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Scientific American, Vol. 2, No. 3 (1860) (1860)
leaf 7
acing the loops nished with similar slats slid- upon the hooks of the spiral ing frecly between the slats, springs, and when the sack- j. The square ends of the ing becomes stretched by use, moving slats coming against NEW PATENT SHINGLE MACHINE. it may be tightened by catch- the end of the rived… … motion from the lever, E, application. shown in dotted lines, which HATCH’S IMPROVED BED BOTTOM. The patent for this inven-~ is attached to one of the tion was issued, through the The patent for this invention was issued through the! & Co., Strafford, Vt. © 1860 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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