US3600534A - Electric socket switch - Google Patents

Electric socket switch Download PDF

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Publication number
US3600534A
US3600534A US65998A US3600534DA US3600534A US 3600534 A US3600534 A US 3600534A US 65998 A US65998 A US 65998A US 3600534D A US3600534D A US 3600534DA US 3600534 A US3600534 A US 3600534A
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US
United States
Prior art keywords
contact
engagement
halves
contact member
walls
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
US65998A
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English (en)
Inventor
David D Lovitz
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.)
Sternco Industries Inc
Original Assignee
Sternco Industries Inc
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 Sternco Industries Inc filed Critical Sternco Industries Inc
Application granted granted Critical
Publication of US3600534A publication Critical patent/US3600534A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/945—Holders with built-in electrical component
    • H01R33/955—Holders with built-in electrical component with switch operated manually and independent of engagement or disengagement of coupling
    • H01R33/9555—Holders with built-in electrical component with switch operated manually and independent of engagement or disengagement of coupling for screw type coupling devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details

Definitions

  • This mvention relates to electric socket switches, and is particularly. though not exclusively, directed to tandem sockets for receiving the rear ends of the two oppositely positioned electric light bulbs or other appliances.
  • two casing halves have three compartments in mutual registry, the compartments of each of said halves being formed by two spaced transverse walls.
  • the opposite end compartments of said halves are adapted to accommodate oppositely extending socket shells connected by two longitudinally extending strips that are secured together and which are connected to an inverted U shaped connector bridge, one end of which is electrically connected to one wire of a pair of conductors.
  • the central compartments of the casing halves are adapted to accommodate therein opposite contact components and a rotor switch with an exteriorly positioned knob.
  • the upper central compartment accommodates said connector bridge as one contact member
  • the lower central compartment accommodating a base contact member electrically connected to another wire of said pair of conductorsv
  • Extending down from the roof of the upper central compartment IS a holding post proportioned and positioned to firmly engage the said base contact member and hold it against the floor of the lower compartment; and extending up from the said lower compartment floor is another holding post proportioned and positioned to engage said connector bridge and hold it against the said roof of the upper compartment.
  • the said lower and upper transverse walls are shaped for interengagement, each pair of interengaged walls being adapted to hold clamped therebetween a resilient inverted V-shaped contact element, one prong of each of said contact elements being adapted for positioning within one of said socket shells, the other prong of each of said contact elements being adapted for positioning within said lower central compartment and adjacent an upstanding finger of said base contact member.
  • the said rotor switch has an inner actuator head which in one position engages both said prongs and holds them in yieldable engagement with the respective upstanding fingers of said base contact member for effecting a closed circuit, and in another position is out of engagement with said respective prongs whereby the prongs return to their normal position out of engagement with said fingers.
  • a subassembly is fonned of said two socket shells and said connector bridge, the said two strips and said connector bridge being connected by a rivet or other suitable fastener, the connecting bar of said bridge being on top.
  • the said base contact element is positioned on the floor of the lower casing half, and the two contact elements positioned over the tops of the respective transverse walls of the lower casing half.
  • the said subassembly is lowered into the lower casing half and the upper casing half placed upon the said lower half, whereby the complementary transverse walls of the upper and lower halves will interengage to clamp said contact elements therebetween, and the said holding posts will engage the said connector bridge and base contact member, respectively, in the manner above described, to firmly and accurately hold the contact components in place-all without the use of additional fasteners.
  • the only subsequent fastening operation is that of securing the two casing halves together by bolts or rivets.
  • FIG. 1 is an exploded perspective view of the components of a tandem socket switch according to this invention.
  • FIG. 2 is a front elevation of the assembled device.
  • FIG. 3 is a plan view thereof.
  • FIG. 4 is a section of FIG. 2 taken substantially along line 4-4, parts being in elevation, the switch being shown in open position.
  • FIG. 5 is a view like FIG. 4, the switch being shown in closed position.
  • FIG. 6 is a section of FIG. 3 taken along line 66, the switch being shown in open position.
  • FIG. 7 is a view like FIG. 6, the switch being shown in closed position.
  • FIG. 8 is a section of FIG. 2 taken along line 8-8, the rotor being omitted and parts being removed for clarity.
  • FIG. 9 is an enlarged fragmentary portion of FIG. 8.
  • FIG. 10 is a section of FIG. 2 taken along line 10-10.
  • FIG. 11 is an end view of the assembled device.
  • the two-part casing 10 comprises the substantially semicylindrical upper half and lower half parts 11 and 12, respectively, the casing supporting therein the two longitudinally aligned threaded socket shells l3 and 14 electrically and mechanically connected by the overlapping strips 15 and 16.
  • the strip 15 is a longitudinal extension of shell 13
  • strip 16 is a longitudinal extension of shell 14, the strips being secured together by the eyelets l7 and I8.
  • Secured to said overlapping strips 15 and 16 at the said eyelet 17 is the leg 19 of the inverted U-shaped conductor bridge 20, the opposite leg 21 extending down parallel to leg 19 from the said bridges connecting bar 22.
  • the said bar 22 extends transversely across the said upper casing half I 1, its said leg 21 preferably extending down to a level above the juncture 23 of the upper and lower casing halves l1 and 12 (FIGS. 8 and 9).
  • Disposed upon the intermediate base portion 24 of the lower casing half 12 is the base contact member 25, to be more fully hereinafter described, said member 25 having an upwardly extending arm 26 the upper edge 26a of which is spaced below said leg 21 of said bridge member 20. Electrically connected to said leg 21 and arm 26 are the respective stripped ends 27 and 28 of the line cord 29.
  • socket shells 13 and 14, bridge 20, base contact member 25 and line cord 29 constitute a subassembly generally designed S, firmly locked and operatively positioned within the casing without the use of rivets, bolts or other separate fasteners, all as will more clearly appear from the description hereinafter given.
  • the said upper casing half 11 is divided into opposite end compartments 30 and 31 and intermediate compartment 32, these being in registry with the respective opposite end compartments 33 and 34 and intermediate compartment 35 of the said lower casing half 12.
  • the said compartments 32 and 35' together form a switch and contacts housing as will more clearly hereinafter appear.
  • the said compartments 30, 31 and 32 in said upper casing half 11 are formed by the longitudinally opposite transverse walls 36 and 37, the lateral walls 38 and 39 and the roof 44.
  • Wall 36 has the central recess 40 therein and wall 37 has the central recess 41 therein.
  • the said compartments 33. 34 and 35 in said lower casing half 12 are formed by the longitudinally opposite transverse walls 42 and 43, the lateral walls 45 and 46 and the said base 24.
  • Wall 42 has the central upright extension 47 and wall 43 has the central upright extension 48.
  • Said extensions 47 and 48 are so proportioned and positioned as to interengage the said respective recessed portions and 41 when the said upper and lower halves l1 and l2 are in operative assembled relation.
  • the said upright extensions 47 and 48 have at their upper edges the respective notched portions 49 and 50 accomodating therein the respective upper apical portions 51 and 52 of the respective resilient contact elements 53 and 54 to be hereinbelow described.
  • the said member comprises, in addition to the said up wardly extending arm 26, the short longitudinally opposite contact fingers 60 and 61 extending upwardly from the flat base 62 and adapted for coactive engagement with said contact elements 53 and 54 in a manner to .be hereinafter set forth.
  • Integral with and extending upwardly from the base portion 24 of said intermediate compartment 35 of the lower casing half 12 is the holding post 63, positioned and proportioned so that its top end 64 is in engagement with the underside of the connecting bar 22 of said conductor bridge 20, said connecting bar being in engagement with the roof 44 of said upper casing half 11.
  • Integral with and extending down from the roof 44 of said upper casing half 11 is the holding post 65 positioned and proportioned so that its bottom end 66 is in engagement with the upper surface of the flat base 62 of the said base contact member 25. Both of said posts are offset inwardly with respect to the said transverse walls. The arrangement is hence such that when the two casing halves 11 and 12 are in assembled relation, the conductor bridge 20 and the base contact member 25 are held rigidly in place by the respective holding posts 63 and 65.
  • the said upper and lower casing halves 11 and 12 have congruent lateral extensions 77 and 78 with grooves 79a and 79b together forming a bearing 79 for the shank 80 of the rotor switch 81, said switch having an outer knob 82 and an inner rectangular actuator head 83, with the sides 84 longer than the operative shorter sides 85, said actuator head being operative- 1y positioned between said inner prongs 68 and 70 of said respective contact elements 53 and 54.
  • the said shank has an inner enlarged portion 86 in engagement with the adjacent walls 39 and 46 of the upper and lower casing halves l1 and 12, respectively, thereby to hold the switch 81 in operative position.
  • the threaded boss sections 87 of said extensions 77 and 78 are held together by the nut 88 in known manner.
  • the said extensions 77 and 78 contain opposing grooves 89a and 8% together forming a channel 89 for the line cord 29.
  • the said actuator head 83 is so proportioned that when the rotor switch 81 is operatively turned so that the longer side 84 of the actuator head is in a vertical position as illustrated in FIG. 6, the head will be spaced from and out of engagement with the adjacent prongs 68 and 70 of the contact elements 53 and 54.
  • the switch is operatively rotated so that the said longer side 84 is in a horizontal position as illustrated in FIG.
  • the operative short sides 85, 85 will be in pressing engagement with the said prongs 68 and 70 of the resilient contact elements 53 and 54 to hold said prongs in engagement with the respective adjacent fingers 60 and 61 of the said base contact member 25.
  • the said member 25, connected to the conductor 28 of the line cord 29 will be electrically connected to the respective prongs 67 and 69 within the socket shells 13 and 14, respectively, said prongs being adapted for operative engagement, in known manner, with corresponding terminals of electric bulbs within said socket shells, said socket shells being electrically connected to said conductor bridge 20 and to the conductor 27 in the manner above described.
  • fasteners such as the rivets 90, in operative engagement with the coactively positioned apertured lugs 91 of the casing halves 11 and 12, in known manner.
  • An electric socket switch comprising a two-part casing made of two separable halves, a socket shell in one portion of the casing, a switch and contacts compartment in an adjacent portion of the casing, said halves having mutually engaged and separable transverse walls defining said portions, a resilient bent contact element held clamped between said walls, said contact element having a first contact prong operatively extending into said shell and a second contact prong extending into said compartment, a first contact member electrically connected to said socket shell and having a portion thereof in engagement with a wall of one of said halves, a second contact member having a portion thereof in engagement with an oppositely disposed wall of the other of said halves, two holding posts extending from said respective oppositely disposed walls and in engagement with the said respective oppositely disposed contact members and holding them in engagement with the corresponding adjacent walls, said second contact prong being in adjacent coactive relation to said second contact member and nonnally out of engagement therewith, a switch member within said compartment and movable between two limiting positions.
  • said switch member being in coactive relation to said second contact prong and being so proportioned and positioned that when it is in one of said limiting positions it will engage and move said second contact prong into yieldable engagement with said second contact member, said first and second contact members having portions adapted for connection to a source of electrical current.
  • An electric socket switch according to claim 2, one of said transverse walls having a recessed portion, the other of said transverse walls having an extension extending into said recessed portion, one of said transverse walls having along an edge thereof a notched portion, said contact element extending through said notched portion.
  • An electric socket switch comprising a two-part casing made of two separable halves, said casing having two op positely positioned end portions and an intermediate switch and contacts compartment.
  • the said halves having two correspondingly spaced transverse walls, the two walls of one half being in separable engagement with the respective corresponding two walls of the other half, said mutually engaged pairs of walls defining said end portions and said compartment, a resilient bent contact element held clamped between each pair of said mutually engaged walls, each of said contact elements having a first contact prong operatively extending into the adjacent one of said shells and a second contact prong extending into said intermediate compartment, said socket shells being electrically connected to each other, a first contact member electrically connected to said shells and having a portion thereof in engagement with a wall of one of said halves, a second contact member having a portion thereof in engagement with an oppositely disposed wall of the other of said halves, two holding posts extending from said respective oppositely disposed walls and in engagement with the said respective oppositely
  • an electric socket switch according to claim 4, the said socket shells being mechanically connected by mutually engaged strips extending from said respective shells across said compartment, said first contact member being attached to said strips and having a portion thereof extending transversely across said compartment and in engagement with a wall of one of said halves, the said second contact member having a base portion in engagement with said oppositely disposed wall of the other of said halves, one of said holding posts being in engagement with said transversely extending portion of said first contact member, the other of said holding posts being in engagement with said base portion of the said second contact member.
  • said first contact member being of inverted U-shaped configuration with one leg thereof attached to said strips, the opposite end thereof having a first electric wire terminal, and the connecting bar thereof being the said portion of said first contact member engaged by one of said posts, whereby said first contact member constitutes a bridge member between laterally opposite sides of said casing, the said base portion of said second contact member having an arm with a second electric wire terminal, said terminals being in spaced relation.
  • said base portion of said second contact member having two opposite upstanding fingers in adjacent coactive relation to said second contact prongs of said respective bent contact elements.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Connecting Device With Holders (AREA)
  • Tumbler Switches (AREA)
US65998A 1970-08-21 1970-08-21 Electric socket switch Expired - Lifetime US3600534A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6599870A 1970-08-21 1970-08-21

Publications (1)

Publication Number Publication Date
US3600534A true US3600534A (en) 1971-08-17

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Application Number Title Priority Date Filing Date
US65998A Expired - Lifetime US3600534A (en) 1970-08-21 1970-08-21 Electric socket switch

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US (1) US3600534A (OSRAM)
DE (2) DE2114410A1 (OSRAM)
GB (1) GB1298183A (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19612279C2 (de) * 1996-03-28 1998-07-09 Murjahn Kg Vlm Gehäuse, insbesondere Fassungsgehäuse für Glühlampen mit Schraubsockel sowie Verfahren zur Herstellung eines derartigen Gehäuses und Vorrichtungen zur Durchführung des Verfahrens

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1743374A (en) * 1925-03-07 1930-01-14 Pass & Seymour Inc Center contact for sockets
US2505518A (en) * 1948-06-24 1950-04-25 Monowatt Inc Key lamp socket
US2799743A (en) * 1955-06-29 1957-07-16 Mc Gill Mfg Co Multiple lamp sockets, switch, and housing
US3288959A (en) * 1964-09-29 1966-11-29 Smith & Stone Ltd Lampholder with current tap

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1743374A (en) * 1925-03-07 1930-01-14 Pass & Seymour Inc Center contact for sockets
US2505518A (en) * 1948-06-24 1950-04-25 Monowatt Inc Key lamp socket
US2799743A (en) * 1955-06-29 1957-07-16 Mc Gill Mfg Co Multiple lamp sockets, switch, and housing
US3288959A (en) * 1964-09-29 1966-11-29 Smith & Stone Ltd Lampholder with current tap

Also Published As

Publication number Publication date
GB1298183A (en) 1972-11-29
DE7111307U (de) 1975-07-24
DE2114410B2 (OSRAM) 1974-09-19
DE2114410A1 (de) 1972-04-06
DE2114410C3 (OSRAM) 1975-04-30

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