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" It is drawn by a horse immediately after the plough, pressing two furrows at once, and going twice over each furrow. "
A Manual of the Principles and Practice of Road-making: Comprising the ... - Page 295
by William Mitchell Gillespie - 1871 - 464 pages
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The Penny Cyclopaedia of the Society for the Diffussion of Useful ..., Volume 2

1834 - 576 pages
...This instrument consists of two very heavy cast-iron wheels, aa, with angular edges, set on an axle, at a distance from each other equal to the width of the furrows, and a lighter wheel, 6, to keep the instrument vertical. It is drawn by a horse immediately...
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Journal of the Franklin Institute of the State of Pennsylvania for the ...

Meteorology - 1835 - 908 pages
...suitable material; there are deep grooves cut in each roller; all the grooves are precisely alike, and at a distance from each other equal to the width of the palm leaf after it is split into strips for braiding. The grooves in the upper roller are directly...
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The Repertory of patent inventions [formerly The Repertory of arts ..., Volume 4

1835 - 428 pages
...passes between two small brackets, 14, fitted to and sliding on the doctor, s, and best seen in fig. 7, at a distance from each other equal to the width of the web, and connected by a wire, 15, in the space between which and the doctor the web passes to put the...
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The Saturday Magazine, Volume 13

Periodicals - 1839 - 272 pages
...now cut exactly square by means of a small tool formed of two narrow slips of ivory fixed in a frame at a distance from each other equal to the width of the leaf, being lifted from the cushion on which they arc cut by means of a pair of tweezers, fig. 4. They...
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A Practical Treatise on Dyeing and Calico-printing: Including the Latest ...

Edward Andrew Parnell - Calico-printing - 1846 - 770 pages
...passes between two small brackets, 14, fitted to and sliding on the doctor, s, and best seen in fig. 7, at a distance from each other equal to the width of the web, and connected by a wire, 15, in the space between which and the doctor the web passes to put the...
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Iconographic Encyclopaedia of Science, Literature, and Art, Volume 4

Johann Georg Heck - Encyclopedias and dictionaries - 1851 - 814 pages
...ends and left to itself. If now in lieu of the thread, two chains or wire cables be imagined suspended at a distance from each other equal to the width of the bridge, with the roadway suspended horizontally by rods of different lengths from these cables, we...
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A Manual of the Principles and Practice of Road-making: ...and Rail-roads

William Mitchell Gillespie - 1852 - 400 pages
...materials for embankment are at hand, a cheap and efficient substitute will be formed by a series of timber trusses. Piles of 15 inches diameter, not sharpened,...trusses are employed, according to the height of the superstructure above the surface of the ground. After the railroad has been thus constructed, it may...
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Young Scientist: A Practical Journal for Amateurs, Volume 4

1852 - 814 pages
...and left to itself. If now, in lieu of the thread, two chains or wire cables be imagined, suspended at a distance from each other equal to the width of the bridge, with the roadway suspended horizontally by rods of different lengths from fhese cables, we...
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The Dictionary of the Farm

William Lewis Rham - Agriculture - 1855 - 522 pages
...This instrument consists of two very heavy castiron wheels, aa, with angular edges, set on an axle, at a distance from each other equal to the width of the farrows, and a lighter wheel, 6, to keep the instrument vertical. It is drawn by a horse immediately...
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A Dictionary of Arts, Manufactures and Mines: Containing a Clear ..., Volume 1

Andrew Ure - Industrial arts - 1856 - 1140 pages
...press-drill. This instrument consists of two very heavy cast-iron wheels, with angular edges, set on an axle, at a distance from each other equal to the width of the furrows, and a lighter wheel to keep the instrument vertical. It it drawn by a horse immediately after...
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