GB449730A - Devices for automatically thawing refrigerating plants - Google Patents

Devices for automatically thawing refrigerating plants

Info

Publication number
GB449730A
GB449730A GB26462/35A GB2646235A GB449730A GB 449730 A GB449730 A GB 449730A GB 26462/35 A GB26462/35 A GB 26462/35A GB 2646235 A GB2646235 A GB 2646235A GB 449730 A GB449730 A GB 449730A
Authority
GB
United Kingdom
Prior art keywords
disc
motor
thermostat
period
refrigerating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB26462/35A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Teves AG and Co oHG
Original Assignee
Alfred Teves GmbH
Alfred Teves Maschinen und Armaturenfabrik KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfred Teves GmbH, Alfred Teves Maschinen und Armaturenfabrik KG filed Critical Alfred Teves GmbH
Publication of GB449730A publication Critical patent/GB449730A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C17/00—Fertilisers or seeders with centrifugal wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002—Defroster control
    • F25D21/008—Defroster control by timer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Defrosting Systems (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

449,730. Automatic control systems. TEVES MASCHINEN-UND ARMATURENFABRIK GES., A., 23, Gustavsburgstrasse, Frankfort-on-Main, Germany. Sept. 24, 1935, No. 26462. Convention date, Nov. 14, 1934. [Class 38 (iv)] Temperature.-A prolonged idle period of the driving-motor b of a compression refrigerating- machine to allow the evaporator d to defrost is brought about automatically when, by reason of the accumulation of frost, the period of operation of the motor permitted by a thermostat f in the cabinet in the usual manner, is extended beyond a predetermined time. The normal control is restored after each de-frosting period. The thermostat controls the lead g to the motor and the other lead h is connected to the motor through a contact strip p on a clockdriven disc m and the coil of a magnet k adapted to withdraw a pawl l out of engagement with a notch in the disc. Normally, the thermostat opens the circuit before tho contact strip p on the disc leaves the contact arm o, and the disc is arranged to return rapidly to its original position after travelling the length of the strip. If, however, the action of the thermostat is delayed, the circuit is broken at the contacts o, p and remains open while the disc completes a revolution, during which time de-frosting occurs. Tilting mercury switches controlled by a cam may be employed. The clockwork may be wound electrically from the current supplying the refrigerating-machine.
GB26462/35A 1934-11-14 1935-09-24 Devices for automatically thawing refrigerating plants Expired GB449730A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE449730X 1934-11-14

Publications (1)

Publication Number Publication Date
GB449730A true GB449730A (en) 1936-07-02

Family

ID=6538306

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26462/35A Expired GB449730A (en) 1934-11-14 1935-09-24 Devices for automatically thawing refrigerating plants

Country Status (2)

Country Link
FR (1) FR449730A (en)
GB (1) GB449730A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202969A (en) * 1987-03-11 1988-10-05 Toshiba Kk Refrigerator with a malfunction detection system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202969A (en) * 1987-03-11 1988-10-05 Toshiba Kk Refrigerator with a malfunction detection system
US4852361A (en) * 1987-03-11 1989-08-01 Kabushiki Kaisha Toshiba Refrigerator with a malfunction detection system
GB2202969B (en) * 1987-03-11 1991-05-01 Toshiba Kk Refrigerator with a malfunction detection system

Also Published As

Publication number Publication date
FR449730A (en) 1913-03-06

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