paraffin lamp used for illuminating ground signals.

  • guards flag

    A coloured flag used by the railway guard to signal the driver to start or stop the train. Red is used to stop the train, green is used to start the train.

  • guards handlamp

    A handlamp carried by the railway guard used for giving hand signals in poor light, usually capable of showing red, green and white light.

  • guidebook

    Handbooks for the guidance of strangers or visitors in a district, town, building, etc., giving a description of the roads, places, or objects of interest to be found there.

  • guillotine

    A wooden machine with a heavy blade that slides vertically. Used for beheading – most famously during and after the French Revolution. Named after Joseph-Ignace Guillotin, who sought to establish a method of execution that was applicable to all classes of people, and which minimised pain.

  • gunpowder van

    A railway van used for the carriage of gunpowder, usually constructed of steel for strength, safety and security.

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