trunnion, pivot, rowlock^; peg &c (pendency) 214

peg, button, stud, ridge, rib, jutty, trunnion, snag.

An opportunity was once afforded me of interfering, but things appeared to me to have gone too far; yet, even after all, I wish I had tried it, for Lord Byron always seemed to give me credit for wishing him sincerely well, and knew me to be superior to what Commodore Trunnion would call "the trash of literary envy and petty rivalry.

The eduction pipe is attached to the condenser by a flange joint, and the bolt holes are all made somewhat oblong in the perpendicular direction, so as to permit the pipe to be slightly lowered, should such an operation be rendered necessary by the wear of the trunnion bearings; but in practice the wear of the trunnion bearings is found to be so small as to be almost inappreciable.

The curvature of the segment is such as to correspond with the arc swept from the centre of the trunnion to the centre of the valve lever pin when the valve is at half stroke as a radius; and the operation of the segment is to prevent the valve from being affected by the oscillation of the cylinder, but the same action, would be obtained by the employment of a smaller eccentric with more lead.

The diameter of the trunnion bearings is 1 foot 2 inches, and the breadth of the trunnion bearings 5-1/2 inches.

Messrs. Penn, in their larger engines, generally make the area of the steam trunnion less than that of the eduction trunnion, in the proportion of 32 to 37; and the diameter of the eduction trunnion is regulated by the internal diameter of the eduction pipe, which is about 1/5th of the diameter of the cylinder.

Mark the centre of the cylinder upon each of these pieces, and put into the bore of each trunnion an iron plate, with a small indentation in the middle to receive the centre of a lathe, and adjusting screws to bring the centre into any required position.

To ascertain whether the trunnions stand in a transverse plane, parallel to the cylinder flange, it is only necessary to measure down from the flange to each trunnion centre; and if both these conditions are satisfied, the position of the centres may be supposed to be right.

The trunnion bearings are then turned, and are fitted into blocks of wood, in which they run while the packing space is being turned out.

Oscillating engine, advantages of, futility of objections to; details of cylinder; framing; condenser; air pump; trunnions; valve and valve casing; piston; piston rod; air pump connecting rod and cross head; air pump rod; eccentric and eccentric rod; valve gear; valve sector; shaft plummer blocks; trunnion plummer blocks; feathering paddle wheels; packing of trunnions.

Trunnion packing.

Trunnion plummer blocks.

Above all, he possessed a pair of light pea-green small clothes, on which he much prided himself, and I swore by old Trunnion to be their murderer.

But the real interest of the story lies not so much in the adventures of Peregrine, as in the character of the old Commodore Trunnion.

Thackeray declared Trunnion to be equal to Fielding's Squire Weston.

Among these were Commodore Trunnion and Lieutenant Hatchway, two retired seamen, and the sole companions of the bridegroom.

Mr. Pickle had early learnt the singular character of his neighbour Trunnion from a loquacious publican at whose house he was accustomed to call.

He prevailed upon Pipes to get up on the top of the chimney belonging to the Commodore's chamber at midnight, and to hollow through a speaking-trumpet, "Trunnion!

By this, and other stratagems, Trunnion's obstinacy was overcome.

Trunnion having obtained this permission, that very afternoon dispatched the lieutenant in a postchaise to the school, from whence in two days he returned with our young hero; who, being now in the eleventh year of his age, was remarkable for the beauty of his person.

Trunnion was confounded at this unaccountable passion, which had no other foundation than caprice and whim; and Gamaliel himself was so disconcerted and unsettled in his own belief, which began to waver, that he knew not how to behave towards the boy, whom his godfather immediately carried back to the garrison, swearing all the way that Perry should never cross their threshold again with his goodwill.

Her malice, however, was frustrated by the love and generosity of Trunnion, who, having adopted him as his own son, equipped him accordingly.

" Trunnion was incensed by this absurd renunciation, nor did Peregrine bear with patience the injurious declaration.

TRUNNION, COMMODORE HAWSER, an eccentric retired naval officer in Smollett's "Peregrine Pickle," affects the naval commander in his retirement.