US1686347A - Automatic arcless plug connection - Google Patents

Automatic arcless plug connection Download PDF

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Publication number
US1686347A
US1686347A US53760A US5376025A US1686347A US 1686347 A US1686347 A US 1686347A US 53760 A US53760 A US 53760A US 5376025 A US5376025 A US 5376025A US 1686347 A US1686347 A US 1686347A
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plug
switch
arcless
automatic
clips
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Expired - Lifetime
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US53760A
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Scheuermann Otto
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
    • H01R13/7036—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part the switch being in series with coupling part, e.g. dead coupling, explosion proof coupling

Definitions

  • the invention relates to improvements in the plug circuit.
  • the objects of the improvement are, first, to secure an absolutely arcless plug connection; second, to eliminate' the separate operation of a switch; third, to provide at all times currentless plug clips in an unconnected plug circuit; and'fourth, to provide ⁇ a compartment, containing all live parts in non service condition, accessible for purposes of repair.
  • Fig. l is a vertical section through the device, mounted in a box or, in a convenient housing
  • Fig. 2 shows a bottom view with the housing renoved
  • Fig. 3 is a vertical section of the
  • the switch base 1 constitutes at the same time the plug receptacle base.
  • On the underside of this base the entire mechanism of any type of reciprocating switch is mounted, including the switch clips 2, 2, 3, 3 and the switch blades 4, 4', 5, 5"; on the upper side of said base, the plug-receptacle clips 6, 6 are mounted and connected through the base byv screws 7, 7 with the respective switch clips 2, 2. If the plug is not inserted these receptacle clips 6, 6 are always currentless.
  • the advantage of thel mounting of the parts on both sides of thebase 1 as described is, the creation of two separate compartments after the combination has been mounted in a convenient housing.
  • the switch compartment 8 and the plug receptacle compartment 9 can thus be entirely closed.
  • Live wire connections can be ⁇ made in the switch compartment only. It is impossible therefore to touch any current carrylng part, except in repair cases, when the cover 10 on which the complete vcombination is mounted must be removed. To do away with the separate switch operation, it is proposed to operate the switch by inserting or extracting the spring. The groove is lined with metal to lessen the friction.
  • any plug connection is desired one simply pushes the plug in as usual. Before engaglng the steep thread extension 12 with the nut 14, the plu blades19, are already in contact with the p ug clips 6, 6. After moving the plug approximately 2/3 of the thread extensions length (which corresponds to approximately a 90 turn of the switch arbor 20) the switch will snap on and connect the plug circuit. The last third of the extension is easily passed by the plug, as no appreciable tensioning of the spring is necessary, and as the natural impulse is to move the plug until it is stopped at the base 1.
  • the plug then can be taken out without any...
  • an-automatic arcless plug connection including a housing, a base in said housing separating the same into two compartments, plug recelving clips mounted in one of said compartments on onev side of said base, and switch blades and clips in the other of lsaid compartments on the opposite side of said base, means extending through the base connecting the plug clips and the switch clips, means for allowing the making of'live wire connections in the part of said housing containing the switchmechanism only, a means for operatingthe switch by the insertion of a plug, and a means for positively guiding the plug.
  • a cover for said housing plug clips in one of said compartments on one side of said base, adapted to be engaged by thel plug blades before the engagement with the switch, a switch means in the other of said compartments, a switch stem, and an extension therefor havin a steep thread and a circular groove, a apte-d to be received in said plug, a nut on said plug adapted to engage with the steep thread on said extension to change the linear plug movement into a rotary one, said nut adapted to be released upon the engagement of the circular groove.
  • a housin having a cover and a nose on the Same wit a plug having an inner groove adapted to be engaged by said nose for guiding said plug, a base divid ing said housing into two separate compartments, plug connections and contacts in one of said compartments, and switch connections and contacts in the other compartment, connections passing through said base for connecting the plug contacts and the switch contacts, said switch a double-pole switch, a switch stem, an extension therefor having a thread and a circular groove, a nut on said plug adapted to engage the thread on said extension to change the linear plug movement into a rotary one and positively guiding said plug, said nut and plug adapted to be disengaged from said stem upon the engagement of said nut with the circular groove.

Description

Oct. 2, 192s. 1,686,347
. SCHEUERMANN AUTOMATIC ARCLESS PLUG CONNCTION Filed Aug. 5l, 1925 IDI/@n for Patented Oct. 2, 1928.
UNITED STATES 1,686,347 PATENT OFFICE.
OTTO SCHEUERMANN, OF SHARON, PENNSYLVANIA.
AUTOMATIC ARCLESS PLUG CONNECTION.
Application led August 31, 1925. Serial No. 53,760.
The invention relates to improvements in the plug circuit. The objects of the improvement are, first, to secure an absolutely arcless plug connection; second, to eliminate' the separate operation of a switch; third, to provide at all times currentless plug clips in an unconnected plug circuit; and'fourth, to provide `a compartment, containing all live parts in non service condition, accessible for purposes of repair.
The invention is illustrated in the accompanying drawing;,in which: Fig. l is a vertical section through the device, mounted in a box or, in a convenient housing; Fig. 2 shows a bottom view with the housing renoved; Fig. 3 is a vertical section of the The switch base 1 constitutes at the same time the plug receptacle base. On the underside of this base the entire mechanism of any type of reciprocating switch is mounted, including the switch clips 2, 2, 3, 3 and the switch blades 4, 4', 5, 5"; on the upper side of said base, the plug-receptacle clips 6, 6 are mounted and connected through the base byv screws 7, 7 with the respective switch clips 2, 2. If the plug is not inserted these receptacle clips 6, 6 are always currentless.
The advantage of thel mounting of the parts on both sides of thebase 1 as described is, the creation of two separate compartments after the combination has been mounted in a convenient housing. The switch compartment 8 and the plug receptacle compartment 9 can thus be entirely closed.
Live wire connections can be `made in the switch compartment only. It is impossible therefore to touch any current carrylng part, except in repair cases, when the cover 10 on which the complete vcombination is mounted must be removed. To do away with the separate switch operation, it is proposed to operate the switch by inserting or extracting the spring. The groove is lined with metal to lessen the friction.
If any plug connection is desired one simply pushes the plug in as usual. Before engaglng the steep thread extension 12 with the nut 14, the plu blades19, are already in contact with the p ug clips 6, 6. After moving the plug approximately 2/3 of the thread extensions length (which corresponds to approximately a 90 turn of the switch arbor 20) the switch will snap on and connect the plug circuit. The last third of the extension is easily passed by the plug, as no appreciable tensioning of the spring is necessary, and as the natural impulse is to move the plug until it is stopped at the base 1.
Having pushed the plug all the way in the nut will engage a small circular groove 2l and will be released, allowing the switch arbor 20 to move back again into the neutralposition where the switch spring 21 is free of tension. In pulling out the plug, the action of the combination is reversed. At of the extension on the upward motion, the switch snaps off and opens the plug circuit, before the plug blades 19 leave the plug clips 6, 6
The plug then can be taken out without any...
sparking eect at the contact clips. From the above 'description the operation of my device will be entirely clearwithout further explanation.
It will be understood, that I do not limit myself to the exact detailsof construction shown and described but various modifications might be resorted to without departing from the spirit of the invention as set forth in the appended claims.
What I claim as my invention is:
1. In an-automatic arcless plug connection including a housing, a base in said housing separating the same into two compartments, plug recelving clips mounted in one of said compartments on onev side of said base, and switch blades and clips in the other of lsaid compartments on the opposite side of said base, means extending through the base connecting the plug clips and the switch clips, means for allowing the making of'live wire connections in the part of said housing containing the switchmechanism only, a means for operatingthe switch by the insertion of a plug, and a means for positively guiding the plug.
2. a housing, a base in said housing dividing the. same into twoseparate adjoining compart- In an automatic arcless plug connection,
ments, a cover for said housing, plug clips in one of said compartments on one side of said base, adapted to be engaged by thel plug blades before the engagement with the switch, a switch means in the other of said compartments, a switch stem, and an extension therefor havin a steep thread and a circular groove, a apte-d to be received in said plug, a nut on said plug adapted to engage with the steep thread on said extension to change the linear plug movement into a rotary one, said nut adapted to be released upon the engagement of the circular groove.
3. In an automatic arcless plug connection, the combination of a housin having a cover and a nose on the Same, wit a plug having an inner groove adapted to be engaged by said nose for guiding said plug, a base divid ing said housing into two separate compartments, plug connections and contacts in one of said compartments, and switch connections and contacts in the other compartment, connections passing through said base for connecting the plug contacts and the switch contacts, said switch a double-pole switch, a switch stem, an extension therefor having a thread and a circular groove, a nut on said plug adapted to engage the thread on said extension to change the linear plug movement into a rotary one and positively guiding said plug, said nut and plug adapted to be disengaged from said stem upon the engagement of said nut with the circular groove.
v Signed at New York in the county of New York and State of New York this 1st day of June, A. D. 1925.
o'rTo SOHEUERMANN.
US53760A 1925-08-31 1925-08-31 Automatic arcless plug connection Expired - Lifetime US1686347A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3056013A (en) * 1959-07-22 1962-09-25 Hollerith Charles Cooking appliance
US3235682A (en) * 1964-02-24 1966-02-15 Crouse Hinds Co Explosion proof electrical connector operable upon engagement of plug and receptaclehalves
US4396244A (en) * 1981-04-20 1983-08-02 Raychem Corporation Solderless connector device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3056013A (en) * 1959-07-22 1962-09-25 Hollerith Charles Cooking appliance
US3235682A (en) * 1964-02-24 1966-02-15 Crouse Hinds Co Explosion proof electrical connector operable upon engagement of plug and receptaclehalves
US4396244A (en) * 1981-04-20 1983-08-02 Raychem Corporation Solderless connector device

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