US1967122A - Automatic installation switch - Google Patents

Automatic installation switch Download PDF

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Publication number
US1967122A
US1967122A US544627A US54462731A US1967122A US 1967122 A US1967122 A US 1967122A US 544627 A US544627 A US 544627A US 54462731 A US54462731 A US 54462731A US 1967122 A US1967122 A US 1967122A
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US
United States
Prior art keywords
toggle
spring
arm
switch
arms
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
US544627A
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English (en)
Inventor
Horst Adam
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.)
Firm Voigt & Haeffner A G
Firm Voigt & Haeffner A-G
Original Assignee
Firm Voigt & Haeffner A G
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 Firm Voigt & Haeffner A G filed Critical Firm Voigt & Haeffner A G
Application granted granted Critical
Publication of US1967122A publication Critical patent/US1967122A/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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/58—Manual reset mechanisms which may be also used for manual release actuated by push-button, pull-knob, or slide

Definitions

  • the invention solves this problem.
  • Fig. 1 shows the automatic installation switch in elevation partly in section.
  • Fig. 2 is a similar view to Fig. 1, the elements being shown in the switching in position.
  • Fig. 3 is a top plan view of Fig. 1, the cap being removed. 1 4
  • Fig. 4 shows in elevation a stationary and a rotatable contact body.
  • Figs. 5 and 6 show in elevation partly in section a modified automatic switch in two switch- 1 ing positions.
  • the actuating and locking mechanism is a simple togglep It consists of only two arms 1 and 2 arranged between two plates 3 and 4. Each plate 3, 4 has two guide slots 5 and 6 which are preferably straight.
  • the arms 1 and 2 of the toggle are hingedly connected the one to the other by a pivot pin .7.
  • a pin 8 of the arm 1, near the upper end of the same, engages with the slots 6 of the plates 3 and 4, a pin 9 of the arm 2 engaging with the slots 5 of these plates.
  • a spiral spring 10 attached to the arm-2 has the tendency to shift the pins 9 and 8 of the toggle 1, 2 upwards in the guide slots 5 and 6.
  • the arm 2 has an abutment 20. designed to prevent collapsing of the arms 1 and 2 of the toggle in one direction through the influence of the spiral spring 10. The provision of the abutment renders the toggle self locking.
  • An overload magnet connected in a manner known per se, not shown in the drawings, is accommodated in the base 12 of the switch consisting of insulating mateinsulating material.
  • top plate of the switch case is adapted to actrial e.g. porcelain. Only the armature 13, which is pulled upwards in the case of ashort circuitlike excess current occurring, is visible in the drawings.
  • the arm 2 of the toggle has a nose 222 against which the armature l3 strikes when it ascends due to overload.
  • An elbow lever 14 is oscillatably mounted between the plates 3 and 4 by means of an axle 15.
  • a spiral spring 16 acting upon the rear arm of the elbow lever 14 tends to oscillate this lever in anticlockwise direction so that the inner arm of said elbow lever is thrown against the toggle 1, 2, which is thus collapsed.
  • a thermostat 17 serves to lock the arm of the elbowlever 14 to which the spring 16 is attached.
  • This thermostat 17 consists for example of a bimetallic blade spring which is heated by the current of the switch circuit.
  • the bimetallic strip 1'7 may be slotted as is usual in the art so that it is U'-shaped, one of the arms serving for leading-in and the other arm serving for leading-off the heating current.
  • the end of the bimetallic strip 17 cooperating with the elbow lever 14. carries a small element 17a made of If this current assumes during a longer time an inadmissibly high value the bimetallic spring 1'7 bends to the right so far that the elbow lever 14 is liberated and moves in anticlockwise direction under the action of the pull spring 16 so that its end strikes against the toggle, 1, 2 and collapses the same.
  • the lower end 6a of the guide slots 6 for the pin 8 is at right angles to the other-portion of the slots so that the pin 8 and through the same the toggle can be securely held in opposition to g the pull exerted by the spiral spring 10 on the arm 2 of the toggle.
  • One end of a spring 18 wound around the pin 8 bears against the inner wall of the push knob 11, the other spring end bearing against the lever 1.
  • This spring 18 serves to return the toggle 1, 2 into its initial position when it has been bent by the action of the armature 13, the angle lever 14 or any other means.
  • the toggle 1, 2 may be collapsed by hand by depression of a push knob 19, which is shiftable in opposition to a spring 190..
  • the knob or push button 19 when depressed actuates a spring 1912 adapted to turn a nose 1a of the toggle arm 1 so that this toggle is collapsed.
  • Rotatable bodies 20 forming the movable contact pieces of the switch are mounted on the ends of pin 9 and cooperate with stationary contact pieces 21 having an inclined surface on which the contact pieces 20 can roll. The contact between the contact pieces-20 and 21 is right.
  • the contact pieces 20 may be any solid of revolution e. g. rollers.
  • The. switch is shown in Fig. 1 in the open position in which the two bolts 8 and 9 are on the upper end of the straight guide slots 6 and 5.
  • the arms 1, 2 of the toggle are shifted downwards parallel in opposition to the action of the spring 10.
  • This spring 10 has the tendency to collapse the toggle so that its hinge 7 would move to the The toggle 1, 2 can however not collapse in this direction as this is prevented by the abutment 2a.
  • the bolt 8 arrives .at the lower end of the slots 6 it is subjected to two components of force, one due to spring 10 which tends to shift it to the right, and another due to spring 18 which tends to shift it to the' left.
  • cam pieces on the push knob 11 may be provided by which a force component, directed to-- wards the right, of the force which moves the push knob 11 downwards is exerted upon the bolt 8. 'When the bolt 8 has jumped into the notch 6a, the switch is in the closed position. In this position the contact pieces 20 and 21 touch each other and the nose 1a engages under the spring 19b. 7
  • Fig. 2 the switch is shown in the closed position.
  • the releasing can be eifected in three different manners, i. e.'by hand by depressing the push knob 19, electromagnetically by means of the armature 13, and thermally by shifting to .the right of the bimetallic strip 1'7.
  • the push knob 19 If the push knob 19 isdepressed, the nose 1a turns in clockwise direction, the toggle 1, 2 collapses, and the contact pieces 20 are pulled upwards by the action of the spring 10. Substantially the same eifect occurs if the armature 13 turns the nose 2b in anticlockwise direction around the pin 9. If the bimetallic strip shifts towards the right, the angle lever 14 can move under the action of theforce of the spring 16.
  • switch the combination of a simple toggle, an abutment preventing collapsing of said toggle in one direction, a return pull spring for the collapsed toggle, members providing guide paths for the toggle, and a push button adapted to shift said toggle along its guide paths, a second spring acting on said toggle and tending to move the same to the one end of its guide paths, notches in said guide paths adapted to securely hold slots, two pins each one extending through one arm of said toggle, the ends of said pins guided in said guide slots of said plates, a spring acting, on one of said toggle arms adapted to shift said pins of said toggle arms in one direction in said guide slots, a pushbutton adapted to act 1215 upon the top end of one of said toggle arms and to shift said toggle arms in opposition to the force of said spring in the other-direction, an abutment adapted to prevent collapsing of said toggle under the action of the force of said In spring in one direction, overload releasing means adapted to collapse the toggle in the other direction, an end
  • a toggle-driving and lockingdevice consisting of only two toggle arms, two plates between which said toggle arms are arranged said plates having guides, a pin on 1 each of said toggle arms guided by the corresponding guide, movable contact members on one of saidpins, an end of the guide slots of one" set extending substantially at right angles to said slots and adapted to lock the correspond- 1 ing pin, a spring adapted to shift said pins and said toggle arms .
  • said guides in one direction
  • an actuating element adapted to shift said toggle arms in opposition to the action of said spring in the other direction and to make one of said pins engage in the ends of said guide slots bent substantially at right angles
  • an abutment adapted to prevent collapsing of said toggle in one direction under the action of said spring
  • overload releasingmeans adapted to collapse said toggle in the other direction
  • a return. pull spring for returning the collapsed toggle into its initial position.
  • a toggle-driving and lockingdevice consisting of only two toggle arms, pins one on each of said toggle arms, members providing straight guides for said pins, rotatable contact members mounted on the ends of one of said pins, stationary contact members adapted to cooperate with said movable contact members and forming inclined surfaceson which said movable contact members roll, an end of each guide for the other of said pins being curved susbtantially at right angles to said straight guides and adapted to lock said pin, a spring attached to one of said toggle arms and adapted to shift the toggle pins in said straight guides in one direction, an actuating element adapted to shift said toggle pins in opposition to the action of said spring in the other direction, an abutment a dapted to prevent collapsing of said toggle in one direction under the action of said spring, overload releasing elements adapted to collapse said toggle in the other direction, and a return pull spring acting on one armof said toggle and adapted to return the collapsed toggle into its former position.
  • a push button adapted to move said toggle along its guide paths, a second spring acting upon 'one arm of said toggle and tending to collapse said toggle and to shift the same to the one end of its guide paths, elbow notches in said guide paths for one arm of said toggle adapted to securely hold said toggle in its position in opposition to the force of said second spring, a nose on one arm of said toggle, an overload releasing element acting upon said nose, said nose adapted to collapse said toggle,
  • a nose on the other toggle arm and a second push button adapted to act upon said nose and to collapse said toggle.
  • an automatic installation switch the combination of a simple toggle, an abutment adapted to prevent collapsing of said toggle in one direction, a return spring adapted to return the collapsed toggle into its initial position, members providing guide paths for said toggle and a push button adapted to move said toggle along its guide paths, a second spring acting upon one arm of said toggle and tehding'to collapse said toggle and to shift the same to the one end of its guide paths, elbow notches in said guide paths for one arm of said toggle adapted-to securely hold said toggle in its position in opposition to the force of said second spring, a nose on one arm of said toggle, an overload magnet armature adapted to collapse said toggle, a nose on the other arm of said toggle, a second push button adapted to act upon said nose and to collapse said toggle, an angle lever, a, spring acting on said angle lever adapted to press one of the arms of said angle lever against said toggle, a thermalv overload releasing element adapted to securely hold the other arm of said angle lever, and an
  • an automatic installation switch the combination of a simple toggle, an abutment adapted to prevent collapsing of said toggle in one direction, a return spring adapted to return the collapsed toggle into its initial position, members providing guide paths for said toggle, and a push button adapted to move said toggle along its guide paths, a second spring acting upon one arm of said toggle and tending to collapsesaid toggle and to shift the same to the one end of its guide paths, elbow notches in said guide paths for one arm of said toggle adapted to securely hold said toggle in its position in opposition to the force of said second mentioned spring, a nose on one arm of said toggle, an overload magnet armature cooperating with said nose and adapted to collapse said toggle, a nose on the other arm of said toggle, a second push button adapted to act upon said nose and to collapse said toggle, an angle lever,
  • an actuating and locking device which consists of two arms forming a toggle, members at both sides of the toggle forming guide paths in which the toggle may be shifted
  • a non-closable'switch comprising a simple toggle, a push button arranged at one end of the toggle for shifting the toggle as a unit to close the switch, detent means for engaging the opposite end of the toggle to hold it in closed position, release means for breaking the toggle and means operative upon breaking of said toggle to reset the toggle.
  • a non-closable switch comprising a simple toggle, a push button arranged at one end of the toggle for shifting the toggle as a unit to close the switch, detent means for engaging the opposite end of the toggle to hold it in closed position, release means for breaking the toggle; and means operative upon breaking of said toggle to reset the toggle.
  • a non-closable switch comprising a pair of arms forming a toggle, a push button for shifting the toggle as a unit, a pair of plates between which said toggle is arranged, pins pasing through the arms of said toggle and engaging guide slots in said plates to guide said toggle in its shifting movement and notches arranged at the end of certain of said guide slots to lock the toggle in shifted position.

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  • Switch Cases, Indication, And Locking (AREA)
  • Breakers (AREA)
US544627A 1930-06-21 1931-06-15 Automatic installation switch Expired - Lifetime US1967122A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE537706T 1930-06-21

Publications (1)

Publication Number Publication Date
US1967122A true US1967122A (en) 1934-07-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
US544627A Expired - Lifetime US1967122A (en) 1930-06-21 1931-06-15 Automatic installation switch

Country Status (2)

Country Link
US (1) US1967122A (de)
DE (1) DE537706C (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2701829A (en) * 1951-08-03 1955-02-08 Cutler Hammer Inc Manually operable circuit breaker
US20080110737A1 (en) * 2006-11-14 2008-05-15 Chun-Hsien Chen Trigger Device Used In A Palmtop Computer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE932438C (de) * 1952-09-02 1955-09-01 Wilhelm Leyhausen Elektrischer Kleinselbstschalter
BE538891A (de) * 1954-06-10
DE2749257C3 (de) * 1977-11-03 1981-05-07 Siemens AG, 1000 Berlin und 8000 München Schaltschloß eines elektrischen Schalters

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2701829A (en) * 1951-08-03 1955-02-08 Cutler Hammer Inc Manually operable circuit breaker
US20080110737A1 (en) * 2006-11-14 2008-05-15 Chun-Hsien Chen Trigger Device Used In A Palmtop Computer
US8134430B2 (en) * 2006-11-14 2012-03-13 Unitech Electronics Co., Ltd. Trigger device used in a palmtop computer

Also Published As

Publication number Publication date
DE537706C (de) 1931-11-05

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