Abstract: A safety auditor is designed to perform opening and closing of every safety switch that is used in an industrial bakery oven. Every pressure sensor can be tested for on and off states. The low gas pressure switch can be vented and the high gas pressure switch pressurized. All thermocouples associated with the high temperature circuits are tripped. Fans are started and stopped over a communications signal or via the hard-wired interface as required to generate the safety testing. Once the safety testing is complete, the results along with time, date, name of tester, pass or fail will be printed out via a small kiosk printer. This ticket can then be filed in an office. As the operation is easy to do and requires little effort, it is much more likely to be performed and therefore safer for the host bakery.

Abstract: An apparatus may comprise a first carrier tube having a first input end and a first output end and a second carrier tube disposed substantially parallel to the first carrier tube and having a second input end and a second output end. A cross tube may be coupled to the first carrier tube and the second carrier tube and may be disposed substantially perpendicularly between the carrier tubes. A plurality of burner holes may be disposed along the first carrier tube, the second carrier tube, and the cross tube. A plurality of flame sensors may be disposed at various locations of the first carrier tube and the second carrier tube. A first igniter assembly may further be coupled to the first carrier tube.

Abstract: A heating device including a flame burner (40) and a nozzle (52) into which the flame (50) from the burner (40) is directed and in which process air is mixed with products of combustion from the flame; the nozzle (52) having hot gas discharge openings (106) through which the hot gases resulting from the mixing action are projected onto articles (10) or other material to be heated.

Abstract: A liquid fuel atomizer nozzle having a liquid fuel input and an air input, the nozzle including an internal mixing chamber in which the incoming liquid fuel to be atomized is subjected to high velocity air streams both within the central core of the liquid and about its periphery to effect thorough atomization of the liquid even at low atomizing air flow rates and pressures.

Abstract: An ignition electrode assembly for a gas-fired oven burner formed by a cylindrical casing having a longitudinal slot occupied by metal ribbons to define a port through which gas is emitted. Included in the assembly is an electrode unit which projects into the oven interior through a bushing in a cover plate mounted on a wall of the oven, the unit having a tip on the free end thereof. The unit is pivoted on the bushing by means of a holding collar received in the bushing and having an external handle whose movement is limited to allow the electrode unit to be swung from a normal first position to a temporary second position. In the first position, which is settable, the spacing then established between the electrode tip and the port ribbons creates a spark gap therebetween capable of sustaining a spark discharge when a high voltage is applied across the gap. In the second position, the tip makes direct contact with the port ribbons to initiate the spark discharge.

Abstract: A fuel burner adapted to produce a stable, non-contaminating blue flame throughout a broad operating range. The burner includes a combustion zone into which is directly fed the combustion air. Air-atomized liquid fuel is fed into the combustion zone through a Venturi whose constricted throat communicates by way of a feedback passage to the combustion zone, whereby the ejector effect produced by the atomized fuel passing through the Venturi causes a portion of the hot combustion gas generated in the combustion zone to be drawn into the throat to intermix with the atomized fuel therein, thereby pre-vaporizing the fuel to insure full combustion thereof.

Abstract: A conveyor system for conducting cans which are freshly coated with an ink or other coating through a chamber to dry or cure the coating, the chamber being provided with an energy-emitting source adapted to dry or cure the coating. In order to effect uniform exposure of the cans which are subjected to directed energy from the source, the system includes an endless link belt having a train of pins thereon which extend laterally into the chamber to support the cans, the belt being driven at a controllable speed to advance the cans through the chamber. Also included is an endless sprocket chain which cooperates with sprocket wheels mounted on the outer ends of the pins to cause the pins and the cans supported thereby to rotate as the cans advance through the chamber, the sprocket chain being driven in a selected direction and at a controllable speed relative to the speed of the belt, whereby the direction of can rotation and the rotary rate thereof are adjustable to optimize the drying or curing of the cans.

Abstract: Direct-flame apparatus for drying coatings applied to the outer surface of metal cans. The apparatus includes a conveyor adapted to advance the cans in a continuous train through a tunnel having a series of direct-flame assemblies mounted therein, whereby each can in the course of its advance is progressively heated by the assemblies to cause the cans to emerge from the tunnel in a dried state. Each assembly is constituted by a gas-fed burner element and a hood placed thereover, the element emitting a sheet of flame which impinges on the coated surface and is flanked by curtains of air issuing from the hood at a velocity serving to confine the applied heat within a limited sector of the can and to prevent flashing of the coating despite the high temperature of the flame impinging thereon.

Abstract: An automatic carton sealing system in which sealing is effected by the direct application of a gaseous flame to the surfaces to be sealed. In the system, an unsealed carton formed of paperboard stock coated with a thermoplastic layer and having a flap which extends outwardly with respect to a folded-in flap to define an open shed, is conveyed past a gas burner whose flam is projected into the shed to soften the layers on the flaps, the carton then passing through compression rollers which press the flaps together as the overlapping layers cool and harden to effect a bond therebetween. Included in the system is a conveyor-failure interlock acting to shut off the fuel mixture to the burner should conveyor movement be arrested, and a flame-failure interlock acting to arrest the conveyor should the flame be extinguished.