US1985980A - Stove construction - Google Patents

Description

Jan. 1, 1935. c. 'M. DIBBLE Q 1,985,930

' STOVE ..CONSTRUCTION Filed Oct. 31, 1929 4 Sheets-Sheet l Jan. 1, 1935. u c, DlBBLE 1,985,980

s'rovs" oous'rauc'non Piles} Oct. 31. 192B." 4 Sheets-Sheet, 2

jive/21% Jan. 1, 1935. .c. M. DIBBLE STOVE CONSTRUCTION Filed Oct. 31, 1929 1 4 Sheets-Sheet Patented Jan.1,1935 1,985,980

UNITED STATES PATENT OFFICE Brothers Company, Juliet, 111;, a corporation of Illinois Application October 31. 1929. Serial 170. 403,690

' 4 Claims. (01. 126-39) This invention relates in general to stove conwhen it is desired to adjust the mixing chamstruction, and more particularly to stove conbers, and structions wherein the fuel supply manifold for Fig. is a partial section taken substantially the stove is arranged beneath the top frame of on the line 10-10 of Fig. 8. V

5 the open burner portion of the stove and is con- For the purpose of illustrating the invention, 5

cealed behind a front plate or stove part. the drawings show a gas range supported on legs The invention has for a principal object the 11 and having a substantially rectangularbase provision of a stove construction wherein the frame 12, shown in Fig. 1, arranged above the concealing plate or stove part will be so conlegs 11. A combined broiler and oven portion '13 l0 structed and arranged as to permit the adjust! of a usual or preferred construction issupported 1O ment and cleaning of the valves and mixing on an end of the base frame 12 and comprises a chamber shutters without removing from the usual number of ovens 14. The ovens 14 are stove the concealing plate or part. The invenclosed by suitable doors 15 and provide oven cooktion contemplates inthis regard the provision of ing space for the stove.

15 a front concealing plate which may be readily An open burner portion 16 is supported on the 15.

vice for protecting the manifold and valves from 12 by means of a bolt 18 projecting vertically 20 moved from its normal position to permit access base frame 12 adjacent the ovens 14 and extends to the valves and mixing'chamber shutters. to the end of this frame opposite the ovens.

Another principal object of the invention is The burner portion 16 has a corner frame memthe provision'of a shield or heat insulating de-' ber 17 secured at its lower end to the base frame the heat of the burner and which will reflect the therefrom for mounting the burner portion above heat to a usable point of application. the base 12. The corner frame member 17 is Another important object ofv the invention is substantially angle shaped, having a front-leg the provision for the effective shielding of the 19 which is provided with a slot 21'intermediate supply pipe to the manifold and also the reflecits ends. The top end of the corner frame mem- 25 tion of the heat from the burners backto a deber 17 flares outwardly to provide an enlarged sired point of usable application, portion 22, as shown in Fig. 8, for a purpose I Numerous other objects and advantages ofthe which will be hereinafter described. A corner invention will be apparent. as it is better under frame member 23, corresponding to v the corner stood from the following description, which, when frame member 17, is suitably secured to a side 30 taken in connection with the i accompanying 24 of the broiler and oven portion 13 and has the drawings, discloses a preferred embodiment same sectional shape as the member 17. A'front thereof. leg, 25 of the member 23 is cast to provide a Referring to the drawings: recessed or slotted portion 26 at its lower end to Figure lshows a perspective viewof a gas correspond with the slot 21 in th.member 17. 35 range. embodying the principles 'of the inven- The corner frame members 17 and 23 are illustion; v trated more particularly in Fig. 4.

Fig. 2 shows perspectively one of the parts of The front faces 19 and 25 of the corner frame the range shown in Fig. 1; 1 members are formed as arcs which are provided 40 Fig. 3. shows-v perspectivelyi a frame supportwith ledges 27 arranged along the vertical inner 40., ingmember of the range shown in'Fig.,1;-' edge ofeach of the members 17 and 23. The Fig. 4 shows perspectively a portion of. a corledges 27 are cast or formed to provide at their ner frame member of the range shown in Fig. 1; lower ends lugs 28 which are offset behind the .Fig.'5 is ,an' enlargedplan view ofthe burner ledges 27 on the members 17 and 23. The lugs '35 portion of the range shown in Fig. .1, having parts ,28 have grooves transversely oftheir upper ends removed to disclose certain. construction details; to provide an overhanging projection 29 for each Fig. 8 is a section taken substantially on1the :lugand extend. downwardly to the upper sides line 6- 6 ofFig. 5; w I I of the slot 21 and the corresponding cut-away Fig. 7 is'a section taken substantially on the line portion 26 in the corner frame member 23, these 7--7 ofFl'g. 5;. lugs havingslots 31 extending from the bottom 60 Fig. 8 is a partial elevation ,of a portion of upwardly to a point just below the transverse th ranseillustrat d in Fi w1 's p c grooves which provide the overhanging projecaway and parts in section; tions 29.

Fig. 9 is a section taken substantially on the A frame supporting member 32, having lugs line 9-9. of Fig. 8, showing the relation of parts 33 on each end, is formed or cast with an up- 66 29 of the lugs 28.

standing flange 34 near each end and is adapted to be positioned longitudinally of the burner portion 16 between the corner frame members 17 and 23 and to be secured in place by the lugs 33 on the member 32, engaging with the slots 31 and held therein with washers 35 and nuts 36 threaded on the ends of the lugs 33 against the rear faces of the slotted lugs 28. The upstanding flanges 34, near each end of themember 32, are offset from the top edge 37 of the frame supporting member, as shown in Fig. 3, and adapted to seat in the grooves below the overhanging projections The member 32 is substantially angle shaped in section and along its inner face an internal'ledge 38, cast at the bottom of the frame supporting member, extends between the offset flanges 34, and the member 32, dividing the burner portion between the members 17 and 23 into an upper and a lower portion provides for a usual drip pan 39 arranged below the frame supporting member 32 and in the slot 21, and the corresponding recessed or slotted portion 26 of the member 23. A utility drawer 41 for 'cooking utensils is arranged below the drip pan 39 and extends between the corner frame member 17 and the side 24 of the oven and broiler portion 13, as shown in Fig. 1.

The burner portion 16 is provided with a cast top frame 42 supported at its front by the corner frame members 17 and 25 and by suitable stove members (not shown) at its back and which is substantially rectangular in plan, and open as shown in Fig. 5. The top frame 42 has depending'sides 43 along its front and ends and is arranged to be positioned over the burner portion and is secured to the flared end 22 of the comer frame member 17 by means of a bolt and nut assembly which passes through the depending side 43 and the member 17, as shown in Fig. 8. Inner edges 44 of the top frame 42 are cast to depend at an'angle from the horizontal face of the top frame and are formed to provide a horizontal marginal flange 45 which extends around the open portion of the frame to support a usual burner grate 46, as shown in Fig. 1. Extending inwardly from the flange 45 are a plurality of arcuate horizontal lugs 47 and 48. The lugs 47 and 48 are cast at the front side of the open portion and are provided for purposes to be hereinafter more fully described. Similar lugs 49 and 51 are cast at each side of the top frame open portion to adapt the frame for use on burner portions arranged at the right or left side of a gas range.

A plurality of burners 52 and 53 are positioned below the burner grate 46 and have burner lead pipes 54 which are formed on their ends to provide mixing chambers 55. The bumers 52 are of usual or preferred construction and are supported at the back side of the top frame 42 by means of T-brackets 56 bolted to projections 57 from the burners and supported on lugs 58 projecting from the top frame 42. A suitable pilot burner 59 is provided substantially centrally of the burners 52 and 53 for the purpose of lighting the burners and has a lead pipe 61 which terminates in a pilot valve 62 communicating with a manifold'63 for supplying fuel to the burners.

The manifold 63 is suspended from the top frame 42 by means of a bifurcated bracket 64 which has a horizontal portion adapted to conform with the lug 47 to which it is bolted by a countersunk screw 65 and a nut 66. The bracket 64 has bifurcations 67, which conform with the contour of the manifold 63 and. which partially encircle a portion thereof. The bracket 64 serves to hold the manifold in annular grooves of a plurality of lugs 68, which are cast to the under side of the top frame 42 and depend therefrom to engage portions of the manifold.

The manifold 63 extends substantially across the front side of the burner portion 16 and has on the end-nearest .the oven a cap nut 69 which closes that end. The other end of the manifold threads into a pipe L 71 which communicates with a manifold supply pipe 72 mounted along the side of the burner portion 16 by means of a bolt 73 passing through the lug 49 and a bracket identical to the suspending bracket 64 and grooved depending lugs 74. The manifold supply pipe serves to supply fuel to the manifold 63 and is threaded on its end opposite the pipeL 71 for the purpose of suitably connecting to a source of fuel supply (not shown).

A plurality of valves 75 and 76 are suspended from the manifold 63 with which the valves are threadably connected for controlling the fuel supplied to the burners. The valve 76, communieating with the manifold 63, has suitable pipe connections 77 to the oven and broiler portion 13 and is provided to control the amount of fuel supplied to the ovens. The valves 75, communicating with the manifold 63, also communicate with the mixing chambers on the ends of the burner pipe leads 54. The valves 62, 75 and 76 have valve stems 78 which extend'outside of the burner portion 16 and are provided with suitable control handles 79 which are secured to the stems 78 by means of suitable screws 81.

The mixing chambers 55 are of usual or preferred construction for mixing the fuel for the burners with air of combustion and are provided with adjustable air shutters 82 adapted to be adjustably held in position at the outer ends of the mixing chambers by means of set screws 83 for controlling the amount of air of combustion received by the chambers 55.

A heat directing means is provided between the burners, the manifold 63 and the valves 62, 75 and 76 for the purpose of protecting the valves and manifold from the heat of the burners and to protect, the valves against sticking, due to this heat. The heat directing means comprises a heat reflecting plate 84 suspended from the lugs 48 by means of brackets 85 suitably secured at one end to the lugs 48 by means of screws 86 and secured at the other end to the top of the plate 84, the top of the plate being marginally folded back upon itself to facilitate and to strengthen this connection. ,One of the brackets 85 is held between the horizontal face of the manifold supporting bracket 64 and the arcuate lug 47. The plate 84 is arranged substantially at 45 degrees to the horizontal and is adapted to direct, by reflection, the heat received from the burners 52 and 53 to f a point of application and has a plurality of slots 87 extending upwardly transversely of the plate from its lower ledge to register with the pipe leads 54, 61 and 77. It will be observed that the plate 84 extends substantially across the front of the burner portion 16 and from the top frame flange 45 down below the pipe leads from the burners.

A supplemental plate 88 is secured in spaced relation to the front face of the plate 84 by means of a plurality of Z-brackets 89 suitably secured to the plate 84 along a line Just below the marginal fold at the top of the heat-reflecting plate and to the top of the plate 88 which is marginally folded back upon itself to facilitate making and to strengthen the connection between the plate and the Z-brackets 89. The plate 88 extends parallel to the plate 84, and is formed to provide a pluof the two plates, and to provide .a plurality of slots 87"to correspond with the slots 87 in the heat reflecting plate 84 in order to accommodate the burner pipe leads. The arms 91 space the plates apart so-that an air space 92 is provided between. the two plates to permit a continual circulation of air, whereby to cool the. said plates and to afford insulation between the burners and the manifold and valves. It will be noticed that the front plate 88 is positioned behind the shutter set screws 83 in order not to interfere with the adjustmentof the air shutters 82.

The manifold supply pipe 72 is provided with a heat directing means which. is adapted to'reflect heat from the burners away from the manifold supply pipe in order to prevent heat from being conducted along the pipe 72 and the manifold 63 to the valves, thereby causing the valvesto stick in spite of the heat directing means along' the front of the burner portion. The heat di recting meansfor the manifold supply pipe is similar to that already described for the manifold and comprises a heat reflecting plate 93 (shown in Fig. 7) which is mounted substantially at 45 degrees to the horizontal by means of brackets 94 secured at their upper ends to lugs 51 by means of screws 95 and secured at their other ends to the reversely folded top of the plate 93. The plate 93 extends along the end of the burner portion 16 substantially the full width of the burner portion overlapping at its front end the plate 84 where the end of the plate 93 is tapered, as shown at 96 in Fig. 5. to correspond with the inclination of the plate 84, providing an effective comer seal between the edge of the plate 93 and the front face of the plate 84, as shown in Figs. 5 and 9.

A supplementary plate 97 extends parallel to the plate 93 to which the plate 97 is secured by means of .a plurality of Z-brackets 98 secured to the outermost face .of the heat reflecting plate along a line just below the brackets 94. The Z- brackets 98 are secured at their other ends near the top to the plate 97, which is folded back upon itself to facilitate making and to strengthen the connection,- and the brackets provide means for spacing the plates 93 and 97 apart at their tops. The lower portions of the plates 93 and 97 are likewise secured together by means of a pluralityv of Z-brackets 99. By so spacing the plates 93 and 9"! an air space 101 is provided between the plates permitting a continual circulation of air therebetween to insulate the manifold supply pipe 72 fromthe heat of the burners.- v

In order to conceal the manifold and valves, 9. slidable plate102,.shown particularly in Fig. 2, is provided to seat on the frame supporting member 32 between the corner frame members 17 and 23. The plate 102 is cast with downwardly spaced slots 103 which register with the valve stems 78. Suitable words are cast on the face of the plate 102 around the slots 103 to indicate the valve positions by the relative positions of the handles 79 and the words around the slots 103. A flange 104 is cast at the bottom of the plate 102 so that the flange follows along the lower horizontal edge on each side of the plate and around the slots 103. Intermediate the ends of the plate 102 a plurality of depending flanges 105 are cast to depend from the flange 104 at the back of the plate 102 and are arranged to engage ably interlock behind the-edge 37 intermediate the ends of the frame supporting member 32.

The ends of the plate 102 arearranged to rest against the ledges 27 of the corner frame mam has 17 and 23 and have oifset lugs 106-which are adapted to interlock behind the ledges, as shown in Fig. 10. The plate 102 is of such dimensions thatits top edge is concealed by the depending side 43 of the top frame but does not extend upwardly to the lower horizontal face of the top frame. This construction retains the plate 102 in the stove the while permitting it to slide up to a' position permitting ready adjustment of the valves and shutters as will now be described.

As shown in Fig. 9, therefore, the plate 102 is arranged to slide upwardly, being guided in this movement by means of the interlocking flanges 106 onthe plate and ledges 27 on the comer frame members 17 and 23, so that the valves may be adjusted and so that a tool 107 (shownin dotted :0

' be lowered again to its normal position in which the slots 103 are positioned around the valve stems 78 just behind the valve handles 79, the flanges 104 around the slots permitting a slight clearance between the inner edges of the handles and the flanges, the depending flanges 105 being engageable behind the edge portion 37 of the frame supporting member 32, the offset flanges 34 on the ends of the member 32 being engaged behind the ends of the plate 102 and the plate and corner frame members 17 and 23 being slidably interlocked by means of the lugs 106 and the ledges 27.

It will be manifest that a stove embodying 'my invention will economize in the use of fuel in that the deflection plate refiects'the heat back .at an angle and to the side walls of cooking utensils above the burners.

It will be manifest also that adjustment or cleaning of the valves and of the shutter inlets to the mixing chambers may be accomplished by merely lifting the plate 102 and without its removal or the removal of any of the parts of the stove.

It is thought that the invention and many of its attendant advantages will be understood from the foregoing description, and it will be apparent that various changes may be made in the form,

construction and arrangement of the parts without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the form hereinbefore described being merely a preferred embodiment thereof.

I claim: I

1. In a gas range, a burner portion comprising the combination of a plurality of burners, a manifold, a plurality of valves arranged to communicate with the burners and the manifold, a

top frame, a heat directing plate suspended from frame, a heat directingplate suspended from the top frame at an inclination thereto and another plate secured to the heat directing plate and spaced apart therefrom to provide an air space between the said plates, whereby to protect the valves and the manifold from the heat of the burners, said plates having slots to partially encircle said lead pipes.

3. In a gas range, a burner portion comprising the combination of a top frame, a plurality of arranged between the burnersand the manifold.

supply pipe and having a front plate and a rear plate secured thereto in spaced relation, and heat directing means arranged between the burners and the manifold and valves for protecting the manifold and valves from the heat of the bumers, the last said means having a front plate and. a rear plate secured thereto in spaced, relation, and said heat protecting means of the manifold supply pipe arranged to overlap the heat protecting means of the manifold andto co-operate with the last said means in reflectingheat away from the valves, the manifold and the manifold supply pipe to a desired point of application.

CLAUDE M. DIBBLE.

Images