Builder's hardware; a manual for architects, builders and house furnishers . ractically unchanged. It will bereadily seen then how valuable a metal this is. Unfortunatelyits degree of elasticity is less than that of brass, and the springsrequired for a lock when of phosphor-bronze are sometimes solarge as to be impracticable. It is, however, by all odds thebest material for springs and is used by the Hopkins & Dickin-son Manufacturing Co. in their best grades of locks. Aluminium has recently appeared as a possible substitute for Aluminium,bronze. It is a metal not unlike lead or platinum in ap
Builder's hardware; a manual for architects, builders and house furnishers . ractically unchanged. It will bereadily seen then how valuable a metal this is. Unfortunatelyits degree of elasticity is less than that of brass, and the springsrequired for a lock when of phosphor-bronze are sometimes solarge as to be impracticable. It is, however, by all odds thebest material for springs and is used by the Hopkins & Dickin-son Manufacturing Co. in their best grades of locks. Aluminium has recently appeared as a possible substitute for Aluminium,bronze. It is a metal not unlike lead or platinum in appear-ance, but is very light, having a specific gravity of , equalto about one-third that of steel and one-fourth that of silver. It is very strong, will not tarnish, and is almost indestructi-ble. It melts at a comparatively low temperature and can becast with sharp lines. Copper, brass, and bronze are improvedin strength, color, and durability by the addition of ten percent of aluminium. It is, however, a metal of the future and isnot yet in the hardware CHAPTER n. NAILS.
Size: 2064px × 1211px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookidbuildershard, bookyear1890
