DE1249480B - - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

A47j

German class: 34 1 - 2/02

Number: 1 249 480

File number: S 54034 X / 341

Filing date: June 26, 1957

Opened on: September 7, 1967

The invention relates to a cooking kettle with an electrode-heated steam jacket, which at the same time as Storage space for the electrolyte is used and with the electrode space through a steam line and a condensate line is connected, with a built-in in the steam line for power regulation Throttle element is used, when throttling the increasing vapor pressure in the electrode chamber Displacement of the electrolyte causes via the condensate line in the steam jacket.

In a known kettle with an electrode-heated steam jacket, the power is regulated, especially during the transition from "parboiling" to "continuing to cook", by displacing the electrolyte from the electrode space into a receptacle as a result of a throttling or blocking a steam control line, the closure of the steam shut-off device automatically by the im Steam jacket of the boiler prevailing pressure happens and the interior of the receiving vessel can be associated with the outside air.

In addition, a kettle with an electrode-heated steam jacket is known in which the Output regulation also automatic depending on the steam pressure in the steam jacket takes place, which acts on a contact pressure gauge that has an electromagnetic three-way cock operated to allow water to flow into the electrode chamber or to let it escape from it.

Furthermore, kettles are known in which the electrically heated steam jacket as Storage space for the electrolyte is used and with the electrode space through a steam line and a condensate line is connected, with a built-in in the steam line for power control The throttle element is used, and when it is throttled, the increasing vapor pressure in the electrode chamber is used causes the electrolyte to be displaced via the condensate line into the steam jacket.

In the subject matter of the invention, there are no receptacles and no shut-off and switching devices necessary, just a simple throttle device in the steam line.

The invention is based on the object of providing a cooking kettle of the type mentioned at the beginning create, which requires less construction costs.

The invention consists in that the throttle element is actuated automatically by a control element acted upon by the steam pressure in the steam jacket, overcoming the counteracting force of a spring, the bias of which corresponds to the electrode-heated kettle
Steam jacket

Applicant:

Senkingwerk limited partnership, Hildesheim

Named as inventor:
ίο Gerhard Löffler, Hildesheim

Desired steam pressure in the steam jacket at which the throttle valve is to be closed, is variably adjustable.

Some exemplary embodiments of the invention are shown schematically in the drawing.

The subclaims 2 to 5 relate to embodiments of the subject matter of claim 1. It shows A b b. 1 shows a vertical section through a cooking kettle according to the invention with a membrane for controlling the throttle element in the heating-up state, A b b. 2 the external view of the setting and display device in the direction of arrow A of Fig. 1,

Fig. 3 the control of the throttle device by a bellows,

A b b. 4 shows a vertical section through a cooking kettle according to the invention, in which a throttle valve is controlled by a piston, in the continued boiling state,

A b b. 5 shows an enlarged partial section through the cylinder with piston and control parts.

In the A b b. 1, the outer boiler is denoted by 1, the inner boiler by 2 and the heating space between the two boilers by 3 . The electrode steam generator 18 with the electrodes 17 is provided in the housing 6 of the cooking appliance below the outer boiler 1. This is connected to the heating space 3 with its steam line 29 . In the illustrated exemplary embodiments, the steam line 19 can be connected through the throttle valve 20 , which is connected to the rotatable shaft 4 . The electrode steam generator 18 is also connected to the heating space 3 via the displacement line 18 ′ .

To control the throttle valve 20 with the aid of the shaft 4 , a pressure chamber 1S provided with a membrane 11 is used, which is connected to the heating space 3 through the pressure line 16 . The membrane controls the throttle

709 640/27

Claims (1)

flap 20 over a membrane rod 14 running in a guide 9. The switching lever 5 is articulated on the pressure chamber 15 at 5 '. The membrane rod 14 is connected to the shift lever 5. The tension spring 10 engages at the free end of the shift lever. On the lower part of the pressure chamber 15, the setting lever 13 is hinged at 13 '. The spring 10, the tension of which can be adjusted by means of the wing screw 12, is attached to this adjusting lever 13. The setting lever 13 is guided in a setting and locked in the desired position (see Fig.2). The tension of the spring 10 is determined by the height adjustment of the setting lever 13. By changing the spring tension of the spring 10, which acts in opposition to the steam pressure, the throttle valve 20 is closed when the steam pressure is higher or lower. This is achieved in that the curvature of the membrane 11 acts on the shaft 4 via the shift lever 5 through the lever transmission 8 and the throttle valve 20 is adjusted. As a result, further cooking takes place according to the steam pressure in the heating space 3 at a higher or lower temperature. The shut-off valve 33, which at the same time is in a force-locking connection with the switch 32, is built into the displacement line 18 '. The electrical current is switched on via the relay 31. The filling funnel 34 is used to fill in the heating fluid. The pressure gauge is marked 35 and the ammeter 36. The following is the mode of operation of a cooking kettle according to A b b. 1 and 2 described. During the initial start-up, after switching on the electrical current through the switch 32 via the relay 31, the heating fluid, for. B. water, slowly filled through the hopper 34 to avoid a strong surge. When the switch 32 is switched on, the shut-off valve 33 is open and so much heating liquid is poured in until the electrodes are immersed so far that the desired amperage for heating is reached. The kettle is in the heating-up state and the arrow 7 indicating the position of the throttle valve indicates the "open" position (see Fig. 2). The heating liquid in the electrode steam generator 18 evaporates. The steam flows unhindered through the steam line 19 through the throttle valve 20 into the heating space 3, the heating of the inner boiler 2 commencing. Is z. If, for example, the setting lever 13 is in the "strong" position, the spring is most strongly tensioned, and the throttle valve 20 will only be closed by the diaphragm part when the steam pressure in the heating chamber 3 reaches about 0.35 atmospheres. If the setting lever 13 is in the "weak" position, the spring 10 is less tensioned and the throttle valve 20 will be closed at a steam pressure of about 0.1 atm. The desired steam pressure can be readjusted by changing the preload of the spring 10 by means of the wing nut 12. After the throttle valve 20 has closed, the steam pressure in the electrode steam generator rises and displaces the heating fluid through the displacement line 18 'so far into the heating chamber 3 that the electrodes only generate as much steam as is required to continue boiling the kettle contents. In the throttle flap 20 an opening 20 'is provided which is dimensioned so large that when the throttle flap is closed, as much steam can still flow into the heating space as is necessary to keep the contents of the kettle 2 warm or to continue to boil slightly. After the cooking process has ended, some of the heating liquid is located at the bottom of the outer boiler 1 (see A b b 4). By turning off the switch 32, the shut-off valve 33 is closed at the same time, so that the heating liquid cannot flow back into the electrode steam generator 18. When the electrical current is switched on again by the switch 32 via the relay 31, the shut-off valve 33 is opened at the same time, and the heating fluid slowly runs back into the steam generator 18, whereby the increase in the current strength occurs gradually and a current surge is avoided. For a kettle according to A b b. 3, the pressure chamber 15 is replaced by a bellows 21. The pressure line 16 opens into the bellows at the bottom. The guide rod 14 is located on the bellows in a guide 14 'in a manner analogous to the membrane rod 14 in FIG. 1. The mode of operation is the same as that already described in detail above. In the embodiment according to A b b. 4 and 5, instead of the pressure chamber 15 and the membrane 11, a cylinder with a piston is provided. The cylinder 22 is connected to the heating space 3 through the pressure line 16. The cylinder sleeve 25, which is provided with an adjusting nut 27 at its front end, is guided on the cylinder 22. In the through hole of the adjusting nut 27, the piston rod 26 of the piston 23 is provided. Between the adjusting nut 27 and the piston 23, the spring 24 is provided, which has the same effect with respect to the function of the device as the spring 10 according to A b b. 1. The lever transmission 28, which actuates the throttle element 20 in the steam line 19, is provided at the front end of the piston rod 26. The cylinder sleeve 25 is provided with a running pin 30 (see Fig. 4). The running pin 30 is guided in the fork of the angle lever 29, which is rotatably mounted in the pivot point 29 '. With the angle lever 29, the tension of the spring 24 can be increased or decreased. The mode of operation is the same as described in detail above for the subject of A b b. 1 was described. Patent claims: 1. Boiling kettle with electrode-heated steam jacket, which also serves as a storage space for the electrolyte and is connected to the electrode space by a steam line and a condensate line, with a throttle device built into the steam line serving to regulate the output Electrolyte effected via the condensate line in the steam jacket, "characterized in that the actuation of the throttle member (20) is automatically acted upon by a steam pressure in the steam jacket- tes control member (11, 21, 23) takes place by overcoming the counteracting force of a spring (10, 24) , the bias of which is variably adjustable according to the steam pressure desired in the steam jacket at which the throttle member (20) is to be closed. 2. Cooking kettle according to claim 1, characterized in that a membrane (11) or a bellows (21) serves as the control element, the movement of which is transmitted to a lever (5) through an axially displaceable pin (14) , the free end of which is passed through a lever transmission (8) effects the adjustment of the axis of rotation (4) of the throttle element (20) , and that furthermore the counteracting spring (10) engages at the free end of the lever (5) , the bias of which is activated by a lever ( 13) is adjustable. 3. Cooking kettle according to claim 2, characterized in that the adjusting lever (13) for the bias of the spring (10) through the kettle housing (6) is guided to the outside and can be locked in a link guide in different positions, which can be seen on the outer wall of the kettle housing are made. 4. Cooking kettle according to one of claims 1 to 3, characterized in that the rotary The axis (4) of the throttle element (20) is guided to the outside through the boiler housing (6) and there carries a pointer (7) which indicates the position of the throttle element (20) on a scale. 5. Cooking kettle according to claim 1, characterized in that a piston (23 ) which can be displaced in a cylinder (22) is used as a control element, the movement of which is transmitted via a piston rod (26) and a lever transmission (28) to the axis of rotation of the throttle element (20) is, while the counteracting spring (24) is arranged in the cylinder (22) between the piston (23) and an adjusting nut (27) at the end of a cylinder sleeve (25) which can be displaced on the cylinder, the displacement of which can be pivoted to change the spring preload mounted angle lever (29) takes place, which engages with a fork on a radially outwardly protruding barrel pin (30) of the cylinder sleeve (25) . Considered publications:
German patent specifications No. 652 592, 689 317,
436; German utility model No. 1 706 342;
Swiss patents No. 200 024,
426. 1 sheet of drawings 709 640/27 8.67 © Bundesdruckerei Berlin