US1650799A - Electric solenoid - Google Patents

Electric solenoid Download PDF

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Publication number
US1650799A
US1650799A US714136A US71413624A US1650799A US 1650799 A US1650799 A US 1650799A US 714136 A US714136 A US 714136A US 71413624 A US71413624 A US 71413624A US 1650799 A US1650799 A US 1650799A
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United States
Prior art keywords
tube
guide
plate
solenoid
plug
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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
US714136A
Inventor
Thomas L Lee
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.)
NORTH EAST ELECTRIC Co
Original Assignee
NORTH EAST ELECTRIC CO
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.)
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Publication date
Application filed by NORTH EAST ELECTRIC CO filed Critical NORTH EAST ELECTRIC CO
Priority to US714136A priority Critical patent/US1650799A/en
Application granted granted Critical
Publication of US1650799A publication Critical patent/US1650799A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding

Definitions

  • the object of this invention is to produce an electric solenoid magnet of compact and efficient form, with a structure which is inexpensive, easy to assemble, and yet rugged.
  • Fig. 1 is a cross-section of a solenoid embodying the present invention on the line 11 in Fig. 2, and Fig. 2 is a longitudinal section of the same.
  • the illustrated embodiment of the invention comprises a base-plate 5, of sheet steel or iron, provided with perforated lugs 6 by which it maybe attached wherever the solenoid is to be used.
  • the base-plate together with a cup-shaped shell 7, also of steel or iron, constitute a housing for the other parts of the solenoid. To secure these members together, and toprovide also a.
  • the base-plate is centrally perforated and provided with an integral neck 8 in which one end of a central guide-tube 9 is fitted, the end of the tube being flanged over as shown.
  • the guide-tube is of brass or other non-magnetic material.
  • a plug 10 of iron or steel which is grooved circumferentially and is fixed in place in the tube by a head 11, in the wall of the tube, pressed or rolled into the groove.
  • This plug is engaged by a screw 12, passing through the 1shell 7, and through a plate 13 of iron or stee
  • the winding 14 of the solenoid is enclosed within the shell.
  • the armature or plunger 15 slides within the guide-tube, and is provided, at the top, with a bufi'er life-of nonmagnetic material.
  • a spring 17, seated in perforations in the plug 10 and the plunger, tends to move the plun er in the opposite direction to that in whic it moves when the solenoid isenergized.
  • the plunger may be connected, as by a rod 18, with any part or device which is to be actuated by it.
  • an magnetic circuit is provided through the base, the shell, the plug 10 and the plunger.
  • the plate 13 is used to increase the permanence of the circuit at a point where the crosssectional area of the metal would otherwise be relatively small.
  • the neck 8 on the baseplate serves to reduce the reluctance at the gap between the base and the plunger, and also to provide an extended support for the guide-tube.
  • the assembling of the solenoid is simple, as all of the parts go together loosely, and are then drawn into firm engagement by the single screw at the top.
  • a solenoid comprising: a centrally perforated plate of magnetic material; a guide tube, of non-magnetic material, outwardly flanged at one end and closed, at the other end, by a plug of magnetic material fixed to the guide-tube, the guide-tube being seated, at its flanged end, in the perforation in said plate; a winding surrounding the guide tube; a cup-shaped shell, of magnetic material, enclosing the winding and resting, at its edge, against said plate; and screwthreaded means connecting the closed end of the shell with said plug in the guide-tube, whereby the shell and the base-plate are secured together through the agency of the plug and the guide-tube.
  • a solenoid comprising: a base-plate with a central opening and integral neck at said opening; a guide-tube seated in and secured to said neck, said tube being of nonmagnetic material; a plug, of magnetic material, fixed in the end of the guide-tube re mote from the base-plate; a winding surrounding the guide-tube; a cup-shaped shell of magnetic material, enclosing the winding; and a screw passing through the closed end of the shell and threaded into said plug, whereby the shell and the base-plate aresecured together through the agency of the plug and the guide-tube.

Description

Nov. 29, 1 27. 1,650,799
T. L. LEE 7 ELECTRIC SOLENOIDS Filed May 1924 Eng IL Fig 21 llnvcemtqm,
Emmi-I Patented Nov. 29, 192?.
THOMAS L. LEE, 0E RQCHESTER, NEW YQRK, ASSIGNOR TO NORTH EAST ELECTRIC COMPANY, 016 ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.
nnnornrc sonnnorn.
Application filed May 17, 1924. Serial No. 714,136.
The object of this invention is to produce an electric solenoid magnet of compact and efficient form, with a structure which is inexpensive, easy to assemble, and yet rugged.
To the foregoing end the invention consists in the solenoid illustrated in the accompany ing drawings and hereinafter described, as it is defined in the attached claims.
Tn the drawings Fig. 1 is a cross-section of a solenoid embodying the present invention on the line 11 in Fig. 2, and Fig. 2 is a longitudinal section of the same.
The illustrated embodiment of the invention comprises a base-plate 5, of sheet steel or iron, provided with perforated lugs 6 by which it maybe attached wherever the solenoid is to be used. The base-plate, together with a cup-shaped shell 7, also of steel or iron, constitute a housing for the other parts of the solenoid. To secure these members together, and toprovide also a.
guide for the plunger, the base-plate is centrally perforated and provided with an integral neck 8 in which one end of a central guide-tube 9 is fitted, the end of the tube being flanged over as shown. The guide-tube is of brass or other non-magnetic material.
At the upper end of the guide-tube is a plug 10 of iron or steel, which is grooved circumferentially and is fixed in place in the tube by a head 11, in the wall of the tube, pressed or rolled into the groove. This plug is engaged by a screw 12, passing through the 1shell 7, and through a plate 13 of iron or stee The winding 14 of the solenoid is enclosed within the shell. The armature or plunger 15 slides within the guide-tube, and is provided, at the top, with a bufi'er life-of nonmagnetic material. A spring 17, seated in perforations in the plug 10 and the plunger, tends to move the plun er in the opposite direction to that in whic it moves when the solenoid isenergized. The plunger may be connected, as by a rod 18, with any part or device which is to be actuated by it.
It will be apparent that an eficient magnetic circuit is provided through the base, the shell, the plug 10 and the plunger. The plate 13 is used to increase the permanence of the circuit at a point where the crosssectional area of the metal would otherwise be relatively small. The neck 8 on the baseplate serves to reduce the reluctance at the gap between the base and the plunger, and also to provide an extended support for the guide-tube.
The assembling of the solenoid is simple, as all of the parts go together loosely, and are then drawn into firm engagement by the single screw at the top.
The invention claimed is:
1. A solenoid comprising: a centrally perforated plate of magnetic material; a guide tube, of non-magnetic material, outwardly flanged at one end and closed, at the other end, by a plug of magnetic material fixed to the guide-tube, the guide-tube being seated, at its flanged end, in the perforation in said plate; a winding surrounding the guide tube; a cup-shaped shell, of magnetic material, enclosing the winding and resting, at its edge, against said plate; and screwthreaded means connecting the closed end of the shell with said plug in the guide-tube, whereby the shell and the base-plate are secured together through the agency of the plug and the guide-tube.
2. A solenoid comprising: a base-plate with a central opening and integral neck at said opening; a guide-tube seated in and secured to said neck, said tube being of nonmagnetic material; a plug, of magnetic material, fixed in the end of the guide-tube re mote from the base-plate; a winding surrounding the guide-tube; a cup-shaped shell of magnetic material, enclosing the winding; and a screw passing through the closed end of the shell and threaded into said plug, whereby the shell and the base-plate aresecured together through the agency of the plug and the guide-tube.
THOMAS L. LEE.
US714136A 1924-05-17 1924-05-17 Electric solenoid Expired - Lifetime US1650799A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468852A (en) * 1941-06-24 1949-05-03 Westinghouse Electric Corp Circuit interrupter
US2487604A (en) * 1945-09-21 1949-11-08 Gen Electric Vibratory converter switch
US2575095A (en) * 1944-12-15 1951-11-13 Cutler Hammer Inc Electromagnetic contactor with plunger armature
US2582351A (en) * 1946-05-11 1952-01-15 Magnavox Co Alternating current plunger type solenoid
US3036247A (en) * 1959-04-23 1962-05-22 Koontz Wagner Electric Company Electromagnet
US3099725A (en) * 1960-05-27 1963-07-30 Texas Instruments Inc Electromagnetic switching mechanism
US3249823A (en) * 1964-01-08 1966-05-03 Vitramon Inc Electromagnetic actuator
US3783423A (en) * 1973-01-30 1974-01-01 Westinghouse Electric Corp Circuit breaker with improved flux transfer magnetic actuator
US4088975A (en) * 1972-01-03 1978-05-09 Lang Gregor L Alternating current solenoids
US4451809A (en) * 1982-03-08 1984-05-29 Eaton Corporation Electromagnetic device
US4509716A (en) * 1983-09-30 1985-04-09 Cts Corporation Electromagnetically operated hydraulic valve device with snap-together valve housing
WO2007101550A2 (en) * 2006-03-08 2007-09-13 Thomas Magnete Gmbh Lifting magnet and method for the production thereof

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468852A (en) * 1941-06-24 1949-05-03 Westinghouse Electric Corp Circuit interrupter
US2575095A (en) * 1944-12-15 1951-11-13 Cutler Hammer Inc Electromagnetic contactor with plunger armature
US2487604A (en) * 1945-09-21 1949-11-08 Gen Electric Vibratory converter switch
US2582351A (en) * 1946-05-11 1952-01-15 Magnavox Co Alternating current plunger type solenoid
US3036247A (en) * 1959-04-23 1962-05-22 Koontz Wagner Electric Company Electromagnet
US3099725A (en) * 1960-05-27 1963-07-30 Texas Instruments Inc Electromagnetic switching mechanism
US3249823A (en) * 1964-01-08 1966-05-03 Vitramon Inc Electromagnetic actuator
US4088975A (en) * 1972-01-03 1978-05-09 Lang Gregor L Alternating current solenoids
US3783423A (en) * 1973-01-30 1974-01-01 Westinghouse Electric Corp Circuit breaker with improved flux transfer magnetic actuator
US4451809A (en) * 1982-03-08 1984-05-29 Eaton Corporation Electromagnetic device
US4509716A (en) * 1983-09-30 1985-04-09 Cts Corporation Electromagnetically operated hydraulic valve device with snap-together valve housing
WO1985001561A1 (en) * 1983-09-30 1985-04-11 Cts Corporation Electromagnetically operated hydraulic valve device with snap-together valve housing
WO2007101550A2 (en) * 2006-03-08 2007-09-13 Thomas Magnete Gmbh Lifting magnet and method for the production thereof
WO2007101550A3 (en) * 2006-03-08 2007-12-21 Thomas Magnete Gmbh Lifting magnet and method for the production thereof

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