. The book of the farm : detailing the labors of the farmer, steward, plowman, hedger, cattle-man, shepherd, field-worker, and dairymaid. Agriculture. THE TRANSMISSION OF THE FURROW-SLICE. the mould-board has reached the line of section, the slice will have attained its final position mf qr, lying at an angle of 45"^, and resting on the previously turned-up slice. (582.) The process of turning over the slice, therefore, appro.\imates to a uniform motion, pro- vided the parts of the plow destined to perform the operation are properly constructed. The uai- formity, however, is not directly
. The book of the farm : detailing the labors of the farmer, steward, plowman, hedger, cattle-man, shepherd, field-worker, and dairymaid. Agriculture. THE TRANSMISSION OF THE FURROW-SLICE. the mould-board has reached the line of section, the slice will have attained its final position mf qr, lying at an angle of 45"^, and resting on the previously turned-up slice. (582.) The process of turning over the slice, therefore, appro.\imates to a uniform motion, pro- vided the parts of the plow destined to perform the operation are properly constructed. The uai- formity, however, is not directly as the rectilineal pi-ogress of the plow, but must be deduced from a different function to be afterward explained. And, though the process here described refers only to an indefinitely short slice, it is only necessary to conceive a continuity of such short slices, going to form an entire furrow-slice, extending to the whole length of the field; and the length- ened furrow-slice, being possessed of sufficient tenacity to admit of the requisite and temporary extension -svhich it undergoes, while the plow is passing under and turning it over, is again com- pressed into its original length, when laid in its ultimate position. The furrow-slice, therefore, under this process, may not inaptly be compared to the motion of a wave in the ocean, keeping in view that the wave of ttie slice is carried forward in a horizontal direction, whereas the ocean w^ave is vertical. But in both cases, though the wave travels onward, there is no translation of parts in the direction in which it seems to travel. In the case of the furrow-slice movement, it appears as in the annexed perspective view, fig. 105, where ab \b the edge of the land as cut by Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stephens, Henry, 1795-1
Size: 1455px × 1717px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1850, booksubjectagriculture, bookyear
