US1351161A - Switch - Google Patents

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Publication number
US1351161A
US1351161A US275644A US27564419A US1351161A US 1351161 A US1351161 A US 1351161A US 275644 A US275644 A US 275644A US 27564419 A US27564419 A US 27564419A US 1351161 A US1351161 A US 1351161A
Authority
US
United States
Prior art keywords
switch
roller
lever
locking device
base
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 - Lifetime
Application number
US275644A
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English (en)
Inventor
Fagerlund Erik Artur
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
Application granted granted Critical
Publication of US1351161A publication Critical patent/US1351161A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01H13/68—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having two operating members, one for opening and one for closing the same set of contacts
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/18—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance
    • H03B5/1817—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a cavity resonator
    • H03B5/1835—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a cavity resonator the active element in the amplifier being a vacuum tube

Definitions

  • This invention relates particularly to that type of electric switch suitable for lighting installations, in which the movable contact member is a swing lever or the like co-acting with a resilient locking device, the said swing lever being operated either by push buttons, ordirectly by a handle attached to the contact member, or in some other suitable way.
  • the resilient locking device consists of a spring actuated roller or the like which, when operated by the contact member, moves rapidly to one or the other side of a projection co-acting with the roller.
  • the object of thepresent invention is to provide a construction of the locking device which lends itself to a simple method of manufacturing.
  • the axle of the roller is made in the form of a flexible pin journaled at both ends in fixed bearings, so that the axle of the roller serves at the same time as a spring for the locking device.
  • the construction of the switch is simplified to a great extent as compared with switches of this type previously known in which the roller is usually mounted so as to be moved in a guide being actuated by a helical spring, said guide as well as the separate spring being dispensed with in the present construction whereby also a saving of space is attained.
  • FIG. 1 illustrates a push button switch provided with a resiliout locking device according to the invention.
  • Figures 1 and 2 show the switch in sectional and plan views respectively the cover and the swing lever being removed in Fig. 2.
  • the switching member of the switch consists of a swing lever 1 pivotally mounted on a pin 2 journaled in two lugs 5 projecting from a plate 4 screwed to the switch base 3.
  • the lever 1 in the known manner closes the contact between two connection contacts 6 and 7 screwed to the switch base, and is Specification of Letters Patent.
  • Patent d A 31 1920. Application filed February '7. 1919.
  • the lever 1 is maintained in the closing position shown by the friction between the contact pieces and also by the resilient locking device 1 1. lVhen pushing the breaking button 10 the swing lever is at first moved against the action of the locking device 141, 15 and then through the influence of this locking device into the breaking position in which it is retained, the arm 11 being then situated on the opposite side of the roller 14. The movement of the swing lever is limited by a projection 16 fixed to the switch base.
  • an electric switch the combination with a base provided with a recess having opposed notches in the side walls thereof, an apertured plate secured to the base, a contact lever pivoted above the plate, and cooperative means for locking the lever with respect to the base including a flexible pin journaled in the notches, a roller carried by the pin and positioned in the recess and an arm carried by the lever medially of the ends for coacting with the flexibly and rotatably mounted roller.

Landscapes

  • Manufacture Of Switches (AREA)
  • Road Paving Machines (AREA)
  • Push-Button Switches (AREA)
US275644A 1919-02-07 1919-02-07 Switch Expired - Lifetime US1351161A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE27564419X 1919-02-07

Publications (1)

Publication Number Publication Date
US1351161A true US1351161A (en) 1920-08-31

Family

ID=37989838

Family Applications (1)

Application Number Title Priority Date Filing Date
US275644A Expired - Lifetime US1351161A (en) 1919-02-07 1919-02-07 Switch

Country Status (3)

Country Link
US (1) US1351161A (enrdf_load_stackoverflow)
DE (1) DE321412C (enrdf_load_stackoverflow)
GB (1) GB132224A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467939A (en) * 1946-04-08 1949-04-19 Bisset Ind Ltd Snap action electric switch
US2969442A (en) * 1958-07-30 1961-01-24 Gen Electric Detent mechanism for alternating current switch
US3055630A (en) * 1959-02-26 1962-09-25 Lyman E Becker Push button actuators for flush valves
EP0388085A3 (en) * 1989-03-17 1991-10-02 Shinkoh Electric Co., Ltd. A push-button switch having an interlocking device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467939A (en) * 1946-04-08 1949-04-19 Bisset Ind Ltd Snap action electric switch
US2969442A (en) * 1958-07-30 1961-01-24 Gen Electric Detent mechanism for alternating current switch
US3055630A (en) * 1959-02-26 1962-09-25 Lyman E Becker Push button actuators for flush valves
EP0388085A3 (en) * 1989-03-17 1991-10-02 Shinkoh Electric Co., Ltd. A push-button switch having an interlocking device

Also Published As

Publication number Publication date
DE321412C (de) 1920-06-02
GB132224A (enrdf_load_stackoverflow)

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