GB596526A - An improved safety device for electrically-driven machines - Google Patents

An improved safety device for electrically-driven machines

Info

Publication number
GB596526A
GB596526A GB19373/45A GB1937345A GB596526A GB 596526 A GB596526 A GB 596526A GB 19373/45 A GB19373/45 A GB 19373/45A GB 1937345 A GB1937345 A GB 1937345A GB 596526 A GB596526 A GB 596526A
Authority
GB
United Kingdom
Prior art keywords
current
machine
relay
stator
motor
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
GB19373/45A
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.)
Individual
Original Assignee
Individual
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB596526A publication Critical patent/GB596526A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

596,526. Machinery safety devices. INGHAM, G. July 28, 1945, No. 19373. [Class 80(iv)] [Also in Group II] Current from the windings of the stator or rotor of the electric motor a of an electrically driven machine such as a centrifugal machine or hydro-extractor is utilised to actuate a locking bolt for the cover or guard or other part of the machine. As shown, the current from the stator windings passes through a rectifier c to close the contacts e of a moving coil relay d which places a negative voltage on the grid f<SP>1</SP> of a thermionic valve f, the resulting anode current being used to operate a further relay g to close contacts g<SP>1</SP> to operate a magnetic latch or bolt adapted to hold the cover of the machine in position. When the current to the motor is switched off the continued rotation of the rotor of the machine due to its own momentum induces a current in the stator winding which is effective to actuate the relay d until the motor actually stops.
GB19373/45A 1945-07-28 An improved safety device for electrically-driven machines Expired GB596526A (en)

Publications (1)

Publication Number Publication Date
GB596526A true GB596526A (en) 1948-01-06

Family

ID=1734668

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19373/45A Expired GB596526A (en) 1945-07-28 An improved safety device for electrically-driven machines

Country Status (1)

Country Link
GB (1) GB596526A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461883A1 (en) * 1979-07-14 1981-02-06 Truetzschler & Co DEVICE FOR CONDUCTING A MACHINE PROTECTIVE HOUSING
CN107237085A (en) * 2016-03-29 2017-10-10 无锡小天鹅股份有限公司 Rotary drum washing machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2461883A1 (en) * 1979-07-14 1981-02-06 Truetzschler & Co DEVICE FOR CONDUCTING A MACHINE PROTECTIVE HOUSING
CN107237085A (en) * 2016-03-29 2017-10-10 无锡小天鹅股份有限公司 Rotary drum washing machine
CN107237085B (en) * 2016-03-29 2019-05-21 无锡小天鹅股份有限公司 Rotary drum washing machine

Similar Documents

Publication Publication Date Title
GB1241247A (en) An improved electric motor
GB786751A (en) Synchronous motor
GB596526A (en) An improved safety device for electrically-driven machines
GB1236756A (en) Electrically driven vacuum pump
US2487846A (en) Motor for dry-shaving apparatus
GB604753A (en) A combined permanent-magnet type electric motor and generator
US2297472A (en) Phase connection for mechanical rectifiers
SU99519A1 (en) Relay device for automatic self-synchronization of synchronous generators
SU258436A1 (en) Brushless DC motor
GB918544A (en) Improvements in or relating to magnetohydrodynamic electrical generators
GB508004A (en) Improvements in and relating to electro-responsive devices
GB765937A (en) Improvements relating to submersible electrically driven pumps
GB1081168A (en) Improvements in and relating to electric motors
GB230830A (en)
GB590379A (en) Means for the protection of electric motors against overloading
GB619216A (en) Improvements in or relating to electric motors
GB610382A (en) Improvements relating to electric motor controlling systems
GB603372A (en) Improvements in and relating to exploder devices for shot-firing
GB571968A (en) Improvements in or relating to dynamo electric machines
GB805801A (en) Improvements in electric motors with displaceable armature
GB186640A (en) Improvements in control systems for direct current electric motors
GB1364679A (en) Direct current electrical machines
GB619089A (en) Improvements in or relating to electromagnetically operated starter switches for single phase electric motors
GB717123A (en) Control system for electric motors
GB583556A (en) Improvements connected with the operation of a.c. commutator machines