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US1954092A - Electromagnetic switching device - Google Patents

Electromagnetic switching device Download PDF

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Publication number
US1954092A
US1954092A US594856A US59485632A US1954092A US 1954092 A US1954092 A US 1954092A US 594856 A US594856 A US 594856A US 59485632 A US59485632 A US 59485632A US 1954092 A US1954092 A US 1954092A
Authority
US
United States
Prior art keywords
contacts
magnet
shaft
armature
switching device
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
US594856A
Other languages
English (en)
Inventor
Muller Konrad
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens 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 Siemens Corp filed Critical Siemens Corp
Application granted granted Critical
Publication of US1954092A publication Critical patent/US1954092A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H67/00—Electrically-operated selector switches
    • H01H67/02—Multi-position wiper switches
    • H01H67/04—Multi-position wiper switches having wipers movable only in one direction for purpose of selection
    • H01H67/06—Rotary switches, i.e. having angularly movable wipers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • C09K3/149—Antislip compositions

Definitions

  • the present invention relates to an electromagnetic switching device suitable for use in tele phone or like systems in which signals are sent by means of trains of electrical impulses which serve to bring about step-by-step operation of the device.
  • a device may be employed advantageously in telephone systems in connection with a switch having movement in one direction only which is required to connect with an idle line of a particular group, in this case the switching devices will respond to a series of impulses and in accordance with its setting effect a marking to indicate the group concerned.
  • the invention contemplates the use of an electromagnetic structure substantially similar to that of a relay of the type ordinarily employed in telephone systems but provided in addition with ratchet and pawl mechanism for giving rotary motion to a shaft which carries a brush or wiper arranged to wipe over a set of fixed contacts.
  • the shaft may also carry suitable cams arranged to operate contact springs in predetermined positions and if desired the armature may also effect the direct operation of additional contact springs in the manner of an ordinary relay.
  • the chief object of the invention is to produce a stepby-step switch of the character indicated which will occupy only a small mounting space, while still being reliable in operation and providing for the necessary number of circuit changes.
  • an electromagnet is adapted to operate pawl and ratchet mechanism to rotate a vertical shaft which is mounted above the magnet while the armature and contact springs directly operated thereby are mounted on opposite sides of the magnet.
  • Fig. 1 represents a plan view of the device
  • Figs. 2 and 3 are elevations from the top and bottom of Fig. 1
  • Fig. 4 is an end view.
  • the electromagnet comprises a winding 1 which is wound around a flat core 2, the left-hand end of which is bent over as shown to facilitate the mounting of the device.
  • This extended end also provides a bearing for the armature 3 and in addition serves to support the various contact springs 4 which are provided with soldering tags 5.
  • the projecting end of the core 2 furthermore serves as a mounting for the supporting member 6 which provides a bearing for the shaft 8 and contact bank 12.
  • the armature 3 comprises a flat plate of the shape shown and substantially the dimensions of the coil and carries a pawl 7 arranged to co-operate with a ratchet wheel 13.
  • the shaft 8 also carries the cam discs 9 which are given suitable contour for operating associated contact springs in the desired positions.
  • the shaft 8 has attached to it at its upper end the wiper 10 which is double-ended, one end bearing on the various contacts 11 and the other on the semi-circular feed segment 14 which are mounted on the insulating disc 12.
  • the operation of the device is that each time armature 3 is attracted, pawl 7 advances ratchet wheel 13 one step thereby moving wiper 10 from one of the contacts 11 to the next.
  • the springs directly controlled by the armature will be operated on each energization of the magnet and those controlled by the cam discs in positions determined by the contour of the cams.
  • a supporting member comprising a flat iron bar having a small portion thereof bent at right angles to the major portion thereof and serving as the means by which said mechanism may be mounted on other equipment, a coil wound about a portion of said bar to form the operating magnet of said mechanism, other apparatus fixed to said supporting member adjacent the point at which said member is bent; said apparatus including an auxiliary member extending alongside said supporting member and having on the free end thereof a ratchet equipped rotatable shaft equipped with wipers and a co-operative set of fixed contacts, and also including a pawl equipped armature arranged to drive said ratchet wheel and wipers upon excitation of said magnet.
  • a bank of contacts comprising contacts engaged successively by one end of said wiper and including a contact continuously engaged by the other end of said wiper during successive engagement of contacts by the one end or" said wiper until all of them have been encountered, said continuously engaged contact being then continuously engaged by the first-mentioned end of said wiper while the other end thereof successively engages said contacts.
  • a core having a winding thereon to form an operating magnet for said device; a member secured to said core, arranged alongside said magnet, and having the configuration of a U at its free end; a disk of insulating material, having a circle of fixed contacts thereon, fixed to one portion of the U; a rotatable shaft, passing through bearing holes in the U portion of said member, wipers on said shaft arranged in operative relation to said fixed contacts, a ratchet wheel on said shaft for use in rotating it; cams on said shaft in operative relation to contact springs, also mounted upon said core; and a pawl equipped armature also mounted on said core in co-operative relation to said magnet and ratchet wheel and operated upon energization of said magnet to operate said wipers and cams.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Electromagnets (AREA)
  • Transmission Devices (AREA)
US594856A 1931-02-25 1932-02-24 Electromagnetic switching device Expired - Lifetime US1954092A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE396738X 1931-02-25

Publications (1)

Publication Number Publication Date
US1954092A true US1954092A (en) 1934-04-10

Family

ID=6397087

Family Applications (1)

Application Number Title Priority Date Filing Date
US594856A Expired - Lifetime US1954092A (en) 1931-02-25 1932-02-24 Electromagnetic switching device

Country Status (4)

Country Link
US (1) US1954092A (de)
AT (1) AT133056B (de)
BE (1) BE396738A (de)
GB (1) GB396738A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2565480A (en) * 1946-09-14 1951-08-28 Int Standard Electric Corp Selectrive switch
US2568050A (en) * 1946-04-05 1951-09-18 Siemens Brothers & Co Ltd Rotary selective switch
US2600938A (en) * 1949-09-20 1952-06-17 Remington Rand Inc Stepping switch
US2616994A (en) * 1948-05-06 1952-11-04 Ibm Rotary switch
US2701283A (en) * 1951-02-09 1955-02-01 Stromberg Carlson Co Stepping switch
US2740870A (en) * 1951-09-27 1956-04-03 Sodeco Compteurs De Geneve Impulse-forming contact-pieces for calling dials for impulse distributors

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2568050A (en) * 1946-04-05 1951-09-18 Siemens Brothers & Co Ltd Rotary selective switch
US2565480A (en) * 1946-09-14 1951-08-28 Int Standard Electric Corp Selectrive switch
US2616994A (en) * 1948-05-06 1952-11-04 Ibm Rotary switch
US2600938A (en) * 1949-09-20 1952-06-17 Remington Rand Inc Stepping switch
US2701283A (en) * 1951-02-09 1955-02-01 Stromberg Carlson Co Stepping switch
US2740870A (en) * 1951-09-27 1956-04-03 Sodeco Compteurs De Geneve Impulse-forming contact-pieces for calling dials for impulse distributors

Also Published As

Publication number Publication date
BE396738A (de)
GB396738A (en) 1933-08-09
AT133056B (de) 1933-04-25

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