USRE2103E - Gail borden - Google Patents

Gail borden Download PDF

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Publication number
USRE2103E
USRE2103E US RE2103 E USRE2103 E US RE2103E
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US
United States
Prior art keywords
milk
vacuum
pan
gail
heating
Prior art date
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Other languages
English (en)
Inventor
Gail Borden
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  • the subsequent heating of the vacuumprocess is found not yto ,causeany coating, or, at least, no injurious coating', of thevaccum-vessel.
  • this'- prepa tory heating changes vthe rrelation of the remaining alba-minous par- ,ticles to theo'ther the nutritive' properties of the'foimer are retained; and atthe same time, as they albunien of milk, equallyA with that of other bodies,has 'a strong,v aiinity for the oxygen of :the atmosphere, the effect of which is to-hasten-the decay ofeth milk, it is found that'thi the latter, to coagulate its albumenprevious to "centratedproduet.
  • B. is the vacuum-'boiler or Apan for concentrating the milk.
  • A is a pipe connected with said vacuum-boiler, and also with an air-'pump and condenser, as commonly employed by ⁇ sugar -refiners.'.
  • rlhe milk is boiled and 'concentrated inthe vesselA B by means of 'steam' or otherlheat applied in any of the well-known ⁇ methods adopted in connection with the use of an: air-pump and condenser..V
  • a steanrpipeis employed 'inside ofthe boiler it should be .'so coiled that'everypart of it may b'e reached by the "hands, 'sovthat it may bereadily and 'thoroughly cleansed. Both' a steam-pipe and -a jacket may. be. employed at the same time.
  • a thermometer isinserted into the boiler, and a vacuum-gage connected with it to indicate the' temperature of the contained iiuidand the extent ofv the vacuum.
  • The-milk to be j concentrated in vacuo is to -be first heated, as before stated, v'as soon as Kpracticable after' milking.
  • the discharge-pipe at the bottom of the boiler is provided with two cocks, plaeed ⁇ from two to four inches apart, according tofthe size of the pipe. Upon opening the upper cock the iliid will descend to rthe lowerone.
  • the upper cock may then be closed and the lower one opened, thus letting out a small quantity of the milk, from which the amount of concentration 'can be determined.
  • the proper degree ofcon. sistency is'best ascertained by cooling this trial portion of .milk-toa given temperatnre,. lwhich is quickest done in a tin vessel placed in a mixture of ice and salt, its contents being stirred: i j

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