Gunners blamed this bucking tendency on the practice of centering the trunnions on the lower line of the bore.
The casting of trunnions on the gun made elevation and transportation easier, and the cumbrous beds of the early days gave way to crude artillery carriages with trails and wheels.
But the most useful mortar, of course, had trunnions and adjustable elevation by means of quoins.
In 1756, Müller raised thetrunnions to the center of the bore, an improvement that greatly lessened the strain on the gun carriage.
Before nailing the frame together bore holes in the side uprights for the trunnions of the slats to turn in.
If the trunnions are centered properly, the small hole should be exactly in line with them and in the center.
Small nails are driven into the ends of the slats and the heads are filed off so that the projecting ends will form trunnions for the slats to turn on.
In order to close the embrasure as tightly as possible, the gun is surrounded with a ring provided with trunnions that enter the sides of the embrasure.
This disk is movable around a horizontal axis, and its lower part and its trunnions are protected by the sloping mass of concrete that covers the head of the casemate.
The trunnions and flange couplings are of cast steel.
Two trunnions or lugs are forged to the lower end of the shank.
Let +B, -B, be two smaller trunnions which project out from the sides of the two strips connecting together a pair of rings CC.
The bed log and gun may now be mounted by placing a very strong round bar of hard tough wood across the slide or carriage immediately below where the trunnions would have rested.
How do you set out the trunnions of oscillating engines, so that they shall be at right angles with the interior of the cylinder?
Might not the eduction trunnionsbe immersed in water?
Plummer blocks of shafts and trunnions of oscillating engines.
How is the packing of the trunnions usually effected?
These trunnions are generally placed about half way up on the sides of the cylinder; and through one of them steam is received from the boiler, while through the other the steam escapes to the condenser.
Would any difficulty be experienced in keeping the trunnions tight in a high pressure oscillating engine?
I I are the steam pipes leading to the steam trunnions K K, on which, and on the eduction trunnions connected with the pipe M, the cylinders oscillate.
The combination substantially as described of the inclined rake handle with the trunnions or pivots revolving on the reel shaft, and arranged diagonally thereto.
Into these slots the trunnions of the mirror were placed, and then the nuts were screwed tightly on, clamping the sticks against the sides of the mirror.
Great care was taken to have the unsilvered spot exactly on a line with the trunnions and just half-way between them.
Light nails were driven into the slats at the ends, and the nail heads were then filed off so that the projecting ends formed trunnions for the slats to turn on.
Before nailing the frame together we drilled holes in the side pieces for the trunnions of the slats to turn in.
After the trunnions had been set in place we made a peep hole in the center of the mirror by cutting out a piece of the wooden back of the frame and scratching away the silver from the back of the glass.
In old ordnance, one of the handles above the trunnions by which the gun was lifted.
The excess of weight of that part of a canon behind the trunnions over that in front of them.
The reason why it is not a good plan to have the shutter itself act as one terminal of the circuit is that this necessitates the circuit connections being led to the shutter through the trunnions on which the shutter is pivoted.
This is bad because, obviously, the shutter must be loosely supported on its trunnions in order to give it sufficiently free movement, and, as is well known, loose connections are not conducive to good electrical contacts.
If the trunnions are placed within the limits of toleration, the preponderance must not vary more than 5 per cent.
The lengths of the trunnions are measured with the foot-rule, and the diameters of the rimbases by that of the exterior rim of the trunnion-gauge.
The axis of the trunnions is to be laid horizontal, either by placing a small level on the trunnions, or, as more exact, by using the trunnion-square.
It is intended that these shall be so high that the guns may be rolled upon them without their trunnions touching the ground, and that the earth will not be beaten up against their muzzles by heavy rains.
The bore must be measured at intervals of 1/4 inch from the bottom of the cylindrical part to the seat of the shot; of 1 inch from that point to the trunnions; and of 5 inches from the trunnions to the muzzle.
The cap-squares must be frequently removed, the guns lifted and the trunnions cleaned; the elevating screws oiled, but never cleaned with brick or emery paper.
The gun having been levelled, and the trunnions placed horizontal, a centre line is to be drawn on the top of the left (or right) rimbase.
From the axis of trunnions to base-line, more or less .
The square, being again applied, will determine whether the trunnions are above or below the axis of the bore, which will coincide with that of the gun, if accurately bored, and turned on the same centres and bearings.
Position of trunnions relatively to the axis of guns.
Laying guns when the axis of the trunnions is not horizontal.
Position of trunnions relatively to the center of gravity of the gun.
Determination of the amount of percussion of the breech upon the elevating screw, and of that of the trunnions upon the trunnion holes.
Trunnions; object and arrangement of trunnions and their shoulders.
He succeeded in knocking off the trunnions of three iron twenty-four pounders, burning their carriages, destroying a small quantity of flour, and several barrels of trenchers and wooden spoons.
Trunnions are affixed to the piece, and the metal by which it was attached to the long-decayed wooden gun-carriage is still preserved.
Fasten a piece of wood, A, to the cannon, by means of machine screws or, if there are no trunnions on the cannon, the wood may be made in the shape of a ring and slipped on over the muzzle.
It is best to solder the wire to the trunnions before cementing the side blocks inside the cylinder.
Defn: The excess of weight of that part of a canon behind the trunnions over that in front of them.
Oscillating engine, a steam engine whose cylinder oscillates ontrunnions instead of being permanently fixed in a perpendicular or other direction.
Ordnance) Defn: Having trunnions the axes of which lie below the bore; -- said of a cannon.
Brass cups placed on the trunnions of guns to lubricate or oil the trunnions and trunnion-beds.
Mortars will hereafter be dismounted from their carriages once every twelve months, and the trunnions and trunnion-beds thoroughly cleaned, including the oil-grooves in the trunnion-bed liners.
Also, smooth crooked plates of iron forelocked upon the trunnions of cannon; these, however, are more properly termed cap-squares.
The clamp of iron which shuts over the trunnions of a gun to secure them to the carriage, having a curve to receive one-third part of the trunnion, the other two being sunk in the carriage; it is closed by forelocks.
Also, in ordnance, especially brass guns, two handles nearly over the trunnions for lifting the guns by.
The cylinder has trunnions at the middle of its length, working in fixed bearings, and the piston rod is connected directly with the crank, and no guides are used.
The cylinder has trunnionsat its upper end, and swings like a pendulum.
The Burmahs reoccupied the stockade, and we had to take it a second time, when we found that they had most ingeniously supplied the want of trunnions with iron hoops and rivets, and the gun was fired at us before we entered.
I recollect once at the first taking of a stockade, we knocked off the trunnions of an old iron gun, and left it there as useless.
It is mounted on trunnions T, so that it can be tipped over on its side for filling and emptying.
One of the trunnions is hollow and a pipe P connects it with an air chamber A, which forms a false bottom to the converter.
The trunnions are hollow, one containing the steam and the other the exhaust passage.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "trunnions" in a variety of sentences. We hope that you will now be able to make sentences using this word.
