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" Wlten two bodies are farced from one, another by means of a wedge, in a direction parallel to its back. RULE. As the length of the wedge is to half its back or head, so is the resistance to the power. EXAMPLE. The breadth of the back or head of the wedge... "
Improvement to Palmer's Endless Self-computing Scale and Key: Adapting it to ... - Σελίδα 70
των John E. Fuller - 1846 - 72 σελίδες
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History and Progress of the Steam Engine: With a Practical Investigation of ...

Elijah Galloway - 1829 - 859 σελίδες
...by means of a wedge, in a direction parallel to in back. Rule. As the length of the wedge is to half its back or head, so is the resistance to the power. Example. The breadth of the back or head of the wedge being 3 inches, and the length of either of itt inclined sides 10...

History and Progress of the Steam Engine: With a Practical Investigation of ...

Elijah Galloway - 1836 - 863 σελίδες
...of 150 Ibs. As 10 : 1J :: 150 : 22Jlbs. — answer. CASE 3. When only one of the bodies is moveabl*. Rule. As the length of the wedge is to its back or...as in the last example. As 10 : 3 : : 150 : 45 Ibs answer. SCREW. The screw is a cord- wound in a spiral direction round the periphery of a cylinder,...

Norris's Hand-book for Locomotive Engineers and Machinists

Septimus Norris - 1852 - 302 σελίδες
...22£ Ibs-, AnsCASE 2- — When only one of the bodies is movableRULE — As the length of the weight is to its back or head, so is the resistance to the powerEXAMPLE — The breadth, length, and force, the same as in the last exampleAs 10 : 3 : : 150 :...

norris's hand-book for locomotive engineers and machinists

septimus norris - 1854
...Ibs., Ans. CASE 2. — When only one of the bodies is movable. RULE. — As the length of the weight is to its back or head, so is the resistance to the...last example. As 10: 3:: 150: 45 Ibs., Ans. SCREW. The screw is an inclined plane, and we may suppose it to be generated by wrapping a triangle, or an...

The Artillerists̓ Manual, and British Soldiers̓ Compendium

Frederick Augustus Griffiths - 1854 - 331 σελίδες
...means of a wedge, in a direction parallel to its back. Rule. — As the length of the wedge, is to half its back, or head, so is the resistance, to the power. Example. — The breadth of the back, or head of the wedge, being three inches, and the length of either of its inclined sid«8...

SEPTIMUS NORRIS

NORRIS'S HAND-BOOK FOR LOCOMOTIVE ENGINEERS AND MACHINISTS - 1854
...22J Ibs., Ans. CASE 2.@ When only one of the "bodies is movable. RULE.@As the length of the weight is to its back or head, so is the resistance to the power. EXAMPLE.@The breadth, length, and force, the same as in the last example. As 10: 3:: 150: 45 Ibs.,...

The Mechanic's, Machinist's, and Engineer's Practical Book of Reference ...

Charles William Hackley - 1855 - 504 σελίδες
...by meam of a wedge, in a direction parallel to its back. RULE. As the length of the wedge is to half its back or head, so is the resistance to the power. EXAMPLE. The breadth of the back or head of the wedge being 3 inches, and the length of either of its inclined sides 10...

The Mechanic's, Machinist's, and Engineer's Practical Book of Reference ...

Charles Haslett - 1855
...means of a wedge, in a direction parallel to its back. RULE. As the length of the wedge is to half its back or head, so is the resistance to the power. EXAMPLE. The breadth of the back or head of the wedge being 3 inches, and the length of either of its inclined sides 10...

the mechanics, machinists, and engineer's practical book of reference

charles haslett - 1856
...means of a wedge, in a direction parallel to its back. RULE. As the length of the wedge is to half its back or head, so is the resistance to the power. EXAMPLE. The breadth of the1 back or head of the wedge being 3 inches, and the length of either of its inclined sides 10...

A Manual for Naval Cadets

John McNeill Boyd - 1857 - 471 σελίδες
...means of a wedge, in a direction parallel to its back. Rule. — As the length of the wedge is to half its back or head, so is the resistance to the power. Example. — The breadth of the back or head being 3 inches, and the length of either of its inclined sides 10 inches, required...




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