US3508182A - Readily replaceable electromagnet - Google Patents

Readily replaceable electromagnet Download PDF

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Publication number
US3508182A
US3508182A US703436A US3508182DA US3508182A US 3508182 A US3508182 A US 3508182A US 703436 A US703436 A US 703436A US 3508182D A US3508182D A US 3508182DA US 3508182 A US3508182 A US 3508182A
Authority
US
United States
Prior art keywords
electromagnet
spool
core
readily replaceable
coil
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
US703436A
Other languages
English (en)
Inventor
Andrew R Lang
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.)
Unisys Corp
Original Assignee
Burroughs Corp
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 Burroughs Corp filed Critical Burroughs Corp
Application granted granted Critical
Publication of US3508182A publication Critical patent/US3508182A/en
Assigned to BURROUGHS CORPORATION reassignment BURROUGHS CORPORATION MERGER (SEE DOCUMENT FOR DETAILS). DELAWARE EFFECTIVE MAY 30, 1982. Assignors: BURROUGHS CORPORATION A CORP OF MI (MERGED INTO), BURROUGHS DELAWARE INCORPORATED A DE CORP. (CHANGED TO)
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C7/00—Input mechanisms
    • G06C7/02—Keyboards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers

Definitions

  • the invention resides in the provision of an electromagnet in which the core and coil are rigidly held together by a snap-acting latch member which is readily releasable to remove the coil for replacement without need of removing the core, thus avoiding the need for disassembling the supporting structure for the electromagnet.
  • FIG. 1 is a fragmentary plan view of a device embodying features of the invention
  • FIG. 2 is a vertical sectional view partly in elevation, taken along the line 22 of FIG. 1;
  • FIG. 3 is an exploded perspective view of the electromagnet
  • FIG. 4 is a perspective view of an electromagnet.
  • a supporting structure for a row of solenoids 12 preferably comprises a pair of end plates 14 and a plurality of intermediate plates 16 rigidly secured together by parallel rods 18.
  • the plates 16 are spaced apart and are spaced from the end plates 14 by suitable tubular spacer members.
  • An additional rod 22 extends through and is supported by the plates 14 and 16 and above and otIset from the rod 22 there is a stationary shaft 24 which also extends through and is supported by the plates.
  • a plurality of supporting members 26 are provided for individually supporting the electromagnets 12 and are in turn mounted on the stationary shaft 22 and the rod 24, as illustrated in FIG. 2. Suitable spacers 28 on the shaft 22 and on the rod 24 hold the supporting members rigidly in spaced apart relationship.
  • An armature or clapper 30 is provided for each of the electromagnets 12 and has downwardly directed side flanges 32 pivotally mounted on the stationary shaft 22, the clappers each overlying the upper ends of their respective electromagnets 12. Pivoted on the shaft 22 there is a lever 36 for each of the clappers 30, the levers being pivoted at their upper ends respectively between the flanges 32 of the clappers 30, as shown in FIG. 1.
  • levers 36 are biased counterclockwise by springs 38 which have one end connected to the lower end of the lever 36 and the other end anchored to the supporting member 26.
  • Another spring 40 connects the lever 36 to one of the side flanges 32 of the clapper 30.
  • each of the clappers 30 there is an amount rack 42, the amount racks extending longitudinally of the clappers, as shown.
  • Each of the amount racks 42 is provided on its lower edge with a plurality of notches or teeth which represent positions in which the racks may be stopped by the clappers 30.
  • the positions in which the racks 42 are stopped by the clappers 30 represent amounts which may be printed and also may be stored in a register (not shown).
  • I provide an electromagnet in which the coil is readily separable from the core.
  • I form the supporting member 26 such that it has a U-shaped portion comprising up-- standing legs 44 and 46 joined by a horizontal web 48.
  • the leg 46 serves as the core and a tubular spool 50 is readily slid down onto the core 46, the core being of sufficient length to project slightly above the spool for engagement by the clapper 30.
  • the spool 50 has upper and lower end flanges 52 and 54 respectively to retain the required coil winding 56 therebetween.
  • the spool may be made of any suitable non-magnetic material, such as a suitable plastic material.
  • a plastic sheet 60 which rests on a seat 62 provided by the upper edge of the Web 48, and carried by the spool 50 there is a depending latch member 64.
  • the latch member is formed out of the sheet 60 which is a resilient plastic material so as to provide a resilient latch member which will flex laterally when its cam end portion 66 engages the seat 62 as the electromagnet is pressed downward.
  • the cam 66 clears the lower edge 68 of the web, the latch member 64 will snap into place under such edge which thus functions as a keeper.
  • a mounting plate having a magnetic leg to function as a magnetic core, a web joining said leg to the plate proper, a seat on said web laterally of said leg and defining a U-shape with the opposed edges of said leg and the plate proper, a coil wrapped spool structurally independent of and surrounding said leg, a resilient pad aflixed to one end of said spool and apertured to receive said leg, said resilient pad resting on said seat, a latch keeper on the edge of said web opposite said seat, and a resilient latch member carried by said resilient pad offset from the aperture and operable to snap into latching relationship with said keeper by and upon pressing said spool against said seat.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electromagnets (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
US703436A 1968-02-06 1968-02-06 Readily replaceable electromagnet Expired - Lifetime US3508182A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70343668A 1968-02-06 1968-02-06

Publications (1)

Publication Number Publication Date
US3508182A true US3508182A (en) 1970-04-21

Family

ID=24825382

Family Applications (1)

Application Number Title Priority Date Filing Date
US703436A Expired - Lifetime US3508182A (en) 1968-02-06 1968-02-06 Readily replaceable electromagnet

Country Status (5)

Country Link
US (1) US3508182A (ro)
BE (1) BE727941A (ro)
DE (1) DE1904867A1 (ro)
FR (1) FR1600102A (ro)
GB (1) GB1265352A (ro)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549540B1 (fr) * 1983-07-21 1985-10-11 Ducellier & Cie Bobine d'allumage pour moteur a combustion interne

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513965A (en) * 1946-08-20 1950-07-04 Gen Electric Coil retaining means
US2917600A (en) * 1958-04-17 1959-12-15 American Mach & Foundry Electromagnetic relays
US3036246A (en) * 1958-08-18 1962-05-22 Comar Electric Company Solenoid insert bobbin
US3134467A (en) * 1961-09-26 1964-05-26 Illinois Tool Works Transformer mounting clip and assembly
US3191135A (en) * 1963-04-15 1965-06-22 Honeywell Inc Self-mounting electrical apparatus
US3238485A (en) * 1963-08-23 1966-03-01 Automatic Elect Lab Bobbin and core assembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513965A (en) * 1946-08-20 1950-07-04 Gen Electric Coil retaining means
US2917600A (en) * 1958-04-17 1959-12-15 American Mach & Foundry Electromagnetic relays
US3036246A (en) * 1958-08-18 1962-05-22 Comar Electric Company Solenoid insert bobbin
US3134467A (en) * 1961-09-26 1964-05-26 Illinois Tool Works Transformer mounting clip and assembly
US3191135A (en) * 1963-04-15 1965-06-22 Honeywell Inc Self-mounting electrical apparatus
US3238485A (en) * 1963-08-23 1966-03-01 Automatic Elect Lab Bobbin and core assembly

Also Published As

Publication number Publication date
BE727941A (ro) 1969-07-16
GB1265352A (ro) 1972-03-01
DE1904867A1 (de) 1969-09-25
FR1600102A (ro) 1970-07-20

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Legal Events

Date Code Title Description
AS Assignment

Owner name: BURROUGHS CORPORATION

Free format text: MERGER;ASSIGNORS:BURROUGHS CORPORATION A CORP OF MI (MERGED INTO);BURROUGHS DELAWARE INCORPORATEDA DE CORP. (CHANGED TO);REEL/FRAME:004312/0324

Effective date: 19840530