
1) Artillery mount 2) Artillery operation 3) Mounting for a weapon
Found on
https://www.crosswordclues.com/clue/gun-carriage

A gun carriage is a frame and mount that supports the gun barrel of an artillery piece, allowing it to be manoeuvred and fired. ==Early guns== The earliest guns were laid directly onto the ground, with earth being piled up under the muzzle end of the barrel to increase the elevation. As the size of guns increased, they began to be attached to heav...
Found on
http://en.wikipedia.org/wiki/Gun_carriage

Wheeled support for a cannon. Long guns usually had a wooden carriage. The carriage consisted of cheeks (sides), front and rear axle trees, trucks (wheels), transom (front support), buffer (front bumper), stool bed (base), bed block (back support), cap squares (metal bands clamping the trunnions to the cheeks), and quoin (tapered, right-angle block...
Found on
http://shipwrightjournal.blogspot.co.uk/p/glossary-of-nautical-terms.html

(from the article `artillery`) In 1850 carriages were broadly of two types. Field pieces were mounted on two-wheeled carriages with solid trails, while fortress artillery was ... ...with the barrel. Set just forward of the centre of gravity, trunnions provided the principal point for attaching the barrel to the carriage and a ... [2 ...
Found on
http://www.britannica.com/eb/a-z/g/82

[
n] - a framework on which a gun is mounted for firing
Found on
http://www.webdictionary.co.uk/definition.php?query=gun%20carriage
noun a framework on which a gun is mounted for firing
Found on
https://www.encyclo.co.uk/local/20974

the structure on which a gun is mounted or moved and from which it is fired.
Found on
https://www.infoplease.com/dictionary/gun-carriage
No exact match found.