US2109498A - Top burner assembly - Google Patents

Description

1938- J. T. NYIARVIN ET AL 2,109,493

TOP BURNER ASSEMBLY Filed Dec. 24, 1934 2 Shets-Sheet 1 zmmoxs A TTORNEY March 1938 .J. "r MARVIN ET AL 2,109,493v

TOP BURNER AS SEMBLY Filed Dec. 24, 1934 2 Sheets-Sheet 2' '5 g" m J 727% R Quad/11f mvmoxs Patented" Mar. 1, 1938 UNITED STATES 2,109,498 'ror BURNER ASSEMBLY John '1'. Marvin, Fail-view Village, and mum L. Matthews, Lakewood, Ohio Application pecember 24, 1934, Serial No. 758,992 3 Claims (oi. 158-99),

This invention relates to a unitary burner assembly. As designed, the structure consists 01' a cluster of several burners, a gas cock, and a lighter therefor, all of which are .joined together rigidly as a unit, whereby a minimum of labor and expense may be necessary for their manufacture, installation and maintenance. I

It is an object oi'this invention to provide a plurality of burners, all rigidly joined together,

1 and removable as a unit from an installation.

A further object is to provide, with such an assembly, a lighter, rigidly mounted therewith, and selectively removable therefrom, for igniting any of the burners.

A further object is to provide an assembly of four rigidly connected burners, a valve means for operating them, and rigidly mounted together with them.

A further object is to provide an assembly of this kind wherein a front manifold is eliminated.

A further-object is to provide a device of this kind wherein flash tubes are formed integrally therewith.

A further object is to provide a series of ra- 05 dially spaced, integrally formed Bunsen tubes,

' with flash tubes integral therewith, and spaced therefrom.

A further object is to provide a Bunsen tube having a burner bowl removable therefrom,

whereby a separate'burner structure may be designed to suit any purpose, and whereby a port may be provided for injection of gas into the flash tube.

A further object is to provide a combination valve for this structure compact in design so as -to flt therein, and including control for all the burners, and also having a pilot control integral therewith.

, A further object is to design the Bunsen tubes m so that the valve and projecting spuds may be fitted therein. This may be done by cutting out portions 0! the Bunsens for interfltting the valve.

A further object is to employ this cut-out portion as an air inlet to provide primary air'ior the Bunsen.

The assembly is applicable to any usage requiring several burners. In the appended description, it is described in connection with a top burner assembly for gas ranges, but this is only by way of illustration. I

With these and other objects in view, the in- 1 vention is disclosed in the following specification, and drawings, wherein:

Fig. 1 isa plan view of the device partially cut away. f

Fig. 2 is a horizontal sectional view of the valve used with the device.

Fig. 3 is a section on line 3-3 of Fig. l. Referring to the drawings, l3 indicates a unitary casting having four branches thereon, ll, l2, i3 and i3 radiating from a common center portion; On each of these extensions is secured burner l6. A valve I3 is located in the center portion and is adapted to control the flow of fuel to all of the burners. 10

- four units are integrally joined by a web portion 20 forming a part of the center portion of the 15 assembly.

Referring in particular to Fig. 3, each Bunsen extends radially from thecenter oi the assembly. Fastened toeach is a burner bowl element, generally indicated at 2| and having a screw connection 22 with the Bunsen tube. An opening 23 in the Bunsen registers with an opening 24 in the bowl whereby gas may flow from the Bunsen into the bowl. As shown, the bowl includes an outer overturnedflange 25 and an inner cylin- 25 drical portion 26 having a shoulder thereon. Siidably mounted over the body is a flange member 21-, the flange portion 01 which extends out overtheoverturned portion of burner flange 23, so as to provide a slot-like gas outlet 23. The second flange member 21 has an inner cylindrical portion 29 engaging with the cylindrical portion 26 of the bowl member and designed so as to provide a space having air outlets 30 therein. A web member 3| extends across cylindrical portion 26. Element 23 is capped, as shown, and secured thereto by a rivet or the like is an aeration plate 32. Plate 32, and second flange member 21, are fastened to bowl 2| by a screw 33, threaded into web member 3|. By this means secondary air from underneath the burner may pass upwardly through cylindrical portion 26 around web 3|, and through ports 30 where it is directed by plate 32 outwardly to a point adjacent to the gas slot 23.

As heretofore described, flash tube I9 is formed integrally with Bunsen l4, and, as here shown, is formed as a single casting therewith. The tube is raised oflthe Bunsen by two webs 34. The

secondary air, whereby to support the flame thereat, after the burner has ignited.

Thevalve l6, heretofore referred to, has therein a passage 33 communicating with the inlet'3l 5 thereof and controlled by a needle screw 38 having a lock nut 39 thereon. Port 36 at the top' thereof has a machined screw fitting 40 fastened therein and adapted to direct the flow of 'gas leaving passage 36 to form a pilot device. The valve is has secured therein spud elements 4! to direct gas into each of the Bunsen tubes. Each Bunsen is cut away as at 42 to provide air inlets the size of which may be adjusted by a shutter plate 43. Each opening 42, it will be observed,

extends outward as at 44 and around the end of the Bunsen, whereby with plate 43 moved out of position, the valve may be dropped out fromunder the burner assembly, passageways 42 and 44 permitting the spuds to be removed from the Bunsens. Each Bunsen is likewise provided with a rest 45 that may rest upon any suitable support in the range top.

Referring more particularly to Fig. 2, the valve used herewith includes a body member 50 having inlet 31 that extends into the bottom thereof as shown in Fig.3. Two tapered bores 5| and 52 are formed in body member 50. A T-shaped passageway 53 provides communication between inlet 31 and both taper 5| and taper 52. As will be understood, a similar T-shaped passage 54 likewise provides additional communication between inlet 31 and the two said tapered bores 5| and 52.

The valve provides four outlets, one to each of the Bunsen tubes. The outlets are designated 55, 56, 51 and 58. A passageway 59 is drilled into the housing' 50 and extends almost therethrough. This passageway provides the T portion of inlet passage 53, and likewise provides outlets from the tapered bores on the opposite sides that lead to right angle passageways 60 and 6| communicating respectively with outlets 55 and 56. A plug 51 is located as shown, to close up the end of passage 59. In a like manner a passage 62 is extended almost all the way through the housing and provides communication from inlet passage 54 to the respective right angle passageways 63 and 64 leading respectively to outlets 58 and 51. Passage 62 is plugged as at 65. Each of the right angle passages 50, GI, and 63 and 64 may be drilled into. the body and plugged as at 66.

Within the tapered bore 5|, which is identical with the structure in tapered bore 52 so that only one will be described, is fitted a dual plug control.

The first of these two plugs is designated 10 and has extending from one end thereof a threaded projection 'll extending outside of the housing and surrounded by a spring and locknut device 12 and will maintain the plug in close fit in the tapered bore. Extending from the opposite end of plug 10 is a stem 13 secured to the plug and forming a means for rotating the same. This plug is provided with a transverse passageway 14 adapted to provide communication between inlet passageway 53 and outlet passageway 59, 60 and 55.

A second plug 89 is fitted in bore 5! in tandem with plug 10. This plug is axially drilled to permit handle 13 to extend therethrough. A sleeve 8| terminating in a handle and surrounding stem 13, is secured to this plug for rotating it. A plate I BZ'is secured by a screw to the end of the housing and maintains a spring 83 acting against plug 89 to hold the plug in place. This plug is provided with a peripheral passageway 35 extending half way therearound. which'passageway will establish communication between inlet 54 and outlet 62, 63, and 58.

The operation of the valve is as follows:

the position shown in Fig. 2 wherein passageway 14 will register with passage 53 and passage 59 whereby gas is conducted through 'said passages and passage 60 with outlet 55. To cut this burner oil, it is simply necessary to rotate the plug until passage 14 therein no longer registers with passageway 53. The control of outlet 56 is identical, it being operated by its corresponding handle identically with outlet 55.

To operate the burner connected with branch [4, stem 3| is rotated until peripheral passageway 84 registers with passages 54 and 62 whereupon gas will flow from passages 54 through peripheral passage 84, passage 62, passage 63 and outlet 58. To shut ofi this burner, stem 8! is rotated by its handle until the peripheral passage 84 no longer registers with passage 54. In like manner the burner on branch I3 is controlled vby the rotation of its handle.

Thus each of the burners may be separately adjusted to suit its own particular needs without affecting the adjustment of any of the others. At the same time a. unitary valve structure is provided requiring a minimum number of parts and also requiring a minimum of space so as to fit within the available space in the assembly.

In assembly the entire structure the burner bowls are secured to their respective Bunsens. All

shutters 43 are then opened and the valve is.in-'

serted therein from the bottom and, if desired, may be secured thereto by screws although normally it will be adequately supported on the gas inlet pipe. Inlet 31 of the valve is then joined into the flash tube and back to the pilot. This gas ignites at the pilot, flashes back through a tube and ignites gas issuing from the burner port 28. Each shutter 43 may then be adjusted to give the proper mixture in its Bunsen tube.

The handles of the valve may be led out into a cluster or front panel on'the stove where they form a neat attractive and convenient control device to allure the housewife to their use.

At any time that any adjustment is necessary it may be readily effected since the controls are all in the center of the range.

Having described the assembly, what is claimed is:

1. A device of the character described c0mprising a one piece base member, a plurality of mixing tubes integrally formed therewith, said tubes radiating from a common center and the adjacent ends of said tubes and said base providing a definite space between such tube ends at said common center, a valve device removably mounted in said space, gas directing projections on said device extending into said mixing tubes, each of said tubes having a cut-away portion at one side to permit the unit assembly of said valve device with said base member, and burner means oper-' atively connected to the. outer ends of said tubes.

2. A device of the character described comprising a base member, a plurality of mixing tubes, said tubes and base member being integrally joined, the adjacent ends of said tubes being spaced from one another to provide a definite space between the same and said base, a valve device fitted into said space, gas nozzle projections on said valve device extending into said mixing tubes, means on said tubes accommodating said projections to permit the unit assemblyof said valve device and said integrally formed base mixing tube member, and burner means operatively connected to the outer ends of said tubes.

- 3. A device of the character described comprising a base member, a plurality of mixing tubes formed integrally therewith and radiating from a common center on said'base member, the inner adjacent ends of said mixing tubes being spaced to provide a definite recess between the same and said base member, a valve device closely fitted into 3 said recess, a plurality of projections on said valve device extending into said mixing tubes, fuel regulating spuds on said projections, each of said mixing tubes having a cut-away portion adjacent their inner ends to permit the unit assembly of I said valve device with attached spuds into said recess, and a shutter adjacent each. of said ,cut-

away portions of said tubes whereby to provide means for regulating the air mixture adjacent the spuds within said tubes and said shutters acting to confine said spuds within said tubes to prevent the disassembly of said unitary base and tube member and said valve device.

' JOHN T. MARVIN.

BiRCI-IARD L. MATTHEWS.

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