No.v. 29, 1938.
`
`J. W. MYERS
`
`2,138,706
`
`ELECTRICAL COOKING APPARATUS
`
`Filed June 18, 1936
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`4 Sheets-Sheet 1
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`Nov. 29, 1938.
`
`J. W. MYERS
`
`2,138,706
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`ELECTRICAL COOKING APPARATUS
`
`Filed June 18, 1936
`
`4 Sheets-Sheet 2
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`4 i
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`Jf:'' 6
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`
`Nov. 29, 1938.
`
`J. W. MYERS
`
`2,138,706
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`ELECTRICAL COOKING APPARATUS
`
`Filed June 18, 1936
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`4 Sheets-Sheet 3
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`24
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`24
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`.5.9
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`
`Nov. 29, 1938.
`
`J. W. MYERS
`
`2,138,706
`
`ELECTRICAL COOKING APPARATUS
`
`Filed June 18, 1936
`
`4 Sheets-Sheet 4
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`40
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`Patented Nov. 29, 1938
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`2,138,706
`
`UNITED STATES PATENT OFFICE
`
`5
`
`2,138,'706
`ELECTRICAL COOKING APPARATUS
`.Joseph W. Myers, Philadelphia, Pa., assignor to
`Proctor & Schwartz, Inc., Philadelphia, Pa., a
`corporation of Pennsylvania
`'Application June 18, 1936, Serial No. 85,994
`7 Claims.
`(Cl. 219-35)
`This invention relates to electrical cooking ap-
`Fig. 1 is a plan view of a preferred form of the
`pliances and, more particUlarly, to a novel elec-
`appliance;
`trical cookipg appliance embodying features
`Fig. 2 is a sectional view taken along Ifne 2-,-2
`which re;nder the appliance extremely fiexible in
`of Fig. 1 showing cooking receptacles arranged
`5 its capabilities of operation and make it readily within the appliance;
`possible to obtain resUlts and to perform a variety
`Flg. 2A is a fragmentary sectional view illus-
`of cooking operations which have heretofore been
`trating a certain feature of the appliance;
`obtainable only by the use of several appliances
`Fig. 3 is a face view of the inner side of the
`or by the use of a cooking range of much greater
`cover or lid of the appliance;
`10 capacity than the present device. More specifi-
`Fig. 4 is a sectional view of the cover or lid 10
`cally, the invention provides an appliance which
`taken along line 4-4 of Fig. 3;
`is adapted to operate from an electrical source of
`Fig. 5 is a fragmentary perspective view show(cid:173)
`relatively low power output, such. as a conven-
`ing a portion of the removable heating unit struc-
`tional household convenience outlet having a
`ture·carried by the cover;
`.
`15 maximum electrical power output of 1650 watts,
`Fig. 6 is a fragmentary perspective view illus- 15
`and yet is capable of performing a wide variety
`trating the novel hinge structure of the appli-
`of cooking operations, in fact, practically any of
`ance;
`the cooking operations normally employed.
`Fig. 7 is a detail sectional view illustrating
`The principal object of the invention, there-
`further the hinge structure and the manner of
`20 fore, is to provide a novel electrical cooking ap-
`utilization thereof;
`plia:rice which is adapted to operate from an elec-
`Fig. 8 is an enlarged fragmentary sectional
`trical source of relatively low power output and
`view· showing a portion of the cover so as to ill us-
`which is extremely :flexible in operation and
`trate a certain feature;
`·
`capable of performing a wide variety of func-
`Fig. 9 is a face view of the control panel or
`25 tions.
`wall of the device;
`Another object of the invention is to provide
`Fig. 10 is an enlarged fragmentary sectional
`an electric:e.l cooking appliance of this character view showing the arrangement of the thermo-
`90mprising a relatively deep vessel having heat-
`static control and the "indicating device of the
`ing units designed and arranged in predeter-
`appliance;
`Fig. 11 is a schematic illustration of the elec- so
`30 mined relation to one another and having heat-
`responsive means for controlling the heating
`trical circuit of the device;
`units and indicating means for indicating the
`Fig. 12 is a perspective view of the device ill us(cid:173)
`condition of the vessel, a relatively shallow cover
`trating its adaptability for broiling and like op(cid:173)
`or lid for the vessel having an auxiliary electri-
`erations; and
`35 cal heating unit of predetermined capacity
`Fig. 13 is a perspective view of the adjustable 35
`mounted thereon in cooperation with the vessel,
`rack or support employed.
`and me<1ns whereby the first-mention~d heating
`Referring now to Figs. 1 and 2 of the drawings,
`units and the last-mentioned heating unit may be
`the appliance comprises a relatively deep vessel
`energized separate& and selectively only. The
`(which is preferably oval in shape, although it
`40 invention thus provides an appliance having a will be understood that the vessel may take any 40
`cooking chamber which is heatable to a desired
`desired form. The vessel may comprise nested
`t,.empera_ture that is automatically maintained,
`receptacles Ia, lb and lc to provide a hollow side
`and an auxiliary heating unit arranged coop- wall 2 and bottom 3 within which suitable heat(cid:173)
`eratively with the said chamber, the heating
`insulating material· 4 of any conventional form
`45 means of said chamber and said auxiliary unit may be disposed, and to provide a dead air space 45
`being selectively operable, whereby the appliance 5 between receptacles I b and I c, which serves to
`may be variously operated as hereinafter de-
`distribute the heat from the heating units uni(cid:173)
`scribed to perform various cooking operations in
`fOTilllY about the interior space of the vessel. An
`a highly efficient manner.
`electEcal heating unit 6 is disposed within the
`50 A further object of the invention is to provide
`side'! wall adjacent receptacle I b and surrounds 50
`other specific novel features in an appliance of
`the interior space of the vessel,, while a seco11d
`this character which enhance and facilitate the
`electrical heating ui.rl.t 1 is disposed within the
`·operation of the appliance as set forth more fullY.
`bottom of the vessel adjacent receptacle lb and
`hereinafter and defined in the appended claims. <extends substantially throughout the area of the
`In the accompanying drawings:
`bottom. These heating units may take any suit- 55
`
`20
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`25
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`55
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`2,188,706
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`35
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`able form and may, for example, comprise units
`of the general type employed in appliances of this
`general nature. The heating units are designed,
`however, so that their total electrical power con-
`5 sumption is less than the maximum power output
`of the conventional household convenience out(cid:173)
`let. As stated above, such outlets generally hav(cid:173)
`ing a maximum power output of 1650 watts, and
`the units 6 and 7 are preferably designed so as to
`10 have a total power consumption of 1320 watts.
`The heating units are also designed in predeter(cid:173)
`mined relation to one another such that the side
`heating unit 6 supplies a major part of the total
`heat, while the bottom heating unit l supplies
`15 only a relatively minor part of the heat. Prefer(cid:173)
`ablY, the heating units are so designed that the
`side unit 6 supplies about 85% of the total heat,
`while the bottom unit 1 supplies only about 15%
`of the heat. The reason for this specific design
`20 of the heating units will be discussed in detail
`later.
`As shown more clearly in Fig. 2A, the upper
`peripheral edge of receptacle lb is bent over
`the upper peripheral edge of· receptacle Ia, and
`25 heat-insulating strip ld is interposed between
`the said edges. This strip, which may be formed
`of any suitable material, serves to prevent trans(cid:173)
`fer of heat by conduction from the receptacles
`I b and I c to the receptacle I a, thus increasing
`30 the efficiency of the device ·and enhancing its
`operation. The peripheral portion of vessel lc
`is sloped downward toward the interior of the
`vessel to carry material deposited thereon by
`condensation back to the interior of the vessel.
`The appliance also comprises a relatively shal(cid:173)
`low lid or cover 8 which is adapted to be removed
`entirely from the vessel I or may be hingedly
`operated in respect to the vessel by virtue of the
`novel hinge structure 9 described more fully
`40 hereinafter. The cover defines a space above the
`vessel I. The inner surface of the cover 8 is
`heat-reflecting and carries a removable heating
`unit structure I 0 within the said space in cooP..
`erative relation with said surface and said vessel.
`45 The heat-reflecting surface serves to direct and
`concentrate the heat from unit 10 onto articles
`being cooked thereby, as described hereinafter.
`As shown more clearly in Figs. 3 and 4, the struc(cid:173)
`ture I 0 preferably comprises an ovate support II
`50 carrying insulating blocks 12 which serve to SUP(cid:173)
`~rt an electrical heating unit 13.
`.As illus(cid:173)
`trated, the support II preferably takes the form
`of a channel member having the insulating blocks
`12 seated therein. At one end, the support II
`55 carries a recessed lug 14 and a.t its other end, the
`support carries a bracket· 15 (see Fig. 5) having
`an aperture 16 therein. The recessed lug 14 and
`the aperture 16 are adapted to receive project(cid:173)
`ing knobs 11 and 18, respectively, carried upon
`60 the inner side of the cover 8. The knob ll is
`provided With a peripheral recess so that the re(cid:173)
`cessed lug 14 may be brought into cooperative
`relation therewith by moving the support II lon(cid:173)
`gitudinally, and the knob 18 is likewise provided
`65 with a peripheral recess adapted to receive the
`hook-like latch 19 Csee Fig. 5) which is pivotally
`carried upon bracket 15. The latch 19 is pro(cid:173)
`vided with a finger piece 20 to facilitate operation
`thereof. It will be seen that the structure II
`70 may be readily mounted upon and removed from
`the inner side of the cover 8.
`The bracket 15 also carries terminal posts or
`pt"ongs 21 to which the ends of the heating unit
`13 are electrically connected. These terminal
`75 prongs are adapted for insertion through insU-
`
`lated bushings 22 permanently carried within
`openings 23 in the cover, as shown clearly in
`Fig. 8. In addition to removably receiving the
`terminal prongs 21, these openings serve an ad(cid:173)
`ditional function which will be discussed herein- 5
`after.
`The heating units 6 and 1 described above are
`preferably connected in series relation with one
`another and are electrically connected to termi(cid:173)
`nal prongs 24 extending from the side wall of ves- Io
`sel I near the bottom thereof, as shown clearly
`in Fig. 2. In accordance with the invention,
`the heating units 6 and 1 and the heating unit 13
`are adapted for separate and selective operation
`only. The reason for this will be discussed in 15
`detail later. To this end, the prongs 21 and the
`prongs 24 are of a special character so that they
`will receive only a special attachment plug spe(cid:173)
`cifically adapted for use with them. Preferably,
`the two sets of prongs have a certain spacing such 20
`that the conventional cord and plug cannot be
`employed with them but they require a special
`cord and plug to be supplied with the appliance.
`This special plug will be connecteg to the end of
`a conductor cord, as commonly employed in the 25
`use of household appliances, and the other end
`of the cord will carry a conventional plug aQ.apted ·
`to be inserted in the usual convenience outlet.
`It will be seen, therefore, that, by using a single
`supply cord of this nature, the heating units 6 30
`and 1 and the heating unit 13 may only be e!ler(cid:173)
`gized separately and selectively. The heating·
`unit 13, like the units 6 and 1, is designed to
`have a maximum power consumption less than
`the maximum power output of the conventional 36
`household convenience outlet. Preferably, the
`unit 13 has a maximum electrical power consump..
`tion of about 1500 watts. Thus, the units 6 and
`1, or the unit 13, may be electrically connected
`to a low capacity electrical ·source, such as the 40
`usual convenience outlet, without exceeding the
`power output of such source.
`The hinge structure 9 and the manner of op(cid:173)
`eration thereof are clearly illustrated in Figs. 6
`and 7. This structure comprises a U-shaped 45
`member 25 carried by the cover 8 and adapted
`to seat in recesses 2& of the supports Z1 forming
`a part of bracket 28 which is carried by the side
`wall of the vessel I. The recesses 2& are formed
`as illustrated so that the lid 8, when in place 50
`upon the vessel I, may be lifted vertically upward
`o:!f of the vessel I, as shown in broken-line rep..
`resentation in Fig. 7 at 29, and during such re(cid:173)
`moval, the U-shaped member 25 is freely remov(cid:173)
`able from the recesses 26; or the cover 8 may be 6iS
`hingedly operated in respect to the vessel I, as
`illustrated in broken-line representation in Fig.
`7 at 30, in which case, the recesses 2& retain the
`member 25 so that the hinge structure operates
`as an ordinary hinge. This structure greatly fa- eo
`cilitates the use and operation of the appliance.
`The vessel I is adapted to receive either the
`cooking receptacles S I, 32 and 33, as illustrated in
`Fig. 2, or the rack 34 <see Figs. 12 and 13), as will
`be discussed hereinafier. The receptacles If, 65
`12 and 13 may be constructed and arranged in
`accordance with the teaching of United States
`Patent 2,078,165, granted to Walter lll. Schwartz
`on April 20, 1937, so that these receptacles may
`be handled individually or together as a unit. 70
`It will be understood, however, that ordinary
`cooking receptacles may be employed.
`'l'he rack
`34 comprises an open or mesh-like body II hav(cid:173)
`ing integral feet I& extending from one side
`thereof and having members. 11 exteDdfng from T5
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`

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`2,188,706
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`the other side which are adapted for adjustable
`attachment to supports 38. To this end, the
`members 31 are formed to provide retainer por(cid:173)
`tions' 39 which are adapted to slidably retain the
`5 side members 40 of the supports 38, and the upper
`· ends Of the side members 40 are bent as illus(cid:173)
`trated at 41 for cooperative engagement with
`the portions 42, 43, and 44. In Fig. 13, the body
`or rack 35 is supported in its highest position,
`10 the portions 41 of supports 38 engaging the low(cid:173)
`ermost latching portions 42 of members 31. It
`will be seen, however, that by springing the sides
`40 inward, the portions 41 may be made to seat
`in the latching portions 43 or the latching por-
`15 tions 44, at which time, the retainer portions 39
`of members 31 will slide downwardly upon the
`sides 40 of supports 38. While three position ad(cid:173)
`justments of the rack 35 upon the supports 38
`are embodied in the illustrated form of the de-
`20 vice, it will be apparent that further position
`adjustments may be readily provided by proper
`construction of the cooperating members.
`The vessel I is provided with means for ac-·
`curately controlling the heating units 6 and 1 so
`25 as to automatical~y obtain and maintain a prede(cid:173)
`termined temperature within the vessel, and
`there is further provided means for indicating
`the condition of the heating units and the tem(cid:173)
`perature inside vessel I. Moreover, there is pro-
`30 vided means whereby the predetermined tem(cid:173)
`perature of vessel I may be adjusted to perform
`various cooking operations and whereby the heat(cid:173)
`ing units 6 and 1 may be manually deenergized
`to interrupt the cooking operation. There is
`35 mounted within the side wall of vessel I at the
`front and near the bottom thereof, a thermostat(cid:173)
`icallY-controlled switching device 48, as shown in
`Fig. 10, and this device is controllable by means
`of the rotatable shaft 49. As illustrated in Fig.
`40 11, the thermostatic switch 48 is connected in
`series relation with the heating units 6 and 1
`and is adapted'to control the energizing circuit
`for the said units. The device liB comprises es(cid:173)
`sentially a thermostatic element 50 which may
`45 take the form of a bimetallic strip and which car(cid:173)
`ries a contact 51, and a flexible contact arm 52
`mounted cooperatively with the element 50 upon
`a common insulating support 53 and carrYing
`a contact 54 cooperatively associated with con(cid:173)
`. tact 51. The device further comprises a cam 55
`50 carried upon the control shaft 49 and cooper(cid:173)
`atively arranged with arm 52 so as to control
`the position of that arm.
`In operation, the
`thermostatic strip 50 flexes outwardly in response
`55 to heat and causes the contacts 51 and 54 to open
`at a predetermined temperature. This tempera(cid:173)
`ture may be varied by adjusting the position of
`arm 52 causing this arm to exert at co~tact 54
`more or less pressure upon contact 51 to vary the
`60 flexing movement of strip 50 necessary to open
`the contacts. When the cam 55 is moved to its
`lowermost positipn, however, the contacts 51 and
`54 are opened by virtue of the resilience of arm
`52 which caus~s that arm to move away from
`65 strip 50. The <lontrol shaft 49 of the device car(cid:173)
`ries at its outet end a knob (see Fig. 9) which
`serves cooperatively with indicia 51 on an' indi(cid:173)
`cating panel of vessel I, thus enabling :;,djust(cid:173)
`ment of the device 48 for operation at any on8 of
`70 the various temperatures indicated· or to deener(cid:173)
`gize the heating units as also indicated.
`As illustrated in Fig. 10, there is also provided
`on vessel I, an indicator in the form of a pilot
`light 58, which is preferably mounted below the
`75 control shaft 49 so as to be clearly visible on the
`
`IS
`
`3
`control panel as shown in Fig. 9. As illustrated
`in Fig. 11, the indicating lamp 58 is shunted by
`a resistance 59 and the two are connected in se(cid:173)
`ries relation with the heating units 6 and 1 and
`with the thermostatic switch 48, so that the in-
`dicating light is energized when the circuit of
`the heating units is closed and is deenergized
`when the said circuit is opened. Thus, it will
`be seen that when the appliance is turned on,
`the light indicates the fact that the vessel I is 10
`being heated and when the indicating light is
`extinguished or goes out, the user is apprised of
`the fact that the temperature for which the
`thermostatic switch has been set has been
`reached. Until such time as the thermostatic lli
`device is readjusted or the appliance is turned
`off, the thermostatic switch will maintain the
`vessel lc at the desired temperature. There is
`preferably associated with Jamp 58, a glow cone
`60 of the type disclosed and Claimed in Patent 20
`No. 2,006,509, granted July 2, 1935.
`is
`As previously mentioned, the appliance
`adapted by virtue of its structural features above
`described for wide flexibility of operation and for
`the performance of various .cooking operations. 25
`It is poss~ble by the use of the receptacles 31, 32
`and 33 to cook efficiently a number of articles
`at one time, employing the heating units 6, 1
`and 13 in cooperative manner, as explained more
`fully later. For example, meat may be roasted 30
`in the inner receptacle, while vegetables are being
`cooked at the same'time in the.outer receptacles,
`as indicated in Fig. 2. The specific arrangement
`and design of the heating units 6 and l.and the
`heat distribution obtained, enables the thorough 35
`cooking of articles such as meats without burn-
`·
`ing the meat juices which naturally fall to the
`bottom of the vessel. Alternatively, by employ(cid:173)
`ing the adjustable rack 34, as illustrated in Fig.
`12, articles such as steaks and chops, or dishes 40
`such as au gratin potatoes, may be properly
`cooked employing the heating units in cooper(cid:173)
`ative manner, as explained below, the rack being
`adjusted to the proper height for the particular
`broiling or browning operation to be performed. 45
`The rack may also be inverted so that it stands
`on feet 36 and when thus positioned within the
`vessel I, the rack serves as a trivet for a large
`roast or it may serve as a support for pie or cake
`pans, thus enabling the baking of pies, cakes and 50
`the like. During such use of the rack, the sup(cid:173)
`ports 38 ma~r be used as handles, thus enabling
`easy handling of the rack. In any case, the heat(cid:173)
`ing units 6, 1 and 13 are usable cooperatively to
`definite advantage during various cooking oper- 55
`ations, as will now be explained.
`One very serious objection to electric roasters
`of the type adapted to employ several cooking
`receptacles to enable the cooking of vegetables at
`the same time that meat is being cooked, has been 60
`that the water vapors from the vegetables and the
`heat lost· thereby tend to keep the meat from
`browning as preferred by most people. By means
`of the present appliance, however, the several
`articles may be cooked in the vessel I by means of 65
`heating units 6 and 1 and when the vegetables
`are cooked, the vegetable containers may be re(cid:173)
`moved and the plug may be removed from the
`prongs 24 arid connected to the prongs 2 I, thereby
`deenergizing the heating Units 6 and 1 and ener- 70
`gizing the unit 13. By thus using the unit 13 to
`complete the cooking of the meat, the desired
`browning of the meat may be quickly obtained
`without evaporation of the juices which would
`occur if the meat were browned by the heating 75
`
`

`
`10
`
`4
`units 6 and 7. This same procedure may be
`employed in cooking au gratin dishes and the like,
`so that the articles are cooked principally by the
`heating units 6 and 1 and the final browning oper-
`5 ation is obtained by the use of the unit 13. If
`desired, the procedure may be reversed, using the
`unit 13 first to broil or sear the article to be
`cooked and then using the units 6 and 1 to com(cid:173)
`plete the cooking operation.
`The appliance has a further definite advan(cid:173)
`tageous function in that the thermostatically
`controlled heating units 6 and 1 may be employed
`to preheat the vessel I prior to the broiling of
`articles by means of the unit 13. It is a common
`15 objectionable feature of broilers of comparatively
`low energy density compared with the area cov(cid:173)
`ered, which is a necessary characteristic of broiler
`appliances operated from the usual convenience
`outlet, that satisfactory cooking of some meats
`20 and other articles cannot be obtained. The pres(cid:173)
`ent invention overcomes this objection by enabling
`the preheating of the vessel I prior to the broiling
`of such articles. Thus, the units 6 and 1 may be
`energized to heat tne vessel I to a desired pre-
`25 determined temperature, and when the pilot'light
`indicates that the desired preheating of vessel I
`has been completed, the article to be cooked may
`be placed in the vessd upon the rack 34 and the
`plug may be transferred to the unit 13 to perform
`30 the broiling operation.
`It will be seen, therefore, that the invention
`provides a cooking chamber which is heatable to
`a desired temperature that is automatically main(cid:173)
`tained, and an auxiliary heating unit arranged
`35 cooperatively with said chamber, so that the
`auxiliary heating unit may be used to initiate or
`complete cooking operations performed by the
`heating means of said chamber, or the auxiliary
`unit may be used to perform other cooking opera-
`40 tions following the preheating of said chamber by
`the automatically controlled heating means
`thereof.
`From the above, it will be seen that the heating
`units 6, 1 and 13 are cooperatively associated so
`45 that they may be used ih various manners in the
`cooking operations to obtain highly satisfactory
`results. Moreover, it will be apparent that the
`appliance is adapted to perform practically any
`cooking operation in a highly satisfactory manner.
`50 The removability of the unit I D enables the
`thorough cleaning of that unit and the inner sur(cid:173)
`face of the reflecting cover 8 and, furthermore, the
`openings 23 may serve the purpose of vents when
`it is desired to use the heating units 6 and 1 only.
`55 In other words, the unit I 0 may be removed and
`foods may be cooked in the vessel lc and, during
`such cooking operations, the openings 23 will
`serve as vent openings to permit the escape of
`steam or vapors when desired. It will be noted
`60 also that the unit I 0 is readily removable without
`the use of Lools or sep8.rate fastening devices.
`Although the invention has been described with
`reference to a specific preferred embodiment, it
`will be understood that various changes and mod-
`65 iflcations may be made without departing from
`the prinCiples of the invention.
`I claim:
`1. In an electrical cooking appliance, a vessel
`comprising a plurality c:if nested receptacles, two
`70 of said receptacles having their upper peripheral
`edges thermally isolated one from another by a
`heat-insulating strip interposed between said
`edges, and· a third one of said receptacles being
`disposed within the other two arid spaced there-
`75 from to provide heat-circulating space about the
`
`2,138,706
`
`interior of the vessel, heat-insulating means be(cid:173)
`tween said two receptacles, electrical heating
`units of predetermined relative capacity disposed
`between said two receptacles adjacent the inner(cid:173)
`most one at the side and bottom of the vessel, the 5
`relative capacities of said units being such that a
`major portion of the total heat therefrom ema(cid:173)
`nates from the side wall of the vessel, an electrical
`circuit
`including said units, heat-responsive
`means on said vessel for controlling said circuit 10
`and operative to maintain the interior of the
`vessel substantially at a predetermined tempera(cid:173)
`ture, and indicating means on said vessel opera(cid:173)
`tive to apprise the user of the condition of said
`circuit and whether said predetermined tempera- 15
`ture has been reached.
`2. A combined roaster and broiler appliance for
`household use, comprising a relatively deep vessel,
`an electrical roaster unit including electrical heat(cid:173)
`ing elements disposed within the side walls and 20
`bottom of said vessel, said unit being constructed
`and arranged to have a normal ep,ergy consump(cid:173)
`tion approaching a given permissible energy con(cid:173)
`sumption for the entire appliance, an electrical
`circuit including said unit, electrical terminal 25
`connectors for said circuit on said vessel, heat(cid:173)
`responsive means on said vessel for controlling
`said circuit and operative to maintain the interior
`of the vessel substantially at a predetermined
`temperature, indicating means on said vessel oper- :;,)
`ative to apprise the user of the condition of said
`circuit and whether said predetermined tempera(cid:173)
`ture has been reached, a hinged lid or cover for
`said vessel, an electrical broiler unit mounted on
`the inner side of said cover, ss.ld broiler unit being :J;i
`constructed and arranged to have a normal energy
`consumption approaching said permissible con(cid:173)
`sumption for the entire appliance, the total en(cid:173)
`ergy consumption of both of the said units being
`greatly in excess of said permissible consumption, 40
`and electrical terminal connectors for said broiler
`unit on said cover, the terminal connectors on
`said vessel and the terminal connectors on said
`cover being constructed and arranged to be in(cid:173)
`capable of receiving the usual household appll- 4:1
`ance connectors but capable of receiving selec(cid:173)
`tively a single electrical connector supplied with
`the said appliance, whereby the said units may be
`energized separately and selectively only.
`3. A combined roaster and broiler appliance 50
`for household use, comprising a relatively deep
`vessel, an electrical roaster unit including elec(cid:173)
`trical heating ·elements disposed within the side
`walls and bottom of said vessel, said unit being
`constructed and arranged to have a normal en- li5
`ergy consumption approaching a given permissi-
`ble energy consumption for the entire appliance,
`an electrical circuit including said unit, electri-
`.cal terminal prongs for said circuit on said ves(cid:173)
`sel, heat-responsive means on said vessel for con- 60
`trolling said circuit· and operative to maintain
`the interior of the vessel substantially at a pre(cid:173)
`determined temperature, indicating means on
`said vessel operative to apprise the user of the
`condition of said circuit and whether said pre- 65
`determined temperature bas been reached, a
`hinged cm1cavo-convex lid or cover for said ves-
`sel having a heat-reflecting inner concave surface,
`an electrical broiler unit mounted on the inner
`side of said cover adjacent said reflecting surface 70
`so that the said surface refiects the beat from
`said broiler unit into said vessel, said broiler
`unit being constructed and arranged to have a
`normal energy consumption approaching said
`permissible consumption for the entire appliance, 75
`
`

`
`2,188,706
`
`the total energy consumption of both of the said
`units being greatly in excess of said permissible
`consumption, and electrical terminal prongs for
`said broiler unit on said cover, the terminal
`15 prongs on said vessel and the terminal prongs on
`said cover having a greater spacing than those of
`the usual household appliance connectors so as
`to be capable of receiving only and selectively
`an electrical connector supplied with the said
`10 appliance.
`4. A combined roaster and broiler appliance
`for household use, comprising a relatively deep
`vessel, an electrical roaster unit including elec(cid:173)
`trical heating elements disposed within the side
`15 walls and bottom of said vessel, said unit being
`constructed and arranged to have a normal en(cid:173)
`ergy consumption approaching a given permis(cid:173)
`sible energy consumption for the entire anpli(cid:173)
`ance, an electrical circuit inch.iding said ~nit,
`20 electrical terminal prongs for ·said circuit on said
`vessel, heat-responsive means on said vessel for
`controlling said circuit and operative to main(cid:173)
`tain the interior of the vessel substantially at a
`predetermined temperature, indicating means on
`25 said vessel operative to apprise the user of the
`condition of said circuit and whether said pre(cid:173)
`determined temperature has been reached, a
`hinged lid or cover for said vessel, an electrical
`bl'oiler unit removably mounted on the inner side
`30 of said cover and having electrical terminal
`prongs extending removably through openings in
`the cover to permit removal of the entire broiler
`unit from the cover, said broiler unit being con(cid:173)
`structed and arranged to have a normal energy
`35 consumption approaching said permissible con(cid:173)
`sumption for the entire appliance, the total en(cid:173)
`ergy consumption of both of the said umts being
`greatly in excess of said permissible consumption,
`the terminal prongs on said vessel and the termi-
`40 nal prongs on said cover having a greater. spac(cid:173)
`ing than those of the usual household appliance
`connectors so as to be capable of receiving only
`and selectively an electrical connector supplled
`With the said appliance.
`·
`5. A combined roaster and broiler appliance
`for household use, comprising a relatively deep
`vessel, an electrical roaster unit including elec(cid:173)
`trical heating elements disposed Within the side
`walls and bottom of said vessel, said unit being
`50 constructed and arranged to have a normal en(cid:173)
`ergy consumption approaching a given permissi(cid:173)
`ble energy consumption for the entire appliance,
`an electrical circuit including said unit, electrical
`terminal prongs for said circuit on said vessel,
`55 heat-responsive means on said vessel for con(cid:173)
`trolling said circuit and operative to maintain
`the interior of the vessel substantially at a pre(cid:173)
`determined temperature, indicating means on
`said vessel operative to apprise the user of the
`60 condition of said circuit and whether said prede(cid:173)
`termined temperature has been reached, a hinged
`lid or cover for said vessel, an exposed electrical
`broiler unit of closed loop form removably mount(cid:173)
`ed on the inner side of said cover and having
`65 electrical terminal 'prongs extending removably
`through openings in the cover to permit removal
`of the entire broiler unit from the cover,. said
`broiler unit being constructed and arranged to
`have a normal energy consumption approaching
`70 said permissible consumption for the entire ap(cid:173)
`pliance, the total energy consumption of both of
`the said units being greatly in excess of said per(cid:173)
`missible consumption, the terminal prongs on said
`vessel and the terminal prongs on said cover hav-
`75 ing a greater spacing than those of the usual
`
`45
`
`5
`household appliance connectors so as to be capa(cid:173)
`ble of receiving only and selectively an electrical
`connector supplied with the said appliance.
`6. A combined 1·oaster and broiler appliance
`for household use, comprising a re