US12657A - John phin - Google Patents

Description

B. T. TRIMMER.

-Pa tented April 3, 1855.

Grain Cleaner.

a. Fergus. MW WM. 0, c

.uToallwhomz'tmay concern." 1 :Be it known that I, BE JAMIN MER, .ofParma,in the'county ofMonroe and State of NewYo-rk, have invented certain new and useful Improvements in scouring \Machines for Cleansing Grainy and I doj Bf. T. TRIMMER, on PARMA, NEW YORK.

GRAIN-CLEANER.

{Specification of Letters Patent No.-12,657, dated. Apri1'3, 1855 T. Talia-g herebydeclarethatthe. following is a ifulh and, exact description? thereof, reference be- 1 1 ing hadto the accompanyingdrawings, mak-j ing part of this specification, andto'g the let. Wtersof reference marked thereon, and of said Figure 1 is an elevation of one side. Fig.

v is an elevat-ionj'oftheoppositeside. Fig. 31 is an elevationfof theg right hand end of Fig. 1. Fig. 4: isanelevationioftheleft hand machine. Figs. 6, 7 and8 are plans anda" sectional elevation ofuthe scouringappara; .1 tus. Fig.8 is a sectional elevation of the j jscreen showing its internal construction, the .-crown.wheel by? whichiit is drivenan d the {friction rollers upon which it runs.

3 same letters referring to like parts in all i H As it is in general designed to connect this machine with a screening machine, I have thereto. .Thenature; of

"showu and described the latter for conven I g iencesakeybut donotconsider the present application for Letters Patent to apply invention it consists in certain; new methods of constructing and arranging teeth or heaters in scouring, ma- "chines wltli lndla.ILlbbBI' or gutta percha scrolls and: sucking blasts whereby the grain is effectually cleansedfrom all impurities in i amuch more perfect"rnanner andwith much greater easejthanL byjfthe means hitherto in Touenable others shilled in the art to understand, make and use my invention I proceed to? describe 1 its. construction and op:

. {eration,whichniaybest 'be done. by detailing" :the various operations which the wheat undergoes' from its entrance into the machine toits exit therefrom,;j i w a a .1: The wheat as it comes from the separator Ipassesinto thejspoutfA and through it into the screenfl During its passage through the pipeA it is subjected to ablast passing through the pipe B which clears it of chaff, white-caps, etc. The screening process is performed by a fcombihatiOn of. several concentric screens connected together and re -volving uponfthe friction rollers r, 7,Fig.

.3). o (Fig. 9) isa groove in which another and corresponding set of friction rollers work.

The inner screen C is formed of sheet metal and is inclined at a slight angleso that the end opposite to that at which the wheat enters is the lowest. The wheat will conse .que ntly roll down the inner screen,-passing through the holes therein, while all large bodies such as nails, wheatears, etc., being too large to pass these holes, will roll down to the lower end of this screen and there pass ofi' by the spout s. The inner screen passes through the wheel w by which the whole screen is revolved, and in order to make a sufli'ciently tight joint in the case for directing all the dirt to the spout s'there is a hoop .Ouflange attached to this wheelor to the frame to which itis attached, which hoop fits and revolves within another xhoop (71.) attached to the outer case of the screen.

I, It is evident that as the whole screen revo'lves the wheat which falls through the holes in the inner screen near its entrance will partially fall back and through the same screen. This is prevented inthe latter portion of its descent by the mode of punching the holes in the screen, the metal not being cut away but simply cut on threesides and raised as will easily be seen from the drawing, Fig. 9; Theholes 'are' there seen covered by. a kind of valves which while they permit the 'freeexit of the wheat efi'ec- ,tuallyprevent itsret-urn as it falls from the upper side of the second screen. After passing through the first screen the wheat, now separated from all the grosser impurities but 'stillmixed with small seeds, chess, etc., falls on to a second screen revolving exteriorly to the first. This screen is conical to such a degree that the underside thereof forms an inclined plane of about the same depression.

. as the first screen but reversed, notwithstanding the contrary inclination of its axis. "For a certain portion of its length toward the left hand (as seen in the drawing, Figs. 2 and 9) the holes in this screenare so small "as to prevent thepassage of the wheat but allow all lesser impurities free egress. These lesser seeds and impurities are caught by theconical sheet D which has no holes but carries everything that falls on itto the.

holes or slots d, d, in the end of the screen, vwhichholes or slots lead to the chamber E (Fig. 9), whence everything passesoif by the spout S. Toward the lower portion of the second screen, however, immediately beyond the point of junction of the conical sheet D, the holes are made larger and are covered by the same valve-like coverings used in the first cylindrical screen. The wheat passing through these holes and prevented from returning by the valve-like coverings falls on to the fine-cylindrical screen seen exterior to all the others. This screen being cylindrical and its axis having an inclination corresponding to that of the inner cylindrical screen, the wheat will roll along it until it reaches the end opposite to that at which it entered, and passing out at the point G into the spout I (seen in Figs. 1, 3, and 9) passes into the scouring machine. All small seeds and lesser impurities meanwhile passing through the exterior screen on to the sheet K and thence into the spout L L which carries them to any proper receptacle. \Vhile passing through the internal cylindrical screen the wheat is subjected to the action of a blast from the fan which enters by the pipe Q and passes out at the spout R. A damper or hinged apron may be placed in this spout so as to return the dirt and light grain to the chamber T.

The scouring apparatus consists of a series of two or more hollow conical pustia having spring teeth formed and attached as shown in sectional elevation in Fig. 6 and in plan in Fig. 7, These teeth are formed of thin sheet steel curved and attached as there shown; some of these teeth are formed similar to a rasp as there shown; others are armed with pointed teeth while some are quite plain. The concave also is provided with teeth or beaters cast thereon or-formed of suitable material and attached thereto and against which the wheat is rubbed or scraped by the spring teeth on the convex. The wheat passes from the spout I into the top of the scouring machine, being subjected in its passage to another blast derived from the box H above the fan and passing along the pipe F. The wheat is driven by centrifugal force over the plate and thence down the sides between the concave and convex cones. As it is here that the smut-balls are broken and the dust removed from the ends of the berries, and as it is essential that this dust should be immediately removed I suck the air through the holes in the top of the smut mill down between the concave and convex and through a series of small holes in the said convex (to which the spring teeth are attached)too small to permit the passage of the wheat. The air thus carries all dust and dirt down the central pipe and along the tube P (seen in red lines in Fig. 1) to the fan.

The teeth or beaters on the concave may be serrated as in X (Fig. 6) or plain as seen on the opposite side.

After passing between the two cones and having the loose smut and dust removed by the action of the sucking blast the wheat descends to the scouring plate (n) across which it is scrolled to the center by the spiral scroll .2) formed of gutta percha or indiarubber. This scroll exerts a further wiping action on the wheat and delivers it on to the upper plate of the next scouring machine whence it is driven by centrifugal force to the next series of teeth and heaters and after passing through the same process as formerly described it is delivered by another scroll through the aperture U into the spout g. The last scroll is shown in plan in Fig. 8 where the brown color shows the india rubber. In passing through the spout g the wheat is again subjected to the action of a sucking blast which passes through the tube (it) and into the top of the tan through the square pipe (t). The air being drawn over and around the bent sheet (N) in the tube (M) the light grain &c. will chiefly fall to the bottom of this tube and when it has accummulated sufficiently will overcome the spring, open the trap door or valve and esca e.

The air which passes through the pipe (it) is admitted through the aperture (6) which when no wheat is passing is closed by the plate the square pipe (P) are shown in red lines Fig. 6). But the weight of the wheat lying on the valve (3 will press down the spring seen below it and will not only open a passage for the wheat but will also admit air through the aperture (6) by lowering the plate The spring is regulated by a screw shown beneath it.

I will now proceed to describe the mode of operating the machine and those details which have not been hitherto noticed.

A band from any convenient source of power passing around the pulley (l) on the shaft (2), which passes through the scouring machine, will cause it to revolve and give motion to the fan through a band passing over the pulleys and (4).

A pinion (5) on the shaft (2) drives the crown wheel which is seen attached to the screen in Fig. 9;

(6) Fig. 4 is a spring valve to regulate the blast passing through the pipe.

(7 is a screw for raising and lowering the bridge tree upon which the shaft (2) rests. By these means the scouring teeth and india rubber scroll are brought to bear more heavily on the wheat which may be done without any danger of bruising the berries as the spring teeth and india rubber scroll are yielding. The india rubber is attached to the under plate by means of sheetiron flanges as will be easily understood from the drawing. The screens are best constructed in two halves so as to slip out between the ends.

(Those parts which lie behind 9 5 I ls a valve regulating lated by the bridge-tree for the purpose and the fbrcebf the blast in thepipe F. in the manner substantially as described.

*QHaVing thus described my invention What l )I cla-im th ereines new and desire t0, secure TTRIMMER' 5 by Letters Patent is Signed in presence 0f'- T The eonst rue tloniandgarrehgefiient ofehe JOHN PHIN, ll'ldifl "rubber screllland spring teeth regu JAS. M. CUYKENDALL.

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