. Artificial incubation and incubators ... foregoing description, this machine THE PARREY INCUBATOR. lid has no regulator. While it might run with comparatively uniformtemperature in the climate of California, in the country east ofthe Eocky Mountains, it would be absolutely impossible to con-trol the temperature within ten or more degrees, unless it wasconstantly watched. We understand the maehine has accom-plished good work in the hands of its inventor. It was patentedJanuary 20th, 1883. THE PARRET INCUBATOR (Fig 92.) hails from Michigan. It is a Hot-Air Machine. The followingdescription is
. Artificial incubation and incubators ... foregoing description, this machine THE PARREY INCUBATOR. lid has no regulator. While it might run with comparatively uniformtemperature in the climate of California, in the country east ofthe Eocky Mountains, it would be absolutely impossible to con-trol the temperature within ten or more degrees, unless it wasconstantly watched. We understand the maehine has accom-plished good work in the hands of its inventor. It was patentedJanuary 20th, 1883. THE PARRET INCUBATOR (Fig 92.) hails from Michigan. It is a Hot-Air Machine. The followingdescription is taken from the circular of the manufacturer : The oven or egg-chamber is a wooden frame covered with theheaviest straw-board, both inside and outside, with a space be-tween of an inch tosss^^ „„ll,„„| and a half, which simply as a dead- is left on the sidesair space, but onnon - conductingThe doors, oftwo, close againstjams, thus mak-air-tight joint,doors is a win-which the ther-seen withoutoven. oven is the heat-cylinder of iron,. Fig. 92. THE PARRY INCUBATOR. top is filled withmaterial,which there areindia rubbering a perfectlyIn one of thedow, throughmometer may beopening theBeneath theer, a compound in fact three cyl-inders, so arranged that though no smoke or fumes from thelamp can get to the eggs, there is a current of hot, pure air, con-tinually ascending into the oven, and in so ascending it has topass through a zinc tube, from which it is discharged near thetop of the oven, from whence it is, by means of a radiator aboveand (in the large ovens) a distributer lower down, brought downto the eggs in such a way as to give a very uniform heat in allparts of the oven. The lamp is below the heater, and for the smaller sizes ofmachines, is a lamp of tin, made expressly for the purpose. Forthe larger machines I use an oil stove of the most approved style. In the zinc tube above mentioned, is a valve or damper, sohung, that as the regulator expands with the increase of h
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectincubat, bookyear1883
