US446365A - Fan nino-mill - Google Patents

Description

(N oModel.) 2 sheets-sneet i.

J. PBLZBR an J. WEREL. PANNING MILL.

No. 446,365. f Patented Peb. 1o, 1891.

(lim Model.) l A 2 sheets-sheen 2Q J. PBLZER 8v J. 'WEREL FANNNG MILL.

No. 446,365. Patented 11615.10, 1891..

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NITED STATES PATENT OFFICE.

JOHN PELZER AND JOHN VEREL, OF l-IUMBIRD, VISOONSIN.

FANNlNG-NIILL.

SPECIFICATION forming part of Letters Patent No. 446,365, dated February 10, 1891.

Application led May 24, 1890. Serial No. 353,089. (No model.)

To a/ZZ whom, it may concern/.-

Be it known that we, JOHN PELZER and JOHN VEREL, citizens of the United States, i

residing at Humbird, in the county of Clark and State of lllisconsin, have invented a new and useful Fanningdllill, of which the following is a specification.

This invention relates to fanningmil1s 5 and it hasfor its object to construct a device of this class which shall be simple, inexpensive, and easily operated.

lith these ends in view the invention consists in the improved construction, arrangement, and combination of parts, which will be hereinafter fully described, and particularly pointed out in the claims.

In the drawings hereto annexed, Figure 1 is a side view of our improved fanning-mill. Fig. 2 is a side view taken from the opposite side of the same. Fig. 3 is a longitudinal' sectional view. Fig. et is a vertical transverse sectional view taken on the line et 4 in Fig. 3. Fig. 5 is a detail view of the end of the shaft 13, having the double cam 21. Fig. Gis a diagrammatic elevation of the shoe, showing its movement when empty and when weighted down by grain.

Like numerals of reference indicate like part-s in all the figures.

The casing of this farming-mill comprises the sides 1 and 2, the fan-case 3, and the rear end et, all of which are suitably constructed and connected by means of suitable braces and bythe top pieces 5 and legs or vertical Cleats or supports 7 are provided, upon which a drawer S,inserted through an opening in the side 2 of the casingis supported. The top 5 of the casing haslan opening 9, which supports the hopper 10, and the sides of that portion of the casing, which constitutes the fan-case are provided in the usual manner with openings 11 for the admission of air. The openings 11 are bridged by the front legs or uprights 6, which afford bearings for the shaft 13, carrying the fan, which in the present instance is composed of five radial arms 14, mounted equidistantly in the shaft 13 and each carrying a wing or leaf 15. The side 1 of the casing is provided withl a supplemental frame 16, forming bearings for an extension of the fan-shaft 13, which is provided with a pinion 17, meshing with a spurprovided at its outer end with a crank 20, by

means of which it maybe conveniently turned.

The pinion 17, which in the drawings hereto annexed lhas been shown as being in the nature of a skeleton wheel, is provided at its inner end with a double cam 21, which engages one end of a lever 22, which is pivoted in a suitable bracket or bearing 23, attached to the side 1 of the casing. The function of this lever will be presently more fully described.

The top of the casing is provided directly in front of the hopper 10 with slots 24. S traps 25, which are secured to the upper side of the top 5 of the casing, are extended through the slots 24, and to the said straps is attached the front end of the screen-frame 2G. The latter is provided directly below the hopper with an inclined iioor 27, and below and in rear of said door it has a sieve 2S. The rear end of the :door 27 has a stud 29, which is connected by a cord 30 with ashaft 31, which is journaled transversly in the sides of the casing, and which is provided at one end with a ratchetwheel 32, engaging the pawl 33which is pivoted tothe side of the casing. It will be seen that by turning the shaft3l the screen-frame may be adjusted to any desired inclination and retained at such adjustment by the. Q11- gagement of the ratchet-wheel 32 with the pawl 33.

34 andalower solid portion 35, inclining from the tail end to the frontend of the casing and passing under the fan-casing, so that the cleaned grain may pass out under the said fan-casing at the front end of the machine. Under the screen 34 at the tail end of the machine is arranged a downwardly and forwardly inclined bottom board 36, which conveys the lighter grain into the drawer 8.

All the above features are old and well known, and are merely shown and described in order to bring out the general construction of a fanning-mill, to which our improvements are applicable. The latter will now be de scribed.

Below the screen-frame, or, as it is some;v times termed, the shoe 26, is arranged the f inclined bottom, which is composed of'a screen IOO lthe grain into the casing.

Suitably attached to one of the legs at the side 2 ofthe casing is a spring 37, the upper end of which is connected by a cord or chain 38 with one side of the shoe or screen-frame 26, the cord 3S passing through a slot 39 in the side of the casing. The Opposite side of the casing is provided with a slot 40, through which extends a cord or chain 4l, which connects the side of the shoe with one end of the lever 22.

The operation of the device is as follows: The grain which is to be cleaned is fed into the .hopper l0, which may be provided with suitable means for regulating the passage of A rotary motion is communicated to the fan-shaft by the inechanism herein described, and the cam projections 2l upon the pinion 17 will engage the leverZQ, which, in conjunction with the spring 37, will serve to impart a vibrating motion to the shoe, whereby the grain is shaken down, fir-st onto the screen 28 and thence onto the screen 3.4, being meanwhile exposed to the blast of air from the fan, whereby the dust, chaff, and lighter impurities are blown out through the tail end of the machine. The heavy grain passes from the screen Si onto the inclined plane 3.5., over which it escapes under the fan-case at the front end of the machine. The inferior grain passes over the inelined plane 36. and into the drawer.v The casing of the machine is provided with handles 42, by means of which it may be readily car= ried from place to place. Y

The vibrating motion above mentioned is somewhat peculiar, and the devices for prof ducing it form the essential features ofthe present invention. The upper end ofr the les ver 22 is raised periodically as its lower end is depressed by the cam 2l, and as the shoe 2.6 is connected by a cord 4l at one side with said upper end that side of the shoe will rise therewith. The other side of the shoe is, however, connected' by a cord .58 with the spr-ing 3?, whose end does not rise and fall. Hence the motion imparted to the shoe will be diff ferent at the. different sides' thereof, the lever side moving considerable and thespr-ing side but little, the spring holding the shoe in a' practically straight `line between the cords,

asv seen at a and Z). in Fig. (5; but when grain is fed through the hopper. onto the shoe the motion thereof changes considerably. The weight of the grain bears the shoe downward, the spring yields, and the lever Vedge of the shoe rests against the casing, as seen at c in Fig G, As the lever descends the shoe drops, so that the fullweight of the grain thereon is noty resting on the shoe, and hence the spring is permitted to draw the shoe slightly away from the easing, as seen at d. The downward motion of the lever new ceasing, gravity carries the shoe downward and it swings again against the casing, as seen ate, the spring yielding to permit this, and when the lever rises the leverA edge of the shoe will l slide upwardly in contact with the casing, as seen at f. Thus the shoe has a movement in the are of a circle when it is not weighted down by graimbut under such circumstances it moves through a D-shaped figure, striking the case sharply at one time and rubbing against it as it rises, so as to cause it to jiggle or tremble and properly feed the grain.

` Having thus described our invention, what we claim, and desire to secure by Letters Patent of the United States, isV

l. In a fanning-mill, the combinatiomw-ith a shoe within the casing, a spring carried by said casing, and a cord connecting said spring with one edge of the shoe, of afan, a lever driven from said fau and moving vertically, and a cord connecting said lever with the other edge of the shoe, -all substantially as described.

2. In a fanningmll, the combination, with a shoe within the casing, a spring carried by said casing, and a cord connectingsaid spring with one edge of the shoe, of a rotary fari having a cam on its shaft, a centrally-.pivoted lever whose lower end is struck by said cam, and a cord connecting the upper end ol"- said lever with the other edge of the shoe, all substantially as hereinbefore described.

In testimony that We claim the foregoing as ourown we have hereto` affixed oursig'natres in presence of two. witnesses.

JOHN PELZER,

JOHN VEREL.

Witnesses;

JUL. C. HAHN, J. ll, TRAVIS.

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