MOUNTING FOR QUICK-FIRING FIELD GUN.
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in two bushes fixed to the brackets, and is provided with
two nuts; the latter are fitted with two arms jointed to a
traction-rod fitted with a screw arrangement to regulate
the tension of the system. Two tie-bars are fixed at one
end to the traction-rod, and at the other to the two ends of
a crossbar suspended to the carriage and provided with
the counterweight and held by one of the gunners, who
thus regulate its action on the wlieels.
The gun-limber consists mainly of a frame of steel
angles on which the ehest is bolted ; it is joined to the axle
by means of saddle-plates. The gun-carriage is suspended
from it.
a
75 and 80-Millimetre Field Guns on Rigid Carriage and Automatic Brake.
brake shoes. The system is complétée! by a lever with
counterweight, placed on the left-hand side; when the gun
is ready for firing, the counterweight is raised against the
gun trunnion. When the gun is fired, it falls back and
causes the shaft on which it is keyed, to revolve, and in
this action the two nuts separate from each other, thus
opening the two arms with which they are fitted, and
drawing forward the traction-rods and tie-bars, the brake
shoes bearing firmly on the wheel tyres. When the round
is fired, the lever is brought up again, and the gun can be
trained anew. If it is desired to use the brake when the
gun is wheeled from one place to another, a rope is tied to
75-Millimétré (2.952-In.) Gun, Long Type, with
Gas Recoil - Check, on Mounting Provided with a
Trail Spade (Figs. 907 and 909).—The following are
some particulars of this gun :
Weight of gun... 360 kg. 793 Ib.
,, carriage 540 kg. 1190 Ib.
,, projectile ... 5.2 kg. 1U Ib.
Muzzle velocity 550 m. 1804 ft.
Striking energy of projectile 80 t.-m. 266 foot-tons
The gun is fitted with a device called a “ gas recoil-
check,” which utilises some of the propelling force of
the gases created by the combustion of the powder charge