GB1428541A - Roller hearth furnace - Google Patents

Roller hearth furnace

Info

Publication number
GB1428541A
GB1428541A GB1086873A GB1086873A GB1428541A GB 1428541 A GB1428541 A GB 1428541A GB 1086873 A GB1086873 A GB 1086873A GB 1086873 A GB1086873 A GB 1086873A GB 1428541 A GB1428541 A GB 1428541A
Authority
GB
United Kingdom
Prior art keywords
belts
rollers
blocks
brackets
furnace
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
Application number
GB1086873A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MCMASTER RH A
Original Assignee
MCMASTER RH A
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MCMASTER RH A filed Critical MCMASTER RH A
Publication of GB1428541A publication Critical patent/GB1428541A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
    • C03B29/04—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way
    • C03B29/06—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way with horizontal displacement of the products
    • C03B29/08—Glass sheets
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
    • C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
    • C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
    • C03B35/163—Drive means, clutches, gearing or drive speed control means
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
    • C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
    • C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
    • C03B35/165—Supports or couplings for roller ends, e.g. trunions, gudgeons
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2225/00—Transporting hot glass sheets during their manufacture
    • C03B2225/02—Means for positioning, aligning or orientating the sheets during their travel, e.g. stops

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Tunnel Furnaces (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)

Abstract

1428541 Rollerway conveyers for furnaces H A MCMASTER and N C NITSCHKE 6 March 1973 [17 April 1972] 10868/73 Heading F4B In a continuous furnace for heat treating glass sheets the conveyer comprises a pair of endless belts 40 supported by a plurality of blocks 34 and driven by a wheel assembly 30, a series of ceramic, e.g. fused quartz, rollers 38 with end portions of smaller diameter supported on the upper run 42 of said belts, and brackets 48 between said rollers thus limiting their forward movement. The rollers 38 may be solid or hollow and the brackets 48 have rails (52, Figs. 5-8) across and above the belts and side legs (54) engaging slots (50) in the blocks 34. Alternative brackets (48<SP>1</SP>, Figs. 7 and 8) have outer side flanges limiting longitudinal movement of the rollers and fingers (56) below the rails (52) engaging the top surface of the blocks 34. The furnace is divided into modules, Fig. 3, each having two blocks 34 supported by shafts 64 and 66 from girders 62. Adjustment of an eye bolt 74 allows very limited arcuate movement of the shaft 64 and consequent movement of the associated block. The ends of the rollers, the belts and the brackets may be lubricated, and the upper run of the belts may be heated before entering the furnace. The drive wheel assembly 30, Fig. 10 comprises large wheels 84 receiving the belts 42 and driven by motors 88 through coupled gear-boxes 94 and pinion gearing 90, 92. At the other end of the furnace the belts pass over idler wheels 86, Fig. 11, mounted on a frame 98. Each wheel 86 is supported in a housing (108, Fig. 12) mounted on a pair of rods 100 and tensioned by a cable 104 attached to a pneumatic motor 102.
GB1086873A 1972-04-17 1973-03-06 Roller hearth furnace Expired GB1428541A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00244542A US3806312A (en) 1972-04-17 1972-04-17 Roller hearth furnace

Publications (1)

Publication Number Publication Date
GB1428541A true GB1428541A (en) 1976-03-17

Family

ID=22923191

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1086873A Expired GB1428541A (en) 1972-04-17 1973-03-06 Roller hearth furnace

Country Status (7)

Country Link
US (1) US3806312A (en)
JP (1) JPS5324964B2 (en)
BE (1) BE798282A (en)
CA (1) CA996749A (en)
FR (1) FR2180830B1 (en)
GB (1) GB1428541A (en)
NL (1) NL166247C (en)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3934970A (en) * 1975-02-19 1976-01-27 Mcmaster Harold Glass tempering system
US3947242A (en) * 1975-02-19 1976-03-30 Mcmaster Harold Roller hearth furnace for glass sheets
US3994711A (en) * 1975-09-15 1976-11-30 Mcmaster Harold Glass tempering system including oscillating roller furnace
US4013403A (en) * 1975-12-08 1977-03-22 Pullman Incorporated Support means for a roller hearth in a kiln
US4140486A (en) * 1977-06-06 1979-02-20 Nitschke Norman Carl Spring end cap for conveyor rolls
DE2939143C3 (en) * 1979-09-27 1982-03-04 Standard Elektrik Lorenz Ag, 7000 Stuttgart Support for placing screen tubs during the production of color picture tubes
US4360374A (en) * 1980-11-24 1982-11-23 Nitschke John Stephen Roll operator for glass sheet conveyor of bending system
US4404011A (en) * 1981-01-06 1983-09-13 Mcmaster Ronald A Conveyor roll end cap
US4505671A (en) * 1981-02-17 1985-03-19 Glasstech, Inc. Glass sheet roller conveyor furnace including gas jet pump heating
US4341546A (en) * 1981-02-25 1982-07-27 Nitschke Norman Carl Roll drive mechanism for glass sheet processing equipment
DE3113409C1 (en) * 1981-04-03 1982-11-04 Horst 5630 Remscheid Frielingsdorf System for the treatment of warm and / or to be heated glass panes
US4421482A (en) * 1982-01-07 1983-12-20 Mcmaster Ronald A Conveyor roll for conveying heated glass sheets
US4397672A (en) * 1982-02-05 1983-08-09 Nitschke John Stephen Glass sheet tempering utilizing high density air quenching
US4501603A (en) * 1983-03-30 1985-02-26 Ppg Industries, Inc. Method and apparatus for shaping glass sheets to complicated shapes
US4512460A (en) * 1983-03-30 1985-04-23 Glasstech, Inc. Glass sheet roller conveyor including antifriction drive chain
FR2597090A1 (en) * 1986-04-09 1987-10-16 Saint Gobain Vitrage IMPROVEMENT IN GLASS SHEET HEATING TECHNIQUES
US5147439A (en) * 1990-05-01 1992-09-15 Glasstech, Inc. Variable pressure gas jet system for lifting and forming glass sheets
US6032491A (en) * 1997-11-20 2000-03-07 Glasstech, Inc. Apparatus for mold changing in heated glass sheet forming station
US6729160B1 (en) 1997-11-20 2004-05-04 Glasstech, Inc. Apparatus and method for forming heated glass sheets
US5917107A (en) * 1997-11-20 1999-06-29 Glasstech, Inc. Quench loader for installing glass sheet quench module set
US5906668A (en) 1997-11-20 1999-05-25 Glasstech, Inc. Mold assembly for forming heated glass sheets
US5925162A (en) * 1997-11-20 1999-07-20 Glasstech, Inc. Mold support assembly for heated glass sheet mold
US5900034A (en) * 1997-11-20 1999-05-04 Glasstech, Inc. Support and actuating mechanism for mold support assembly used for heated glass sheet forming
US6783358B1 (en) 2003-05-28 2004-08-31 Glasstech, Inc. Furnace and method for heating coated glass sheets
US20040237591A1 (en) * 2003-05-28 2004-12-02 Glasstech, Inc. Furnace and method using electric resistance and forced convection for heating glass sheets
US7958750B2 (en) * 2005-10-21 2011-06-14 Glasstech, Inc. Glass sheet forming system
US8074473B2 (en) * 2006-12-01 2011-12-13 Glasstech, Inc. Method for quenching formed glass sheets
US7716949B2 (en) * 2007-04-04 2010-05-18 Glasstech, Inc. Method for positioning glass sheets for forming
WO2011130518A1 (en) 2010-04-14 2011-10-20 Babcock & Wilcox Technical Services Y-12, Llc Heat treatment furnace
US20150218030A1 (en) 2014-02-06 2015-08-06 Glasstech, Inc. Forming station and method for forming a hot glass sheet with transverse curvature
US9452948B2 (en) 2014-02-06 2016-09-27 Glasstech, Inc. Three stage forming station and method for forming a hot glass sheet with transverse curvature
US9745147B2 (en) 2015-11-02 2017-08-29 Glasstech, Inc. Glass sheet forming system
TWI729020B (en) 2015-11-02 2021-06-01 美商玻璃技術股份有限公司 Glass sheet positioning apparatus and method and glass sheet processing system
TWI753864B (en) 2015-11-02 2022-02-01 美商玻璃技術股份有限公司 Mold shuttle positioning system for a glass sheet forming system
US9758421B2 (en) 2015-11-02 2017-09-12 Glasstech, Inc. Glass sheet processing system having cooling of conveyor roller ends
EP3371116B1 (en) 2015-11-02 2020-10-21 Glasstech, Inc. Glass sheet forming system
TWI752922B (en) 2015-11-02 2022-01-21 美商玻璃技術股份有限公司 Vacuum mold shuttle system for a glass sheet forming system
US9809485B2 (en) 2015-11-02 2017-11-07 Glasstech, Inc. Lift device for a glass processing system
US11230487B2 (en) 2019-03-22 2022-01-25 Glasstech, Inc. Glass processing system with variable bending station
US11542189B2 (en) 2020-09-03 2023-01-03 Glasstech, Inc. Articulated mold arrangement for a glass processing system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE567549C (en) * 1930-11-14 1933-01-05 Philipp Rack Device for the uninterrupted conveyance of incandescent material
US2023126A (en) * 1934-06-09 1935-12-03 Frank A Fahrenwald Subdivided roller bottom for sheet normalizing furnaces
GB580294A (en) * 1944-06-27 1946-09-03 John Fallon Improvements in and connected with conveyor mechanism for furnaces and other apparatus
FR1082171A (en) * 1953-08-06 1954-12-27 Advanced device for transporting parts inside a furnace
FR1515395A (en) * 1967-03-14 1968-03-01 Conveyor with free rollers, carriers, controlled by friction by endless chains
US3500693A (en) * 1968-10-11 1970-03-17 Cutler Hammer Inc Reversible roller top conveyor drive

Also Published As

Publication number Publication date
FR2180830B1 (en) 1978-02-10
NL166247C (en) 1981-07-15
CA996749A (en) 1976-09-14
BE798282A (en) 1973-10-16
US3806312A (en) 1974-04-23
FR2180830A1 (en) 1973-11-30
NL166247B (en) 1981-02-16
JPS5324964B2 (en) 1978-07-24
DE2319049A1 (en) 1973-10-31
NL7305349A (en) 1973-10-19
JPS4918110A (en) 1974-02-18
DE2319049B2 (en) 1977-03-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
430B Application (made) for amendment of specification (sect. 30/1949)
430 Proceeding under section 30 patents act 1949
PCNP Patent ceased through non-payment of renewal fee