US560858A - missroon - Google Patents

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Publication number
US560858A
US560858A US560858DA US560858A US 560858 A US560858 A US 560858A US 560858D A US560858D A US 560858DA US 560858 A US560858 A US 560858A
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Prior art keywords
edge
web
segment
picker
stay
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Expired - Lifetime
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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
    • B07B1/46—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
    • B07B1/4645—Screening surfaces built up of modular elements

Definitions

  • each of such corrugations having elongated openings a formed therein of uniform size, each of such corrugations having, as herein shown, two of the openings a separated by a bridgepiece ta which strengthens the web and also assists in the operation of the picker.
  • the web portion of each segment is curved similarly to the ends a, several of such segments forming the covering of the cylinder.
  • segments are eachin one integral piece and shaped as described they act as braces or trusses for the load carried in the interior of the picker, the edges of ments abutting, as shown in Fig. 1. WVhile the segments in themselves possess considerable rigidity they are sub ected to very hard usage, and placed, as they are, upon the outside of the spiders A, the butt-joints extending from one to the other spider are totally unprotected and are the first parts of the picker to succumb to wear.
  • the stay-strips act as tumblers to lift the coal from the groovesin the segments and cause itto one end of the picker oughly opening up the load to pick the slate therefrom which passes out through the elongated openings a
  • an additional strip e is secured to the inner face of the stay-strip d at the edge secured to the segment-web 5 to still further increase the er. While the free edge of To aZl whom it may concern:
  • This invention has for its object the production of a strong, durable, and effective segment for cylindrical slate pickers employed in separating flat slate and the like from coal, whereby the strength and rigidity of such pickers and their efficiency in operation are greatly increased.
  • my invention comprises a slate picker segment consisting of a metallic plate having flat ends and a transversely-corrugated intermediate web integral therewith, elongated openings being formed in the outer apexes, and a correspondingly-corrugated rigid metallic stay-strip secured to the inner face of and at one edge of the web between the flat ends of the segment and projecting beyond said edge, substantially as will be described.
  • Figure 1 is an end view, partly broken out, of a cylinder with segments embodying my invention applied thereto.
  • Fig. 2 is a side view of the screen-rings with only one of the segments inplace.
  • Fig. 3 is a perspective view, on a larger scale, of a little more than half of one of the stay-strips detached; and
  • Fig. 4. is an enlarged sectional detail of a modificationto be described.
  • Fig. 5 is acentral vertical section'of Fig. 2 on an enlarged scale.
  • the segments A are secured to suitable cylindrical rings or rims A on spiders A forming the supporting-frame of the picker.
  • the segments A of wrought-iron, steel, or other pass along from consist of ends a of proper curvature to fit the spiders A, to which they are secured by suitable bolts 1), extended through preferably As shown clearly in Fig. 2, the ends a are connected by an intermediate transversely-corrugated web 0. integral with said ends, the outer apexes action of the stay-strip as a tumbl it is not necessary to attach As the the adjacent segto the other, more thori segment, and projectingwith an imperforate extension beyond said edge to form a jointprotector, substantially as described.
  • cylindrical slate-picker composed of similar segments corrugated transversel in termediate their ends and provided with a plurality of transverse openings, combined with internal stay-strips made of metal corrugated to fit snugly against the inner side of said segments, one sta -strip being bolted to each segment at one edge thereof and arranged to progect loosely across the joint and beneath the edge of the the free end of said one segment to "the stay-strip secured to the adjacent edge of th edge and through a hole (Z made for 1.
  • a slate-picker segment consisting of a versely-corrugated intermediate Web integral therewith, elongated openings being formed a correspondinglycorrugated metallic stay-strip secured to the edge of the Web beis prevented from springing open at its oints and a plurality of ridges is provided to intercept the revolving mass and tumble it in its progress, substantially as described.

Description

' (No Model) 2 Sh-eetsSheet 1.
J. D. MISSROON. SLATE PIUKER No. 560,858. Patented May 26, 1896;;
2 Sheets-Sheet 2.
J. n. MISSROON.
. SLATE PIGKER.
l No. 560,858. Patented May 26, 1896.
Zficeas e6.
. elongated openings a in the ends.
suitable metal rolled or pressed into shape,
NirEn ST TES MASSACHUSETTS, ASSIGNOR TO THE OF SAME PLACE.
JOHN I). MISSROO N, OF CLINTON,
CLINTON IRE CLOTH COMPANY,
SLATE-PICKER.
LettersPatent No. 560,858, dated May 26, 1896.
1894.. Serialllo.5152,4101. cu Infidel.)
SPECIFICATION formingpart of Application filed December 20,
of the corrugations having elongated openings a formed therein of uniform size, each of such corrugations having, as herein shown, two of the openings a separated by a bridgepiece ta which strengthens the web and also assists in the operation of the picker. The web portion of each segment is curved similarly to the ends a, several of such segments forming the covering of the cylinder.
segments are eachin one integral piece and shaped as described they act as braces or trusses for the load carried in the interior of the picker, the edges of ments abutting, as shown in Fig. 1. WVhile the segments in themselves possess considerable rigidity they are sub ected to very hard usage, and placed, as they are, upon the outside of the spiders A, the butt-joints extending from one to the other spider are totally unprotected and are the first parts of the picker to succumb to wear.
In order to increase the general rigidity of the picker and also to protect the joints between adjacent segments, I have secured to the inner face of each segment and at one edge a stay-strip d, of steel, corrugated to conform to the shape of the intermediate web a the said strip extending to the flat ends a and projecting beyond the edge of the web, Fig. 2. to the web of the segment by rivets d other permanent fastenings, and the adjacent edge of the web of the next segment when abutted will be covered and protected by the projecting portion of the stay-strip d, as shown in Fig. 1. The stay-strip being on the inside of the joint thus prevents direct contact of the load thereupon and greatly increases the rigidity, streng h, and life of the picker. Furthermore, the stay-strips act as tumblers to lift the coal from the groovesin the segments and cause itto one end of the picker oughly opening up the load to pick the slate therefrom which passes out through the elongated openings a In the modification shown in Fig. i an additional strip e is secured to the inner face of the stay-strip d at the edge secured to the segment-web 5 to still further increase the er. While the free edge of To aZl whom it may concern:
Beit known that 1, JOHN D. MISSROON, of Clinton, county of IVorcester, State of-Massachusetts, have invented an Improvementin Slate-Pickers, of which the following description, in connection with the accompanying drawings, is a specification, like letters and figures on the drawings representing like parts.
This invention has for its object the production of a strong, durable, and effective segment for cylindrical slate pickers employed in separating flat slate and the like from coal, whereby the strength and rigidity of such pickers and their efficiency in operation are greatly increased. In accordance therewith my invention comprises a slate picker segment consisting of a metallic plate having flat ends and a transversely-corrugated intermediate web integral therewith, elongated openings being formed in the outer apexes, and a correspondingly-corrugated rigid metallic stay-strip secured to the inner face of and at one edge of the web between the flat ends of the segment and projecting beyond said edge, substantially as will be described.
Other features of my invention will be hereinafter described, and pointed out in the claims.
Figure 1 is an end view, partly broken out, of a cylinder with segments embodying my invention applied thereto. Fig. 2 is a side view of the screen-rings with only one of the segments inplace. Fig. 3 is a perspective view, on a larger scale, of a little more than half of one of the stay-strips detached; and Fig. 4. is an enlarged sectional detail of a modificationto be described. Fig. 5 is acentral vertical section'of Fig. 2 on an enlarged scale.
The segments A are secured to suitable cylindrical rings or rims A on spiders A forming the supporting-frame of the picker. The segments A, of wrought-iron, steel, or other pass along from consist of ends a of proper curvature to fit the spiders A, to which they are secured by suitable bolts 1), extended through preferably As shown clearly in Fig. 2, the ends a are connected by an intermediate transversely-corrugated web 0. integral with said ends, the outer apexes action of the stay-strip as a tumbl it is not necessary to attach As the the adjacent segto the other, more thori segment, and projectingwith an imperforate extension beyond said edge to form a jointprotector, substantially as described.
cylindrical slate-picker, composed of similar segments corrugated transversel in termediate their ends and provided with a plurality of transverse openings, combined with internal stay-strips made of metal corrugated to fit snugly against the inner side of said segments, one sta -strip being bolted to each segment at one edge thereof and arranged to progect loosely across the joint and beneath the edge of the the free end of said one segment to "the stay-strip secured to the adjacent edge of th edge and through a hole (Z made for 1. A slate-picker segment consisting of a versely-corrugated intermediate Web integral therewith, elongated openings being formed a correspondinglycorrugated metallic stay-strip secured to the edge of the Web beis prevented from springing open at its oints and a plurality of ridges is provided to intercept the revolving mass and tumble it in its progress, substantially as described.
In testimony Whereof I have signed my name to this specification in the presence of two subscribing witnesses.
JOHN D. MISSROON.
beyond said edge, said projecting edge being as described.
made her to form inner face of and at the Web between the ends-of the W'itnesses J OHN O. AUGUSTA a tumbler, secured to the EDWARDs, one edge of E. DEAN.
US560858D missroon Expired - Lifetime US560858A (en)

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Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5417793A (en) * 1993-01-13 1995-05-23 Derrick Manufacturing Corporation Undulating screen for vibratory screening machine and method of fabrication thereof
US5417858A (en) * 1993-01-13 1995-05-23 Derrick Manufacturing Corporation Screen assembly for vibrating screening machine
US5598930A (en) * 1995-07-20 1997-02-04 Advanced Wirecloth, Inc. Shale shaker screen
US5921399A (en) * 1996-06-07 1999-07-13 Derrick Corporation Gumbo separator
US5958236A (en) * 1993-01-13 1999-09-28 Derrick Manufacturing Corporation Undulating screen for vibratory screening machine and method of fabrication thereof
US5971159A (en) * 1993-04-30 1999-10-26 Tuboscope I/P, Inc. Screen assembly for a vibratory separator
US6000556A (en) * 1993-01-13 1999-12-14 Derrick Manufacturing Corporation Screen assembly for vibratory screening machine
USD425531S (en) * 1999-03-29 2000-05-23 Tuboscope I/P, Inc. Screen
US6152307A (en) * 1993-04-30 2000-11-28 Tuboscope I/P, Inc. Vibratory separator screens
US6267247B1 (en) 1993-04-30 2001-07-31 Tuboscope I/P, Inc. Vibratory separator screen
US6269953B1 (en) 1993-04-30 2001-08-07 Tuboscope I/P, Inc. Vibratory separator screen assemblies
US6283302B1 (en) 1993-08-12 2001-09-04 Tuboscope I/P, Inc. Unibody screen structure
US6290068B1 (en) 1993-04-30 2001-09-18 Tuboscope I/P, Inc. Shaker screens and methods of use
US6325216B1 (en) 1993-04-30 2001-12-04 Tuboscope I/P, Inc. Screen apparatus for vibratory separator
US6371302B1 (en) 1993-04-30 2002-04-16 Tuboscope I/P, Inc. Vibratory separator screens
US6401934B1 (en) 1993-04-30 2002-06-11 Tuboscope I/P, Inc. Ramped screen & vibratory separator system
US6443310B1 (en) 1993-04-30 2002-09-03 Varco I/P, Inc. Seal screen structure
US6450345B1 (en) 1993-04-30 2002-09-17 Varco I/P, Inc. Glue pattern screens and methods of production
US6454099B1 (en) 1993-04-30 2002-09-24 Varco I/P, Inc Vibrator separator screens
US20030010437A1 (en) * 1998-10-30 2003-01-16 Adams Thomas C. Screens for vibratory separators
US20030042179A1 (en) * 1998-10-30 2003-03-06 Adams Thomas C. Vibratory separator screens
US6565698B1 (en) * 1993-04-30 2003-05-20 Varco I/P, Inc. Method for making vibratory separator screens
US6607080B2 (en) 1993-04-30 2003-08-19 Varco I/P, Inc. Screen assembly for vibratory separators
US6629610B1 (en) 1993-04-30 2003-10-07 Tuboscope I/P, Inc. Screen with ramps for vibratory separator system
US6669985B2 (en) 1998-10-30 2003-12-30 Varco I/P, Inc. Methods for making glued shale shaker screens
US20040007508A1 (en) * 1999-12-04 2004-01-15 Schulte David L. Screen assembly for vibratory separator
US6722504B2 (en) 1993-04-30 2004-04-20 Varco I/P, Inc. Vibratory separators and screens
US6736270B2 (en) 1998-10-30 2004-05-18 Varco I/P, Inc. Glued screens for shale shakers
US20040251175A1 (en) * 1998-10-30 2004-12-16 Adams Thomas C. Apparatuses and methods for making glued screen assemblies

Cited By (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6000556A (en) * 1993-01-13 1999-12-14 Derrick Manufacturing Corporation Screen assembly for vibratory screening machine
US5417859A (en) * 1993-01-13 1995-05-23 Derrick Manufacturing Corporation Undulating screen for vibratory screening machine and method of fabrication thereof
US5417858A (en) * 1993-01-13 1995-05-23 Derrick Manufacturing Corporation Screen assembly for vibrating screening machine
US6564947B2 (en) 1993-01-13 2003-05-20 Derrick Manufacturing Corporation Method of screening material utilizing a plurality of undulating screen assemblies
US5720881A (en) * 1993-01-13 1998-02-24 Derrick Manufacturing Corporation Screen assembly for vibrating screening machine
US5783077A (en) * 1993-01-13 1998-07-21 Derrick Manufacturing Corporation Undulating screen for vibratory screening machine
US5868929A (en) * 1993-01-13 1999-02-09 Derrick Manufacturing Corporation Screen assembly for vibrating screening machine
US5876552A (en) * 1993-01-13 1999-03-02 Derrick Manufacturing Corporation Method of fabricating screen for vibratory screening machine
US6340089B1 (en) 1993-01-13 2002-01-22 Derrick Manufacturing Corporation Method of fabricating undulating screen for vibratory screening machine
US5944993A (en) * 1993-01-13 1999-08-31 Derrick Manufacturing Corporation Screen assembly for vibrating screening machine
US5958236A (en) * 1993-01-13 1999-09-28 Derrick Manufacturing Corporation Undulating screen for vibratory screening machine and method of fabrication thereof
US5417793A (en) * 1993-01-13 1995-05-23 Derrick Manufacturing Corporation Undulating screen for vibratory screening machine and method of fabrication thereof
US6325216B1 (en) 1993-04-30 2001-12-04 Tuboscope I/P, Inc. Screen apparatus for vibratory separator
US6454099B1 (en) 1993-04-30 2002-09-24 Varco I/P, Inc Vibrator separator screens
US6032806A (en) * 1993-04-30 2000-03-07 Tuboscope I/P, Inc. Screen apparatus for vibratory separator
US20050236305A1 (en) * 1993-04-30 2005-10-27 Schulte David L Jr Vibratory separators and screens for them
US6152307A (en) * 1993-04-30 2000-11-28 Tuboscope I/P, Inc. Vibratory separator screens
US6267247B1 (en) 1993-04-30 2001-07-31 Tuboscope I/P, Inc. Vibratory separator screen
US6269953B1 (en) 1993-04-30 2001-08-07 Tuboscope I/P, Inc. Vibratory separator screen assemblies
US6629610B1 (en) 1993-04-30 2003-10-07 Tuboscope I/P, Inc. Screen with ramps for vibratory separator system
US6290068B1 (en) 1993-04-30 2001-09-18 Tuboscope I/P, Inc. Shaker screens and methods of use
US6302276B1 (en) 1993-04-30 2001-10-16 Tuboscope I/P, Inc. Screen support strip for use in vibratory screening apparatus
US5971159A (en) * 1993-04-30 1999-10-26 Tuboscope I/P, Inc. Screen assembly for a vibratory separator
US6607080B2 (en) 1993-04-30 2003-08-19 Varco I/P, Inc. Screen assembly for vibratory separators
US6371302B1 (en) 1993-04-30 2002-04-16 Tuboscope I/P, Inc. Vibratory separator screens
US6401934B1 (en) 1993-04-30 2002-06-11 Tuboscope I/P, Inc. Ramped screen & vibratory separator system
US6443310B1 (en) 1993-04-30 2002-09-03 Varco I/P, Inc. Seal screen structure
US6450345B1 (en) 1993-04-30 2002-09-17 Varco I/P, Inc. Glue pattern screens and methods of production
US6722504B2 (en) 1993-04-30 2004-04-20 Varco I/P, Inc. Vibratory separators and screens
US6565698B1 (en) * 1993-04-30 2003-05-20 Varco I/P, Inc. Method for making vibratory separator screens
US6892888B2 (en) 1993-04-30 2005-05-17 Varco I/P, Inc. Screen with unibody structure
US6530483B2 (en) 1993-04-30 2003-03-11 Varco I/P, Inc. Unibody structure for screen assembly
US6283302B1 (en) 1993-08-12 2001-09-04 Tuboscope I/P, Inc. Unibody screen structure
US5598930A (en) * 1995-07-20 1997-02-04 Advanced Wirecloth, Inc. Shale shaker screen
US5988397A (en) * 1996-02-12 1999-11-23 Tuboscope I/P, Inc. Screen for vibratory separator
US5921399A (en) * 1996-06-07 1999-07-13 Derrick Corporation Gumbo separator
US20030010437A1 (en) * 1998-10-30 2003-01-16 Adams Thomas C. Screens for vibratory separators
US6669985B2 (en) 1998-10-30 2003-12-30 Varco I/P, Inc. Methods for making glued shale shaker screens
US6736270B2 (en) 1998-10-30 2004-05-18 Varco I/P, Inc. Glued screens for shale shakers
US20040251175A1 (en) * 1998-10-30 2004-12-16 Adams Thomas C. Apparatuses and methods for making glued screen assemblies
US20030042179A1 (en) * 1998-10-30 2003-03-06 Adams Thomas C. Vibratory separator screens
US6932883B2 (en) 1998-10-30 2005-08-23 Varco I/P, Inc. Screens for vibratory separators
USD425531S (en) * 1999-03-29 2000-05-23 Tuboscope I/P, Inc. Screen
US20040007508A1 (en) * 1999-12-04 2004-01-15 Schulte David L. Screen assembly for vibratory separator
US20080029442A1 (en) * 1999-12-04 2008-02-07 Schulte David L Jr Screen assembly for vibratory separator
US7520391B2 (en) 1999-12-04 2009-04-21 Varco I/P, Inc. Screen assembly for vibratory separator
US20040099578A1 (en) * 2000-08-05 2004-05-27 Winkler Joseph C. Screen assembly for vibratory separators

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