Tying machine
AssigneeBAE SYSTEMS plc
InventorsBernard Cullen, Kenneth Sorley, James John Pirrett Higgins, Charles Thomas Marshall, David Michael Stalker
Life of this patent
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Abstract
There is disclosed a tying machine (100) for forming bundles from a plurality of propellant sticks (4). Such bun-files may be used to form a propellant charge for use in, for example, heavy artillery. The tying machine tends to comprise an aperture (6) and a work surface (8) such that the plurality of sticks may rest on the work surface and occupy a portion of the aperture. Further, a drum (10) holding one end of a length of twine surrounds the aperture and can be rotated to wind the twine around the sticks. The twine can be secured once the sticks are bound.
Claims15
A tying machine suitable for binding a plurality of propellant sticks to form a bundle, the bundle being suitable for use as a propellant charge, the tying machine comprising:—
- a housing defining an aperture such that the aperture may accommodate the plurality of propellant sticks;
- a shuttle for engaging a portion of a ligature;
- and
- a holder fixed to the housing, the holder being suitable for holding a reservoir of a resilient ligature, the reservoir being suitable for evolving the ligature,
- wherein, if the shuttle engages a portion of the ligature, and if the plurality of propellant sticks are suitably disposed in the aperture, the shuttle can be moved relative to the plurality of propellant sticks to wind the ligature around the plurality of propellant sticks to form the bundle,
- and wherein the machine is adapted for use with sensitive combustible materials.
Dependencies are inferred from the claim text.