US1961534A - Bar separator - Google Patents

Bar separator Download PDF

Info

Publication number
US1961534A
US1961534A US497726A US49772630A US1961534A US 1961534 A US1961534 A US 1961534A US 497726 A US497726 A US 497726A US 49772630 A US49772630 A US 49772630A US 1961534 A US1961534 A US 1961534A
Authority
US
United States
Prior art keywords
bars
bar
bed
separating
arms
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US497726A
Other languages
English (en)
Inventor
Loren G Symons
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SYMONS BROTHERS DEV Co
SYMONS BROTHERS DEVELOPMENT Co
Original Assignee
SYMONS BROTHERS DEV Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SYMONS BROTHERS DEV Co filed Critical SYMONS BROTHERS DEV Co
Priority to US497726A priority Critical patent/US1961534A/en
Priority to BE384250D priority patent/BE384250A/xx
Priority to FR726005D priority patent/FR726005A/fr
Priority to GB30783/31A priority patent/GB396682A/en
Application granted granted Critical
Publication of US1961534A publication Critical patent/US1961534A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/12—Apparatus having only parallel elements
    • B07B1/16—Apparatus having only parallel elements the elements being movable and in other than roller form

Definitions

  • My invention relates to an improved apparatus for screening or separating materials.
  • One object is the provision of an improved apparatus for separating from a mass of particles of different sizes the particles below a predetermined minimum size.
  • Another object is the provision of a separating or screening means whereby particles of small size may be separated from the mixed mass of materials including particles of a size much larger than the size of the particles separated out.
  • Another object is the provision of a screening or separating device which is efficient in preventing blinding of the screening apertures.
  • Another object is the provision of a positively actuated and positively controlled separating means.
  • Another object is the provision of a separating device of great robustness and resistance to impact of the material being separated. Other objects will appear from time to time in the course of the specification and claims.
  • Figure 2 is a side elevation with parts in section
  • Figure 3 is an enlarged section on the line 3-3 of Fig. 2;
  • Figure 4 is an enlarged fragmentary plan view of the screen
  • Figure 5 is a detailed view with parts in section and parts broken away;
  • Figure 6 is a section on the line 6-6 of Figure 5;
  • Figure '7 is a section along the line 'l'-7 of Figure 2;
  • Figure 8 is an enlarged section on the line 8-8 of Fig. 2;
  • Figure 9 is a diagrammatic view of the screen bars
  • Figure 10 is a view similar to Figure 5 illus trating a variant form.
  • Figure 11 is a section on the line 1111 of Figure 10.
  • A generally indicates any suitable frame member, of which I show the side channel members A A which may be connected as by the transverse end members A
  • I may provide supporting abutments or brackets including a vertical portion A and a horizontal flange A which may be bolted 01' secur d or rest upon any suitable beam or 19- port A.
  • the end members A are indicated as tubes, and positioned in each end of each said tubes is any suitable washer indicated as A which may be of wood and which may be positioned, as by the spacer A Passing through said bushings is a transverse rod A screwthreaded at the ends to receive securing nuts A A is any suitable boss or spacer which may be mounted or welded on the member A A is any suitable sleeve about the rod A and Within the washers N. t will be understood that prior to the tightening up of the nuts A the member A with its support engaging flange A may be set at any desired angle, whereby a ready adjustment of angle and support is made possible.
  • each channel A A Mounted upon the upper flange of each channel A A are a plurality of boxes or housings, each formed by opposed angles B B as shown for example in Figure 5, the top being closed by a cover plate B Positioned within the general rectangular aperture so formed is a rectangular bushing or block B of rubber which is provided with a central aperture B herein shown as rectangular also.
  • both the block itself and the recs0 tangular aperture are oblong or elongated with a long diameter generally perpendicular to the side frame member A or A
  • the block B is preferably surrounded by a metal covering member B overturned at the sides as at B to prevent 7 any undue lateral expansion of the block B
  • the member B is split and the opposed edges are spaced slightly apart as at B.
  • the cover plate B is provided with centering ears B between which passes a securing bolt B the ends of which pass through corresponding apertures in the angles B B in which apertures are seated cone shaped bushings B
  • the assembly is drawn together as by the nut
  • the tapered bushings B have some wedging action and serve to seat the cover plate B firmly against the top of the 0 rubber block 13 and to maintain said block under a desired predetermined compression.
  • each bar includes a central bar C, the ends of which are upwardly built up as at C The end with the upwardly built up portion seats in the aperture B of the rubber blocks B
  • a Socket or aperture C which may receive a ball opposed to an adjustable abutment C in a bracket C which may for example be welded to the upper Ill) flange of the channel member A or A
  • the abutment C is herein shown as screw-threaded in said bracket C and is provided with an apertured disc C through which may be passed a cotter C which may penetrate the bracket C and thus prevent rotation of the member C and thus hold it in any desired adjusted position.
  • the center of rotation or oscillation of the bar C as generally defined by the ball C is midway of top and bottom of the built up end portion of the bar.
  • each bar C Laterally projecting from opposite sides of each bar C are aligned arms D, the arms being provided with laterally extending fingers D
  • the arms D are generally perpendicular to the bars C and that the fingers D are generally parallel with the bars C.
  • the junction of arms and bars and of fingers and arms may be provided with fillets as at D if desired.
  • the upper surfaces of bars, arms and fingers are in general parallelism and are substantially bolo iv the tops of the built up portions of the ends of the bars as at C
  • the center of oscillation, as defined by the ball C is adjacent or, in the particular embodiment shown, only slightly below the effective upper surface of bars, arms and fingers.
  • the bars may be formed of a softer or less resistant material than the arms and fingers.
  • manganese steel arms may be welded to the bars, in such case the arms including a stirrup portion D passing about the bottom of the bar C and joining the arms D on opposite sides of the bar.
  • the bars may also be provided with bottom reinforcing members D from which laterally extend finger reinforcing members D It will be seen as from Figure 4 that the arms extending laterally from adjacent bars interpenetrate, and that the fingers of adjacent arms interpenetrate in such fashion that a pervious separating bed is provided with a plurality of apertures. In the form of the device herein shown these apertures are uniformly distributed and are of uniform size, but a slight variation in size, shape and distribution may be made in a given separating bed if necessary.
  • each bar is an even higher terminal or boundary ridge E within which depends a preferably flexible wall member E which may be mounted on any suitable brackets or supports E, which in turn are secured to one of the side members A or A
  • the brackets may carry a longitudinally extending plate or plates E to which the flexible member E may be bolted or otherwise secured.
  • the brackets E may be adjusted as by the slots E through which pass any suitable securing members E.
  • each said cylinder G Surrounding each said cylinder G is a bushing G preferably of rubber or some suitable yielding material. Clamped about said bushing and connecting it with the corresponding bar to be oscillated is an arm generally indicated as G which includes opposite parts G G, such parts being clamped or secured together about the outwardly extending enlarged portion of the shaft and about said bushing. To connect the members G to the bar, I may provide an upper securing bolt G which passes through the enlarged end portion of the bar, and lower securing bolts G which pass beneath it.
  • the members G I may provide a single securing bolt G with its securing nut G which draws together about the bushing G the arcuate clamping elements G
  • the pressure upon the bushing G may be varied or adjusted, as by varying the thickness of number of the shims G as shown in Figure 5.
  • the parts are so drawn up or secured that the rubber bushing CT is held against rotation to the cylinder G and is also held against rotation in relation to the surrounding members G of the arm G In other words, relative movement of the parts causing internal torsion of the rubber and relative rotation or movement of opposed abutting surfaces of rubber and metal.
  • a lubricant may be supplied to the interior as through the closure J J is any suitable motor means whereby through the belts J the eccentric shaft may be rotated.
  • the bed is set at an angle and metal is delivered to the upper end thereof.
  • I may provide for example any suitable feeding spout including the curved plate K, the side walls K associated therewith, the generally horizontal limiting flange or plate K and the bracket structure K to which the feeding structure is secured.
  • the plate K may have an arcuate boundary, as shown for example at K in Figure l, and may be adjustably mounted in relation to a forward vertical member K as by the securing members A
  • the bottom portion of the plate K may be covered by a flexible strip K which may extend downwardly over the upper end or edge of the separating bed.
  • the strip K may be attached to the plate K as by bolts K or any suitable securing means for said flexible strip whereby it may be removed and renewed.
  • I illustrate a variant form of connection between the rocker arm or bar or channel G and the individual separating bars C.
  • I illustrate a pair of flat arms M, M which are secured at their upper ends, as by the bolts G and G in relation to the terminal extension C of each bar C.
  • These members M M are connected at their lower ends, as by the bolt M with its nut M
  • the belt passes through the member M of metal or the like, which may be welded within the channel G.
  • the member M is apertured as at M and it is through this aperture that the bolt M passes.
  • I maintain a movement of relatively short excursion and of relatively high velocity my experience being that a slow movement and a long travel causes grinding rather than clean cut separating or screening.
  • the particles are not ground, but either pass through the apertures or are else kicked out.
  • a particle may not go through an aperture unless it is small enough to fall freely through the aperture. If it barely fits an aperture, in such a way that grinding will result, it is immediately kicked out and goes on to try the next hole and, if even slightly oversize, passes entirely across the separating zone.
  • the zone is formed by a series of screen bars having interpenetrating arms and fingers, as herein shown.
  • Each individual bar is oscillated about a pivot or axis, all the bars being oscillated in a like rotational direction.
  • the result is that the opposed arms and fingers of adjacent bars are continually moving in opposite directions, except at the time of the dead points of change of direction.
  • the relation between the opposed walls of adjacent arms and fingers of different bars is always the same because the maximum travel at the end of one bar takes place adjacent the minimum travel of the adjacent bar or arm, and the relative movement between opposed sides of the individual apertures is uniform.
  • I may pass the mixed materials over a separating bed the diameters of the apertures of which are, one inch. These apertures will permit the undersized material to escape, while all material above one inch will pass over the separating bed, and may be conveyed to the crusher. Not only will my separating bed screen. out the fines, but it will support the impact and weight or" the large boulders from which the fines are separated. I may freely feed heavy jagged rocks to my bed, and separate the fines. I may, for example, employ bars of manganese steel, which bars will efficiently resist deformation or breakage, and which will have a long life of wear. If ordinary screen cloth were employed, the heavy jagged boulders would quickly batter the mesh to pieces.
  • a screening bed which consists of interpenetrating bars or fingers.
  • the bed elements include spacing means, in the form of longitudinal ridges, for spacing particles too big to pass through the apertures and big enough to bridge or blind them, upwardly away from the effective surface of the bed.
  • these ridges perform the function of a separate coarse screen or bar grizzly and a double function, screening out the very coarse material from the mass, and separating out the fine material from the mass is performed by one separating bed. This is particularly important when the screen is to be used in a space restricted as to height, where it is inconvenient or impossible to superpose two or more screens.
  • the coarsest material the material of a diameter greater han the distance between the adjacent ridges is excluded from the effective separating portion actually defined by the apertures between adjacent fingers.
  • the smaller part of t 1e mass is screened and the larger particles of the mass are spaced away from that part of the bed where the actual screening or separation of the fines is taking place.
  • the manganese steel bars and fingers are as effective as or more effective in separation than screen cloth, and can resist the punishment of large boulders in the way in which screen cloth cannot.
  • An individual particle may for example penetrate an aperture. In the main such a particle will be thrown upwardly out of the aperture if it cannot go through it. Some particles of a particular size, particularly long and thin particles, may not be so thrown. For example if a bolt penetrates an aperture in the screen, as an extreme example of an elongated unscreenable member or a mem er which cannot pass through the apers bolt will none the less work upwardly out of ,he aperture, in response to a species of ratchet action.
  • the torsion of the rubber effects a cushioning action and the compression tends to cause a snappy or quick return of the bar to initial position.
  • This torsion action in practice reduces the power necessary to actuate the device and in effect a pendulum action is obtained.
  • the device takes more power to get speed than if the bars were mounted in rotary or anti-frictional bearings, but the device runs longer after power is cut oil? and also ceases or stops the jerk and pull on the eccentric drive, and trims off the peak load, permitting the use of actually lower power.
  • a separating bed and means for feeding thereacross the material to be separated, said bed including a plurality of transverse generally horizontal bars extending across the path of the material being separated, and means for imparting a rotary oscillation to the bars of uniform direction and amplitude, each such bar including laterally extending arms and fingers laterally extending from said arms, the arms and fingers of adjacent bars interpenetrating to form separating apertures.
  • a separating bed and means for feeding thereacross the material to be separated, said bed including a p1urality of transverse generally horizontal bars extending across the path of the material being separated, said bars being mounted for rotary oscillation about generally horizontal axes transverse to said path, and means for imparting a rotary oscillation to the bars of uniform direction and amplitude, each such bar including laterally extending interpenetrating portions adapted to form separating apertures, and guiding means upwardly extending from said bars and interpenetrating portions and extending upwardly above the normal level of the bed defined by the upper surfaces of said bars and interpenetrating portions, said guiding means being adapted to guide material into alignment with the screen apertures, the screen apertures being aligned longitudinally along the separating mechanism, in general parallelism with the path of movement along the separ; -g bed.
  • a separating bed and means for feeding thereacross the material to be separated, said bed including a plurality of transverse generally horizontal bars extending across the path of the material being separated, said bars being mounted for rotary oscillation about generally horizontal axes transverse to said path, and means for imparting a rotary oscillation to the bars of uniform direction and amplitude, each such bar including laterally extending interpenetrating portions adapted to form separating apertures, and means, associated with each bar, tending normally to return each such bar to a predetermined neutral position in which the upper face of the bars and interpenetrating portions lie in parallelism with the general plane of the separating bed.
  • a separating bed and means for feeding thereacross the material to be separated, said bed including a plurality of transverse generaily horizontal bars extending across the path of the material being separated, said bars being mounted for rotary oscillation about generally horizontal axes transverse to said path, and means for imparting a rotary oscillation to the bars of uniform direction and amplitude, each such bar including laterally extending interpenetrating portions adapted to form separating apertures, and means, associated with each bar, tending normally to return each such bar to a predetermined neutral position in which the upper face of the bars and interpenetrating portions lie in parallelism with the general plane of the separating bed, such means including torsionally deformable connections for each end of each bar.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
US497726A 1930-11-24 1930-11-24 Bar separator Expired - Lifetime US1961534A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US497726A US1961534A (en) 1930-11-24 1930-11-24 Bar separator
BE384250D BE384250A (US06486227-20021126-C00005.png) 1930-11-24 1931-09-18
FR726005D FR726005A (fr) 1930-11-24 1931-10-27 Appareil à tamiser ou séparer des substances
GB30783/31A GB396682A (en) 1930-11-24 1931-11-06 Improvements in apparatus or devices for screening or separating materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US497726A US1961534A (en) 1930-11-24 1930-11-24 Bar separator

Publications (1)

Publication Number Publication Date
US1961534A true US1961534A (en) 1934-06-05

Family

ID=23978066

Family Applications (1)

Application Number Title Priority Date Filing Date
US497726A Expired - Lifetime US1961534A (en) 1930-11-24 1930-11-24 Bar separator

Country Status (4)

Country Link
US (1) US1961534A (US06486227-20021126-C00005.png)
BE (1) BE384250A (US06486227-20021126-C00005.png)
FR (1) FR726005A (US06486227-20021126-C00005.png)
GB (1) GB396682A (US06486227-20021126-C00005.png)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2454156A (en) * 1942-11-21 1948-11-16 Frick Co Peanut picker
US2924334A (en) * 1956-11-07 1960-02-09 Ben F Hendrickson Coal-sizing screen
US3378142A (en) * 1963-01-05 1968-04-16 Wehner Albert Vibratory screen
US5392931A (en) * 1993-09-30 1995-02-28 Beloit Technologies, Inc. Adjustable bar screen
US11020768B2 (en) * 2019-02-04 2021-06-01 Superior Industries, Inc. Vibratory classifiers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975500C (de) * 1952-11-23 1961-12-14 Brueckenbau Flender G M B H Siebboden aus einer Vielzahl nebeneinanderliegender gekroepfter Siebdraehte

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2454156A (en) * 1942-11-21 1948-11-16 Frick Co Peanut picker
US2924334A (en) * 1956-11-07 1960-02-09 Ben F Hendrickson Coal-sizing screen
US3378142A (en) * 1963-01-05 1968-04-16 Wehner Albert Vibratory screen
US5392931A (en) * 1993-09-30 1995-02-28 Beloit Technologies, Inc. Adjustable bar screen
EP0650773A2 (en) * 1993-09-30 1995-05-03 Beloit Technologies, Inc. Adjustable bar screen
EP0650773A3 (en) * 1993-09-30 1995-10-04 Beloit Technologies Inc Adjustable rod screen.
US5560496A (en) * 1993-09-30 1996-10-01 Beloit Technologies, Inc. Adjustable bar screen
AU681326B2 (en) * 1993-09-30 1997-08-21 Beloit Technologies, Inc. Adjustable bar screen
AU681327B2 (en) * 1993-09-30 1997-08-21 Beloit Technologies, Inc. Adjustable bar screen
AU681832B2 (en) * 1993-09-30 1997-09-04 Beloit Technologies, Inc. Adjustable bar screen
EP0882521A2 (en) * 1993-09-30 1998-12-09 Beloit Technologies, Inc. Adjustable bar screen
EP0882519A2 (en) * 1993-09-30 1998-12-09 Beloit Technologies, Inc. Adjustable bar screen
EP0882520A2 (en) * 1993-09-30 1998-12-09 Beloit Technologies, Inc. Adjustable bar screen
EP0882521A3 (en) * 1993-09-30 1999-01-07 Beloit Technologies, Inc. Adjustable bar screen
EP0882519A3 (en) * 1993-09-30 1999-01-07 Beloit Technologies, Inc. Adjustable bar screen
EP0882520A3 (en) * 1993-09-30 1999-01-07 Beloit Technologies, Inc. Adjustable bar screen
US11020768B2 (en) * 2019-02-04 2021-06-01 Superior Industries, Inc. Vibratory classifiers

Also Published As

Publication number Publication date
GB396682A (en) 1933-08-10
FR726005A (fr) 1932-05-21
BE384250A (US06486227-20021126-C00005.png) 1931-10-31

Similar Documents

Publication Publication Date Title
EP3463692B1 (en) A screening machine for screening material according to size
US8789777B2 (en) Concrete separating device
US5398815A (en) Landfill waste material separating method
US5219078A (en) Material separating and sizing apparatus with vibrating rods and method
US3971716A (en) Rock separator
WO2019091333A1 (zh) 螺旋筛理的网带筛及使用方法和用途
US10046365B2 (en) Multi-deck screening assembly
US9205459B2 (en) Vibrating screen deck deflector systems and methods
US1961534A (en) Bar separator
WO2017162541A1 (en) Kinematic separator with adjustable amplitude for industrial waste
US2874841A (en) Oscillatable separator means
KR101786946B1 (ko) 건설오니의 파쇄 및 마쇄 스크린 장치
US2703649A (en) Variable pitch stepped screen
US4003831A (en) Vibration screen
US4784334A (en) Method and apparatus for breaking into parts of a certain size and screening a bulk material
US2321166A (en) Bar grizzly
US2187273A (en) Hammer screen
CN212468813U (zh) 螺旋圆锥形轨迹筛分机
US2996261A (en) Feed and discharge screen structures for rock crushing apparatus
US2027375A (en) Screen separator
US1876034A (en) Grizzly bar
US450482A (en) Slate-picking mechanism
CN208512974U (zh) 一种高频圆振动筛
US546891A (en) Screening apparatus
US1744899A (en) Screen separator