GB1175997A - Electric Pressure-Controlled Snap Switch. - Google Patents

Electric Pressure-Controlled Snap Switch.

Info

Publication number
GB1175997A
GB1175997A GB3149567A GB3149567A GB1175997A GB 1175997 A GB1175997 A GB 1175997A GB 3149567 A GB3149567 A GB 3149567A GB 3149567 A GB3149567 A GB 3149567A GB 1175997 A GB1175997 A GB 1175997A
Authority
GB
United Kingdom
Prior art keywords
spring
snap
control lever
contact
pressure
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
GB3149567A
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.)
PATINVEST PATENT-UND INVESTMENT AG
Patinvest Patent und Investment AG
Original Assignee
PATINVEST PATENT-UND INVESTMENT AG
Patinvest Patent und Investment AG
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 PATINVEST PATENT-UND INVESTMENT AG, Patinvest Patent und Investment AG filed Critical PATINVEST PATENT-UND INVESTMENT AG
Publication of GB1175997A publication Critical patent/GB1175997A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/0015—Hanging grinding machines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

1,175,997. Fluid actuation of switches; snap-action switches. PATINVEST PATENTUND INVESTMENT A.G. 7 July, 1967 [12 July, 1966], No. 31495/67. Heading H1N. An electric pressure-controlled snap switch having at least one contact spring 10 projecting between fixed contacts 13, 14 and the operation of which may be controlled by the movements of an element which is subjected to the pressure of a liquid or gas and then acts on an intermediate control lever 5 which is connected to contact spring 10 by a snap spring 17 and is also acted on by an adjusting spring 6 has the bearing points 18, 19 for snap spring 17 disposed relative to the pivot arms 26 of control lever 5 so that the torque M s exerted by snap spring 17 on the control lever is opposed at least within the area adjacent to the snap-over points to the torque M, exerted by adjusting spring 6 on control lever 5. Torque M s equals the product of snap spring pressure S and distance b. Torque M j equals the product of adjusting spring pressure J and distance a. Pressure from a diaphragm is applied by a tappet at D on control lever 5. The strength of spring 6 may be adjusted by a set-screw. A graph is given (Fig. 6, not shown) for M s , M j, M s + M j for high and low initial tension of spring 6 against distance of travel of control lever 5. The position of fixed contact 13 may be adjusted by a set-screw. Contact spring 10 is highly elastic at least between contact 11 and bearing 18 to assist the snap-action, and to have a cleaning and anti-chattering effect on the contacts. The snap spring may be a coil spring or barrel spring. The switch described is a three-phase switch having one diaphragm actuating three switch systems each comprising a contact spring, a pair of associated fixed contacts and a control lever and adjacent switch systems are disposed in reversed positions to each other.
GB3149567A 1966-07-12 1967-07-07 Electric Pressure-Controlled Snap Switch. Expired GB1175997A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP0039931 1966-07-12

Publications (1)

Publication Number Publication Date
GB1175997A true GB1175997A (en) 1970-01-01

Family

ID=7376816

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3149567A Expired GB1175997A (en) 1966-07-12 1967-07-07 Electric Pressure-Controlled Snap Switch.

Country Status (4)

Country Link
CH (1) CH457588A (en)
GB (1) GB1175997A (en)
NL (2) NL6708678A (en)
SE (1) SE328049B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2287128A (en) * 1994-03-03 1995-09-06 M & G Tankers & Trailers Ltd Fluid operated switch
EP1494253A1 (en) * 2003-07-03 2005-01-05 Barksdale, Inc. Adjustable snap action switch

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1217480A (en) * 1968-06-18 1970-12-31 Patinvest Electric pressure-controlled snap switch
CN103447269A (en) * 2013-09-04 2013-12-18 大连市旅顺钢模板修复机设备厂有限公司 Wire brush device for surface treatment of workpiece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2287128A (en) * 1994-03-03 1995-09-06 M & G Tankers & Trailers Ltd Fluid operated switch
EP1494253A1 (en) * 2003-07-03 2005-01-05 Barksdale, Inc. Adjustable snap action switch

Also Published As

Publication number Publication date
CH457588A (en) 1968-06-15
NL60805C (en)
NL6708678A (en) 1968-01-15
DE1665332A1 (en) 1970-12-03
DE1665332B2 (en) 1975-08-21
SE328049B (en) 1970-09-07

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees