US3225926A - Vibrating sieves - Google Patents

Vibrating sieves Download PDF

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Publication number
US3225926A
US3225926A US221505A US22150562A US3225926A US 3225926 A US3225926 A US 3225926A US 221505 A US221505 A US 221505A US 22150562 A US22150562 A US 22150562A US 3225926 A US3225926 A US 3225926A
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Prior art keywords
shafts
screening
vibrating
electromagnetic
vibrator
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US221505A
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Albert W Dostatni
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Preparation Industrielle des Combustibles SA
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Preparation Industrielle des Combustibles SA
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    • 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
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/34—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen

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  • This invention relates to screening apparatus and has more particular reference to vibrating sieves whose operation is effected by electromagnetic vibrators directly driving the screening surfaces without the supports of the latter participating in the motion.
  • One object of the present invention is to proivde a vibrating sieve whose operation is effected by electromagnetic vibrators directly driving the screening surfaces without the supports for the latter participating in the motion, thereby avoiding the vibration of masses not participating in the screening process, thus suppressing the dynamic stresses and the useless consumption of energy.
  • Another object of the present invention is to provide a vibrating sieve, as above characterized, in which the screening surface is pivotally connected to at least one lever mounted on a shaft resiliently pivotally mounted in the frame supporting the sieve and integrally connected to one of the two parts of the electromagnet of the driving electromagnetic vibrator.
  • Another object of the invention is to provide a vibrating sieve, as above characterized, comprising two superposed screening surfaces connected together by a series of pivoted levers driven by a single vibrator.
  • a further object of the invention is to provide a novel and improved vibrating sieve which is simple in construction and efiicient in carrying out the purpose for which it is designed.
  • FIG. 1 is a diagrammatic longitudinal sectional view of a sieve constructed in accordance with the present invention.
  • FIG. 2 is a transverse sectional view on the line 22 of FIG. 1.
  • the present invention provides a novel and improved vibrating sieve and, in general comprises a vibrating sieve whose operation is effected by an electromagnetic vibrator designed to vibrate the screening surfaces without the supports of the latter participating in the motion.
  • the invention further contemplates the use of a pair of vertically spaced superposed screening surfaces driven by one or more electromagnetic vibrators which directly drive the screening surfaces without the supports for the latter participating in the motion.
  • FIG. 1 an upper vibrating screen fitted on an upper frame 11, and a lower vibrating screen 12 fitted on a lower frame 13, with both frames fixedly mounted on a central supporting structure or generally rectangular frame 14.
  • a plurality of shafts or tubes 15 (four such being shown), each pivoting within resilient articulations 16 and 17, are carried by the supporting frame 14.
  • Each of the shafts 15 supports four driving levers 18 with the upper ends of each of the driving levers 18 pivotally connected by connections 19 to the upper sieve 10 and its lower end pivotally connected by connections 20 to the lower screen 12.
  • Each of the shafts 15 also supports, at one of its ends,
  • Patented Dec. 28, 1965 ice a transmission lever 21 and all of the levers 21 have their upper and lower ends pivotally connected to a pair of connecting rods 22 and 23, respectively.
  • one of the shafts 15 supports an electromagnetic vibrator 24 which, in turn, is connected to an electric control device 25.
  • the shafts 15 may be integral with the bed plate or the magnetic core of the electromagnetic vibrator. In the particular modification shown it is made integral with the bed plate of the vibrator.
  • the shaft 15 supporting the vibrator 24 pivots alternately inside the articulations 16 and 17 under the action of the vibrator.
  • the electromagnetic vibrator and the control chest or device 25 may be of any suitable usual type.
  • the operation of the apparatus is believed apparent.
  • the shaft 15 connected to the vibrator 24 transmits elec tromagnetic vibrations, by means of lever 21 and connecting rods 22 and 23, to the levers 18 mounted on the other shafts 15 and thus transmits vibrations to the upper and lower sieves.
  • electromagnetic vibrators may be connected to additional ones of the shaft 15. Also, if desired, only one screening surface may be employed.
  • a vibrating sieve comprising a supporting frame, a first screening surface mounted on said frame, a second screening surface vertically spaced from and disposed substantially parallel to said first screening surface, a plurality of shafts resiliently and pivotally mounted on said frame between said spaced screening surfaces and disposed substantially parallel to each other, lever means rigidly secured to one end of each of said plurality of said shafts, said lever means comprising a plurality of levers connected at their upper and lower ends to a pair of connecting rods, an electromagnetic drive means connected to at least one of said plurality of shafts, and a plurality of drive lever means each rigidly secured to one shaft and driven thereby, means pivotally connecting said drive lever means between said first and second screening surfaces, said shafts connected to said electromagnetic drive means, said lever means associated with said shafts, said connecting rods, and said drive lever means imparting the vibrational forces produced by said electromagnetic drive means to said first and second screening surfaces.

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  • Combined Means For Separation Of Solids (AREA)

Description

1 Dec. 28, 1965 A. w. DOSTATNI 3,225,926
VIBRATING SIEVES Filed Sept. 5, 1962 IN VENTOR 15 L527?! M10222 flailzlmz MfM United States Patent 3,225,926 VIBRATING SIEVES Albert W. Dostatni, Fontainebleau, France, assignor to Preparation Industrielle des Combustibles, a French concern Filed Sept. 5, 1962, Ser. No. 221,505
Claims priority, application France, Sept. 8, 1961,
872,810, Patent 1,299,963
1 Claim. (Cl. 209315) This invention relates to screening apparatus and has more particular reference to vibrating sieves whose operation is effected by electromagnetic vibrators directly driving the screening surfaces without the supports of the latter participating in the motion.
One object of the present invention is to proivde a vibrating sieve whose operation is effected by electromagnetic vibrators directly driving the screening surfaces without the supports for the latter participating in the motion, thereby avoiding the vibration of masses not participating in the screening process, thus suppressing the dynamic stresses and the useless consumption of energy.
Another object of the present invention is to provide a vibrating sieve, as above characterized, in which the screening surface is pivotally connected to at least one lever mounted on a shaft resiliently pivotally mounted in the frame supporting the sieve and integrally connected to one of the two parts of the electromagnet of the driving electromagnetic vibrator.
Another object of the invention is to provide a vibrating sieve, as above characterized, comprising two superposed screening surfaces connected together by a series of pivoted levers driven by a single vibrator.
A further object of the invention is to provide a novel and improved vibrating sieve which is simple in construction and efiicient in carrying out the purpose for which it is designed.
Other objects and advantages of the invention will appear in the following specification when considered in connection with the accompanying drawing, wherein:
FIG. 1 is a diagrammatic longitudinal sectional view of a sieve constructed in accordance with the present invention, and
FIG. 2 is a transverse sectional view on the line 22 of FIG. 1.
The present invention provides a novel and improved vibrating sieve and, in general comprises a vibrating sieve whose operation is effected by an electromagnetic vibrator designed to vibrate the screening surfaces without the supports of the latter participating in the motion.
The invention further contemplates the use of a pair of vertically spaced superposed screening surfaces driven by one or more electromagnetic vibrators which directly drive the screening surfaces without the supports for the latter participating in the motion.
Referring now to the drawing, there is shown, in FIG. 1, an upper vibrating screen fitted on an upper frame 11, and a lower vibrating screen 12 fitted on a lower frame 13, with both frames fixedly mounted on a central supporting structure or generally rectangular frame 14.
A plurality of shafts or tubes 15 (four such being shown), each pivoting within resilient articulations 16 and 17, are carried by the supporting frame 14.
Each of the shafts 15 supports four driving levers 18 with the upper ends of each of the driving levers 18 pivotally connected by connections 19 to the upper sieve 10 and its lower end pivotally connected by connections 20 to the lower screen 12.
Each of the shafts 15 also supports, at one of its ends,
Patented Dec. 28, 1965 "ice a transmission lever 21 and all of the levers 21 have their upper and lower ends pivotally connected to a pair of connecting rods 22 and 23, respectively.
In the particular embodiment of the invention illustrated, and as shown in FIG. 2, one of the shafts 15 supports an electromagnetic vibrator 24 which, in turn, is connected to an electric control device 25. The shafts 15 may be integral with the bed plate or the magnetic core of the electromagnetic vibrator. In the particular modification shown it is made integral with the bed plate of the vibrator.
The shaft 15 supporting the vibrator 24 pivots alternately inside the articulations 16 and 17 under the action of the vibrator.
The electromagnetic vibrator and the control chest or device 25 may be of any suitable usual type.
The operation of the apparatus is believed apparent. The shaft 15 connected to the vibrator 24 transmits elec tromagnetic vibrations, by means of lever 21 and connecting rods 22 and 23, to the levers 18 mounted on the other shafts 15 and thus transmits vibrations to the upper and lower sieves.
Obviously, if desired, electromagnetic vibrators may be connected to additional ones of the shaft 15. Also, if desired, only one screening surface may be employed.
From the foregoing description, it readly will be seen that there has been provided a novel screening apparatus operated by one or more electromagnetic vibrators and so constructed that only the sieves themselves vibrate while the supporting frame remains stationary.
Obviously, the invention is not restricted to the particular embodiment thereof herein shown and described.
What is claimed is:
A vibrating sieve comprising a supporting frame, a first screening surface mounted on said frame, a second screening surface vertically spaced from and disposed substantially parallel to said first screening surface, a plurality of shafts resiliently and pivotally mounted on said frame between said spaced screening surfaces and disposed substantially parallel to each other, lever means rigidly secured to one end of each of said plurality of said shafts, said lever means comprising a plurality of levers connected at their upper and lower ends to a pair of connecting rods, an electromagnetic drive means connected to at least one of said plurality of shafts, and a plurality of drive lever means each rigidly secured to one shaft and driven thereby, means pivotally connecting said drive lever means between said first and second screening surfaces, said shafts connected to said electromagnetic drive means, said lever means associated with said shafts, said connecting rods, and said drive lever means imparting the vibrational forces produced by said electromagnetic drive means to said first and second screening surfaces.
References Cited by the Examiner UNITED STATES PATENTS 1,456,801 5/1923 Hoyle 2093 10 1,686,322 10/1928 Henderson 209368 1,983,676 12/ 1934 McReynolds 209--347 2,329,773 9/ 1943 Leahy 2093 10 3,070,230 12/ 1962 Peterson 2093 10 FOREIGN PATENTS 931,218 8/ 1955 Germany. 518,185 2/ 1940 Great Britain.
HARRY B. THORNTON, Primary Examiner.
HERBERT L. MARTIN, Examiner.
US221505A 1961-09-08 1962-09-05 Vibrating sieves Expired - Lifetime US3225926A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR872810A FR1299963A (en) 1961-09-08 1961-09-08 Vibrating sieve

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DE (1) DE1239919B (en)
FR (1) FR1299963A (en)
GB (1) GB1005226A (en)
SE (1) SE305110B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3706376A (en) * 1969-06-13 1972-12-19 Rheinische Werkzeug & Maschf Screen with differently tensioned surface zones
US3796311A (en) * 1970-02-24 1974-03-12 Rheinische Werkzeug & Maschf Vibratory sifting machine with strikers
US4836385A (en) * 1988-08-12 1989-06-06 Slesarenko Vladimir F Vibratory screening machine
US4839036A (en) * 1986-12-10 1989-06-13 Vsesojuzny Nauchno-Issledovatelsky I Proektny Institut Mekhanicheskoi Vibratory screening machine
US4861463A (en) * 1986-12-10 1989-08-29 Vsesojuzny Nauchno-Issledovatelsky Institut Mekhanicheskoi Obrabotki Poleznykh Iskopaemykh Vibratory screening machine
US20130323384A1 (en) * 2012-06-05 2013-12-05 Safefresh Technologies, Llc Mechanical processes for separating tallow and lean beef from a single boneless beef supply

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT322477B (en) * 1973-10-24 1975-05-26 Binder Co Ag SCREENING MACHINE
US4529009A (en) * 1983-08-03 1985-07-16 Plascoat U.K. Limited Multiple core hose

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1456801A (en) * 1923-05-29 hoyle
US1686322A (en) * 1925-04-17 1928-10-02 Paper Patents Co Paper-making machinery
US1983676A (en) * 1931-12-08 1934-12-11 W S Tyier Company Method of and apparatus for screening
GB518185A (en) * 1938-08-17 1940-02-20 Jes Elius Nissen Improvements in or relating to screening apparatus
US2329773A (en) * 1941-05-31 1943-09-21 Richard A Leahy Vibrating screen
DE931218C (en) * 1953-07-03 1955-08-04 Carl Haver & Ed Boecker Vibrating silo lock
US3070230A (en) * 1958-12-12 1962-12-25 Lottie J Peterson Apparatus for separating materials

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE904878C (en) * 1949-07-02 1954-02-22 Eisen & Stahlind Ag Oscillating device
DE1697504U (en) * 1952-05-10 1955-04-28 Paul Dr Brueninghaus DIRECT DRIVE OF SCREEN FABRICS FOR SCREEN PURPOSES.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1456801A (en) * 1923-05-29 hoyle
US1686322A (en) * 1925-04-17 1928-10-02 Paper Patents Co Paper-making machinery
US1983676A (en) * 1931-12-08 1934-12-11 W S Tyier Company Method of and apparatus for screening
GB518185A (en) * 1938-08-17 1940-02-20 Jes Elius Nissen Improvements in or relating to screening apparatus
US2329773A (en) * 1941-05-31 1943-09-21 Richard A Leahy Vibrating screen
DE931218C (en) * 1953-07-03 1955-08-04 Carl Haver & Ed Boecker Vibrating silo lock
US3070230A (en) * 1958-12-12 1962-12-25 Lottie J Peterson Apparatus for separating materials

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3706376A (en) * 1969-06-13 1972-12-19 Rheinische Werkzeug & Maschf Screen with differently tensioned surface zones
US3796311A (en) * 1970-02-24 1974-03-12 Rheinische Werkzeug & Maschf Vibratory sifting machine with strikers
US4839036A (en) * 1986-12-10 1989-06-13 Vsesojuzny Nauchno-Issledovatelsky I Proektny Institut Mekhanicheskoi Vibratory screening machine
US4861463A (en) * 1986-12-10 1989-08-29 Vsesojuzny Nauchno-Issledovatelsky Institut Mekhanicheskoi Obrabotki Poleznykh Iskopaemykh Vibratory screening machine
US4836385A (en) * 1988-08-12 1989-06-06 Slesarenko Vladimir F Vibratory screening machine
US20130323384A1 (en) * 2012-06-05 2013-12-05 Safefresh Technologies, Llc Mechanical processes for separating tallow and lean beef from a single boneless beef supply
US9167843B2 (en) * 2012-06-05 2015-10-27 Anthony J. M. Garwood Mechanical processes for separating tallow and lean beef from a single boneless beef supply
US10212960B2 (en) 2012-06-05 2019-02-26 Anthony J. M. Garwood Mechanical processes for separating tallow and lean beef from a single boneless beef supply

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Publication number Publication date
FR1299963A (en) 1962-07-27
GB1005226A (en) 1965-09-22
DE1239919B (en) 1967-05-03
SE305110B (en) 1968-10-14

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