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Scientific American, Vol. 57, No. 27 (December 1887) (1887)
leaf 9
ing the rake teeth, to gather the hay on the forks tion of guns would be insured. and deposit it in windrows, and in the upper head of strain of 67,000 lb. before giving way. The elongation each rake or tedder section is a spring to keep the was 13 per cent. Metallic Derivatives of Acetyl-acetone.… … said he discovered recently weaker. LANDIS COMBINED RAKE AND TEDDER-RAKING THE HAY. © 1887 SCIENTIFIC AMERICAN, INC.Patents · Railroad · Machine · Patented · Scientific American · Phonograph · Perspective view · Hot water · Electric light · Ground glass · American railroad · Sturtevant mill · Sewing machine · War ship · Floor plans
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