Information to Persons Having Business to Transact at the Patent OfficeU.S. Government Printing Office, 1880 |
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Página 54
... charcoal to eliminate from illuminating - gas those substances which are considered impurities , in charging the charcoal with a substance which will prevent it from depriving the gas of illuminants , and in passing the gas to be ...
... charcoal to eliminate from illuminating - gas those substances which are considered impurities , in charging the charcoal with a substance which will prevent it from depriving the gas of illuminants , and in passing the gas to be ...
Página 55
... charcoal wet with water alone will suffice , air being introduced into the gas . The oxygen of the air partly unites with the sulphur to form soluble salts , and the rest combines totally with the hydrogen of the sulphureted and other ...
... charcoal wet with water alone will suffice , air being introduced into the gas . The oxygen of the air partly unites with the sulphur to form soluble salts , and the rest combines totally with the hydrogen of the sulphureted and other ...
Página 56
... charcoal a substance which will of itself decompose sulphureted hydrogen con- tained in gas , such as oxide of iron , tin , manganese ore , & c . When the gas issues from my purifiers it is entirely free from ammo- niacal and sulphur ...
... charcoal a substance which will of itself decompose sulphureted hydrogen con- tained in gas , such as oxide of iron , tin , manganese ore , & c . When the gas issues from my purifiers it is entirely free from ammo- niacal and sulphur ...
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Printed claims of current issues may be | 6 |
Purchaser not liable for infringement on article made prior to | 12 |
Rejected applications renewal of 4897 11 | 27 |
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