| agriculture, planting - 1786 - Počet stránok 554
...by which the grain or feed is let fall at pleafure from the upper to the lower part of the feed box, from whence it is taken up by cups or ladles applied...motion, by means of the crank, and the horizontal lever hb. L, a fliding lever,' with a weight upon it, by means of which, the depth of the furrows or drills,... | |
| Sir Charles Coote - 1801 - Počet stránok 330
...new-conJlruftedjimplt Hand-Hoe. A, the upper part of the feed-box. B, the lower part of the fame box. C, a moveable partition, with a lever, by which the grain or feed...means of the crank, and the horizontal lever h h. L, a fliding lever, with a weight upon it, by means of which, the depth of the furrows or drills, and confequently... | |
| Robert Forsyth - 1804 - Počet stránok 620
...thereby into the furrow or drill made in the land by the coulter F, and covered by the rake or hariow G. H, a lever, by which the wheel I is lifted out...motion, by means of the crank, and the horizontal lever b, b. L, a Hiding lever, with a weight upon it, by means of which the depth of the furrows or drills,... | |
| James Malcolm (land surveyor.) - 1805 - Počet stránok 494
...coulter beam, which being' lifted on to the hook, at the end of the land, will bear the coulters out of the ground, while the machine is turning round at the end of the land, or on any other occasion, without any labour of the man who attends the machine, in supporting the... | |
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