US1727968A - Electromagnetic relay - Google Patents
Electromagnetic relay Download PDFInfo
- Publication number
- US1727968A US1727968A US144266A US14426626A US1727968A US 1727968 A US1727968 A US 1727968A US 144266 A US144266 A US 144266A US 14426626 A US14426626 A US 14426626A US 1727968 A US1727968 A US 1727968A
- Authority
- US
- United States
- Prior art keywords
- armature
- relay
- pair
- contact springs
- electromagnetic relay
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
- H01H47/18—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for introducing delay in the operation of the relay
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
- H01H50/74—Mechanical means for producing a desired natural frequency of operation of the contacts, e.g. for self-interrupter
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/86—Means for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts
- H01H50/88—Mechanical means, e.g. dash-pot
Definitions
- JOHN ERICKSON OF CHICAGO, ILLINOIS, ASSIGNOR TO AUTOMATIC ELECTRIC INC., OF CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE.
- My invention relates in general to electromagnetic relays and has for its object the provision of a relay having a variable time constant; and more especially, a relay having a variable time constant which is adjustable between much wider limits than are the well known types of slow acting relays now in common use.
- the preferred means used to attain this and other useful objects will be described fully hereinafter, reference being had to the accompanying drawing. It may be further pointed out that this application is a division of a co-pending application Serial No. 348,548, filed December 31, 1919,
- Patent No. 1,641,256 issued September 6, 1927 and of application Serial No. 55,688 filed Sept. 11, 1925.
- the drawing shows a relay of my improved type connected for use in combination with a diiierential relay to hold a circuit open for a certain definite time interval.
- the purpose of the embodiment of the invention as shown is to produce a prolonged opening of the circuit extending over con- 2 ductor 20 whenever the relay 10 is energized.
- a relay comprising a winding having a core extending there through, an armature cooperating with said core, a pair of contacts operated by the movement of said armature, a flexible reed secured to the armature vibrating responsive to an actuation of the armature and having movement independent of the armature, a second pair of contacts associated with and operated by the movement of said reed, and a weight adjustably secured to said reed.
- a relay comprising a winding having 175 a magnetic core, an armature cooperating with said core, a pair of normally open contact springs lying in a plane parallel to said core adapted to be maintained closed during the entire time the armature is attracted, a second pair of contact springs secured to said armature and a weighted member connected to one spring of the second pair set in motion by said weighted mem- 185 ber when the armature is attracted to cause relative movement between the second pair of contact springs.
- An electromagnetic relay having an armature adapted to be attracted when the magnet is energized and retracted when the magnet is deenergized, a weight connected to said armature and set in motion when the armature is attracted, the said connection being flexible so that the weight is enabled to continue its movement after the movement of the armature has ceased and thereby oppose retraction of the armature when the magnet is deenergized, a pair of contact springs actuated by the movement of said 1.19
- An electromagnetic relay having an armature adapted to be attracted when the magnet is energized and retracted when the magnet is deenergized, an inertia member associated with said armature, a flexible connection between the armature and said member whereby the said member is set in motion
- a pair of contacts also influenced by said inertia member and a sec- 0nd pair of contacts controlled b the operation of said armature as modi ed by said member.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Relay Circuits (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Electromagnets (AREA)
Description
, P 1929- J. ERIcKsQN 1,727,968
ELECTROMAGNET I C RELAY Original Filed Dec. 31. 1919 l uuen lnr Jul'm Ericksun Patented Sept. 10, 1929.
UNITED STATES PATENT OFFICE.
JOHN ERICKSON, OF CHICAGO, ILLINOIS, ASSIGNOR TO AUTOMATIC ELECTRIC INC., OF CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE.
ELECTROMAGNETIC RELAY.
Original applications filed December 31, 1919, Serial No. 348,548, and September 11, 1925, Serial No; 55,688.
- Divided and this application filed October 26, 1926. Serial No. 144,266.
My invention relates in general to electromagnetic relays and has for its object the provision of a relay having a variable time constant; and more especially, a relay having a variable time constant which is adjustable between much wider limits than are the well known types of slow acting relays now in common use. The preferred means used to attain this and other useful objects will be described fully hereinafter, reference being had to the accompanying drawing. It may be further pointed out that this application is a division of a co-pending application Serial No. 348,548, filed December 31, 1919,
now Patent No. 1,641,256, issued September 6, 1927 and of application Serial No. 55,688 filed Sept. 11, 1925.
The drawing shows a relay of my improved type connected for use in combination with a diiierential relay to hold a circuit open for a certain definite time interval.
The purpose of the embodiment of the invention as shown is to produce a prolonged opening of the circuit extending over con- 2 ductor 20 whenever the relay 10 is energized.
The operation is as follows: When the circuit of relay 10 is closed at contact devices 21 it attracts its armature and closes contact springs 12 and 13. By this operation a circuit is completed through the two windings of the differential relay 11 in parallel. The circuit for one of the windings, however, includes the contact springs 14 and 15 and is rapidly interrupted by vibrations of the weight 17 When relay 10 is first energized, therefore, the differential relay 11 is unbalanced and is operated to attract its armature and separate contact springs 18 and 19. As soon as the weight 17 has ceased vibrating contact springs 14: and 15 remain closed and the circuit through both its windings being now closed continuously, difi'erential relay 11 will retract its armature and again close contact springs 18 and 19. Regulation of the time interval of the differential relay is accomplished by adjusting the weight 17 on rod 16, and by regulating the length of stroke of the armature of relay 10.
In adjusting the relays wide adjustments 5 of the time constant is accomplished by regulating the strokeof the relay armature. The adjustment of the weight by moving it up and down changes the frequency of the vibrations and while it alters to some extent the durationof a series of Vibrations it is:- of use chiefly in, adjusting the frequency to the natural period of the device which has to be operated.
Having described my invention what I desire to have secured and protected by Let-: ters Patent will be pointed out in the appended claims.
What is claimed is:
1. A relay comprising a winding having a core extending there through, an armature cooperating with said core, a pair of contacts operated by the movement of said armature, a flexible reed secured to the armature vibrating responsive to an actuation of the armature and having movement independent of the armature, a second pair of contacts associated with and operated by the movement of said reed, and a weight adjustably secured to said reed.
2. A relay comprising a winding having 175 a magnetic core, an armature cooperating with said core, a pair of normally open contact springs lying in a plane parallel to said core adapted to be maintained closed during the entire time the armature is attracted, a second pair of contact springs secured to said armature and a weighted member connected to one spring of the second pair set in motion by said weighted mem- 185 ber when the armature is attracted to cause relative movement between the second pair of contact springs.
3. An electromagnetic relay having an armature adapted to be attracted when the magnet is energized and retracted when the magnet is deenergized, a weight connected to said armature and set in motion when the armature is attracted, the said connection being flexible so that the weight is enabled to continue its movement after the movement of the armature has ceased and thereby oppose retraction of the armature when the magnet is deenergized, a pair of contact springs actuated by the movement of said 1.19
Weight, and a second pair of contacts actuated by said armature.
4. An electromagnetic relay having an armature adapted to be attracted when the magnet is energized and retracted when the magnet is deenergized, an inertia member associated with said armature, a flexible connection between the armature and said member whereby the said member is set in motion When the armature is attracted and whereby the inertia of said member delays the retraction of the armature in case the deenergiz'ation of the magnet occurs Within a predetermined time, a pair of contacts also influenced by said inertia member and a sec- 0nd pair of contacts controlled b the operation of said armature as modi ed by said member.
In witness whereof, I hereunto subscribe my name this 25th day of October, A. D.
JOHN ERICKSON.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US144266A US1727968A (en) | 1919-12-31 | 1926-10-26 | Electromagnetic relay |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US348548A US1641256A (en) | 1919-12-31 | 1919-12-31 | Electromagnetic relay |
US144266A US1727968A (en) | 1919-12-31 | 1926-10-26 | Electromagnetic relay |
Publications (1)
Publication Number | Publication Date |
---|---|
US1727968A true US1727968A (en) | 1929-09-10 |
Family
ID=23368500
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US348548A Expired - Lifetime US1641256A (en) | 1919-12-31 | 1919-12-31 | Electromagnetic relay |
US55688A Expired - Lifetime US1779423A (en) | 1919-12-31 | 1925-09-11 | Electromagnetic relay |
US144266A Expired - Lifetime US1727968A (en) | 1919-12-31 | 1926-10-26 | Electromagnetic relay |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US348548A Expired - Lifetime US1641256A (en) | 1919-12-31 | 1919-12-31 | Electromagnetic relay |
US55688A Expired - Lifetime US1779423A (en) | 1919-12-31 | 1925-09-11 | Electromagnetic relay |
Country Status (4)
Country | Link |
---|---|
US (3) | US1641256A (en) |
DE (1) | DE357235C (en) |
FR (1) | FR540744A (en) |
GB (1) | GB156076A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE968494C (en) * | 1943-12-07 | 1958-02-27 | Metzenauer & Jung G M B H | Contact for electrical switchgear |
-
1919
- 1919-12-31 US US348548A patent/US1641256A/en not_active Expired - Lifetime
-
1920
- 1920-09-27 GB GB27477/20A patent/GB156076A/en not_active Expired
- 1920-11-19 DE DEA34396D patent/DE357235C/en not_active Expired
- 1920-12-31 FR FR540744D patent/FR540744A/en not_active Expired
-
1925
- 1925-09-11 US US55688A patent/US1779423A/en not_active Expired - Lifetime
-
1926
- 1926-10-26 US US144266A patent/US1727968A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US1779423A (en) | 1930-10-28 |
US1641256A (en) | 1927-09-06 |
FR540744A (en) | 1922-07-17 |
GB156076A (en) | 1921-11-24 |
DE357235C (en) | 1922-08-21 |
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