US500302A - Slate-picker - Google Patents

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US500302A
US500302A US500302DA US500302A US 500302 A US500302 A US 500302A US 500302D A US500302D A US 500302DA US 500302 A US500302 A US 500302A
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Prior art keywords
slate
picker
segments
ends
segment
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4645Screening surfaces built up of modular elements

Description

UNITED STATES PATENT OFFICE.

FREDERICK STOECKEL AND SAMUEL FAHRNGER, OF MAHANOY CITY, PENNSYLVANIA.

SLATE-PICKER.

SPECIFICATION forming part of Letters Patent No. 500,302, dated June 27, 1893.

Application filed February 7, 1893- Serial No. 461.371. (No model.)

T0 all whom it may ooncern:

Be it known that we, FREDERICK STOECKEL and SAMUEL FAHRINGER, citizens of the United States, residing at Mahanoy City, in the county of Schuylkill and State of Pennsylvania, have invented certain new and useful Improvements in Slate-Pickers; and we do hereby declare the following to be a full, clear, and exact description of the inven tion, such as will enable others' skilled in the artto which it appertains to make and use the same.

This invention relates to an improvement in slate picker segments and it consists in the construction and arrangement of parts hereinafter described and claimed.

The aim and purpose of the invention is the provision of an improved segment for cylindrical pickers, used to separate flat slate from coal and one which Will be cheaply manufactured and strong and durable. These objects are attained by'the construction illustrated in the accompanying drawings wherein like letters of reference indicate corresponding parts in the several views and in which- Figure 1 is an end view of a cylinder with the segments applied. Fig. 2 is a side view of the same. Fig. 3 is a longitudinal section of a segment, and Fig. 4 is a detail view of a section of segment.

In the drawings A represents a cylindrical frame and B the segments. These segments are formed of either wrought iron, steel or other suitable metal each being formed in one integral part and either rolled or pressed into shape. having elongated openings c permitting the securing bolts D to pass therethrough and allowing the same to draw the segments close onto the cylinder. Between the ends O which have the proper curvature, is the corrugated web E formed integral with the ends, the corrugations being V shape and extending ent-irely across the segment transversely. The outer apex of the V-shaped corrugations are cut away from points adjacent the ends of the corrugations, thereby forming elongated They consist of the fiat ends C.

openings F all of uniform size. The nncut portions of the web form side bars for uniting the several corrugations and to give the requisite rigidity to the segment. The web is curved like unto the ends, so that the several.

assembled segments will constitute the covering of the cylinder. By forming the segments as described and in one integral piece, they act as trusses or braces against the load 'to be carried and in forming theV shaped corrugations we round off the inner apexes of the same so that the coal Will readily slide thereover.

The operation of the device is well understood. The flat slate passes into the V-shaped groove and falls out through the slot or openings therein while the coal passes through the cylinder and is discharged therefrom at the end. It is to be understood that the size of vsegment and slots therein may be varied When required.

We are aware that many minor changes in the construction and arrangement of the parts can be made and substituted for those herein shown and described without in the least departing from the nature and principle of the invention.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is-- A slate picker segment consisting of a single integral metallic plate having flat curved ends formed with elongated openings, a corrugated web between the ends having V- shaped corrugations, formed with their outer apexes cut away from points near the sides 'and their inner apexes rounded, substantially FREDERICK STOECKEL. SAML. FAHRINGER.

Witnesses:

M. L. SMITH, O. T. KLEINDIENST.

US500302A Slate-picker Expired - Lifetime US500302A (en)

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Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5417858A (en) * 1993-01-13 1995-05-23 Derrick Manufacturing Corporation Screen assembly for vibrating screening machine
US5417793A (en) * 1993-01-13 1995-05-23 Derrick Manufacturing Corporation Undulating screen for vibratory screening machine and method of fabrication thereof
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
US6156083A (en) * 1998-02-05 2000-12-05 Tuboscope Coal reclamation systems
US6186337B1 (en) 1998-10-30 2001-02-13 Tuboscope I/P, Inc. Dual screen element having upper scalping screen adhered to crests of corrugated lower screen
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
US20040211707A1 (en) * 2003-04-23 2004-10-28 Lipa Anthony J. Undulating molded plastic vibratory screen
US20040251175A1 (en) * 1998-10-30 2004-12-16 Adams Thomas C. Apparatuses and methods for making glued screen assemblies
US20090094160A1 (en) * 2007-10-09 2009-04-09 Webster Kurt F Portable digital content device and methods for use therewith

Cited By (52)

* 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
US5417793A (en) * 1993-01-13 1995-05-23 Derrick Manufacturing Corporation Undulating screen for vibratory screening machine and method of fabrication thereof
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
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
US6564947B2 (en) 1993-01-13 2003-05-20 Derrick Manufacturing Corporation Method of screening material utilizing a plurality of undulating screen assemblies
US6530483B2 (en) 1993-04-30 2003-03-11 Varco I/P, Inc. Unibody structure for screen assembly
US6722504B2 (en) 1993-04-30 2004-04-20 Varco I/P, Inc. Vibratory separators and screens
US6032806A (en) * 1993-04-30 2000-03-07 Tuboscope I/P, Inc. Screen apparatus for vibratory separator
US6629610B1 (en) 1993-04-30 2003-10-07 Tuboscope I/P, Inc. Screen with ramps for vibratory separator system
US6152307A (en) * 1993-04-30 2000-11-28 Tuboscope I/P, Inc. Vibratory separator screens
US6607080B2 (en) 1993-04-30 2003-08-19 Varco I/P, Inc. Screen assembly for vibratory separators
US6565698B1 (en) * 1993-04-30 2003-05-20 Varco I/P, Inc. Method for making 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
US5971159A (en) * 1993-04-30 1999-10-26 Tuboscope I/P, Inc. Screen assembly for a vibratory separator
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
US6325216B1 (en) 1993-04-30 2001-12-04 Tuboscope I/P, Inc. Screen apparatus for vibratory separator
US6892888B2 (en) 1993-04-30 2005-05-17 Varco I/P, Inc. Screen with unibody structure
US20050236305A1 (en) * 1993-04-30 2005-10-27 Schulte David L Jr Vibratory separators and screens for them
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
US6371302B1 (en) 1993-04-30 2002-04-16 Tuboscope I/P, Inc. Vibratory separator screens
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
US6156083A (en) * 1998-02-05 2000-12-05 Tuboscope Coal reclamation systems
US6669985B2 (en) 1998-10-30 2003-12-30 Varco I/P, Inc. Methods for making glued shale shaker screens
US6932883B2 (en) 1998-10-30 2005-08-23 Varco I/P, Inc. Screens for vibratory separators
US6186337B1 (en) 1998-10-30 2001-02-13 Tuboscope I/P, Inc. Dual screen element having upper scalping screen adhered to crests of corrugated lower screen
US20030010437A1 (en) * 1998-10-30 2003-01-16 Adams Thomas C. Screens for vibratory separators
US6736270B2 (en) 1998-10-30 2004-05-18 Varco I/P, Inc. Glued screens for shale shakers
US20030042179A1 (en) * 1998-10-30 2003-03-06 Adams Thomas C. Vibratory separator screens
US20040251175A1 (en) * 1998-10-30 2004-12-16 Adams Thomas C. Apparatuses and methods for making glued screen assemblies
USD425531S (en) 1999-03-29 2000-05-23 Tuboscope I/P, Inc. Screen
US7520391B2 (en) 1999-12-04 2009-04-21 Varco I/P, Inc. Screen assembly for vibratory separator
US20080029442A1 (en) * 1999-12-04 2008-02-07 Schulte David L Jr Screen assembly for vibratory separator
US20040007508A1 (en) * 1999-12-04 2004-01-15 Schulte David L. Screen assembly for vibratory separator
US20040099578A1 (en) * 2000-08-05 2004-05-27 Winkler Joseph C. Screen assembly for vibratory separators
US7264125B2 (en) * 2003-04-23 2007-09-04 Derrick Corporation Undulating molded plastic vibratory screen
US20040211707A1 (en) * 2003-04-23 2004-10-28 Lipa Anthony J. Undulating molded plastic vibratory screen
US20090094160A1 (en) * 2007-10-09 2009-04-09 Webster Kurt F Portable digital content device and methods for use therewith

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