US2611844A - Electromagnetically operable switch - Google Patents

Electromagnetically operable switch Download PDF

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Publication number
US2611844A
US2611844A US163372A US16337250A US2611844A US 2611844 A US2611844 A US 2611844A US 163372 A US163372 A US 163372A US 16337250 A US16337250 A US 16337250A US 2611844 A US2611844 A US 2611844A
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US
United States
Prior art keywords
bracket
base
electromagnetically operable
operable switch
switch
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
US163372A
Inventor
Bourne William George
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.)
Lucas Support Services Ltd
Original Assignee
Rotax Ltd
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 Rotax Ltd filed Critical Rotax Ltd
Application granted granted Critical
Publication of US2611844A publication Critical patent/US2611844A/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
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/20—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil
    • H01H50/22—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil wherein the magnetic circuit is substantially closed
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/20—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil

Definitions

  • This invention relates to electromagnetically operable switches, or contactors, for controlling electric circuits and has for its object to provide an improved construction enabling the electromagnet and the switch contacts to be readily removed for inspection, cleaning or repair.
  • Figure 1 is a sectional side elevation, Figure 2 a front elevation and Figure 3 a plan illustrating an embodiment of the invention.
  • an L-shaped bracket made from sheet metal or other convenient material, and comprising a pair of upright side members a and a base b.
  • the rear edges of the side members of the bracket are adapted to be secured to the rear side of a switch board or other support 0.
  • the base of the bracket is adapted to carry on its upper side an electromagnet of the solenoid type, comprising an iron frame (I and winding e.
  • the iron part it of the magnet is attached to a fiat base piece which can rest on the side of the base of the bracket and is formed at its inner edge with a pair of slots g which can be engaged with the underside of the heads of studs h extending from and secured to the base of the bracket. If desired a single slot may be provided, or more than two slots. Near its front edge the base piece I of the magnet is formed with one or a pair of holes through which a fixing screw or screws 1' can be inserted for engagement with the base of the bracket.
  • the axially slidable vertical core a of the magnet extends through a hole It in the base piece f of the magnet and also through an openended gap m in the base I) of the bracket, and at its lower end it is pivotally attached to a member 0 carrying the movable contacts 1) of the switch.
  • the said member 0 is situated beneath the base of the bracket and is suspended from the base piece of the magnet by a pair of guide rods q extending through the gap in the base of the bracket.
  • Springs 1- are mounted on the rods q for moving the contacts from the fixed contacts s.
  • the fixed contacts s are carried by a pair of bars t which are slidably attached in drawer-like manner by members it to guides 11 formed on or secured to the underside of the base I) of the bracket, and at the outer end of each bar 15 is formed or attached a lug w through which'can 5 be inserted a fixing screw :11 for engagement with the bracket.
  • the associated fixing screws 1 are released, and the unit can then be slid off the bracket.
  • the associated fixing screw as is released, leaving the said part free to be drawn out from the bracket.
  • the detachable and readily accessible mounting thereon of the magnet and the switch contacts can be effected in a very simple and convenient manner.
  • the invention is not, however, restricted to the embodiment above described, as by appropriate modification of construction the bracket may be adapted for the mounting thereon of any other form of electromagnetically operable switch comprising, for example, a single movable contact and a single fixed contact.
  • Switch mechanism comprising in combination a supporting bracket having a pair of side mem-- bers and an open base portion, an electromagnet having an armature, a base piece carried by said electromagnet and having an opening toallow passage of said armature therethrough, means detachably securing said base piece to said base portion and consisting in part of at leastone stud extending from one side of said base portion, said base piece having a slot in engagement with said stud, at least one contact carried by said armature and movable by said electromagnet, at least one stationary contact with which the movable contact can co-operate, and means detachably securing the stationary contact to said base portion and consisting in part of a guide on said base portion and a drawer like slide engaging said guide.

Description

Sept. 23, 1952 w. G. BOURNE ELECTROMAGNETICALLY OPERABLE swrrcu Filed May 22, 1950 2 SHEETSSHEET l Sept. 23, 1952 w. G. BOURNE ELECTROMAGNETICALLY OPERABLE SWITCH 2 SHEETS-SHEET 2 Filed May- 22, 1950 Patented Sept. 23, 1952 ELECTROMAGNETIC SWITCH William George Bourne, Acton,
assignor to Rotax Limited, London,
Application May 22, 1950,
In Great Britain May 27,
1 Claim.
This invention relates to electromagnetically operable switches, or contactors, for controlling electric circuits and has for its object to provide an improved construction enabling the electromagnet and the switch contacts to be readily removed for inspection, cleaning or repair.
In the accompanying drawings:
Figure 1 is a sectional side elevation, Figure 2 a front elevation and Figure 3 a plan illustrating an embodiment of the invention.
Referring to the drawings, there is employed ALLY OPERABLE London, England,
England Serial No. 163,372
an L-shaped bracket made from sheet metal or other convenient material, and comprising a pair of upright side members a and a base b. The rear edges of the side members of the bracket are adapted to be secured to the rear side of a switch board or other support 0. The base of the bracket is adapted to carry on its upper side an electromagnet of the solenoid type, comprising an iron frame (I and winding e.
The iron part it of the magnet is attached to a fiat base piece which can rest on the side of the base of the bracket and is formed at its inner edge with a pair of slots g which can be engaged with the underside of the heads of studs h extending from and secured to the base of the bracket. If desired a single slot may be provided, or more than two slots. Near its front edge the base piece I of the magnet is formed with one or a pair of holes through which a fixing screw or screws 1' can be inserted for engagement with the base of the bracket.
The axially slidable vertical core a of the magnet extends through a hole It in the base piece f of the magnet and also through an openended gap m in the base I) of the bracket, and at its lower end it is pivotally attached to a member 0 carrying the movable contacts 1) of the switch. The said member 0 is situated beneath the base of the bracket and is suspended from the base piece of the magnet by a pair of guide rods q extending through the gap in the base of the bracket. Springs 1- are mounted on the rods q for moving the contacts from the fixed contacts s.
The fixed contacts s are carried by a pair of bars t which are slidably attached in drawer-like manner by members it to guides 11 formed on or secured to the underside of the base I) of the bracket, and at the outer end of each bar 15 is formed or attached a lug w through which'can 5 be inserted a fixing screw :11 for engagement with the bracket.
When it is desired to remove the unit comprising the magnet and the movable contacts, the associated fixing screws 1 are released, and the unit can then be slid off the bracket. Likewise when it is required to remove either of the parts t carrying the fixed contacts, the associated fixing screw as is released, leaving the said part free to be drawn out from the bracket.
By means of the invention the detachable and readily accessible mounting thereon of the magnet and the switch contacts can be effected in a very simple and convenient manner. The invention is not, however, restricted to the embodiment above described, as by appropriate modification of construction the bracket may be adapted for the mounting thereon of any other form of electromagnetically operable switch comprising, for example, a single movable contact and a single fixed contact.
Having thus described my invention what I claim as new and desire to secure by Letters Patent is:
Switch mechanism comprising in combination a supporting bracket having a pair of side mem-- bers and an open base portion, an electromagnet having an armature, a base piece carried by said electromagnet and having an opening toallow passage of said armature therethrough, means detachably securing said base piece to said base portion and consisting in part of at leastone stud extending from one side of said base portion, said base piece having a slot in engagement with said stud, at least one contact carried by said armature and movable by said electromagnet, at least one stationary contact with which the movable contact can co-operate, and means detachably securing the stationary contact to said base portion and consisting in part of a guide on said base portion and a drawer like slide engaging said guide.
WILLIAM GEORGE BOURNE.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS
US163372A 1949-05-27 1950-05-22 Electromagnetically operable switch Expired - Lifetime US2611844A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB14219/49A GB660493A (en) 1949-05-27 1949-05-27 Improvements relating to electromagnetically operable switches

Publications (1)

Publication Number Publication Date
US2611844A true US2611844A (en) 1952-09-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
US163372A Expired - Lifetime US2611844A (en) 1949-05-27 1950-05-22 Electromagnetically operable switch

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US (1) US2611844A (en)
GB (1) GB660493A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1140264B (en) * 1958-01-15 1962-11-29 Siemens Ag Luftschuetz

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2172633A (en) * 1939-09-12 Electric switch
US2232625A (en) * 1938-12-27 1941-02-18 Allis Chalmers Mfg Co Electric switch
US2394090A (en) * 1943-11-11 1946-02-05 Gen Electric Electric switch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2172633A (en) * 1939-09-12 Electric switch
US2232625A (en) * 1938-12-27 1941-02-18 Allis Chalmers Mfg Co Electric switch
US2394090A (en) * 1943-11-11 1946-02-05 Gen Electric Electric switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1140264B (en) * 1958-01-15 1962-11-29 Siemens Ag Luftschuetz

Also Published As

Publication number Publication date
GB660493A (en) 1951-11-07

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