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Βιβλία Βιβλία 71 - 80 από 187 για These are usually accounted six in number, viz. the Lever, the Wheel and Axle, the....
" These are usually accounted six in number, viz. the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. "
A Practical Treatise on Arithmetic ...: Combining the Useful Properties of ... - Σελίδα 246
των George Leonard (jr.) - 1841 - 340 σελίδες
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The Modern Builder's Guide

Minard Lafever - 1849 - 119 σελίδες
...natural strength without them. The simple machines, called Mechanical powers, are six in number ; viz. the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw ; and of these all the most compound engines consist. The general principle is,...

A new universal etymological technological, and pronouncing ..., Τόμος 2

John Craig (F.G.S.) - 1849
...mechanics in philosophy ; acting by physical power. Mechanical powers, or elementary machines, are the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw: to which some writers have added the rope-machine and the balance. All these,...

Rudimentary Mechanics ...

Charles Tomlinson - 1849
...resistance. In the composition of machines it is usual to speak of six mechanical porcers ;* namely, the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw; although in reality these contrivances are but applications of the principle...

American Common-school Arithmetic ...

Rufus Putnam - 1849
...complicated, are formed by combining a few simpler machines, commonly called the " Mechanic Powers." They are, the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. In any machine, the force or original prime mover is called thePowER. The resistance...

The National Arithmetic on the Inductive System: Combining the Analytic and ...

Benjamin Greenleaf - 1850 - 360 σελίδες
...power. The body which receives motion from another is called the weight. The mechanical powers are six, the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Screw, and the Wedge. THE LEVER. about a fixed point, called its I /\ The lever is a bar, movable fulcrum or prop. It is in theory...

The Treasury of Knowledge and Library of Reference: A million of facts [The ...

1850
...and La Grange. The mechanical powers may be reduced to three, but they are usually expressed as six, the lever, the wheel and axle, the pulley, the inclined plane, the screw, and the wedge. In a single moveable pulley the power gained is doubled. In a continued combination the power is twice...

The Treasury of Knowledge and Library of Reference: A million of facts [The ...

1850
...and La Grange. The mechanical powers may be reduced to three, but they are usually expressed as six, the lever, the wheel and axle, the pulley, the inclined plane, the screw, ana the wedge. In a single moveable pulley the power gained is doubled. In a continued combination...

Rudimentary dictionary of terms used in architecture [&c.].

John Weale - 1850
...are supposed to be perfectly rigid. The mechanical powers, sometimes described as six in number, viz. the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw, are reducible to two only, viz. the lever and the inclined plane, in each of...

The Works of thomas dick, LL.D

1850
...of a few bars of thin iron ?" And when we consider that all the mechanical powers may be reduced to the lever, the wheel and axle, the pulley, the inclined plane, the wedge and the screw, how astonishing are the forces exerted, and the effects produced, by their various...

Rudimentary Dictionary of Terms Used in Architecture, Civil ..., Τόμος 3

John Weale - 1850 - 564 σελίδες
...supposed to - be perfectly rigid. The mechanical powers, sometimes described as six in number, viz. the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw, are reducible to two only, viz. the lever and the inclined plane, in each of...




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