US2520526A - Contact device - Google Patents

Contact device Download PDF

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Publication number
US2520526A
US2520526A US682600A US68260046A US2520526A US 2520526 A US2520526 A US 2520526A US 682600 A US682600 A US 682600A US 68260046 A US68260046 A US 68260046A US 2520526 A US2520526 A US 2520526A
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US
United States
Prior art keywords
cross
rod
arm
arms
members
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
US682600A
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English (en)
Inventor
Brouwer Pieter Hendri Johannes
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.)
Hartford National Bank and Trust Co
Original Assignee
Hartford National Bank and Trust 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.)
Filing date
Publication date
Application filed by Hartford National Bank and Trust Co filed Critical Hartford National Bank and Trust Co
Application granted granted Critical
Publication of US2520526A publication Critical patent/US2520526A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
    • B65G23/02—Belt- or chain-engaging elements
    • B65G23/04—Drums, rollers, or wheels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H01H1/26—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support
    • H01H1/28—Assembly of three or more contact-supporting spring blades
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/56—Contact spring sets

Definitions

  • This invention relates to a contact device, more on the central r-odi Themounting" is thus veryparticularly a relay; whosecontacts are” arranged simple sothat it is notfilecessary to keep-ladders on springsgroupe'd in parallel relationwith one of difierent constructions instore, since these another; I can be mounted directly, according'to require-- In contact devicesof this kind” it is knownto 5; ments; from stored central rods;- crossarmsand drive the springs which" are moved by adriving distance piec'es.
  • a contact device the constitutes a conne cti'o'n between the drivlngi arm central rod is ar-ranged kiet -eentwo springgroups and the movab'ly arranged springs, so" that the positioned side'by'side, both; ofwhich are ac movement of thedriving" armis transmitted tothat-ed by cross arms pushed on the rods.
  • this tral aperture inat least one cross arm may he" case the;- same" ladder is used for all-"thespring formed in a ribbed portion surrounding the cengroups, the cross-arms must ice-chosen long; retral rod; so at the p-ointsin the vicinity of. sulting in aweakeningof" the construction and the axis the arm it does not n a pin occupying considerable space.
  • a ladder nortine fore'ach' spring group also i'n-vol-ves a great loss In: anothen advantageous construction ofi the 1;". pace; l-t m zy.
  • the present invention provides a novel": con In another advantageous form of! construction struction of a contact device whereby the said of the device according tothe' invention, the drawbacks are ohviated and other advantages central rod comprises at one-end azwidened pow may be obtained; tion by means ofi which it. engages the driving?
  • the auxiliary momarm, It'i'sithus: possible to't'ake steps" tozpr'event her consist's ofa centratrodmnvedbythe driving n a: mutual shift of the rod and'thedriving arm; arm whose longitudinal direction is normal to In order that th'einventionvmay'be'morerclearlw that of the springs" and which" ha's pushed on it" understood and readilgrcarriediintoi efiect; it will insulating cross arms tvhi 'h are provided with be described more fully o-y reference to the; acan aperture fitting the" sectionof the rod and company-int: drawing.
  • reference I denotes the driving arm of a contact device which otherwise is not shown.
  • the driving arm By means of a cross-piece 5 and a ladder-shaped assembly 2 the driving arm actuates the movable springs of the spring groups forming part of the contact device.
  • the ladder assembly '2 consists of a central rod 3 which is of metal and which is secured in the insulating part 4 comprising the cross-piece 5. The latter fits with its projections 6 and 1 into the recesses 8 and 9 of the driving arm I.
  • the cross-piece 5 comprises in addition, the projecting parts l and H which serve to support the lower contact springs of the spring groups and to move these springs if they are movable.
  • the central rod has pushed on it a certain number of cross arms, of which only the cross arm I2 is shown in the figure.
  • the contact springs l3 and I4 shown in dotted lines in the figure are bearing in the manner shown on the cross arm l2 and are moved by the latter.
  • the portion l of cross-arm I2 is thickened and is provided with an aperture embracing the cross-section of the rod 3.
  • spacer pieces I6, l1 and I8 In order to be able to position the cross-arm at the correct height use is made of spacer pieces I6, l1 and I8.
  • the ladder shown in Fig. l is adapted to the actuation of one or more spring groups exhibiting a definite configuration of springs. After that the upper arm is locked in a manner known per se.
  • cross arms extending at only one side of the central aperture. From the figure it can be seen that the cross-arms have a flat shape and are with their surfaces parallel to those of the springs, thus resulting in a saving in space.
  • the lower contact springs of the spring groups on each side of the central rod are bearing on the projecting parts I0 and H which comprise a break- .groove at the place of their attachment to the cross piece 5, so that they may be broken-off, if superfluous.
  • Fig. 2 shows a completely mounted ladder of a contact device according to the invention. It can be clearly seen that the central supporting rod 20, together with the cross piece 2!, exhibits a T-shape.
  • the rod 20 has pushed on it three cross arms, of which the central one 22 extends only on the right-hand side of the central aperture. In the manner shown these cross arms and the projections of the cross piece 2
  • the two lower pairs of springs of the two spring groups constitute make-contacts, all the adjacent pairs of springs are break-contacts.
  • the construction of the cross piece 21 permits of avoiding an undesirable movement of the lower end of the ladder with respect to the driving arm.
  • Fig. 3a is the top view
  • Fig. 3b a cross-sectional view
  • Fig. 80 another crosssectional view of a cross arm with which special steps have been taken to increase the leakage path.
  • the springs are located on wedge-shaped arms 30 and 3
  • the central aperture of the cross arm is formed in a ribbed portion 4 partly surrounding the central rod by means of grooves 33 and 34 provided in it. Consequently, in the vicinity of the portions 35 and 36 located in the axis of the arm, the metal rod passed through the aperture, of which the section is shown only in Fig. 3a, does not engage the insulating material at the edge of the central aperture. It is evident that the leakage path is thus materially increased.
  • the invention permits the construction of compact contact devices which satisfy high mechanical and electrical requirements.
  • An electrical contact device comprising stacked contact spring members, a ladder-like assembly having a central rod, at least one crossarm member on said rod, removable spacing members mounted on said rod for vertically adjusting said cross-arm member, and driving means coupled to a driven member forming part of said ladder-assembly, for moving said crossarm and actuating one of said spring members.
  • An electrical contact device comprising spring members arranged one above the other, a ladder-like assembly having a central rod, cross-arm members and spacing members pushfitted on said rod adjusting the position of the cross arm members in operative relation to certain of said spring members, and driving means coupled to a driven member forming part of said ladder-assembly, for moving said cross arms and actuating through said cross-arms certain of said spring members.
  • An electrical contact device comprising spring members stacked in parallel groups, a central metal rod between said groups, spaced cross-arms and spacer members each of insulating material and frictionally mounted on said rod adjusting the position of the cross arm members in operative relation to certain of said spring members, a driving means, and a member on said rod capable of engagement with said driving means for actuating certain of said spring means through said cross-arms.
  • An electrical contact device comprising fiat contact spring members arranged one above the other in two parallel groups, a metal rod centrally arranged between said groups, cross-arm members and spacer members of insulating material push-mounted on said rod one above the other adjusting the position of the cross arm members in operative relation to certain of said spring members, and driving means rockably coupled to said rod, portions of said cross-arms having flat surfaces parallel to the fiat surfaces of said spring members.
  • An electrical contact device comprising contact spring members stacked one above the other in parallel groups, a rod centrally arranged between said groups, cross-arm members and spacer members each formed with a partly ribbed central opening for press-positioning same on said central rod, said cross-arm members being strengthened in the vicinity of said central opening and including surfaces parallel to the surfaces of said spring members, said spacers spacing the cross-arm members on said rod to a position engaging said spring members when the rod is operated by a driven member and driving means coupled to a driven member on said rod for moving said cross-arms and thereby actuating certain of said spring members.
  • An electrical contact device comprising spring members stacked one above the other in parallel relation, a rod arranged between said spring members, cross-arm members adjustably supported on said rod in operative relation to certain of said spring members, movable spacers arranged on said rod for supporting said crossarm members, at least one of said cross-arm members having an arm extending substantially on one side of said rod, and driving means coupled to a driven member on said rod for moving said cross-arms and thereby actuating some of said spring members.
  • An electrical contact device comprising stacked contact spring members, a ladder-like assembly having a central rod formed with a T-shaped cross-piece at the bottom end portion, spaced apart cross-arms pushably mounted on said rod above said portion, driving means rockably coupled to the said rod at the said end portion and through said cross-piece and the said cross-arms to certain of said spring members, said T-shaped cross-piece having projecting upward portions adapted to actuate the lowermost of said spring members.
  • An electrical contact device comprising pairs of contact spring members stacked one above the other in parallel relation, a metal rod centrally rranged between said pairs of springs, cross-arm members and spacer members each made of insulating material and including a grooved apertured portion for receiving said rod REFERENCES CITED

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)
  • Ladders (AREA)
US682600A 1943-04-21 1946-07-10 Contact device Expired - Lifetime US2520526A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL242448X 1943-04-21

Publications (1)

Publication Number Publication Date
US2520526A true US2520526A (en) 1950-08-29

Family

ID=19780648

Family Applications (1)

Application Number Title Priority Date Filing Date
US682600A Expired - Lifetime US2520526A (en) 1943-04-21 1946-07-10 Contact device

Country Status (5)

Country Link
US (1) US2520526A (enrdf_load_stackoverflow)
CH (1) CH242448A (enrdf_load_stackoverflow)
FR (1) FR905142A (enrdf_load_stackoverflow)
GB (1) GB617372A (enrdf_load_stackoverflow)
NL (1) NL62254C (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597823A (en) * 1945-08-29 1952-05-20 Bendix Aviat Corp Multiple switch
US2755356A (en) * 1950-11-21 1956-07-17 Jucker Julius Electromagnetic relays
US3012117A (en) * 1957-02-28 1961-12-05 Bernier Raymond Mounting for the fixed contacts and the terminals of an electromagnetic relay

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1969926A (en) * 1932-07-28 1934-08-14 M L Jeffrey Corp Dial and switch mechanism
US2077091A (en) * 1934-02-23 1937-04-13 Brander Bertil Johan Electric relay
US2134448A (en) * 1936-09-12 1938-10-25 Philips Nv Electromagnetic relay
US2238458A (en) * 1939-10-05 1941-04-15 Western Electric Co Switching mechanism
US2279811A (en) * 1940-06-19 1942-04-14 Bell Telephone Labor Inc Relay
US2282687A (en) * 1938-06-13 1942-05-12 Western Electric Co Set of contact springs for electrical switching apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1969926A (en) * 1932-07-28 1934-08-14 M L Jeffrey Corp Dial and switch mechanism
US2077091A (en) * 1934-02-23 1937-04-13 Brander Bertil Johan Electric relay
DE645956C (de) * 1934-02-23 1937-06-05 Bertil Johan Brander Kontaktfedersatz fuer Relais oder aehnliche Schaltapparate
US2134448A (en) * 1936-09-12 1938-10-25 Philips Nv Electromagnetic relay
US2282687A (en) * 1938-06-13 1942-05-12 Western Electric Co Set of contact springs for electrical switching apparatus
US2238458A (en) * 1939-10-05 1941-04-15 Western Electric Co Switching mechanism
US2279811A (en) * 1940-06-19 1942-04-14 Bell Telephone Labor Inc Relay

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597823A (en) * 1945-08-29 1952-05-20 Bendix Aviat Corp Multiple switch
US2755356A (en) * 1950-11-21 1956-07-17 Jucker Julius Electromagnetic relays
US3012117A (en) * 1957-02-28 1961-12-05 Bernier Raymond Mounting for the fixed contacts and the terminals of an electromagnetic relay

Also Published As

Publication number Publication date
GB617372A (en) 1949-02-04
FR905142A (fr) 1945-11-26
NL62254C (enrdf_load_stackoverflow)
CH242448A (de) 1946-05-15

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