 | Francis Lieber, Edward Wigglesworth, Thomas Gamaliel Bradford - 1831 - 620 páginas
...provided with a stop-cock, by which the water may be drawn off when it has become acidified or dirty. Such a trough is best made of japanned copper, and supported...wooden frame, so as to stand about 39 inches from the floor: or it and the neater sort of apparatus, from the dust and dirt which are constantly moving and... | |
 | Encyclopaedia Americana - 1831 - 608 páginas
...water may be drawn off when it has become acidified or dirty. Such a trough is best made of jiipanned copper, and supported in a wooden frame, so as to stand about 39 inches from the floor ; or it may be made of wood, and lined with sheet leai Unless the establishment is very extensive,... | |
 | Francis Lieber, Edward Wigglesworth - 1835 - 608 páginas
...with a stop-cock, by which the. water may be drawn off when it has become acidified or dirty. Such a trough 'is best made of japanned copper, and supported...wooden frame, so as to stand about 39 inches from the floor; or it may be made of wood, and lined with sheet lead. Unless the establishment is very extensive,... | |
 | Francis Lieber, Edward Wigglesworth - 1838 - 618 páginas
...with a stop-cock, by which the water may be drawn off when it has become acidified or dirty. Such n trough is best made of japanned copper, and supported...wooden frame, so as to stand about 39 inches from the Boor; or it may l)e made of wood, and lined with sheet lead. Unless the establishment is very extensive,... | |
 | David M. Knight - 1998 - 692 páginas
...it will be found sufficiently large for almost every purpose. 318 WATER PNEUMATIC TROUGH. 728. Such a trough is best made of japanned copper, and supported...about 39 inches from the ground. Two depressions, like smsill wells, should be made in the shelf, each about seven inches long, two wide, and one and a half... | |
| |
Such a trough is best made of japanned copper, and supported in a wooden frame, so as to stand about 39 inches from the ground. Two depressions like small wells, should be made in the shelf, each about seven inches long, two wide, and one and a half deep... 