US3490856A - Gas fired ribbon burner and electrode assembly - Google Patents

Gas fired ribbon burner and electrode assembly Download PDF

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Publication number
US3490856A
US3490856A US713071A US3490856DA US3490856A US 3490856 A US3490856 A US 3490856A US 713071 A US713071 A US 713071A US 3490856D A US3490856D A US 3490856DA US 3490856 A US3490856 A US 3490856A
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United States
Prior art keywords
burner
electrode
assembly
electrode assembly
port means
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Expired - Lifetime
Application number
US713071A
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English (en)
Inventor
Hiram E Temple
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.)
Baker Perkins Inc
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Baker Perkins Inc
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Filing date
Publication date
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q3/00—Igniters using electrically-produced sparks
    • F23Q3/008—Structurally associated with fluid-fuel burners
    • A—HUMAN NECESSITIES
    • A21—BAKING; EDIBLE DOUGHS
    • A21B—BAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
    • A21B1/00—Bakers' ovens
    • A21B1/02—Bakers' ovens characterised by the heating arrangements
    • A21B1/06—Ovens heated by radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/10—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with elongated tubular burner head
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details
    • F23D14/48—Nozzles
    • F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • F23D14/583—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits
    • F23D14/586—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits formed by a set of sheets, strips, ribbons or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2207/00—Ignition devices associated with burner

Definitions

  • GAS FIRED RIBBON BURNER AND ELECTRODE ASSEMBLY Filed March 14, 1968 YINVENTOR.
  • GAS FIRED RIBBON BURNER AND ELECTRODE ASSEMBLY Hiram E. Temple, Rosemead, Califi, assignor to Baker Perkins Inc., Saginaw, Mich., a corporation of New York 1 Filed Mar. 14, 1968, Ser. No. 713,071 Int. Cl. /23, 3/00; F2311 5/26 US. Cl.
  • One of the prime objects of the present invention is to provide a burner assembly having a disassemblable electrode member which is so designed that proper positioning of the electrode edge relative to the burner ports is rendered automatic upon initial installation or replacement following cleaning, and the danger of the flag being mispositioned so that raw gas does not ignite and is emitted to create a dangerous explosive condition in the oven is eliminated.
  • a further object of the invention is to design a burner and electrode assembly which does not require use of a peep-hole to adjust the position of the electrode, and which cannot slip out of preadjusted position.
  • Another object of the invention is to design a burner and electrode assembly which is operable to remove graphite and other shorting deposits from the burner ports.
  • Still another object of the invention is to provide a ribbon burner electrode assembly which is positive in operation and wherein the manipulative parts which are used to effectuate ignition are located outside the oven and can be conveniently operated.
  • Still another object of the invention is to provide a very eflicient and highly reliable ribbon burner and electrode assembly of relatively simple construction which can be very economically manufactured and assembled for sale to the baking industry for use in the baking ovens of commercial bakeries.
  • FIGURE 1 is a fragmentary, sectional, top plan view, taken through an oven side wall and illustrating the novel oven burner and electrode assembly which is provided for electrically igniting fuel gas which issues from the side ports of the burner.
  • FIGURE 2 is a fragmentary, front elevational view thereof.
  • FIGURE 3 is an enlarged, fragmentary view of certain electrode operating parts, taken on the line 33 of FIGURE 2.
  • FIGURE 4 is a fragmentary, front elevational view thereof.
  • FIGURE 5 is an enlarged fragmentary view showing the electrode flag swung over to engage the burner port grill members.
  • a letter W generally indicates the insulated side Wall of an enclosed baking oven of conventional design which includes top and bottom walls as well as side walls, and is of the type used in the baking of bread and other bakery products.
  • a fuel gas burner assembly generally designated B is supported in position on the side wall of the oven and includes a tubular casing member 10 projecting longitudinally into the oven usually transversely of the length thereof.
  • a typical installation showing a tunnel oven of considerable length, in which a large number of such burner and electrode assemblies are used in transverse disposition, is disclosed in United States Patent No. 2,801,686.
  • the burner B which is shown may be considered to be of exactly the construction disclosed in my United States Patent No. 3,172,460, and accordingly the burner B will not be described in detail.
  • the burner casing or barrel 10 is closed at its inner end by an end wall 11 (FIGURE 5) and a longitudinally extending slot 12 is provided in one of its sides for ac commodating the port forming ribbon or grill assembly generally designated R which is made up of electrically conductive metal strips of the character disclosed in both of my aforementioned patents forming burner ports p.
  • the burner casing 10 is coupled by sleeve 13 to a housing section 14 which is fixed Within a burner box 15 extending through an opening 16 in the wall W.
  • a cover plate 17 for the box 15 may be secured to the wall W by cap screws 18.
  • a premixed hydrocarbon gas and air mixture under a predetermined pressure is supplied to the burner 10 which preferably includes a manifold assembly 19 of the character disclosed in my United States Patent No. 3,172,460, via a supply pipe 20 extending from any suitable conventional fuel gas source.
  • a removable contiguous igniter unit Extending coextensively with the burner assembly B is a removable contiguous igniter unit, generally identified by the letter I, which includes a casing or housing 21 extending through an opening 22 provided in the wall 17 of burner box'15.
  • a removable contiguous igniter unit generally identified by the letter I, which includes a casing or housing 21 extending through an opening 22 provided in the wall 17 of burner box'15.
  • a crank arm handle or lever generally designated 26 is secured to the casing 21.
  • the crank arm or actuator lever 26 is provided with a clamp ring 26a and may be securely clamped to the reduced rear end 21a of the electrode casing 21 by suitable means such as a capscrew 26b.
  • a spring assembly generally designated 27 is provided for maintaining the arm 26 and accordingly the flag 24, in the position shown in FIGURE 2 wherein the flag is spaced from the burner ports p.
  • the spring assembly 27 includes an angle member 28, adjustably secured to the burner box front plate 17 by means such as a bolt 29 extending through an elongated slot 30.
  • a bolt member 31, extending freely through an opening 260 in the arm 26, has a threaded end received in a threaded opening 32 provided in the angle support member 28 to function as a spring guide for a coil spring 33 which is interposed between the support 28 and a Washer 34 on bolt member 31.
  • the peep-hole cover 35 which is mounted on an arm 37 to swing outwardly and upwardly about a pin 36.
  • the cover 35 covers an opening in plate 17 which, when the cover 35 is swung upwardly, permits the workman to see into the interior of the oven.
  • it will be necessary from time to time to remove the electrode assembly I in the manner indicated in my Patent No. 3,352,346 for cleaning and to replace it, and the peep-hole will permit the workman to do this without physically entering the oven.
  • the cap screw 29 is first removed. It is then merely necessary to grasp the end 26a of the casing 21 and swing the casing 21 outwardly laterally from the burner B and out of the yoke 26. When the casing 21 is then moved rearwardly, the assembly I can be tilted to pass the flag 24 out the opening 22. Reinsertion of the electrode assembly I is also a simple matter and can be accomplished by inserting the flag 24 in tilted position through opening 22 and then replacing the casing 21 in the yoke 26. After this, the ca p screw 31 can be replaced. It is desirable to maintain a gap of about .020 of an inch between the flag edge 24a and the ribbon burner assembly.
  • the handle 26 can be pressed upwardly in the clockwise direction of the arrow a in FIGURE 2 until the flag 24 engages the ribbon burner elements R, and the bolt 31 can then be tightened down to maintain it in this position.
  • the bolt 31 can then be backed off the required predetermined number of revolutions which will automatically provide the proper gap between the edge 24a and the ribbon burner elements R for optimum sparking.
  • the burner is lighted by the operator grasping the protruding end of the angle 28 and the arm 26 between the thumb and forefinger of one hand, for instance, and pressing the handle 26 toward the protruding end of the angle support 28 to compress spring 33.
  • the fiag 24 will be moved in a clockwise direction to the position in which it is shown in FIGURE 5, and in so doing will scrape graphite deposits from the ribbon burner element R.
  • a spark jumps the gap and ignition is achieved virtually every time at the instant gas begins to issue from the burner ribbon assembly R, thus avoiding the creation of the dangerous explosive atmosphere which might otherwise result.
  • the lever 26 can, of course, be jiggled to fully dislodge the graphite and break the short so that ignition can occur.
  • a burner assembly comprising: an elongate tubular burner having longitudnaly extending burner port means; means for supplying fuel gas to said tubular burner and burner port means; electrode rod support and insulating means extending generally coextensively with said burner and having an electrode with a charge transmitting end; means mounting said electrode rod for movement from a position in which said electrode charge transmitting end is spaced from said burner port means through a path of movement in which it wipes said burner port means; and means for supplying an electric charge to said electrode to ignite fuel gas issuing from said port means.
  • a burner assembly comprising: an elongate tubular burner having longitudinally extending burner port means; means for supplying fuel gas to said tubular burner and burner port means; electrode rod support and insulating means extending generally coextensively with said burner and having an electrode with a charge transmitting end; means mounting said electrode rod for rotational movement from a position in which said electrode charge transmitting end is removed from said burner port means to a position in which it is adjacent said burner port means and means for supplying an electric charge to said electrode rod to ignite fuel gas issuing from said port means; said electrode end wiping across said burner port means and scraping carbon deposits therefrom in moving to said adjacent position.
  • a burner and oven wall assembly comprising: an elongate tubular burner having longitudinally extending burner port means; means for supplying fuel gas to said tubular burner and burner port means; electrode rod support and insulating means extending generally coextensively with said burner and having an electrode with a charge transmitting end; means mounting said electrode for rotational movement from a positon in which said electrode charge transmitting end is removed from said 'burner port means to a position in which it is adjacent said burner port means; means for supplying an electric charge to said electrode rod to ignite fuel gas issuing from said port means; said electrode rod support and insulating means extending through said oven wall and having a rear end extending outside said wall; a crank handle fixed on said rear end; and spring means biasing said handle to the rotary position in which said electrode end is removed from said burner port means.
  • a burner assembly comprising: an elongate tubular burner having longitudinally extending burner port means; means for supplying fuel gas to said tubular burner and burner port means; electrode rod support and insulating means extending generally coextensively with said burner and having an electrode with a charge transmitting end; means mounting said electrode rod for rotational movement from a position in which said electrode charge transmitting end is removed from said burner port means to a position in which it is adjacent said burner port means; means for supplying an electric charge to said electrode rod to ignite fuel gas issuing from said port means; and actuator means for rotating said electrode rod including an actuating arm secured to said electrode rod, a bracket spaced from said arm, and a biasing element mounted between said arm and said bracket.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Gas Burners (AREA)
US713071A 1968-03-14 1968-03-14 Gas fired ribbon burner and electrode assembly Expired - Lifetime US3490856A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71307168A 1968-03-14 1968-03-14

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US3490856A true US3490856A (en) 1970-01-20

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3926545A (en) * 1973-11-30 1975-12-16 Diplomat Ag Self-cleaning electrically ignited lighter
US4154573A (en) * 1977-10-21 1979-05-15 Flynn Burner Corporation Adjustable ignition electrode assembly
US4462790A (en) * 1981-11-02 1984-07-31 Danfoss A/S Electrode arrangement for an oil or gas burner
US5088917A (en) * 1989-05-19 1992-02-18 Electricite De France Gas electroburner with electric power supply and assisted ignition
US20080118878A1 (en) * 2006-11-17 2008-05-22 Banner Engineering & Sales, Inc. Combustible fuel igniting apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1173851A (en) * 1915-02-01 1916-02-29 Percy Gerald Owen Gas-stove.
US3172460A (en) * 1961-11-24 1965-03-09 Baker Perkins Inc Ribbon burner assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1173851A (en) * 1915-02-01 1916-02-29 Percy Gerald Owen Gas-stove.
US3172460A (en) * 1961-11-24 1965-03-09 Baker Perkins Inc Ribbon burner assembly

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3926545A (en) * 1973-11-30 1975-12-16 Diplomat Ag Self-cleaning electrically ignited lighter
US4154573A (en) * 1977-10-21 1979-05-15 Flynn Burner Corporation Adjustable ignition electrode assembly
US4462790A (en) * 1981-11-02 1984-07-31 Danfoss A/S Electrode arrangement for an oil or gas burner
US5088917A (en) * 1989-05-19 1992-02-18 Electricite De France Gas electroburner with electric power supply and assisted ignition
US20080118878A1 (en) * 2006-11-17 2008-05-22 Banner Engineering & Sales, Inc. Combustible fuel igniting apparatus

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GB1257675A (enrdf_load_stackoverflow) 1971-12-22

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