. Elementary lessons in the physics of agriculture. Agricultural physics. [from old catalog]. 176 feet in diameter. This is a circle five feet in diameter made of two thicknesses of two inch stuff spiked together. The roof boards are pieces of fencing sawed to the length of the slant height of the roof and then ripped in two di- agonally at the mill. After fixing the circle in place the roof boards are nailed directly to it and to the plate when the wdiole be- comes self-support- ing. For larger silos two or more circles may be used and the roof made with- out rafters in the same way. Every si
. Elementary lessons in the physics of agriculture. Agricultural physics. [from old catalog]. 176 feet in diameter. This is a circle five feet in diameter made of two thicknesses of two inch stuff spiked together. The roof boards are pieces of fencing sawed to the length of the slant height of the roof and then ripped in two di- agonally at the mill. After fixing the circle in place the roof boards are nailed directly to it and to the plate when the wdiole be- comes self-support- ing. For larger silos two or more circles may be used and the roof made with- out rafters in the same way. Every silo roof should be provided Fig. 18. wdth , a ventilator This may be an ordinary cupola or it may be made of gal- vanized iron, as shown in Fig. 16, and provided with a damper to be closed during cold weather to protect the silage from freezing. The ventilator is necessary in order to insure a rapid drying of the w^alls and inside of the lining as fast as the silage is removed so as to avoid de- cay. The feeding doors should form a series one above the other placed about three feet apart as shown in Fig. 16. They should be about two feet wide and three and one-half to four feet high. The doors may be made and hung as shown in Fig. 19. Here there are three thicknesses of matched flooring with two layers of tar paper betw^een nailed to the tw^o cleats. Each door swings on a pair of six-inch T hinges, and is fastened shut by two strips of band iron bolted to the cleats and shutting down over two half inch bolts reaching through the wall of the silo at. 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 King, F[ranklin] H[iram], 1848- [from old catalog]. [Madison, Wis. ] State journal printing company
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Keywords: ., bookcentury1800, bookcontributorthe, bookdecade1890, bookyear1891
