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" ... on each side of the groove. This lateral passage communicates with a hole bored vertically into the wood, by a centre-bit ; and a small strip of the leather, being extended so as to cover this hole, is made, with the addition of some disks of metal,... "
A Compendium of the Course of Chemical Instruction in the Medical Department ... - Page 74
by Robert Hare - 1828 - 356 pages
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The Technical repository, by T. Gill, Volume 10

Thomas Gill (patent-agent) - 1771 - 422 pages
...block, so that a lateral passage may be left under the leather when nailed on each side of the groove. This lateral passage, communicates with a hole bored...metal, to constitute a valve, opening upwards. In the the bottom of the cask, there is another valve, opening upwards. A piston rod, passing perpendicularly...
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American Journal of Science and Arts, Volume 11

1826 - 446 pages
...block, so that when nailed, a lateral passage may be left under the leather, on each side of the groove. This lateral passage communicates with a hole bored...piston rod, passing perpendicularly through the pipe, from the handle ( H ,) is fastened near its lower end, to a hemispherical mass of lead (L.) The portion...
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Register of Arts, and Journal of Patent Inventions, Volume 4

Luke Herbert - 1827 - 524 pages
...block, so that a lateral passage may be left under the leather xvhon nailed on eacb side of the groove. This lateral passage communicates with a hole bored vertically into the wood, by a centre bit ; and a small strip of the leather, being extended so as to cover this hole, is made, with...
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The Engineer's and Mechanic's Encyclopædia: Comprehending ..., Volume 1

Luke Hebert - 1835 - 816 pages
...surface of the block, so that a lateral passage may be left when nailed on each side of the groove. This lateral passage communicates with a hole bored vertically into the wood by a centre bit ; and a small strip of leather being extended so as to cover this hole, is made, with the...
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The Engineer's and Mechanic's Encyclopædia, Volume 1

Luke Hebert - 1836 - 814 pages
...surface of the block, so that a lateral passage may be left when nailed on each side of the groove. This lateral passage communicates with a hole bored vertically into the wood by a centre bit ; and a small strip of leather being extended so as to cover this hole, is made, with the...
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Appleton's Dictionary of Machines, Mechanics, Engine-work, and ..., Volume 1

1873 - 1078 pages
...surface of the block, BO that a lateral passage may be left when nailed on each tide of the groove. This lateral passage communicates with a hole bored vertically into the wood by a centre-bit ; and a email strip of leather being extended so as to cover this hole, is made, with the addition of some...
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The American Journal of Science and Arts, Volume 11

1826 - 434 pages
...block, so that when nailed, a lateral passage may be left under the feather, on each side of the groove. This lateral passage communicates with a hole bored...piston rod, passing perpendicularly through the pipe, from the handle ( H ,) is fastened near its lower end, to a hemispherical mass of lead (L.) The portion...
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