GB2277046B - Grading apparatus - Google Patents

Grading apparatus

Info

Publication number
GB2277046B
GB2277046B GB9407672A GB9407672A GB2277046B GB 2277046 B GB2277046 B GB 2277046B GB 9407672 A GB9407672 A GB 9407672A GB 9407672 A GB9407672 A GB 9407672A GB 2277046 B GB2277046 B GB 2277046B
Authority
GB
United Kingdom
Prior art keywords
grading apparatus
grading
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
GB9407672A
Other versions
GB9407672D0 (en
GB2277046A (en
Inventor
Christopher Parkinson
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.)
Tickhill Engineering Co Ltd
Original Assignee
Tickhill Engineering Co Ltd
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 Tickhill Engineering Co Ltd filed Critical Tickhill Engineering Co Ltd
Publication of GB9407672D0 publication Critical patent/GB9407672D0/en
Publication of GB2277046A publication Critical patent/GB2277046A/en
Application granted granted Critical
Publication of GB2277046B publication Critical patent/GB2277046B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4636—Regulation of screen apertures
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D17/00—Digging machines with sieving and conveying mechanisms
    • A01D17/06—Digging machines with sieving and conveying mechanisms with rollers or disc screens
    • 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
    • B07B1/10—Screens in the form of endless moving bands
    • 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
    • B07B1/14—Roller screens
    • B07B1/15—Roller screens using corrugated, grooved or ribbed rollers
    • B07B1/155—Roller screens using corrugated, grooved or ribbed rollers the rollers having a star shaped cross section

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Combined Means For Separation Of Solids (AREA)
GB9407672A 1993-04-16 1994-04-18 Grading apparatus Expired - Lifetime GB2277046B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB939307886A GB9307886D0 (en) 1993-04-16 1993-04-16 Grading apparatus

Publications (3)

Publication Number Publication Date
GB9407672D0 GB9407672D0 (en) 1994-06-08
GB2277046A GB2277046A (en) 1994-10-19
GB2277046B true GB2277046B (en) 1996-11-20

Family

ID=10733950

Family Applications (2)

Application Number Title Priority Date Filing Date
GB939307886A Pending GB9307886D0 (en) 1993-04-16 1993-04-16 Grading apparatus
GB9407672A Expired - Lifetime GB2277046B (en) 1993-04-16 1994-04-18 Grading apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB939307886A Pending GB9307886D0 (en) 1993-04-16 1993-04-16 Grading apparatus

Country Status (1)

Country Link
GB (2) GB9307886D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2938157B1 (en) * 2008-11-12 2013-01-04 Gregoire TRI TABLE
FR2967926B1 (en) 2010-11-26 2014-09-12 Pellenc Sa ROLLER SORTING SHEET WITH ADJUSTABLE AND ADJUSTABLE SPACING; MACHINERY AND INSTALLATIONS BY APPLYING.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1599309A (en) * 1978-05-22 1981-09-30 Wysall Tractor Co Ltd Grading apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1599309A (en) * 1978-05-22 1981-09-30 Wysall Tractor Co Ltd Grading apparatus

Also Published As

Publication number Publication date
GB9307886D0 (en) 1993-06-02
GB9407672D0 (en) 1994-06-08
GB2277046A (en) 1994-10-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030418

PE20 Patent expired after termination of 20 years

Effective date: 20030418