CA3025356A1 - Adjustable gap gravity grader - Google Patents
Adjustable gap gravity grader Download PDFInfo
- Publication number
- CA3025356A1 CA3025356A1 CA3025356A CA3025356A CA3025356A1 CA 3025356 A1 CA3025356 A1 CA 3025356A1 CA 3025356 A CA3025356 A CA 3025356A CA 3025356 A CA3025356 A CA 3025356A CA 3025356 A1 CA3025356 A1 CA 3025356A1
- Authority
- CA
- Canada
- Prior art keywords
- bars
- cam follower
- cam
- support frame
- slotted
- 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.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/90—Sorting, grading, counting or marking live aquatic animals, e.g. sex determination
- A01K61/95—Sorting, grading, counting or marking live aquatic animals, e.g. sex determination specially adapted for fish
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C25/00—Processing fish ; Curing of fish; Stunning of fish by electric current; Investigating fish by optical means
- A22C25/04—Sorting fish; Separating ice from fish packed in ice
-
- 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
-
- 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
Abstract
An adjustable gap gravity grader consists of a support frame and a movable carriage. A plurality of bars are supported in parallel spaced relation by the support frame with gaps between each of the plurality of bars. Each of the plurality of bars has either a cam follower or a slotted cam plate. There is mounted to the carriage another of the cam follower or the slotted cam plate, such that each cam follower is engaged with one slotted cam plate. Movement of the carriage relative to the support frame causes relative movement of the cam follower and the slotted cam plate with which the cam follower is engaged. The cam follower follows a path defined by the slotted cam plate, thereby moving each of the plurality of bars laterally in unison and altering the size of the gaps between each of the plurality of bars.
Description
TITLE
[0001] Adjustable Gap Gravity Grader FIELD
[0001] Adjustable Gap Gravity Grader FIELD
[0002] The adjustable gap gravity grader described was developed for the purpose of grading different sizes of fish, but can be used for grading other things based upon size, such as fruit or ball bearings.
BACKGROUND
BACKGROUND
[0003] A gravity grader is used to separate product based upon size. The gravity grader consists of series of bars with gaps between the bars and a series of underlying collectors.
Product moves along the gravity grader from a first end to second end. The size of the gaps increase from the first end toward the second end. In operation, a relatively small product of a first size will drop by force of gravity through relatively small gaps at a first end into a first collector, while relatively larger product continues to move along the bars to the next separation section. A next size of product of a second size will drop by force of gravity through the gaps, where the size of the gaps have increased, into a second collector, while relatively larger product continues to move along the bars.
Product moves along the gravity grader from a first end to second end. The size of the gaps increase from the first end toward the second end. In operation, a relatively small product of a first size will drop by force of gravity through relatively small gaps at a first end into a first collector, while relatively larger product continues to move along the bars to the next separation section. A next size of product of a second size will drop by force of gravity through the gaps, where the size of the gaps have increased, into a second collector, while relatively larger product continues to move along the bars.
[0004] It will be appreciated that a single gravity grader may be used to perform multiple grade separations or a series of gravity graders may be used in series, with each gravity grader having a different separation gap. It will also be appreciated that there can be any number of separation gaps with associated collectors, depending upon the number of grades desired.
[0005] Although gravity graders originally had fixed bar spacing, gravity graders are now available that allow the gaps between the bars in each separation section to be adjusted with screw adjustments. It is this ability to adjust the gaps that is the focus of this patent.
SUMMARY
SUMMARY
[0006] There is provided an adjustable gap gravity grader which consists of a support frame and a movable carriage. A plurality of bars are supported in parallel spaced relation by the support frame with gaps between each of the plurality of bars. Each of the plurality of bars has a longitudinal axis. The plurality of bars are fixed against longitudinal movement along the support frame in a direction defined by the longitudinal axis, while remaining laterally movable along the support frame toward and away from each other.
Each of the plurality of bars having either a cam follower or a slotted cam plate. There is mounted to the carriage another of the cam follower or the slotted cam plate, such that each cam follower is engaged with one slotted cam plate. Movement of the carriage relative to the support frame causes relative movement of the cam follower and the slotted cam plate with which the cam follower is engaged. The cam follower follows a path defined by the slotted cam plate, thereby moving each of the plurality of bars laterally in unison and altering the size of the gaps between each of the plurality of bars.
Each of the plurality of bars having either a cam follower or a slotted cam plate. There is mounted to the carriage another of the cam follower or the slotted cam plate, such that each cam follower is engaged with one slotted cam plate. Movement of the carriage relative to the support frame causes relative movement of the cam follower and the slotted cam plate with which the cam follower is engaged. The cam follower follows a path defined by the slotted cam plate, thereby moving each of the plurality of bars laterally in unison and altering the size of the gaps between each of the plurality of bars.
[0007] In the description which follows each of the plurality of bars has two cam followers and the slotted cam plate for each one of the plurality of bars is mounted to the carriage.
Movement of the carriage causes each slotted cam plate to move along the longitudinal axis of one of the plurality of bars with the cam followers following the slots in the slotted cam plates. It will be appreciated, however, that the positioning of the cam follower and the slotted cam plate could be reversed, with the slotted cam plate mounted to the plurality of bars and the cam follower mounted to the carriage.
Movement of the carriage causes each slotted cam plate to move along the longitudinal axis of one of the plurality of bars with the cam followers following the slots in the slotted cam plates. It will be appreciated, however, that the positioning of the cam follower and the slotted cam plate could be reversed, with the slotted cam plate mounted to the plurality of bars and the cam follower mounted to the carriage.
[0008] There are various ways in which the plurality of bars may be mechanically fixed against longitudinal movement along the support frame in a direction defined by the longitudinal axis, while remaining laterally movable along the support frame toward and away from each other. One way will hereinafter be described with respect to a first embodiment and another way will be described in relation to the second embodiment.
[0009] The bars can have various shapes and configurations. One shape and configuration will be described with respect to the first embodiment and another shape and configuration will be described in relation to the third embodiment.
[0010] It will be appreciated that the above described adjustable gap gravity grader, provides for greater ease of adjustment as compared to screw adjustment systems and provides other advantages that will be hereinafter further described.
BRIEF DESCRIPTION OF THE DRAWINGS
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] These and other features will become more apparent from the following description in which reference is made to the appended drawings, the drawings are for the purpose of illustration only and are not intended to be in any way limiting, wherein:
[0012] FIG. 1 is a top perspective view of an adjustable gap gravity grader.
[0013] FIG. 2 is a side elevation view of the adjustable gap gravity grader of FIG. 1 in a first adjustment position.
[0014] FIG. 2A is a perspective view, in section, taken along section lines 2A-2A of FIG.
2.
2.
[0015] FIG. 3 is a side elevation view of the adjustable gap gravity grader of FIG. 1, in a second adjustment position.
[0016] FIG. 3A is a perspective view, in section, taken along section lines 3A-3A of FIG. 3.
[0017] FIG. 4 is an exploded bottom perspective view of the adjustable gap gravity grader of FIG. 1.
[0018] FIG. 4A is detailed perspective view taken from FIG. 4.
[0019] FIG. 5 is a top plan view of the adjustable gap gravity grader of FIG. 1.
[0020] FIG. 6 is a front elevation view, in section, of the adjustable gap gravity grader of FIG. 5.
[0021] FIG. 6A is detailed section view taken from FIG. 6.
[0022] FIG. 7 is a bottom plan view of the adjustable gap gravity grader of FIG. 1, in a first position.
[0023] FIG. 7A is a detailed bottom plan view of the adjustable gap gravity grader of FIG. 7.
[0024] FIG. 8 is an exploded top perspective view of the adjustable gap gravity grader of FIG. 1.
[0025] FIG. 8A is detailed perspective view taken from FIG. 8.
[0026] FIG. 9 is a bottom plan view of the adjustable gap gravity grader of FIG. 1, in a second position.
[0027] FIG. 9A is a detailed bottom plan view taken from grader of FIG.
9.
9.
[0028] FIG. 10 is a top perspective view of a second embodiment of adjustable gap gravity grader.
[0029] FIG. 11 is a perspective view, in section, of the second embodiment of adjustable gap gravity grader of FIG. 10.
[0030] FIG. 11A is a detailed section view from FIG. 11.
[0031] FIG. 12 is an exploded perspective view of the second embodiment of adjustable gap gravity grader of FIG. 10.
[0032] FIG. 13 is a front elevation view, in section, of the second embodiment of adjustable gap gravity grader of FIG. 10.
[0033] FIG. 13A is detailed section view taken from FIG. 13.
[0034] FIG. 14 is a top perspective view of a third embodiment of adjustable gap gravity grader.
[0035] FIG. 15 is an exploded bottom perspective view of the third embodiment of adjustable gap gravity grader of FIG. 14.
DETAILED DESCRIPTION
DETAILED DESCRIPTION
[0036] A first embodiment of adjustable gap gravity grader, generally identified by reference numeral 10, will now be described with reference to FIG. 1 through FIG. 9A. A
second embodiment of adjustable gap gravity grader, generally identified by reference numeral 100, will then be described with reference to FIG. 10 through FIG.
13A. A third embodiment of adjustable gap gravity grader, generally identified by reference numeral 200, will then be described with reference to FIG. 14 and FIG. 15.
Structure and Relationship of Parts:
second embodiment of adjustable gap gravity grader, generally identified by reference numeral 100, will then be described with reference to FIG. 10 through FIG.
13A. A third embodiment of adjustable gap gravity grader, generally identified by reference numeral 200, will then be described with reference to FIG. 14 and FIG. 15.
Structure and Relationship of Parts:
[0037] Referring to FIG. 1, adjustable gap gravity grader 10 consists of a support frame 12. A plurality of bars 16 are supported in parallel spaced relation by support frame 12 with gaps 18 between each of plurality of bars 16. Each of plurality of bars 16 has a longitudinal axis 20.
[0038] Referring to FIG. 6 and FIG. 6A, each of plurality of bars 16 are fixed against longitudinal movement along support frame 12 in a direction defined by longitudinal axis 20, while remaining laterally movable along support frame 12 toward and away from each other.
This is accomplished by connecting each of plurality of bars 16 to guide sleeves 22 and .. having a lateral guide pipe 24 forming a portion of support frame 12.
Lateral guide pipe 24 extends through each guide sleeve 22. The engagement between guide sleeve 22 and lateral guide pipe 24 prevents movement of each of plurality of bars 16 along longitudinal axis 20.
However, each guide sleeve 22 remains capable of sliding laterally along lateral guide pipe 24. FIG. 4A provides an exploded view of guide sleeves 22 and lateral guide pipe 24.
This is accomplished by connecting each of plurality of bars 16 to guide sleeves 22 and .. having a lateral guide pipe 24 forming a portion of support frame 12.
Lateral guide pipe 24 extends through each guide sleeve 22. The engagement between guide sleeve 22 and lateral guide pipe 24 prevents movement of each of plurality of bars 16 along longitudinal axis 20.
However, each guide sleeve 22 remains capable of sliding laterally along lateral guide pipe 24. FIG. 4A provides an exploded view of guide sleeves 22 and lateral guide pipe 24.
[0039] Referring to FIG. 4 there is provided a movable carriage 14.
Referring to FIG.
2A and FIG. 3A, movable carriage 14 is supported, in part, by lateral pipe guide 24 of support frame 12. Referring to FIG. 4, movable carriage has side rails 28.
Support frame 12 has tubular sleeves 26 that receive the side rails 28 of movable carriage 14.
When carriage 14 moves, side rails 28 of movable carriage 14 slide through tubular sleeves 26 of support frame 12. This relationship can be seen in FIG. 7A, FIG. 8A and FIG. 9A.
Referring to FIG.
2A and FIG. 3A, movable carriage 14 is supported, in part, by lateral pipe guide 24 of support frame 12. Referring to FIG. 4, movable carriage has side rails 28.
Support frame 12 has tubular sleeves 26 that receive the side rails 28 of movable carriage 14.
When carriage 14 moves, side rails 28 of movable carriage 14 slide through tubular sleeves 26 of support frame 12. This relationship can be seen in FIG. 7A, FIG. 8A and FIG. 9A.
[0040] Referring to FIG. 8A, mounted to carriage 14 is a plurality of slotted cam plates 32. Referring to FIG. 6A each of the plurality of bars has a first cam follower 30A and a second cam follower 30B. Referring to FIG. 8A, each slotted cam plate 32 has a first cam slot 33A that engages first cam follower 30A and a second cam slot 33B that engages second cam follower 30B. First cam slot 33A is longitudinal to accommodate longitudinal movement of first cam follower 30A. Second cam slot 33B is angled to impart a lateral force through second cam follower 30B to each of plurality of bars 16.
[0041] Referring to FIG. 1, movement is imparted to carriage 14 by a hand operated screw mechanism 34. It will be appreciated that a motor driven mechanism could be substituted, as long as means is provided to selectively move carriage 14 in order to move slotted cam plates 32 toward and away from first cam follower 30A and second cam follower 30B.
Operation:
Operation:
[0042] Referring to FIG. 1, hand operated screw mechanism 34 is used to selectively move carriage 14 relative to support frame 12. Referring to FIG. 9 and FIG.
9A, carriage 14 is capable of movement as side rails 28 of movable carriage 14 slide through tubular sleeves 26 of support frame 12. Referring to FIG. 6A, FIG. 8A and FIG. 9A, movement of carriage 14 causes relative movement of first cam follower 30A and second cam follower 30B and slotted cam plate 32 with which first cam follower 30A and second cam follower 30B are engaged. First cam follower 30A follows a path defined by first cam slot 33A
of slotted cam plate 32, with first cam slot 33A being longitudinal to accommodate longitudinal movement of first cam follower 30A. Second cam follower 30B follows a path defined by second cam slot 33B of slotted cam plate 32, with second cam slot 33B being angled to impart a lateral force through second cam follower 30B to each of plurality of bars 16.
Referring to FIG. 6 and FIG. 6A, lateral guide pipe 24 extending through guides sleeves 22 prevents movement .. of each of plurality of bars 16 along longitudinal axis 20, so movement can only occur with guide sleeves 22 sliding laterally along lateral guide pipe 24. Referring to FIG. 2A and through FIG. 3A, this results in each of plurality of bars 16 moving laterally in unison and altering the size of gaps 18 between each of plurality of bars 16.
Variations:
9A, carriage 14 is capable of movement as side rails 28 of movable carriage 14 slide through tubular sleeves 26 of support frame 12. Referring to FIG. 6A, FIG. 8A and FIG. 9A, movement of carriage 14 causes relative movement of first cam follower 30A and second cam follower 30B and slotted cam plate 32 with which first cam follower 30A and second cam follower 30B are engaged. First cam follower 30A follows a path defined by first cam slot 33A
of slotted cam plate 32, with first cam slot 33A being longitudinal to accommodate longitudinal movement of first cam follower 30A. Second cam follower 30B follows a path defined by second cam slot 33B of slotted cam plate 32, with second cam slot 33B being angled to impart a lateral force through second cam follower 30B to each of plurality of bars 16.
Referring to FIG. 6 and FIG. 6A, lateral guide pipe 24 extending through guides sleeves 22 prevents movement .. of each of plurality of bars 16 along longitudinal axis 20, so movement can only occur with guide sleeves 22 sliding laterally along lateral guide pipe 24. Referring to FIG. 2A and through FIG. 3A, this results in each of plurality of bars 16 moving laterally in unison and altering the size of gaps 18 between each of plurality of bars 16.
Variations:
[0043] There will now be described certain aspects of second embodiment 100. Those elements of second embodiment 100 that do not differ from first embodiment 10 will not be described in detail and will be assigned the same reference numerals.
[0044] An important aspect of adjustable gap gravity grader is that the plurality of bars are fixed against longitudinal movement along the support frame in a direction defined by the longitudinal axis, while remaining laterally movable along the support frame toward and away from each other. In first embodiment 10, this was achieved by having a lateral guide pipe 24 secured to support frame 12 and a guide sleeve 22 is secured to each of plurality of bars 16. Lateral guide pipe 24 extended through each guide sleeve 22 and restricted longitudinal movement of each of the plurality of bars 16. However, each guide sleeve 22 remained movable laterally along lateral guide pipe 24.
[0045] The purpose of including second embodiment 100 is to show that this may be achieved in other ways. Referring to FIG. 10 through 13A, each of plurality of bars 16 is connected to a guide plate 122. Each guide plate 122 is confined within a lateral guide channel 124 mounted to support frame 12. Guide channel 124 confines and prevents movement of each guide plate 122, thereby preventing movement of each of plurality of bars 16 along longitudinal axis 20. However, each guide plate 122 is capable of sliding laterally along lateral guide channel 124.
[0046] There will now be described certain aspects of third embodiment 200. Those elements of second embodiment 200 that do not differ from first embodiment 10 will not be described in detail and will be assigned the same reference numerals.
[0047] In first embodiment 10, each of plurality of bars 16 were cylindrical. Referring to FIG. 14, third embodiment 200 has been illustrated to show that plurality of bars 216 may take other shapes without adversely effecting function.
[0048]
Referring to FIG.15, another reason third embodiment 200 has been selected for illustration is that these components have been reversed. In first embodiment 10, cam plates 32 were carried by movable carriage 14 and cam followers 30A and 30B were carried by bars 16. In third embodiment 200, cam followers are carried by movable carriage 14 and cam plates 32 are carried by bars 16.
Referring to FIG.15, another reason third embodiment 200 has been selected for illustration is that these components have been reversed. In first embodiment 10, cam plates 32 were carried by movable carriage 14 and cam followers 30A and 30B were carried by bars 16. In third embodiment 200, cam followers are carried by movable carriage 14 and cam plates 32 are carried by bars 16.
[0049] In first embodiment 10, there was a pair of cam followers; first cam follower 30A
and a second cam follower 30B. Third embodiment 200 has a single cam follower 30.
and a second cam follower 30B. Third embodiment 200 has a single cam follower 30.
[0050] In first embodiment 10, movable carriage 14 had side rails 28 and support frame 12 had tubular sleeves 26, with side rails 28 of movable carriage sliding through tubular sleeves 26 of support frame 12 during movement. In third embodiment, support frame 12 has side rails 28 and movable carriage 14 has tubular sleeves 126, with tubular sleeves 126 of carriage 14 sliding over side rails 28 of support frame during movement.
[0051] Third embodiment 200 also helps in demonstrating how bars 16 must travel different distances. Each bar 16 and cam plate set 32 has an increasingly larger angle as the bar position is farther from a central position. The increasing angle provides an increasing lateral movement as movable carriage 14 moves longitudinally. Gap opening 18 is equal for all bars 16 due to the increasing lateral movement of each bar 16 to its adjacent bar 16.
Advantages:
Advantages:
[0052] The above described adjustable gap gravity grader provides a number advantages over adjustable gap gravity graders that have screw type adjustments.
[0053] 1. It is not uncommon for there to be nine or more parallel bars in an adjustable gap gravity grader. As an adjustment is made, not all bars move an equal distance.
Outermost bars must move proportionately farther than inner bars. This makes for a more time consuming adjustment to ensure accurate placement, unless outer bars are equipped with screws that have a thread pitch that causes more travel than the thread pitch used for the inner bars. Having differing thread pitches to achieve this objective of differing bar movement is expensive, as it requires custom machining.
Outermost bars must move proportionately farther than inner bars. This makes for a more time consuming adjustment to ensure accurate placement, unless outer bars are equipped with screws that have a thread pitch that causes more travel than the thread pitch used for the inner bars. Having differing thread pitches to achieve this objective of differing bar movement is expensive, as it requires custom machining.
[0054] 2.
Lubrication and a protective cover are required in order to keep water and slime out of screws used to make screw adjustments. This necessitates frequent and costly maintenance. The adjustable gap gravity grader described above is less effected by water and slime.
Lubrication and a protective cover are required in order to keep water and slime out of screws used to make screw adjustments. This necessitates frequent and costly maintenance. The adjustable gap gravity grader described above is less effected by water and slime.
[0055] In this patent document, the word "comprising" is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article "a" does not exclude the possibility that more than one of the element is present, unless the context clearly requires that there be one and only one of the elements.
[0056] The scope of the claims should not be limited by the illustrated embodiments set forth as examples, but should be given the broadest interpretation consistent with a purposive construction of the claims in view of the description as a whole.
Claims (5)
1. An adjustable gap gravity grader, comprising:
a support frame;
a plurality of bars supported in parallel spaced relation by the support frame with gaps between each of the plurality of bars, each of the plurality of bars having a longitudinal axis, the plurality of bars being fixed against longitudinal movement along the support frame in a direction defined by the longitudinal axis, while remaining laterally movable along the support frame toward and away from each other, each of the plurality of bars having one of a cam follower or a slotted cam plate;
a carriage to which is mounted another of the cam follower or the slotted cam plate such that each cam follower is engaged with one slotted cam plate;
movement of the carriage relative to the support frame causes relative movement of the cam follower and the slotted cam plate with which the cam follower is engaged, with the cam follower following a path defined by the slotted cam plate, thereby moving each of the plurality of bars laterally in unison and altering the size of the gaps between each of the plurality of bars.
a support frame;
a plurality of bars supported in parallel spaced relation by the support frame with gaps between each of the plurality of bars, each of the plurality of bars having a longitudinal axis, the plurality of bars being fixed against longitudinal movement along the support frame in a direction defined by the longitudinal axis, while remaining laterally movable along the support frame toward and away from each other, each of the plurality of bars having one of a cam follower or a slotted cam plate;
a carriage to which is mounted another of the cam follower or the slotted cam plate such that each cam follower is engaged with one slotted cam plate;
movement of the carriage relative to the support frame causes relative movement of the cam follower and the slotted cam plate with which the cam follower is engaged, with the cam follower following a path defined by the slotted cam plate, thereby moving each of the plurality of bars laterally in unison and altering the size of the gaps between each of the plurality of bars.
2. The adjustable gap gravity separator of Claim 1, wherein a lateral guide pipe is secured to the support frame and a guide sleeve is secured to each of the plurality of bars, the lateral guide pipe extending through each guide sleeve, such that longitudinal movement of each of the plurality of bars is restricted by the lateral guide pipe, while permitting the guide sleeve for each of the plurality of bars to move laterally along the lateral guide pipe.
3. The adjustable gap gravity separator of Claim 1, wherein a lateral guide channel is secured to the support frame and a guide plate is secured to each of the plurality of bars, each guide plate being confined within the lateral guide channel such that longitudinal movement of each of the plurality of bars is restricted by the lateral guide channel, while permitting the guide plate for each of the plurality of bars to move laterally along the lateral guide channel.
4. The adjustable gap gravity separator of Claim 1, wherein each of the plurality of bars has at least one cam follower and the slotted cam plate for each of the plurality of bars is mounted to the carriage, movement of the carriage causing each slotted cam plate to move along the longitudinal axis of one of the plurality of bars.
5. The adjustable gap gravity separator of Claim 4, wherein each of the plurality of bars has a first cam follower and a second cam follower and each slotted cam plate has a first cam slot that engages the first cam follower and a second cam slot that engages the second cam follower, the first cam slot is longitudinal to accommodate longitudinal movement of the first cam follower and the second cam slot is angled whereby a lateral force is imparted through the second cam follower to each of the plurality of bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA3025356A CA3025356A1 (en) | 2018-11-27 | 2018-11-27 | Adjustable gap gravity grader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA3025356A CA3025356A1 (en) | 2018-11-27 | 2018-11-27 | Adjustable gap gravity grader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA3025356A1 true CA3025356A1 (en) | 2020-05-27 |
Family
ID=70848344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3025356A Abandoned CA3025356A1 (en) | 2018-11-27 | 2018-11-27 | Adjustable gap gravity grader |
Country Status (1)
| Country | Link |
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| CA (1) | CA3025356A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112403902A (en) * | 2020-10-29 | 2021-02-26 | 通道马龙茶业有限责任公司 | Tea leaf sieve |
| CN114247635A (en) * | 2021-12-30 | 2022-03-29 | 太原科技大学 | Vibrating screen with adjustable screen holes |
-
2018
- 2018-11-27 CA CA3025356A patent/CA3025356A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112403902A (en) * | 2020-10-29 | 2021-02-26 | 通道马龙茶业有限责任公司 | Tea leaf sieve |
| CN114247635A (en) * | 2021-12-30 | 2022-03-29 | 太原科技大学 | Vibrating screen with adjustable screen holes |
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