US2003923A - Screen plate support - Google Patents
Screen plate support Download PDFInfo
- Publication number
- US2003923A US2003923A US750975A US75097534A US2003923A US 2003923 A US2003923 A US 2003923A US 750975 A US750975 A US 750975A US 75097534 A US75097534 A US 75097534A US 2003923 A US2003923 A US 2003923A
- Authority
- US
- United States
- Prior art keywords
- saddle
- yokes
- screen
- plate support
- screen plate
- 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
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
- D21D5/04—Flat screens
Definitions
- This invention relates to screen supports or screens employed in paper pulp mills and the like, and particularly to an improved support which facilitates the assembling and prolongs the life of the screens.
- the screens employed in handling paper pulp are large foraminous plates which aresupported in the vat by bars, usually of hard wood.
- the edges of the screen plates have been secured to the bars by metal strips fastened by bolts or screws.
- the structure, which is subjected to the action of the liquid passing the screens, has a relatively short life, and repairsV and replacements for maintenance materially increase the cost of operation.
- FIG. 1 is a side elevation of the improved screen support
- Fig. 2 is a section on the line 2-2 of Fig. 1.
- the side walls 5 indicate a tank or vat in which the screen is supported.
- a plurality of bars 6 of hard wood or other suitable material extend between the walls 5 at spaced intervals. 'I'he number of such bars will depend upon the area of the screen, which consists of a plurality of formaminous plates I of bronze, brass, or other suitable metal adapted to withstand the corrosive action of the liquid which passes the screen.
- a saddle 8 of any suitable corrosion resisting metal which is co-extensive in length with the bar 6 and is provided with recesses 9 which are adapted to receive and hold the edges of the plates 1.
- the saddles have downwardly extending flanges I 0 on both sides of the bar 6, and the flanges are formed to afford additional resistance to loading, that is to say, they relieve the bars 6 from all or a portion of the load.
- the flanges I 0 are provided with lugs II projecting laterally therefrom and oppositely disposed.
- a plurality of yokes I2 are provided with lugs I3 similar to the lugs II and are adapted to embrace the bar 6 so that the lugs I I and I3 are contiguous.
- Bolts I 4 are adapted to connect the lugs so that the saddles and yokes areV held in assembled relation on the bars 6.
- the saddles not only aiford a rm support for the screen plates, but also materially strengthen the structure, prevent warping or buckling, and ensure the life of the screen beyond a period which would be practicable Where the entire load is carried by the bars 6.
- the improved supports may be used advantageously in initial construction, thus ensuring long life of the screens. They may be utilized also for replacement where the bars 6 have deteriorated in use, since the saddles afford a sufficient support for the screens and will hold them in proper alignment even though the bars6 may not be in sufficiently good condition to otherwise support the screen plates.
- the structure as described is simple, effective, and relatively inexpensive. It affords numerous advantages not heretofore available in apparatus intended for the purpose described.
- a screen plate support comprising a bar, a saddle adapted to hold the edges of the screens extending lengthwise of the bar and engaging the upper edge thereof, spaced yokes engaging the lower edge of the bar and means for securing the yokes to the saddle.
- a screen plate support comprising a bar, a saddle adapted to hold the edges of the screens extending lengthwise of the bar and engaging the upper edge thereof, spaced yokes engagingA the lower edge of the bar and means for securing the yokes to the saddle, including contiguous lugs on the saddle and yokes and fastening means engaging the lugs.
- a screen plate support comprising a bar, a saddle adapted to hold the edges of the screens extending lengthwise of the bar and engaging the upper edge thereof, spaced yokes engaging the lower edge of the bar and means for securing the yokes to the saddle, including contiguous lugs on the saddle and yokes and bolts engaging the lugs.
- a screen plate support comprising an elongated saddle adapted to hold the edges of the screen, spaced yokes and means for securing the spaced yokes to the saddle.
- a screen plate support comprising an elon'- gated saddle adapted to hold the edges of the screen, spaced yokes and means for securing the spaced yokes to the saddle, including contiguous lugs on the saddle and yokes and fastening 5 means engaging the lugs.
- a screen plate support comprising an elongated saddle adapted to hold the edges of the screen, spaced yokes and means for securing the spaced yokes to the saddle, including contiguous lugs on the saddle and yokes and bolts engaging the lugs.
Description
June 4, 1935. G. cLAUsEN 2,003,923
\ SCREEN PLATE SUPPORT Filed Nov. 1. 1934 ATTORNEY UNITED STATES PATENT OFFICE SCREEN PLATE SUPPORT George Clausen,
Longview, Wash.
Application November 1, 1934, Serial No.750,975
6 Claims.
This invention relates to screen supports or screens employed in paper pulp mills and the like, and particularly to an improved support which facilitates the assembling and prolongs the life of the screens.
The screens employed in handling paper pulp are large foraminous plates which aresupported in the vat by bars, usually of hard wood. Heretofore, the edges of the screen plates have been secured to the bars by metal strips fastened by bolts or screws. The structure, which is subjected to the action of the liquid passing the screens, has a relatively short life, and repairsV and replacements for maintenance materially increase the cost of operation.
It is the object` of the present invention to afford a stronger and more sturdy structure which is readily assembled and prolongs the life of the plant whether originally installed or used as a replacement for the devices heretofore in use.
Other objects and advantages of the invention will be apparent as it is better undersood by reference to the following specication and accompanying drawing, in which Fig. 1 is a side elevation of the improved screen support; and
Fig. 2 is a section on the line 2-2 of Fig. 1.
Referring to the drawing, the side walls 5 indicate a tank or vat in which the screen is supported. A plurality of bars 6 of hard wood or other suitable material extend between the walls 5 at spaced intervals. 'I'he number of such bars will depend upon the area of the screen, which consists of a plurality of formaminous plates I of bronze, brass, or other suitable metal adapted to withstand the corrosive action of the liquid which passes the screen.
Mounted upon each of the bars 6 is a saddle 8 of any suitable corrosion resisting metal, which is co-extensive in length with the bar 6 and is provided with recesses 9 which are adapted to receive and hold the edges of the plates 1. The saddles have downwardly extending flanges I 0 on both sides of the bar 6, and the flanges are formed to afford additional resistance to loading, that is to say, they relieve the bars 6 from all or a portion of the load. At intervals, the flanges I 0 are provided with lugs II projecting laterally therefrom and oppositely disposed.
A plurality of yokes I2 are provided with lugs I3 similar to the lugs II and are adapted to embrace the bar 6 so that the lugs I I and I3 are contiguous. Bolts I 4 are adapted to connect the lugs so that the saddles and yokes areV held in assembled relation on the bars 6.
The ease of assembling the structure is immediately apparent, and it is equally evident that the saddles not only aiford a rm support for the screen plates, but also materially strengthen the structure, prevent warping or buckling, and ensure the life of the screen beyond a period which would be practicable Where the entire load is carried by the bars 6. The improved supports may be used advantageously in initial construction, thus ensuring long life of the screens. They may be utilized also for replacement where the bars 6 have deteriorated in use, since the saddles afford a sufficient support for the screens and will hold them in proper alignment even though the bars6 may not be in sufficiently good condition to otherwise support the screen plates.
The structure as described is simple, effective, and relatively inexpensive. It affords numerous advantages not heretofore available in apparatus intended for the purpose described.
Various changes may be made in the details of construction and arrangement of the parts, without departing from the invention orsacricing any of the advantages thereof.
I claim: Y
1. A screen plate support comprising a bar, a saddle adapted to hold the edges of the screens extending lengthwise of the bar and engaging the upper edge thereof, spaced yokes engaging the lower edge of the bar and means for securing the yokes to the saddle.
2. A screen plate support comprising a bar, a saddle adapted to hold the edges of the screens extending lengthwise of the bar and engaging the upper edge thereof, spaced yokes engagingA the lower edge of the bar and means for securing the yokes to the saddle, including contiguous lugs on the saddle and yokes and fastening means engaging the lugs.
3. A screen plate support comprising a bar, a saddle adapted to hold the edges of the screens extending lengthwise of the bar and engaging the upper edge thereof, spaced yokes engaging the lower edge of the bar and means for securing the yokes to the saddle, including contiguous lugs on the saddle and yokes and bolts engaging the lugs.
4. A screen plate support comprising an elongated saddle adapted to hold the edges of the screen, spaced yokes and means for securing the spaced yokes to the saddle.
5. A screen plate support comprising an elon'- gated saddle adapted to hold the edges of the screen, spaced yokes and means for securing the spaced yokes to the saddle, including contiguous lugs on the saddle and yokes and fastening 5 means engaging the lugs. Y
6. A screen plate support comprising an elongated saddle adapted to hold the edges of the screen, spaced yokes and means for securing the spaced yokes to the saddle, including contiguous lugs on the saddle and yokes and bolts engaging the lugs.
GEORGE CLAUSEN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US750975A US2003923A (en) | 1934-11-01 | 1934-11-01 | Screen plate support |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US750975A US2003923A (en) | 1934-11-01 | 1934-11-01 | Screen plate support |
Publications (1)
Publication Number | Publication Date |
---|---|
US2003923A true US2003923A (en) | 1935-06-04 |
Family
ID=25019926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US750975A Expired - Lifetime US2003923A (en) | 1934-11-01 | 1934-11-01 | Screen plate support |
Country Status (1)
Country | Link |
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US (1) | US2003923A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2103813A1 (en) * | 1970-02-06 | 1971-08-26 | Zakllad Badan i Doswiadczen Techno logii Budowy Maszyn, Mikollow (Polen) | Sieve box for vibrating sieves |
US3944484A (en) * | 1970-02-06 | 1976-03-16 | Centralny Osrodek Projektowo-Technologiczny Przemyslu Maszyn Gorniczych "ORTEM" | Structural supports for heavy duty riddle assembly |
US4283278A (en) * | 1978-03-23 | 1981-08-11 | N. Greening Limited | Screens |
-
1934
- 1934-11-01 US US750975A patent/US2003923A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2103813A1 (en) * | 1970-02-06 | 1971-08-26 | Zakllad Badan i Doswiadczen Techno logii Budowy Maszyn, Mikollow (Polen) | Sieve box for vibrating sieves |
US3944484A (en) * | 1970-02-06 | 1976-03-16 | Centralny Osrodek Projektowo-Technologiczny Przemyslu Maszyn Gorniczych "ORTEM" | Structural supports for heavy duty riddle assembly |
US4283278A (en) * | 1978-03-23 | 1981-08-11 | N. Greening Limited | Screens |
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