US78843A - Lorenzo p - Google Patents

Description

L. P. TEED.

4 Combined Thrashng'lVIachine and Grain Separator. No. 78,843. Patented June 9, .1868.

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A LORENZO P, Tann, or'iinvv'lsnne,`ranNSYINANI.r g

Letters Pate'm'lvq. 78,843, dans .rime 9, 186s.

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TO'ALL WHOM IT MAY GONCERN: V l Be it known that I, LONZO P. Tann, of Lewisburg, Union county, Pennsylvania, have invented a combined Threshing-Machine and Grain-Separator; fand I do hereby declare the following to bea full, clear. andl exact description of the same. y I' My invention consists of the cem'binationrof certain grain-cleaning and separating devices, fully described hereafter, with ordinary threshing-mechanism, the whole forming a compact and eilcient machine, the various parts of which can be operated from a single driving-shaft.

In order'to .enable others skilledin the art to make and apply my invention, YIwill new proceed to describe ,l 'its construction and operation., reference being had to the accompanying drawing, which forms a part of this specification, and in which- Fignrc 1 lis a sectional clevationvof my combined .threshing-machine 'andgrain-separator.V Figure 2, a plan viewl ot the saine, partly insection. 4 l Figure 3, a transverse sectional view, on the line 1 2, iig. 1., Figure 4, a sectional elevation of a portion `of the machine. Figure 5, a plan view of, iig. 4, and

Figures 6, 7, 8, and 9 detached viewsdrawn to an. enlarged scale, and illustrating portionsof my invention.

Similar letters refer to similar parts throughout the several views. v V The two side frames A and A of the machine are braced by, horizontal bars and uprights, a, and are connected together by cross-pieces, al'.

The threshing-mechanism, at the frontportion of the machine, is similar to that in common use.

Power may be applied to the threshing-cylinder, B, from an adjoining horse-power or portable engine, eitherl by a belt passing around a pulley, bl, at one end of 4the shaftb, or by a rotating-'rod or shaft, X, shown in red lines, iig. 4. In the latter case the rod X is coupled to one end of .a spindle, d, which'turns in suitable bearings in the cross-pieces a* and a, and is' terminated at its inner end by a=bevelwheel, dl, gearing into a similar, wheel at the inner e'nd ofa spindle, e, the latter having, at its 'opposite end, a cog-wheel, e', which gears into a pinion, e, of the shaft b, (see iigsu and.)

The inner end of the spindlee turns in a stationary bearing,f, and itsouter end in a block, f1, hinged to one'of th'e upright-s, (1 of the machine, the said bleek being raised or lowered by a lever, c, with which it is connected by a link, f". The cog-wheel e isv by this means thrown in or out of gear with the pinion e, as will he more fully described hereafter.

At the rear of the usualv platform, c,of they threshing-machine,- and on line with the same, is a shaker-frame, D, which is hung to the opposite sido frames A and A ofthe machine by vibrating arms, g, in an inclined posiftion, its rear end being the most elevated.

The bottom of'the frameV Dis composed of a number of slats,g1 and y, u. space interveningbetween each of the latter for the passage of grain, as hereafter described, and a longitudinal reciprocating motion is imparted to the'said'frame by rods, h, secured to its under side, and connected lto a double crank-shaft, E.

lhe latter projects through and turns in the opposite si'de frames A and A', one end being terminated by a flywheel, z, of a suitablediameter, and the 'opposite end by a pulley, hz, iig. 3connected by a belt to a pulley, las, of the driving-shaft b. l i

Directly o ver the slats g of theshaker-frame is an apron, E, compos'ed of anumber, of strips of .sheet metal, placed side by side, and arranged to vibrate freely and independently upon a rod, Vz', secured to the opposite side frames,`(se e figs. 1 and 3.) v l A fan-spindle, G, turns iu'suitable bearings, secured v,tol the side frames A and A', and in each of the latter is the usual opening, j, for the admission cil air to the fan G', which turns in acurved box, 7c, there being at the rearof the latter the usual grain-receptacles, ,7" and 0verv one or both of the openingsj ofthe fan-box is seeured'a plate, I, iigs. 6 and over an opening in*- which are'hun'g three or more slats, kl, opening outwards, and connected together by a ro'd, k2, tite latter-being acted upon lby a spiral spring, ha, in such a manner as to slightly elevatev theV slats, and allow the passage of air between them into the box, as shown in fig. 6, and all of which will be more fully described hereafter.

The fanspindle Gr is turned by means of a pulley,-Z, at one cnd ofthe same, connected by a belt to a pulley, ll, of-the driving-shaft 6, and at the opposite end of thefan-spindle'is a grooved pulley, m, which communicates motion, by means of a'cord or belt, to a spindle, n, g. 1, which turns in the opposite side frames of the machine at a point above and at the rear of the fan-box t. This spindle, at a point aboutmidway between the s ide frames, is provided with a band-wheel, p, connected by an endless band, q, to a similar wheel, pl, of a'spindle, nl, which also turns in the opposite side frames. l

` The endless band g passes over and is almost incontact with the upper `surface of a stationary platform,

H, which is secured tothe frame of the machine between the pulleys p andp, and has an inclination somewhat greater than that cf the shalrerfi-ame D. To the endless bandq, and at equal distances-apart, are secured transverse bars, 1", for a purpose described hereafter.

A sieve-frame, J, provided'with sieves, t and ti, is hung to the upper portion of the fan-box by a pin,s, and rods el, iigs. 1-and`2, in such a position as to be directly over the grain-receptacles 7" and i,and beneath the inner end of thel platform H.

The sieve t of the sieveframe is shown enlarged in iigs. 8 and 9, and consists of a nuniber'of transverse m'ovableslats, y, each armed withl a number of wires, t/l, pointing rearwards, the said slats being connected f together, beneath the sieve, by a rod, f1/Z, whichslides in projections at'thc under side ofthe lframe, and may be secured in any position to which it is adjusted by set-screws, iig. .8. This rod, when moved toward the'rear of0 the machine,raises the upper edges of the slats, and separates them to a greater or less extent, so as to suit the size of the grain that is to pass between them. f

A lateral vibrating motion upon the pin s is imparted to the sieve-frame by the usual bell-crank lever, n,

bung to the side frame A', and connected to the sieve-frame by a rod, ul, and to a crank-pinch the pulley Zrby a rod u?, (see fig. 2.) *I VAt the rear of' the sieve-frame is a platform, K, secured to the side frames of the machine at a somewhat greater-inclination than the-platform E, and at the opposite ends of this platform are spindles, 'v and v1, which turn in bearings secured tothe platform, and which are provided with band-wheels, w, connected by an endless band, w1, the latter being almost in contact with theuppcr surface of the platform, and having transverse bars or Scrapers', wz, secured to it at equal distances apart, figs. and 2. l

' The spindle-o is provided with supplementary pulleys, o', iig. 2, and at its outer projecting end with a lgrooved pulley, x, the latter being connected by .a curved belt or cord to a smaller grooved pulley, sul, placed between the driving-pulley b1 and pulleyll of the driving-shaft.

' Operation. v

Machines of this class are generally mountedl upon wheels for 'convenience'in shifting them about a barnoor or other'place in which they are used. The wheels, however, have generally been placed at opposite ends 'of the machine, rendering it difficult to turn thel'atter without raising one end-an objection which I obviate by placing the wheels, clos'e together, and directly under the centre of-weight, putting blocks beneath the opposite ends of the machine when in use, toprevcnt it from tilting. c v

If power be'applie'd tothe machine bythe rod X, iig. 4, the lever C is`raised until the cog-wheel el. is in gear with the pinion e2 of the driving-shaft, the lever being held in its raised position by a hook, y. A If, however, the power is applied A'to' the driving-shaft by means of a belt on its pulleyb, the lever C is depressed until the cogwheels e and e'are thrown out of gear with each other, as shown in dotted lines, fig. 4.

The threshing-cylinder B turns in the direction ot' its arrow, and motion is communicated from the drivingshaft by the gearing described to the various parts 'of the machine which turn in the direction of their arrows, fg-.1'. f

The grain is threshed from the ears in the usual 'manner inv the threshing-machine, and' is, together with the stra-.w and cha, discharged on to the shaker-frame D, the slats of which are of such a shape aste permit the threshed meterialto pass over them in a rearward direction only. The` threshed materialpasses beneath the apron F, the plates of which turn upontheir rod c', and adapt themselves to the quantity of the material passing beneath them. i

Thisapron F serves the twofoldl'purpose of preventing the return of loose pieces o f straw without interfering with .the free passage of the straw rearward, and, together with thef top piece e, acts as a shield -or guard for stopping gransthat are violentlydisoharged by the threshing-cylinder, and which would otherwise prove a serious annoyance to the attendants. v

The threshed material passes over the shaker-frame, from the rear endet' which the straw is removed, the grain and chaff falling through'the interstices between the slats on to the platform H. From the latter it is scraped and carried downwards by. the transverse bars or Scrapers t of the endless band g, and discharged on to the inner end ofthe sieve t of the vibrating-frame J.

The. grain, owing to' the peculiar shape and inclination. of the slats which form the sieve,- tralvcls rearward over the' same, dropping between the slats on to the sieve t1, the light chal` being, in the nean time, separated from the grain by a current of airfrom the rotating fan Gr', and thrown on to thepla'tform K, up and over which it is carried by the Scrapers to2 of the endless band wl.

' The small and imperfect grains that fall upon thcsieve t* pass through the interstices of the same and fall iuto,thereceptacle thesound grain passing over 'the sieve andfallingnto the adjoining receptacle f2.

in Some casesfespecially if the fan G/ be turned at ahigh rate of speed, the current of air might bestroug enough to throw notonly the chad` but a portion of the grain on to the platform K. This I obviate by means of' the plates I and their slats c, the latter remaining open by the action of their spring, k3, as long as lthe fan is rotated at a moderate speed, but closing partly, owing to a partial vacuum produced within, the moment the speed of the fan is increased. i

By this arrangement, which is entirely1 self-regulating, the supply of air to the fan is increased or diminished as required, so as to produce an even and proper current through the sieve-frame J.' The slatted plates I also prevent loose pieces of straw from being drawn into the fan-box.

By thus combining the cleaning and separating-devices with the' threshing-u1eehanism, a compact and effieientmach'ine is obtained, the various partsofwhich are operated from a single driving-shaft, and, although I prefer, Lin new machines, to arrange'thewhole within a single frame, as above described, it will be evident that the rea-r portion of the machine maybe made separately, the threshing-machine resting upon the projecting ends of the lower rails of the side frames A A', so that the thresher may be detached and the machines may be used separately when required.

If the machine be operated by the rod X, the lever C may be depressed, and the horse-power or engine instantly stopped, `the various parts of the machine being-permitted@ continue moving` by their own momentum in order to clear themselves of straw and chaff, and ifthe machine is operated by a belt,` it may be thrown loit' at any time for the same purpose. v

I claim as my invention, and desire to secure by Letters Patent- 1. The apron F, consisting'of a number of sheet-metal strips, suspended above the shaker-theme D, snbstantially in the mannerand for the purpose herein set forth. 'I 4 2. The slats y, having wires y1 at their-edges and adjustable upon a frame, substantially'as and for the purpose described. Y v

' 3. A plate or plates, icl, so hung,'adjacent to an opening in the caseot" a fan, G', that the passage of lair into the said case will cause the plate to be adjusted, substantially as-and for the Apurpose described.

4. The arrangement of the shaker-frame I), platforms H and K,bands g and 20, with their bars or Scrapers, and the sieves t t1, all substantially as and for the purpose speciiied.

In testimony whereof, I have signed my name to this specification in the presence ot' two subscribing witnesses.

- L. P. TEED.

Witnessesz.

J. A. Mnn'rz, J. M. WAL'ron.

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