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FANNING- MILLS. 
GRAFT'S PATENT. 
Plate VII. 
72. These Fan Mills, as shown in plate vii., are too well known throughout the world to 
require many remarks. It is sufficient to say that no mill approaches it in public estimation. 
It is made by the veteran pioneer in fan-mill improvement in this country, and his motto 
has always been, " make none but the best of its kind." 
By means of improvements invented and patented by Mr. I. T. Grant, this mill will chaff, 
clean and screen, fit for market, at one operation, wheat at the average rate of a bushel per 
minute, and separate grass seeds and refuse ; also deliver each distinct by itself. 
The Mills are made in the best style of modern manufacture and of the best materials, and 
warranted to operate to entire satisfaction. 
§ 73. There are six sizes. The three largest sizes are fitted (when desired), with pullies to 
run by horse power, and often used in connection with the thresher and vibrating separator, 
described in Sees. 28 to 30 — cleaning up the grain as fast as threshed. 
§ 74. These Mills measure about forty cubic feet, and weigh about one hundred and fifty to 
two hundred pounds each. 
For exportation or great transportation, they are readily taken apart, and six to eight mills 
can be packed and boxed up in the space occupied by one complete mill. Single mills can 
be boxed with nearly the same advantage. The item of boxing is extra. 
The improved patented Mill has seven seives and screens, and full directions for using. 
Fanning Mills, Grant's Patent, No. 1, 18 in. Shoe,.... $21 ; with Pulley for Power,.... $22 00 
Fanning Mills, Graft's Patent, No. 2, 20 in. Shoe 23 ; with Pulley for Power,. — 24 00 
Fanning Mills, Grant's Patent, No. 3, 22 in bhoe,.... 25 ; with Pulley for Power, 26 00 
Fanning Mills, Grant's Patent, No. 4, 24 in. Shoe, 27 ; with Pulley for Power, 28 00 
Fanning Mills, Grant's Patent, No. 5. 26 in. Shoe, 29 ; with Pulley for Power, 30 00 
Fanning Mills, Grant's Patent, No. 6, 28 in. Shoe,.... 81 ; with Pulley for Power,.. 32 00 
§ 75. The same sizes of Mills, made in the same style and by the same makers, without the 
patented improvements, but in all other respects equal to any other mills made in this coun- 
try, are sold for about 20 per cent less— of equal size, and have but five screens or sieves. 
PORTABLE FARM MILL. 
For Horse or Steam Power. 
Plate VII. 
§ 76. Many attempts have been made to produce a Portable Mill of moderate capacity and 
cost, so as to be within the reach of all those who have horse or other power with which to 
operate it, but among them all there are but a few that realize the desires of the inventors or 
purchasers, and that can be afforded at a price to warrant their purchase generally. 
The Mill represented in plate vii. is considered the best for general purposes. 
<\ 77. It has a conical horizontal cylinder of white cast-iron, fluted lengthwise, with its 
lower half covered with a fluted concave, also of white iron, corresponding in form to the 
cylinder, while its upper half is covered by a cap or concave of cast-iron, and about one 
inch from the cylinder, and is furnished inside with a series of spiral or diagonal flanges, 
which have a vibrating . motion when the Mill is in operation, and prevents clogging, and 
produces a current of air constantly through the Mill with the meal. 
The hopper and shoe are similar to those of an ordinary grist-mill ; the grain is fed through 
an opening in the cap to the smaller end of the conical cylinder, by which as it revolves, 
the grain is carried under the cylinder and in contact with the concave, partially grinding 
the grain, which as it is thrown up by the rising side of the cylinder, striking against the 
spiral flanges in the cap, and is thus thrown forward towards the larger end, when the cylin- 
der again takes it under and reduces it to a finer state, and throws it up again against the 
next flange in the cap, and so on the whole length of the cylinder until it is discharged. 
§ 78. It will be observed that the grain never passes around the cylinder more than once 
in the same place, and never stops on the way until it is discharged ; thus no power is 
wasted by over-grinding, nor is the meal injured by heating while in the mill. 
The concave is adjusted for coarse or fine grinding, by a thumb screw on the top of the mill. 
§ 79. At the smaller end of the cylinder there is a cob-cracker, into which corn in the ear 
may be fed by hand through a separate hopper ; this thoroughly cracks it, and delivers it to 
the grinding cylinder, where it is at once reduced to feed of any desired fineness. 
<i 80. The Mill may be adjusted to grind all kinds of grain any required fineness for feed or 
household use, except for flour, and will grind with Emery's Two-Horse Power, from four 
to eight bushels per hour, according to the kind of grain and fineness required. 
The cylinder is self-sharpening, and will grind many thousands of bushels before the con- 
cave becomes too much worn for use, and that is easily replaced, at a cost of three dollars. 
§ 81. It measures about twenty cubic feet. Price with hoppers, heavy balance-wheel and 
two pullies (one loose one), complete for use. 
For two horse or more power, weight 400 pounds.. $T5 
Large, for steam or water power, weight 500 pounds,. 125 
