THE ARCHARD LEVER POWER.

Our attention has been invited to an invention of a very remarkable

character, which, if realising the claims asserted in its behalf, will

fully equal, if it does not far exceed in importance, any discovery of

the age. It consists in an entirely new application of the power of

the lever, an application capable of being multiplied to an almost

unlimited extent. To render our account of this new marvel quite

incredible in the outset, we will state on the inventor's authority,

that the steam of an ordinary tea-kettle may be made to produce

sufficient momentum to propel a steamship of any size across the

Atlantic! Or, again, one man may exert a power equal to that of a

thousand horses, and that, too, without the aid of steam or any

auxiliary other than his own stout arm. It overcomes or disproves the

heretofore-received principle in mechanics, of not gaining power

without a loss of speed. Archimedes, in declaring his ability to move

the world, if he had a suitable position for his fulcrum, conveyed an

apt illustration of the measureless power of the lever when exerted to

its fullest extent. This fullest extent Mr Archard claims to have

attained in the action of a succession of parallel levers--one lever

upon a second, the second upon a third, the third upon a fourth, and

so on progressively; each succeeding lever of the same length as the

first, and all operating simultaneously, the one lever upon, and with

all the others. This marvellous property of multiplying leverage, is

attained without any diminution in speed, since, to whatever extent

the additional levers may be carried, the entire succession is moved

as one compact mass, operated upon at the same instant, the last lever

moving at the same moment with the first. This simultaneous movement

of a succession of parallel levers, acting the one upon the other,

with a force successively increasing and in geometrical proportion, is

the grand desideratum, the _ne plus ultra_, in the science of

mechanics, which the inventor professes to have achieved. To place

this multiplied _ad infinitum_ power in its plainest light, we may

observe that a given power--say that of one horse--will impart to a

lever of a given dimension a sixteenfold power; that sixteenfold power

gives the succeeding lever sixty-fourfold increase; that to the third

lever, 256; that gives to the fourth lever an increase of 1024; while

this fourth lever, with its largely increased ability, gives to the

fifth lever the enormous increase of 4096. If, therefore, this

succession of leverage is rightly stated, a single horse is enabled to

exert the power of four thousand and ninety-six horses!--_American

Courier_.

Chambers's Edinburgh Journal, No. 462 Volume 18, New Series, November 6, 1852 · 第 10 / 15 题