A.There is the side lever engine (fig. 26), and the oscillating engine (fig. 27), besides numerous other forms of engine which are less known or employed, such as the trunk (fig. 22), double cylinder (fig. 23), annular, Gorgon (fig. 24), steeple (fig. 25), and many others.

The foundations of the walls must be laid at least two feet lower than the bottom of the cellar, unless the foundation be firm rock; and care must be taken to leave a small drain into the pit quite through the lowest part of the foundation of the lever wall, to let off any water that may be spilt in the engine house, or may naturally come into the cellar.

Colonel Colt first endeavoured to make a number of barrels revolve by raising the hammer, but the weight of the barrels suggested a return to the old rotatory cylinder, for which he took out a patent in 1835; and in 1836 he took out another patent for obtaining the rotatory motion by drawing back the trigger, and he subsequently introduced the addition of a lever ramrod fixed on to the barrel.

This would require the edge of the cut-off valve at the given instant to be at Q, perpendicularly over H; and the travel over the main valve would be equal to twice C H, the virtual lever arm of the eccentric, the actual traverse in the valve chest being twice O H, the real eccentricity.

While at Prince's Island, Capt. Gilbert bought a magnificent dressing case worth nearly a thousand dollars and a patent lever watch, and a quantity of tobacco, and provisions, and two valuable cloth coats, some Guinea cloth and black and green paint.

I shall, in a few months, leave Washington for New Jersey, family, kit and all, and bid adieu to the subject of the Telegraph for some more profitable business.... I have just finished a most beautiful register with a pen lever key and an expanding reel.

The lever l is connected directly with the governor.

I was therefore very tired when I went down, lit the central chain-lever lamp and my own two, washed and dressed in my bedroom, and sat to dinner in the dining-hall corner.

In a letter of May 10, 1869, to Dr. Leonard Gale, some interesting facts concerning the reading by sound are given: "The fact that the lever action of the earliest instrument of 1835 by its click gave the sound of the numerals, as embodied in the original type, is well known, nor is there anything so remarkable in that result....

Volume and tempo were mere lever matters.

As the train sped on, the engineer moved the reversing-lever notch by notch nearer the centre of the guide.

A rod passes from this valve through the smoke box below the boiler, and by means of a lever parallel to the starting lever, is brought up to the engineer's reach.

It must be seen how a lever-pen, alternately dropping upon and rising at defined intervals from a fillet of paper moved by independent clock-work, would produce the fabric of the alphabet and writing and printing.

Moreover, all the inventions of preceding ages, from the first fashioning of the flint to the spinning-wheel and the hand-lever press, were all conquests of the tangible and visible forces of Nature.

The lever set, I grasp and heave withal.

The point, D, performing a figure which is equal to an ellipse, with the error to be eliminated added, so neutralizing its effect on the motion of the fulcrum, F. The "lap" and "lead" are opened by the action of the valve lever acting as a lever, and the port opening is given by the incline of the curved slide in which the center of that lever slides, and the amount of this opening depends upon the angle given to that incline.

In side lever marine engines the attachments of the cylinder to the diagonal stay are generally made of too small an area, and the flanges are made too thick.

The string pulled upon the hook, (d) Fig. 2, and the end (c) acting with a lever advantage communicated its impulse to the bridge, (b) against which was placed the arrow.

The best brake by all odds, is that which fastens with a lever chain to the brake-bar.

It answered his least touch on the lever controls.

With an ordinary flow the water stands at a certain height in the funnel, and, while this is so, the lever remains balanced; but if from any accident the flow is diminished, the level of the water in the funnel descends, the other arm of the lever falls, and in doing so releases two springs, one of which in flying up rings a bell, and the other by detaching a counterweight closes a cock and stops the supply of water altogether.