US2690265A - Coal dehydrating screen - Google Patents
Coal dehydrating screen Download PDFInfo
- Publication number
- US2690265A US2690265A US199652A US19965250A US2690265A US 2690265 A US2690265 A US 2690265A US 199652 A US199652 A US 199652A US 19965250 A US19965250 A US 19965250A US 2690265 A US2690265 A US 2690265A
- Authority
- US
- United States
- Prior art keywords
- wires
- screen
- coal
- frame
- groups
- 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
Links
- 239000003245 coal Substances 0.000 title description 9
- 238000003466 welding Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000002889 sympathetic effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/28—Strainers not provided for elsewhere
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S55/00—Gas separation
- Y10S55/31—Filter frame
Definitions
- This invention relates to screen construction, and specifically to screens used in the coal industry for dehydrating washed coal.
- the primary object of the invention is to provide a screen wherein the screening wires thereof are so constructed and arranged within the frame of the screen, and with respect to each other that sympathetic or simultaneous vibrations of the Wires of which the screeen is constructed, under the weight of the coal passing thereover will be eliminated, thereby increasing the life expectancy of the screen by decreasing wear due to constant and simultaneous vibrations of the wires of the screen.
- An important object of the invention is to arrange the wires of the screen in groups, the wires of each group being secured together and the groups being arranged in staggered relation with respect to each other across the screen, with the result that the groups of Wires will vibrate at irregular intervals thereby distributing strain directed to the wires by the weight of the coal passing thereover.
- Figure 1 is a longitudinal sectional view through a screen constructed in accordance with the invention.
- Fig. 2 is a bottom view of the screen illustrating wires secured together in staggered groups.
- Fig. 3 is an enlarged sectional view taken on line 3--3 of Fig. 1.
- the frame of the screen is indicated generally by the reference character 5, the side bars of which being formed with openings to receive the supporting rods 6 that are arranged in parallel spaced relation with respect to each other, throughout the length of the screen frame.
- These rods 6 provide supports for the screen wires 1 that are formed with loops 8 that are so located that the loops fall opposite to the supporting rods 6 which are extended therethrough, securing the wires 1 of the screen within the frame.
- the loops 8 of the wires which are positioned over the rods 6 adjacent to the ends of the frame, are secured together as by welding indicated at 9, throughout the entire width of the screen.
- the wires of the screen are divided into groups of predetermined numbers of wires, the loops of each group being secured together by welding indicated at it.
- the groups of wires formed by welding predetermined groups of wires together are arranged in staggered relation with respect to each other so that the wires of the groups vibrate independently of each other, thereby distributing wear which ordinarily would be directed to the wires adjacent to the loops, to the end that the life expectancy of the wires of the screen will be increased over wire screens wherein the wires are secured to their supporting rods independently of each other.
- wire screen is illustrated as resting on brackets I I that are secured to the frame of a fiume, to the end that the screen may be readily and easily removed or replaced.
- a frame embodying side members, supporting rods disposed transversely of said frame, the ends of said rods being connected to said side members, a plurality of parallel screen wires extending longitudinally of the frame providing a screening surface within the frame, adjacent groups of screen wires being welded together and to alternate supporting rods at points in staggered relation with respect to each other, whereby said groups of wires flex independently of each other.
- a frame embodying side members, supporting rods disposed transversely of said frame, a plurality of groups of parallel screen wires extending longitudinally of the frame throughout the length of the frame, spaced loops formed on said Wires in which said supporting rods are secured by welding, said loops of each group of wires being also welded together, and adjacent groups of screen wires being welded to alternate supporting rods at points in staggered relation with respect to each other, whereby said groups of wires flex independently of each other.
Description
p 28, 1954 w. E. BlXBY 2,690,265
COAL DEHYDRATING SCREEN Filed Dec. 7, 1950 mziziwz INVENTOR,
BY I I I ATTORNEYS Patented Sept. 28, 1954 UNITED STATES PATENT OFFICE 2 Claims.
This invention relates to screen construction, and specifically to screens used in the coal industry for dehydrating washed coal.
The primary object of the invention is to provide a screen wherein the screening wires thereof are so constructed and arranged within the frame of the screen, and with respect to each other that sympathetic or simultaneous vibrations of the Wires of which the screeen is constructed, under the weight of the coal passing thereover will be eliminated, thereby increasing the life expectancy of the screen by decreasing wear due to constant and simultaneous vibrations of the wires of the screen.
An important object of the invention is to arrange the wires of the screen in groups, the wires of each group being secured together and the groups being arranged in staggered relation with respect to each other across the screen, with the result that the groups of Wires will vibrate at irregular intervals thereby distributing strain directed to the wires by the weight of the coal passing thereover.
With the foregoing and other objects in view which will appear as the'description proceeds, the invention consists of certain novel details of construction and combinations of parts, hereinafter more fully described and pointed out in the claims, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.
Referring to the drawing:
Figure 1 is a longitudinal sectional view through a screen constructed in accordance with the invention.
Fig. 2 is a bottom view of the screen illustrating wires secured together in staggered groups.
Fig. 3 is an enlarged sectional view taken on line 3--3 of Fig. 1.
Referring to the drawing in detail, the frame of the screen is indicated generally by the reference character 5, the side bars of which being formed with openings to receive the supporting rods 6 that are arranged in parallel spaced relation with respect to each other, throughout the length of the screen frame.
These rods 6 provide supports for the screen wires 1 that are formed with loops 8 that are so located that the loops fall opposite to the supporting rods 6 which are extended therethrough, securing the wires 1 of the screen within the frame.
In cross section, the side edges of the wires 1,
converge towards the lower edges of the wires providing spaces between the wires which widen towards the lower edges of the wires so that the screening spaces will be self clearing.
Ordinarily these wires vibrate simultaneously or sympathetically under the weight of coal passing thereover, which vibrations cause excessive wear on the wires to cause them to break ,at theirpoints of mounting on the supporting rods.
As shown, the loops 8 of the wires which are positioned over the rods 6 adjacent to the ends of the frame, are secured together as by welding indicated at 9, throughout the entire width of the screen.
In carrying out the present invention, the wires of the screen are divided into groups of predetermined numbers of wires, the loops of each group being secured together by welding indicated at it. As shown by Fig. 2, the groups of wires formed by welding predetermined groups of wires together, are arranged in staggered relation with respect to each other so that the wires of the groups vibrate independently of each other, thereby distributing wear which ordinarily would be directed to the wires adjacent to the loops, to the end that the life expectancy of the wires of the screen will be increased over wire screens wherein the wires are secured to their supporting rods independently of each other.
In the present showing the wire screen is illustrated as resting on brackets I I that are secured to the frame of a fiume, to the end that the screen may be readily and easily removed or replaced.
Having thus described the invention, what is claimed is:
1. In a coal dehydrating screen, a frame embodying side members, supporting rods disposed transversely of said frame, the ends of said rods being connected to said side members, a plurality of parallel screen wires extending longitudinally of the frame providing a screening surface within the frame, adjacent groups of screen wires being welded together and to alternate supporting rods at points in staggered relation with respect to each other, whereby said groups of wires flex independently of each other.
2. In a coal dehydrating screen, a frame embodying side members, supporting rods disposed transversely of said frame, a plurality of groups of parallel screen wires extending longitudinally of the frame throughout the length of the frame, spaced loops formed on said Wires in which said supporting rods are secured by welding, said loops of each group of wires being also welded together, and adjacent groups of screen wires being welded to alternate supporting rods at points in staggered relation with respect to each other, whereby said groups of wires flex independently of each other.
References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 419,907. Armstrong et al. Jan. 21, 1890 2,010,256 Cole Aug. 6', 1952
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US199652A US2690265A (en) | 1950-12-07 | 1950-12-07 | Coal dehydrating screen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US199652A US2690265A (en) | 1950-12-07 | 1950-12-07 | Coal dehydrating screen |
Publications (1)
Publication Number | Publication Date |
---|---|
US2690265A true US2690265A (en) | 1954-09-28 |
Family
ID=22738457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US199652A Expired - Lifetime US2690265A (en) | 1950-12-07 | 1950-12-07 | Coal dehydrating screen |
Country Status (1)
Country | Link |
---|---|
US (1) | US2690265A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2916145A (en) * | 1956-02-21 | 1959-12-08 | Eimco Corp | Filter construction |
US2924334A (en) * | 1956-11-07 | 1960-02-09 | Ben F Hendrickson | Coal-sizing screen |
US2960233A (en) * | 1957-05-01 | 1960-11-15 | Cimco Corp | Filter and filter medium therefor |
US2979323A (en) * | 1958-05-05 | 1961-04-11 | Leon C Bixby | Heat treating basket |
US3037630A (en) * | 1959-01-26 | 1962-06-05 | Wallace E Bixby | Screen |
US3118204A (en) * | 1961-11-01 | 1964-01-21 | Wedge Wire Corp | Clamp assembly |
US3169111A (en) * | 1960-02-08 | 1965-02-09 | Colin G Rose | Dewatering screen having liquid film disrupting barrier |
US3327853A (en) * | 1963-12-09 | 1967-06-27 | Wedge Wire Corp | Screen |
US3561605A (en) * | 1968-12-30 | 1971-02-09 | Universal Oil Prod Co | Self-cleaning tubular screen |
US4002540A (en) * | 1974-08-09 | 1977-01-11 | Hendrick Manufacturing Company | Screen having parallel slots |
US4184950A (en) * | 1975-07-24 | 1980-01-22 | Hendrick Manufacturing Company | Method and apparatus for dewatering sludge |
US4283278A (en) * | 1978-03-23 | 1981-08-11 | N. Greening Limited | Screens |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US419907A (en) * | 1890-01-21 | Strong | ||
US2010256A (en) * | 1932-04-12 | 1935-08-06 | Cole David | Screening machine |
-
1950
- 1950-12-07 US US199652A patent/US2690265A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US419907A (en) * | 1890-01-21 | Strong | ||
US2010256A (en) * | 1932-04-12 | 1935-08-06 | Cole David | Screening machine |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2916145A (en) * | 1956-02-21 | 1959-12-08 | Eimco Corp | Filter construction |
US2924334A (en) * | 1956-11-07 | 1960-02-09 | Ben F Hendrickson | Coal-sizing screen |
US2960233A (en) * | 1957-05-01 | 1960-11-15 | Cimco Corp | Filter and filter medium therefor |
US2979323A (en) * | 1958-05-05 | 1961-04-11 | Leon C Bixby | Heat treating basket |
US3037630A (en) * | 1959-01-26 | 1962-06-05 | Wallace E Bixby | Screen |
US3169111A (en) * | 1960-02-08 | 1965-02-09 | Colin G Rose | Dewatering screen having liquid film disrupting barrier |
US3118204A (en) * | 1961-11-01 | 1964-01-21 | Wedge Wire Corp | Clamp assembly |
US3327853A (en) * | 1963-12-09 | 1967-06-27 | Wedge Wire Corp | Screen |
US3561605A (en) * | 1968-12-30 | 1971-02-09 | Universal Oil Prod Co | Self-cleaning tubular screen |
US4002540A (en) * | 1974-08-09 | 1977-01-11 | Hendrick Manufacturing Company | Screen having parallel slots |
US4184950A (en) * | 1975-07-24 | 1980-01-22 | Hendrick Manufacturing Company | Method and apparatus for dewatering sludge |
US4283278A (en) * | 1978-03-23 | 1981-08-11 | N. Greening Limited | Screens |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2690265A (en) | Coal dehydrating screen | |
US4380494A (en) | Vibrating screen with self-supporting screen cloth | |
SE501273C2 (en) | Screen drum for sieving suspensions of lignocellulosic fibrous material | |
US2345947A (en) | Screening apparatus | |
US1767814A (en) | Woven-wire screen | |
US2119676A (en) | Trommel | |
US3037630A (en) | Screen | |
US3217881A (en) | Resiliently suspended screen vibrated by impact | |
US2870910A (en) | Screen for use in oscillating screening devices | |
US2142600A (en) | Screen | |
US2708488A (en) | Arrangement in emitting electrodes | |
US1459842A (en) | Screening machine and screen cloth therefor | |
US2086551A (en) | Trommel | |
US4696738A (en) | Material separating surface | |
US2235653A (en) | Screen cloth for high speed vibrating screens | |
US2239765A (en) | Elongated vibratory conveyer | |
US4747856A (en) | Lower end alignment device for electrostatic precipitator collector electrodes | |
US2016972A (en) | Mechanically oscillating screening apparatus | |
SU1227262A1 (en) | Sieve for screening loose materials | |
RU95111882A (en) | VIBRATION Sieve | |
SU1579584A1 (en) | Screen grate | |
GB2073618A (en) | Vibratory screening panels | |
US2944660A (en) | Perforated conveyor for potato diggers and the like | |
SU437539A1 (en) | Sieve | |
US1334579A (en) | Screen |