. Les premiers principes de l'agriculture [microform]. L'agriculture ; l'Agriculture. PRINCIPLKS 232 PREMIÈRE DE L'AGRICULTURE. (5) Les liens familiaux. Les liens familiaux peuvent consister en des bandes (2 pouces x 6 pouces), l'exécution de l'ensemble de l'accord des goujons d'un côté à la cime des goujons sur le côté opjxjsite, leurs extrémités heing immédiatement sous les plaques. (6) le toit. Les chevrons de la toiture ne peut être faite au printemps après les plaques au-dessus des goujons, et répondre à un demi-pas de la manière habituelle. Le revêtement de la toiture devrait être complètement étanches. (7) Combler le cramponnage. Afin de rendre le cadre de

• Contributeur: Library Book Collection / Alamy Banque D'Images
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. The first principles of agriculture [microform]. Agriculture; Agriculture. 232 FIRST PRINCIPLKS OF AGRICULTURE. (5) The cross-ties. The cross-ties may consist of planks (2 inches x 6 inches), running across from the lops of the studs on one side to the tops of the studs on the opjxjsite side, their ends heing immediately under the plates. (6) The roof. The rafters of the roof may be made to spring from the plates above the studs, and meet in a half pitch in the usual way. The covering of the roof should be completely weather proof. (7) Bridging the studding. In order to make the framework of the silo still stronger, so as to prevent all possibility of bulging when the silo is filled with ensilage, the studding should be * * bridged." This '' bridging " consists in spiking planks between the studs, placed as nearly as pos- sible in a hori- zon tal line around the four walls of the. Fig. 77. Showing the construction of the rafters, rib- bon, and underbracing of a silo, when cross-ties are not used. building. (The arrangement of the studding, the sills, the plates, the cross ties, and the bridging, can all be seen in Figure 76.) Note.—Instead of the plates, cross ties, and roof, as described above, a different plan of construction is sometimes followed, which secures as much strength, and permits of greater convenience in filling the silo, and in getting at the stored ensilage when the silo is filled. The studs at the top are held in place by a "ribbon" (i inch x 8 inches) let into the inside edges of the studs at the top. This ribbon passes all round the four sides of the frame- work. The rafters (2 inches x 6 inches) instead of springing from the plates, spring directly from the studs, against which at the tops they are spiked, and are made to meet at the top in a three-quarter pitch. The "ribbon'' above described, is let into the lower edge of each rafter by means of a notch, and thus helps to keep the rafters in place also. When the raf

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