US1013040A - Separating-machine. - Google Patents

Description

. "lyz z nesse sr- T. F. MORSE.

ssnm'rme MACHINE.

' APPLICATION IILBDMAY 12,1910.

1,01 3,040 Patented Dec; 26, 1911.

' 3snnnTs-sHBBT 1.

v V A T. F. MORSE.

SBPARATING MACHINE.

APPLICATION FILED MAY 12,1910.

1,01 3,04. Patented Dec. 26, 1911. I, 3 SHEETSSHEET 2.

DD 0 00 D00 OOOOOOOOOODOOOO Q00OOOOOOOOOOOOOOOOOOOOIOOO muun- [naezZqi- Zfz'zmesssl v Q a T. 11 MORSE. SBPARATING MACHINE.

I APPLICATION FILED MAY 12,1910.

Patented Dec. 26, 1911.

3 SHEETSSHEET 3.

useful Improvement in move or a 'tate rain s ra'rns arana critics.

'rnEononEr. monsn, or SILVER cnnnx, NEW YORK, Assrenon TO KHUNTLE'Y mannracrumne comrany, or srnvna cnnnx. new YORK.

sErAm'rme-mcninn.

Specification of Letters ream. P t t 2 19 1,

Application filed May 12, 1910. Serial No, 560,964."

To all whom it may concern; I

Be it known that I, THEODORE F. Morse, a citizen of the United States, residing at Sil: ver Creek, in the county of Chautauqua and State of New York, have invented a new and Separating Machines, of which the following is a specification.

This invention relates to grain separating ,or cleaning machines in which a perforated screen is employed for separating-impurities or foreign matter from the grain or for separating grain of one kind from another.

The object of the invention is to provide machines of this sort with an open meshed belt which travels along on the surface of the screen and performs the double function of scraping the screen so as therebyv to the material thereon and cause the ner grains or particles to fall through the perforations of the screen and the coarser grains or particles to tail off at one end of the screen, and also of holding straws, stones, sticks and other large foreign particles off of the layer of material on the screen and conveying these particles to a separate point of discharge, thereby elfecting a preliminary separation of such particles from the other material and preventing the large particles from coming into contact with the screen and from mingling with the material thereon and thereby impeding .or interfering with the separating action of the screen. To this end, an open meshed belt is arranged to travel lengthwise on the separating screen and the material to be separated is fed onto this belt. at one end of he screen. The meshes or interstices of the belt are of such size and shape that the large particles of foreign matter, such, for instance, as straws, stones, twigs, nails, &c., will be intercepted by this belt and ride thereon and be discharged therefrom at the tail end of the screen without coming into contact with the screen, while the grain and finer impurities will pass through the meshes of the belt onto the screen and will be,.scraped, moved or dragged and distributed over the screen by the traveling belt, the finer-grams or particles passing through the perforations of the screen while the larger grains or particles tail off at the end of thescreen. The depth or thickness of the belt is such as to hold the large particles riding thereon out of contact w1th the body of material on the screen so as not to interfere with the free agitation or movement of the grains and smaller impurities on the screen in the interstices of the belt In of three sheets: Figure 1 is a sectional elevation of a grain separating machine, embodying the invention. Fig. 2 is a sectional plan thereof inline 2-2, Fig. '1. Fig. 3 is a pers ective view, on an enlarged scale, of a portlon of one of the screen belts. Fig. 4 is a longitudinal section of a portion of the belt. Fig. 5 is a sectional elevation of a separating machine of modified construction. Fig. 6 is a fragmentary perspective view of ascreen belt of modified construction.

Like reference characters refer to like parts in the several fi res. 4 In Figs. 1 and 2 t e invention is shown as applied to a dustless separator of well known type in which upper and lower screens are employed for effecting the separation, and suction means are provided for removing the dust from the material as it is fed onto the upper screen and from the cleaned grain as it tails 011' from the end of the lower screen. In these figures, A reprelayer or 'sents a coarse screen for, effecting a preliminnpurlties or nary separation of the coarse particles from thegrain and A represents a fine screen for separating the fineimpurities from the grain which passes through the openings or the coarse screen. These screens, which may be of any suitable type, are mounted one above the other in a frame- B of any suitable construction. They may be stationa or vibrating screens, the former being s o The material is fed onto-the head end of the upper screen through a feed spout G and the grain, small seeds and sand or other material which pass through the openin of this screen are directed onto the hea end of the lower screen A by an inclined board D arranged between the screens. The fine tallings from the u per screen A, consisting of e bles and ot er foreign particles or grams which are too large to pass through the openings of this screen pass 011' of the' tail endthereof into a fine tailings chute E leading toone side of the machine. The clean grain passes ofi of the tail end of the lower screen A onto a chute F which disstance, the shaft of the- .nects the feed spout G with a dust .,chamber' 1, and H charges it from the machine at "a suitable point, and the sand or other fine impurities andsmall' seeds passing through the openings ofthis screen A 11 into a hopper G which discharges them at a suitable point.

H represents a suction leg which consettling represents a suction leg which connects the discharge chute F for the good grain with a dust settling chamber I. Air is exhausted from thesettling chambers by a fan K and the suction thus created draws thedust from the material through the suction legs into the settling chambers I I,.where it settles and isremoved by congeyers in the bottoms of the settling chamers. A The construction thus far descrihed is common to machines of this type and the operrtion of such machines is well understoo L represents an endless belt which is arranged so as to travel lengthwise over the screen A in contact therewith, and L represents a belt similarly arranged .with res ectto the lower-screen A. As shown, the elt for each screen passes aroundpulleys or drums Z Z suitably j ournaled adjacent to the opposite ends of the screens and the belts are driven by any suitable means, for inbeltmay be belted to'the shaft of the fan K. Thechute E for the fine tailings from the upper screen is located between the tail end of this screen'and the adjacent drumtl for the belt L, the lower run of the belt passing through suitable openings in the walls of the chute, and suflicient space is l-ikewiseleft between the tail end of the lower screen and the adjacent belt drum Z for the discharge of the clean grain tailing off of this screen.

Each of the belts L L is composed of articulated or flexibly connected Wires or metal 'strips vhaving portions extending both lengthwise and crosswise ofthe belt so as to form meshes or interstices throughout the extent of the belt.

Figs. 3 and 4 show a belt of practical construction which is composed of oval or flattened wire coils Z which extend transversely of thebelt and are interlocked with each other. The flat lower portions of the coils rest and travel on the upper surface of the-screen and act to'scrape, move or agitate the material on the screen,

upper portions of the coils lie in a. plane some distance above the surface of the screenso that as the material discharges from the feed spout C the grain and other particles which are small enough passthrough the meshes of the belt onto the head end of the upper screen, but the belt intercepts, the coarse impurities which lodge on the raised upper surface of the belt and are supported thereby above or out of contact with the suitable discharge chute belt to the pulley l for each.

' with the up while the flat layer of material on the screen. The coarse impurities 'or tailings ride on the upper surface of the belt and fall therefrom into a M as the belt passes around the drum Z at .the tail end of the screen. Thus the belt, in addition to scraping the screen, also eflects a preliminary separation of th'estraws, twigs, and nails or other coarse foreign particles from the aim and finer impurities which pass throug the screen, lessens the yvork to increases the capacity of the machine.

' The belt can be of other construction adapted to operate in a similar manner. For instance, the belt L? can, as shown in 'Fig. ,6, be composed of zigzag-metal strips Z flexibly connected by rods or wires These strips also form meshes or interstices throughout the extent of the belt, and theirlower edges act to scrape the screen, While their upper edges serve to support the coarse foreign particles above the layer of material on the screen.

In the. case of the lower screen, the belt L does not perform the separating function above described and serves merely to scrape or move thematerial over this screen.

The invention is also applicable to other types'of separating machines. Fig. 5 shows a machine of different construction in which a single endless traveling belt, such asidescribed, is arranged to cooperate with two screens. A A are oppositely inclined. The belt L passes around a pulley or drum Z adjacent to the tail end of the screen and the head end of the lower screen and around two pulleys or drums Z and Z adjacent to, the opposite ends of the screens. The upper run of the belt "travels inone direction over the upper screen A and the lower run of the belt travels in the opposite direction over the lower screen A. The belt thus cooperates per screen A to separate the coarse forelgn particles from the material delivered tothis screen and discharge them at a different point from the finer impurities tailing olf of the screen and to scrape the screen, and cooperates with the lower screen to scrape and distribute the material over the same, thus operating in the same manner as the belts in the machine -first de-' scribed. g

While inboth of the machines described the separation is effected in two stages by two screens, with both of which the belt or belts cooperate, the invention is not restricted to such arrangements and asingle' screen .and a belt coiiperating therewith, as in the case of the upper screens in the machines described, can beemployed.

I claim as my invention:

1. In a separating machine, the combinaand therefore materially be done by the screen and In this construction the screens tion with a separating screen, of a belt which 1 through them onto the screen and to inter-- travels over said screen and is provided with open meshes which are of a size to permit the finer material to pass through them onto the screen and to intercept the coarser material, said belt having portions which engage the face of said screen and move the finer material thereon and portions which are spaced therefrom and support and carry the coarser material, substantially as set forth. 2. In a separating machine, the combination with a separating screen, of a belt which travels on the upper surface of said screen and is, provided with open meshes which are of a size to permit the finer material topass cept the coarse material, said belt having portions located above the surface of the screen and spaced therefrom which support and carry the coarser material, substantially as set forth.

3. In a separating machine, the combination with a separating screen, of a belt which travels over said screen and is provided with open meshes which are of a size to permit the finer material to pass through them onto the screen and to intercept the coarser mav terial, said belt having portions-which move the finer material on the screen and portions which support and carry the coarser material, and separate means at the tailend of said screen for receiving the coarser material from said belt and the material which tails off from said screen, substantially as set forth.

4:. In a separating machine, the combination with a separating screen, of a belt which travels over said screen and extends beyond the tail end thereof, said belt having open meshes which are of a size to permit the finer material to pass through them onto the screen and to intercept the coarser material, and having portions which move the finer material on the screen and portions which support and carry the coarser material, means for feeding the material onto said belt, means at the tail end of said screen below said belt for receiving the material tailing off from said screen, and means arranged beyond the tail end of said screen at the end of said belt for receiving the coarser material from said belt, substantially as set forth.

5. Ina separating machine, the combination with a separating screen, of a belt which travels over said screen and has open meshes which are of a size to permit the finer material to pass through them onto the screen and to intercept the -coarser material, said belt having portions which move the finer material onth'e screen and portions which support and carry the coarser material,

surface from coming into contact with means for feeding the material onto said belt, a discharge chute for receiving the material tailing ofi? from said screen, and a second discharge chute arranged at the tail end of said screen beyond said first mentioned discharge .chute for receiving the coarser material from said belt, substantially as set forth.

6. In a separating machine, the combination with a separating screen, of an endless belt which travels over said screen upon drums arranged adjacent to the opposite ends of said screen, said belt having'open meshes which arev of a size to permit the finer material to pass through them onto the screen and to intercept the coarser material and having portions which move the finer material on the screen and portions which support and carry the coarser mate- 'rial, means for feeding the material onto said belt, a discharge chute for the material tailing off from said screen arranged between the tail end of said screenand the adjacent drum and a discharge chute for receiving the coarser material from said belt. arranged beneath said drum, substantially as set forth.

7. In a separating machine, the combination with a separating screen, of a belt which travels on said screen and is composed of portions which extend at an angle to each other and form open through which the finer material is adapted to pass onto the screen, the thickness of said belt relative to the open meshes therein being sufficient toprevent the coarser material which falls upon the upper surface thereof from coming 1nto contact with the screen, substantially as set forth.

8. In a separating machine, the combination with a separating screen of a belt which travels over said screen and is provided with open meshes which are of a size to permit the, finer material to pass through them onto the screen and to intercept the coarser material, said belt having portions on its under face which engage the face of the screen and move the finer material thereon, and portions on its upper facewhich support and carry the coarser material, the thickness 'of'said belt relative to the said meshes therein being sufficient to prevent meshes in the belt the coarser material carried by its upper" the screen, substantially as set forth.

Witness my hand in subscribing witnesses.

. THEODORE F. MORSE. Witnesses:

' T. H. Cownm,

O. G. HAMM('!ND.

the presence of two

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