GB1465050A - Timers - Google Patents

Timers

Info

Publication number
GB1465050A
GB1465050A GB3948773A GB3948773A GB1465050A GB 1465050 A GB1465050 A GB 1465050A GB 3948773 A GB3948773 A GB 3948773A GB 3948773 A GB3948773 A GB 3948773A GB 1465050 A GB1465050 A GB 1465050A
Authority
GB
United Kingdom
Prior art keywords
disc
projection
knob
shaft
spring
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
GB3948773A
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
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 Individual filed Critical Individual
Priority to GB3948773A priority Critical patent/GB1465050A/en
Publication of GB1465050A publication Critical patent/GB1465050A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
    • H01H43/10—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed
    • H01H43/103—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed stopping automatically after one preselected time interval
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F1/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Predetermined Time Intervals (AREA)

Abstract

1465050 Actuation of switches H G NICHOLAS 19 Aug 1974 [21 Aug 1973] 39487/73 Heading H1N [Also in Division F2] A time-delay device for a switch 18 comprises a disc 7 rotatable in a viscous fluid filled casing by a spring 10 and carrying a radial projection 9 past which the fluid has to flow during rotation of the disc. The fluid may be silicone grease. The pre-stressed spring 10 is further wound by rotation of a knob 14 on a shaft 8 rigid with the disc 7. A stop (16, Fig. 4, not shown), cooperates with the projection 9 after less than 360 degrees rotation to ensure that the spring 10 is never more than partially wound up. This ensures a constant driving force for the disc when the knob is released. A pointer 20 on the knob cooperates with a fixed scale 21 so that the required time delay can be set. The disc 7 rotates until the projection 9 hits the stop (16), when a flat on the shaft 8 releases a switch button (not shown) or a projection 17 on the shaft actuates the switch 18.
GB3948773A 1974-08-19 1974-08-19 Timers Expired GB1465050A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3948773A GB1465050A (en) 1974-08-19 1974-08-19 Timers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3948773A GB1465050A (en) 1974-08-19 1974-08-19 Timers

Publications (1)

Publication Number Publication Date
GB1465050A true GB1465050A (en) 1977-02-16

Family

ID=10409816

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3948773A Expired GB1465050A (en) 1974-08-19 1974-08-19 Timers

Country Status (1)

Country Link
GB (1) GB1465050A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2181301A (en) * 1985-10-05 1987-04-15 Link Up Engineering Ltd Adapter for operating switch
GB2288450A (en) * 1994-04-16 1995-10-18 Itw Ateco Gmbh Rotary damper with spring action
WO2010007078A1 (en) * 2008-07-15 2010-01-21 Lundh Joeran Locking device for a child safety gate

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2181301A (en) * 1985-10-05 1987-04-15 Link Up Engineering Ltd Adapter for operating switch
GB2288450A (en) * 1994-04-16 1995-10-18 Itw Ateco Gmbh Rotary damper with spring action
GB2288450B (en) * 1994-04-16 1997-11-05 Itw Ateco Gmbh Rotary damper
ES2127048A1 (en) * 1994-04-16 1999-04-01 Atw Ateco Gmbh Rotary damper with spring action
WO2010007078A1 (en) * 2008-07-15 2010-01-21 Lundh Joeran Locking device for a child safety gate
CN102066676A (en) * 2008-07-15 2011-05-18 龙祖仁 Locking device for a child safety gate
JP2011524953A (en) * 2008-07-15 2011-09-08 ランド ヨラン Child safety gate
CN102066676B (en) * 2008-07-15 2013-09-25 龙祖仁 Child safety gate
US8887441B2 (en) 2008-07-15 2014-11-18 Joran Lundh Child safety gate

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee