US2499553A - Selector - Google Patents

Selector Download PDF

Info

Publication number
US2499553A
US2499553A US722241A US72224147A US2499553A US 2499553 A US2499553 A US 2499553A US 722241 A US722241 A US 722241A US 72224147 A US72224147 A US 72224147A US 2499553 A US2499553 A US 2499553A
Authority
US
United States
Prior art keywords
guide
contact
selector
bar
plane
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
US722241A
Other languages
English (en)
Inventor
Wiberg Eric Axel
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of US2499553A publication Critical patent/US2499553A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H67/00—Electrically-operated selector switches
    • H01H67/22—Switches without multi-position wipers
    • H01H67/26—Co-ordinate-type selector switches not having relays at cross-points but involving mechanical movement, e.g. cross-bar switch, code-bar switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity

Definitions

  • the present invention refers to an electromagnetically driven selector, especially for telephone plants, by means of which an arbitrary contact set among a number of sets lying beside each other can be operated.
  • the invention is chiefly characterized in that there is for each contact set a guide which, in active position at make and break of the selector magnet, actuates the pertaining contact set by means of a lifting member, and causes a displacement of the following guide from normal position to active position.
  • Fig. 1 shows a perspective view of the selector.
  • Figs. 2 and 3 illustrate a front view and a side view of the selector, and
  • Fig. 4 shows an enlarged detail of the contact actuating device in the selector.
  • a relay bridge I, Fig. 1 there is an electromagnetic relay 2, the armature 3 of which supports a bar 4, provided with holes 5.
  • Two studs 6 and I, provided with lips or teeth, are fastened on said bridge, on which a number of guides 8, 9 are also arranged.
  • the number of guides as well as the number of said teeth and holes in the bar corresponds to the number of selector positions or contact sets.
  • the bar II is provided in a usual way with recesses for contact springs l3, Fig. 3. Said contact springs are omitted in Fig. 1. On a bar lifting, the contacts in the corresponding contact spring set are actuated.
  • the guides are made with a certain pro-tension, which causes them to rest against their support with a pressure, which is directed downwards and to the right, Fig. 1.
  • the stud 1, Figs. 1 and 3 is shaped with inclined planes. At their initial position the guides pass through the holes in the armature bar and come out below the pertaining inclined plane in the stud 1. When a guide is lifted up to its active position, it glides upwards along the underside of inclined plane. When it has reached the upper end of the plane, it snaps its point onto the upper side of the plane. If the guide is thereafter moved downwards, it will glide along the upper side of the plane and then back to its initial position.
  • Each lifting spring I0 is shaped with a tongue is lying below the nearest guide, and the object of which is, on movement upwards of the lifting spring, to lift the following guide from its initial position to a position on a tooth on the bar 6.
  • a lifting spring, which is being moved upwards, thus causes the follow- 2 ing lifting spring to be actuated the next time, a step by step actuation of the contact sets lying in a row thus being obtained.
  • one of the guides is always lifted from its in tial position 25, Fig. 4, and lies in said position I! on a tooth on the stud 6. It presses with a certain pressure on the lower part of the right sidewall in the hole 5 of the armature bar.
  • the armature bar On the armature thereafter being moved to break position, the armature bar will move downwards and so will the hole 5, in the upper part of which the right sidewall is offset to the right.
  • the guide will glide from position I! to position l8 after the hole 5 moves a certain distance downwards.
  • the guide now reaches an active position.
  • An electric selector for telephone plants comprising a plurality of adjacent contact sets successively actuated, a relay-magnet-common to the several sets, a guide for each contact se't movable from an initial position to'an active position, a lifting member for the contacts in each set arranged to be moved, on make and break-i0 means for guiding the guide back to the initial position after the appertaining contact setlhas' been actuated.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Load-Engaging Elements For Cranes (AREA)
US722241A 1946-02-27 1947-01-15 Selector Expired - Lifetime US2499553A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2499553X 1946-02-27

Publications (1)

Publication Number Publication Date
US2499553A true US2499553A (en) 1950-03-07

Family

ID=20425898

Family Applications (1)

Application Number Title Priority Date Filing Date
US722241A Expired - Lifetime US2499553A (en) 1946-02-27 1947-01-15 Selector

Country Status (3)

Country Link
US (1) US2499553A (enrdf_load_stackoverflow)
BE (1) BE470721A (enrdf_load_stackoverflow)
FR (1) FR942267A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2647166A (en) * 1949-01-19 1953-07-28 Int Standard Electric Corp Switching mechanism

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB225932A (en) * 1923-09-11 1924-12-11 Relay Automatic Telephone Co Improvements in electric switching apparatus suitable for use in telephony
US2127322A (en) * 1934-07-06 1938-08-16 Ericsson Telefon Ab L M Selector
US2309422A (en) * 1940-08-23 1943-01-26 Western Electric Co Circuit controlling device for electrical switching apparatus
US2367101A (en) * 1940-09-19 1945-01-09 Vigren Sten Daniel Selecting device for telephone and signal systems
US2438042A (en) * 1945-04-21 1948-03-16 Stromberg Carlson Co Selector switch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB225932A (en) * 1923-09-11 1924-12-11 Relay Automatic Telephone Co Improvements in electric switching apparatus suitable for use in telephony
US2127322A (en) * 1934-07-06 1938-08-16 Ericsson Telefon Ab L M Selector
US2309422A (en) * 1940-08-23 1943-01-26 Western Electric Co Circuit controlling device for electrical switching apparatus
US2367101A (en) * 1940-09-19 1945-01-09 Vigren Sten Daniel Selecting device for telephone and signal systems
US2438042A (en) * 1945-04-21 1948-03-16 Stromberg Carlson Co Selector switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2647166A (en) * 1949-01-19 1953-07-28 Int Standard Electric Corp Switching mechanism

Also Published As

Publication number Publication date
BE470721A (enrdf_load_stackoverflow)
FR942267A (fr) 1949-02-03

Similar Documents

Publication Publication Date Title
US2499553A (en) Selector
US2456112A (en) Electrical relay
US2682584A (en) Relay
US2562091A (en) Relay
US2647166A (en) Switching mechanism
US2769880A (en) Contact device for cross bar switches
GB243007A (en) An improved electro-magnetic switch
GB728891A (en) Improvements in and relating to electric contact making devices
US2490963A (en) Relay
US2322219A (en) Automatic telephone system
US2089157A (en) Relay
US1491657A (en) Printing press
GB523455A (en) Improvements in or relating to riveting devices
GB825456A (en) Improvements in and relating to electric switches
GB708887A (en) Improvements in or relating to cross-bar switches having bars crossing each other
US1264826A (en) Automatic telephone-exchange.
GB1409809A (en) Automatic tripping electromagnetic contactor
US2534797A (en) Switch holding and release mechanism
US2309422A (en) Circuit controlling device for electrical switching apparatus
US2682585A (en) Electromagnetic relay
US1517425A (en) Automatic telephone switch
US2587144A (en) Sequential switch release mechanism
US3115563A (en) Electromagnetic stepping switch
GB604459A (en) Improvements in or relating to switches
SU117856A1 (ru) Координатный соединитель с многократным полем