 sweating," the character of the hides and the temperature are essential, but ever-varying, considerations. As a general rule, however, the milder the process of preparing the hides for the bark, the better. Unnecessarily severe or prolonged treatment...  The Art of Tanning Leather ... - Էջ 116David H. Kennedy - 1857 - 262 էջԱմբողջությամբ դիտվող - Այս գրքի մասին
 | 1847 - 652 էջ
...considerations. As a general rule, however, the milder the process of preparing the hides for the bark, the better. Unnecessarily severe or prolonged treatment is inevitably attended with a loss of gelatine, and a consequent loss of weight and strength in the leather. Too high a temperature is particularly... | |
 | 1847 - 906 էջ
...considerations. As a general rule, however, the milder the process of preparing the hides for the bark, the better. Unnecessarily severe or prolonged treatment is inevitably attended with a loss of gelatine, and a consequent loss of weight and strength in the leather. Too high a temperature is particularly... | |
 | 1847 - 1230 էջ
...considerations. As a general rule, however, the milder the process of preparing the hides for the bark, the better. Unnecessarily severe or prolonged treatment is inevitably attended with a loss of gelatine, and a consequent loss of weight and strength in the leather. Too high a temperature is particularly... | |
 | American Institute of the City of New York - 1848 - 854 էջ
...considerations. As a general rule, however, the milder the process of preparing the hides for the bark, the better. Unnecessarily severe or prolonged treatment is inevitably attended with a loss of gelatine, and a consequent loss of weight and strength in the leather Too high a temperature is particularly... | |
 | Julia de Fontenelle (Jean-Sébastien-Eugène) - 1852 - 592 էջ
...considerations. As a general rule, however, the milder the process of preparing the hides for the bark, the better. Unnecessarily severe or prolonged treatment is inevitably attended with a loss of gelatine, and a consequent loss of weight and strength in the leather. Too high a temperature is particularly... | |
 | Nahum Capen - 1852 - 594 էջ
...considerations. As a general rule, however, the milder the process of preparing the hides for the bark, the better. Unnecessarily severe or prolonged treatment is inevitably attended with a loss of gelatine, and a consequent loss of weight and strength in the leather. Too high a temperature is particularly... | |
 | Julia de Fontenelle (Jean-Sébastien-Eugène) - 1852 - 592 էջ
...considerations. As a general rule, however, the milder the process of preparing the hides for the bark, the better. Unnecessarily severe or prolonged treatment is inevitably attended with a loss of gelatine, and a consequent loss of weight and strength in the leather. Too high a temperature is particularly... | |
 | David H. Kennedy - 1857 - 266 էջ
...hydrometer is then plunged in the liquor, and the point to which it sinks therein, say b, is cai eiully and accurately marked upon the scale, and rated as...less and less handling, as the process -of tanning progresses—for the more they become tanned, the slower will one per cent, of bark. It is very easy,... | |
 | 1864 - 622 էջ
...considerations. As a general rule, however, the milder the process of preparing the hides for the bark, the better. Unnecessarily severe or prolonged treatment is inevitably attended with a loss of gelatine, and a consequent loss of weight and strength in the leather. Too high a temperature is particularly... | |
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