US1843486A - Range - Google Patents

Description

Feb. 2, 1932. B. B. KAHN ET AL. 1,843,486

RANGE Filed Nov 15, 1928 6 Sheets-Sheet 2 INVENTOR BYW/M M A TTO NE Y Feb. 2, 1932. B. B. KAHN ET AL RANGE Filed Nov 15, 1928 6 Sheets-Sheet 4 not!!! 5251.

A INVENTOR Wal 4 W B! W Feb. 2, 1932. B. B. KAHN ET AL RANGE 6 Sheets-Sheet 6 I 4 l 7- I 4b.]! .L? s

iii

Patented Feb. 2, 1932 UNITED STATES PATENT orrlcr.

m'ramn B. man, or omcmmrrr, m WILLIAM :-r. BRADBURY, or HAMILTON, onro, assxenoas TO THE'ESTATE srovn comramr, or HAMILTON, care, A 003mm- SIGN OF OHIO RANGE Application filed November 15, 1928. Serial No. 319,581.

This invention relates to cooking stoves and is herein shown as applied to a range of the electric type.

()ne object of the invention is the provision of a cooking range which is constructed of a number of sheets or stampings which are connected together in a novel manner so that the connections between parts of the range are practicall invisible to the user.

Another ob ect of the invention is the provision of a range having an oven shell enclosed within an outer oven lining for heat insulation of the oven, outside finish-plates being provided outside the oven lining and spaced therefrom to increase the effectiveness of the heat insulation. Other objects and advantages of the invention will be apparent from the following description and from the accompanying drawings in which-- Fig. -1 is a front elevation of a cooking range embodying the present invention;

Fig. 2 is a top plan view of the range;

Fig. 3 is a vertical sectional view through titre 011611 side of the range on the line 3-3 of Fig. 4 is a section through the cooking top side of the range on the line 4-4 of Fig. 2;

Fig. 5 is a section through the cooking top side of the range on the line 5-5 of Fig. 4;

Fig. 6 is a horizontal section through the oven on the line 6-6 of Fig. 3; and

Fig. 7 is a vertical transverse section through the oven side of the range on theline 77 of Fig. 2.

The cooking range of the present invention, herein shown as a range of the electric type, embodies essentially a main base 10 which may be supported at a suitable height by legs 11. At one side of the main base is a cooking top 12, and at the other side of the main base is the oven.designatedgenerally 13. A rear splash panel 14 is preferably provided above the rear of the cooking top as shown.

Above the forward side of the main base is an oven front 15 preferably in the form of a sheet metal stamping having rearward ly curved side and top flanges. the lower end of the front being marginally flanged in a reverse direction as indicated at 16 so that it may be attached to the upper front portion of the main base by bolts or screws 17, the heads of which are thus concealed within the reverse bend so that the bolts are not apparent from the front of the stove. This oven front 15 has a door opening 18 suitably rabbeted to receive the oven door 19. This oven door is preferably constructed in the manner disclosed in the copending patent of Bertrand B. Kahn No. 1,7 86,429, granted December 30, 1930, and as shown embodies an outer panel 20 and an inner panel 21 between which suitable insulating material 22 may be held. A hinge connection 23 is provided preferably at the bottom of the door to permit the door to open downwardly so that accessmay be had to the interior of the oven. The oven includes an inner oven chamber or shell 25 embodying the top sheet metal portion 26 connected at its rear and side edges to the side portions 27 28 and 29 as by means of the marginal flanges 30, a bottompart 31 being likewise connected to the portions 27, 28 and 29 so that the oven chamber is a continuous sheet metal shell closed at its. front by the oven front 15 and door 19. Suitable insulating material, shown in the form of molded block slabs 33 are shown provided around the oven chamber or shell 25, these blocks being supported within an outer oven lining designated generally 34. This oven lining is' formed of top, bottom and side lining plates 35. 36, 37, 38nd 39, which are preferably sheet metal stampings, the plate 39 forming a back plate at the rear of the stove. These various plates of the outer oven lining are attached together at the rear of the stove by suitable bolts or screws 40 which connect the various marginal flanges of the plates provided for this purpose. The back plate 39 extends downwardly at 41, below the bottom plate 36 and supports the outer oven lining from the rear side of the main base '10. and the forward side of the lower lining plate 36 is downwardly flanged as indicated at 42, Fig. 3, to support the front of the lining from the main base. This provides an air space 43 between the lining plate 36 and the top of the. main base which ining top side of the oven.

5 45 bein formed of a sheet metal stamping provided with marginal flanges by means of which it is supportedin place. The bottom marginal flange 46 and the front/side flange 47 of this panel space it a suitable distance outwardly from the lining plate 37. The oven front 15 extends outwardly and rearwardly at its marginal side to embrace and retain the front portion of this panel 45 neatly without necessitating the use of attaching bolts or screws. The bottom flange 46 is held by a retaining strap 48 connected to the main base by the bolts 49 so that the bottom of the panel 45 is also retained 'without'apparent or visible bolt connections. At the rear of the range the panel 45 has an attaching flange 50, bolts and screws 51 fastening this flange to the side of the back plate'39, and as these screws 51 are at the rear of the stove they are not apparent to the user. The top of this panel 45 is retained and held in place by a top panel 53 which is spaced above the top lining plate 35 by the front marginal flange 54 on this linin plate. The top panel 53 is bent downward l y and inwardly as indicated at 55 and fits against an inwardly and upwardly turned portion 56 of the panel 45 so that when thetop panel is inserted in a downward direction over the oven it retains the top of the side panel 45 without any attaching bolts or screws being apparent to the user. The top panel, being spaced above the top lining plate 35 provides a dead air chamber 57 above the oven so that the top panel, which is preferably formed as a sheet metal stamping may be enameled or otherwise finished to form a finish surface of the stove without the likelihood of the finish being marred or injured by the heat of the oven, due to the effective manner in which the oven is insulated and its spaced arrangement from the heat zone. The panel 45 likewise forms a finish plate, and gives a pleasing appearance to the range, the top panel being held in the same manner as the side panel 45 by a marginal flange of the oven front without the use of bolts or screws. The rear of the top plate is attached by screws or bolts 58 to the back plate 39, this bolt connection being the onl panel 53 in position.

At the cooking top side of the oven the latter is provided with a splash side panel or finish plate 60 which is screwed or bolted at 30 61 to the back plate 39 and held without the use of bolts or screws at its front and top edges by the oven front and by the top panel in the same way that the panel 45 is mounted. This provides a dead air space 61 on the cook- The various fineaaase ish plates, which do not support any substantial weightor enter into the structural frame of the stove other than for finish purposes, are thus all readily assembled and detachable'at the back of the stove, and are all mounted at the front of the stove in such a way as to obviate all attaching bolts and screwsso that a very pleasing and finished appearance of the stovelis the result. Yet the various stoveparts entering into its construction may be formed as sheet metal stampings or the like, all of which are of comparatively simple construction and easily attached together to provide a rigid structure.

Within the oven, and preferably welded to the two sides of the oven chamber or shell are slide clips 63 which support a top-heating unit 64 in such a way as to permit the heating unit to be inserted merely by moving it rearwardly into the oven and permitting its ready removal in a reverse manner. This heating unit, which may be constructed of suitable resistance elements to provide for baking and broiling operations is,provided with terminals 65 at the rear of the unit insertable into female terminals 66 provided in the rear of the oven, the terminals 66 being connected by suitable wiring 67' which leads to the control switches shown iniFig.

4. This wiring is preferably enclosed at the rear of the stove by a housing 67 which'is detachably fastened as by the wing nuts 68 so as to cover the Various electrical connections and terminals. A bottom heating element, used in baking operations, is shown at 68 resting on the bottom 31 of the oven shell. This bottom heating element 68 is electrically connected at its rear in the same manner as the upper heating elementand is insertable into the oven merely by moving it rearwardly or removable from the oven merely by pulling it outwardly, when its forward side is'moved up to clear the door opening. This bottom heating element is prefer ably covered by an oven floor 69 which is flush with the bottom of the door opening, the heating element being thus located below the level of the door opening so that the full space within the oven may be utilized. The oven floor or pan 69 is marginally flanged as shown at.70 so as to rest on the heating ele- '7 y of the heating element, but being normally 55 one necessary for. properly supporting the top held in position by oven ledges 71 the lower edges of which engage-the side portions of the floor 69. These oven ledges 71, which are each preferably bent from a single sheet of metal to provide large horizontal ridges or projections 72 spaced along its height, are separate pieces easily removable from or insertable into the oven, their upper edges being retained by wing clamps or nuts 73 which may be turned through part of a revolution to free the tops of the oven ledges and permit them to be removed, after which. the

- disconnection.

removal of the oven floor is an easy matter.

.The entire interior of the oven may thus be cleaned by removing the heating elements, ledges and floor, all of which are held in place without the use of bolts or screws such as would require the use of tools for their After the removal of these parts from the oven shell the latter may be easily cleaned and it will be noted that the corners 74 of the oven are all curved to aid in cleaning.

Suitable temperature control or indicating means indicated at 76 may be rovided for the, oven, this means being readi y removable and detachably held in lace by screws 77. An oven vent is provided at one of'the oven sides to carry off excess steam." This vent,

shown at 78, has a condensation well 79 to take care of condensation, the trapped liquid preventing excessive movement of hot vapors from the oven. A drain hole 7 9' isprovided for drawing ofi condensation collected or for cleaning pur oses. e

Above the ase 10 on the cooking top side of the stove is a cooking top plate 80, preferably of heavy gage sheet steel and formed as asingle piece of metal. This cooking top plate is supported in position by supports 81 and 82 which are bolted at 83 and 8a to the upper surface of the main base and are connected by bolts 85 to clips 86 welded to the under side of the cooking top plate 80 so that the plate is without bolt openings such as would mar its pleasing appearance. Preferably thefront and side marginal edges of the plate 80 arefianged downwardly at 87 the flange on the oven side of the stove being held by clips or straps 88 which are bolted at 89 to the oven lining plate 38. The cooking top contains a suitable number of holes for receiving the cooking top units 90, these holes preferably being formed by upwardly extending flanges 91 providing grooves or depressions 92 around the units which may receive any material spilled on the cooking top, these grooves being easily cleaned since the cooking top units merely rest on the plate 80 and are readily withdrawn from their normal positions. etween the several cooking top units the plate 80 is depressed-as at 106 to the level of the grooves 92 with which this depression merges. Ata central portion of the depression 106 is an opening 107 below which is a suitable pipe 108 extending to apoint below the various electrical devices under the cooking top so that material which overflows into the grooves and depression cannot overflow the grooves and get into the electrical switches, connections, etc., where it might disturb the pro er functioning of these devices and whereiit is comparatively inaccessible and hard to clean. A collecting I pan 109 is positioned below the pipe 108 which extends to an opening in the main base of the invention, it

10, the pan 109 being provided below the top of the main'base where it is easily accessible for removal and cleaning.

The supports'81 and 82 which hold the cooking top plate 80 also hold switch supporting bars 94 on which are mounted suitable switch bases have manually operable switch members or knobs 96 accessible from the front of the stove for the control of the various cooking top units and oven heating elements.

The rear sides of these switches are electrically connected to suitable bus bars and to the wiring which leads to the various heating elements of the stove. At one side of the switches is a convenience plug as shown, and below the switches is a bracket 97 which is supported on the main base 10 and which in turn supports a main line switch or fuse block 98 and an oven relay switch 99. A

95. These switch bases.

pilot light 100 is also shown supported below the switches on the switch bar and cooking top support 82, These various switch bases and other arts just described are mounted in back out a removable switch panel finish plate102 which extends across the front of the range below the cooking top plate 80. The upper side of thisswitch panel plate is preferably flanged inwardly as shown at 103 below the front flange of the cooking top plate, plate 102 being removably supported by means of suitable attachment members 104 which extend into the mam base 10. The switch studs 105 extend through openings in this switch panel plate and the control knobs 96 are screwed on the outer ends of these studs when the switch panel plate is in position. This switch panel plate preferably does not support-any substantial portion of the weight of the cooking top plate, the supports 81 and 82 performing such function alone. Plate 102 is finished or enameled and easily mounted in position in a detachable manner like the other finish plates of the range, so that its removal for refinishing or replacement is an easy matter.

While the form of ap aratus herein de scribed constitutes a pre erred embodiment is to be understood that the invention is not limited to this precise form of apparatus, and that changes may be made therein without departing from the.

scope of the invention w ich is defined in the appended claims.

What is claimed is:

l. A cooking range of the class described comprising a main base, an oven front on. said base, an inner oven lining above said base, an outer oven lining spaced from, said inner lining, and outer finish plates spaced from said outer oven lining.

2. A cooking range of the class described comprising a main base, an oven front on said base, an inner oven lining above said base, an

outer oven lining spaced from said inner lining, and outer finish plates spaced from said outer oven lining, said finish plates includa top plate and side plates attached at the rear of the stove to said outer oven lining.

3. A cooking range of the class described comprising a main base, an oven front on said base, an inner oven lining above said base, an outer oven liningspaced from said inner lining, and outer finish lates spaced from said outer oven lining, said finish plates including a top plate and side plates attached at the rear of the stove to said outer oven lining the front edges of said finish plates being free from direct connection to theoven front.

4. A cooking range of the class described comprising a main base, an oven front on said base, an inner oven lining above said base, an outer oven linin spaced from said inner lining, and outer fi nish lates spaced from said outer oven lining, said finish plates including a top plate and side plates attached at the rear of the stove to said outer oven lining, the front edges of said finish plates being free from direct connection to the oven front, said top plate being downwardly flanged to enclose the upper edges of the side plates and retain them in position.

5. A cooking stove of the class described comprising an inner oven lining, an outer oven lining spaced from said inner oven lining, and outer finish plates spaced from said outer lining said outer finish plates being held definitely in place at the rear of the stove in a detachable manner, the finish plates at the front of the stove being free from bolted connections.

A cooking stove of the class described comprising an oven front, an inner oven lining, an outer oven lining s need from said inner lining, an outer top nish plate and an outer side finish plate attached at the rear of the stove to said outer oven lining, the front edge of said side finish plate being retained by said ovenfront without direct bolted connection thereto at the front of the stove, said top finish plate being retained by said oven front without direct bolted connection thereto, a side edge of said top finish plate retaining the top edge of said side finish plate without direct bolted connection thereto.

7. A cooking stove of the class described comprising a main base, an oven front on said base, an oven lining, and outer finish plates including a top plate and a side plate fastened only at the rear of the stove to said oven lining, said top and side plates being retained at the front of the stove by said oven front without bolted connection thereto.

8. A cooking stove ofthe class described comprising a main base, an oven front on said base, an oven lining, and'outer finish plates including a top plate and a side plate fas' tened only at the rear of the stove to said oven lining, said top and side plates being retained at the front of the stove by said oven neeaeee front without bolted connection thereto, said top edge or said side comprising an inner oven lining an outer oven linin spaced from said inner lining and enclosing insulation material, and outer finish plates spaced from said outer oven linin and detachably fastened in place to provide a dead air chamber outside of said outer oven lining. f

10. A cooking range of the class described comprising an oven, an oven ledge at each side of said oven,means for retaining upper portions of said oven ledges, an oven floor spaced above the bottom of said oven, a heating unit below said oven floor, the lower edges of said oven ledges retaining said floor in position.

11. A cooking range of the class described comprising an oven, an oven ledge at each side of said oven, means for retaining upper portions of said oven ledges, an oven door spaced above the bottom of said oven, a heating unit below'said oven floor, the lower edges of. said oven ledges retaining said floor in position, a top heating element, said heating elements, oven floor and oven ledges being all-readily removable from the inside of the oven.

12. An electric range of the class described comprising a main base, an oven front havolted to the front of said base so that the bolts are concealed from view atjthe front of the stove, an oven supported above one side ofsaid main base, outer finish plates detachably connected in position only at the back of the stove and having their front edges retained in position by said even front, a cooking top formed of a single sheet of metal having downturned front and side marginal flanges positioned above the other side of said main base, means supporting said cooking top from said main base, and a panel plate detachably fastened below the front of said cooking top.

13. A cooking range of the class described comprising an oven, top and side finish plates spaced from said oven, said side plates having inwardly bent and upturned top flanges and said top plate having downwardly bent side edges adapted to retain said side plates in position without bolted connection thereto.

14. An electric rangeof the class described comprising a main base, an oven front on said base, an oven above said base, oven lining plates spaced from said oven at the sides and top of said oven, and outer finish plates spaced from said lining plates, said plates having marginal flanges which definitely space them apart, said oven front having rearwardly extending edges which embrace ate being downwardly fian ed at its I Ell) the front edges of said finish plates, and means at the rear of the stove only for attaching said top finish plate in position.

15. cooking range of the class described comprising a base, an oven front on said base, oven lining plates supported on said base, outer finish plates spaced from said lining plates at the top and sides thereof, said plates having marginal flanges which definitely space them apart, said oven front having rearwardly extending edges enclosing the front edges of said finish plates, and attachment means only at the rear of the range for securing said top finish plate in position.

In testimony whereof We hereto aifix our signatures.

BERTRAND B, KAHN. WILLI BRADBURY.

Images