US410869A - Fan n ing-mill - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

T. M. BALES. FANNING MIL L.

No. 410,869. Patented Sept. 10, 1889.

144i- ATTORNEY N. Pawns vnmum m hm Washington. D. c.

(No Model.) 2 Shee11sSheet 2.

T. M. BALI-1S.

FANNING MILL. No. 410,869. Patented Sept. 10, 1889.

.42 B C a -Z a a" m Z flfikmwz'o'n UNITED STATES PATENT OFFICE.

THOMAS MONROE BALES, OF DUBLIN, INDIANA.

FANNlNG-MILL.

SPECIFICATION forming part of Letters Patent No. 410,8 69, dated September 10, 1889.

Application filed April 2, 1889- Serial No. 305,774- (No model.)

To all whom it ma'y concern:

Be it known that I, THOMAS MONROE BALEs, a citizen of the United States, and a resident of Dublin, in the county of Wayne and State of Indiana, have invented certain-new and useful Improvements in Fanning-Mills; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure 1 of the drawings is a representation of a side view of the machine. Fig. 2 is a top view, partially broken away. Fig. 3 is a longitudinal vertical section.

In the accompanying drawings, the letter A designates the frame-work of the fanningmill; B, the fan-case; O, the fan, and D the pinion on the end of the fan-shaft, operated by the driving-gear E, and having the wristpin a, forming the pivot-connection for the pitman F, which is connected at one side of the machine to the bent end b of the transverse horizontal lever L, this being pivoted at its opposite end 0 and connected to the upper shoe G by means of a short projecting lug (Z, which is pivoted to the middle of said lever L. The upper shoe G is short and inclines slightly downward from the connectinglug d, and when the pinion is rotated said shoe is reciprocated rapidly by means of the lever-connection, its movements being short and accomplished with force and precision.

K represents the lower shoe, which is inclined upward from below the fan-case, its upper end being just under the lower or discharging end of the upper shoe.

To the lower edges of each side of the shoe K is secured the notched bracket m, the notches 'n, being in series, as shown, and openin g downward, so that any one of said notches, according to the adjustment, may engage the lug Z of the swinging levers S, which is connected to the bracket V, secured to the side wall WV of the casing near the inclined edge 19, which extends from the fan-case, as shown, The swinging levers S communicate motion from the upper shoe to the lower shoe, and

the upper end of said swinging levers above the fulcrum-bracket V is pivoted to a bracket won the side of the upper shoe G. As the bracket 12 is quite near the fulcrum-bracket V and the notched bracket m is separated thereform by a considerable interval, it is apparent that as compared with the movements of the upper shoe those of the lower shoe will be long and sweeping.

To the under side of the upper shoe is secured a sheet-metal guard g, which extends under the upper riddle or screen to within three or four inches of its end, so that all the grain which passes down through the screen is carried by this guard and delivered over its end to the screen below in the lower shoe. This guard also forms the upper wall of the wind-chute h between the shoes, and it prevents the force of the blast from the fan being dissipated, and at the same time presents the dust and chaff for action only for a distance of three or four inches at the end of the shoe, so that said dust and chaff are easily and effectively expelled, a blast being more efficient when the distance over which it is required to act is short, because then particles haye not time to settle by gravitation; and in this connection the rapid motion of the lower shoe is important in that it is designed to effect a thorough shaking-of the grain therein, loosening the chaff and dust, so that when the grain falls said chaff and dust can be easily and efiectively removed by the blast. This short reciprocation is not required in the upper shoe, its purpose being better executed by the long stroke given; but as the grain which is acted upon by this lower shoe may vary in edges 25 of the side walls W of the casing, said plate extending from the fan-case up the inclination of said lower edges toward the upper end of the lower shoe, and thereby pre- IJO venting dissipation of the blast before it arrives at its field of action near the end of the shoe.

An oblique-arc slot ,2 is made in the side wall XV, through which projects a lug f of the wind-board J, which is pivoted or hinged at 0. By the adjustment of this wind-board the blast can be regulated to effect more or less concentration below the discharging end of the upper shoe.

Several screens are usually employed in the upper shoe, one below another, arranged in suitable slideways of the sidewalls of the shoe and fastened in the shoe by means of hooks and screw-bolts, so that they may be readily removed when desirable.

The lower shoe is easily removed, it being only necessary to raise its upper end for disconnneetion from the swinging strap, when it can be withdrawn from the casing. The mill is thus made easily separable, so as to be readily handled in transportation.

Having described this invention, what I claim, and desire to secure by Letters Patent, is-

1. In a fanning-mill, the combination, with the fan-shaft and its pinion, 01": the pitman and the transverse lever connected by its middle portion to the upper shoe, the lower shoe having thenotched brackets on its under side near its upper end, and the pivoted swinging levers connected to the upper shoe by their shorter arms, and engaging by lugs at the ends of their longer arms the notched brackets of the lower shoe, substantially as specified.

2. In a fanning-mill, the combination of the fan-shaft,l1avinga pinion on its end provided with a wrist-pin, a transverse lever pivoted at one end to the casing, a pitman connected to the downwardly-bent end of said lever, the upper shoe pivoted to the middle portion of said lever, notched bracket m, and swinging levers pivoted at their upper ends to the upper shoe and having at their lower ends lugs adjustably engaging notches of the brackets m of the lower shoe, substantially as specified.

In testimony whereof I afi'ix my signature in presence of two witnesses.

THOMAS MONROE BALES.

Witnesses:

SMITH DRULEY, .ToIIN SNYDER.

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