Abstract: A C-type light bulb socket for outdoor use is provided having a plurality of apertures arranged on the socket shell draining water therefrom. Therefore, the potential danger of a short circuit caused by accumulated water is eliminated.

Abstract: A press-contact connector assembly for a socket joint of a lighting fixture includes a press-contact electrode including a box-shaped body, a press-contact blade on one end of the box-shaped body, the press-contact blade having two opposed press-contact portions which extend away from the box-shaped body and form an axial slot therebetween for receiving a cable, and a power supply terminal on the other end of the box-shaped body. The assembly further includes a casing having a hood for receiving a lighting fixture electrode, a cylindrical portion for holding the press-contact electrode so that the power supply terminal contacts with the lighting fixture electrode in the hood, and a guide portion for defining a guide path to introduce the cable into the axial slot of the press-contact blade.

Abstract: A safety lamp socket in which the center metal contact plate is fastened to a first through hole on the socket body, having a flanged transverse head at one end fastened to a retaining groove inside the first through hole, a pointed upright tip disposed outside the first through hole for piercing the electric wire to make electrical contact with one conductor thereof, and a springy tail at an opposite end disposed inside the socket body and supported on at least one first inside projecting bearing portion inside the socket body for contact with the tip contact of the lamp bulb.

Abstract: The present invention relates to a Christmas lamp socket. The socket mainly includes a housing member and an affixing part. The affixing part has a pair of opposing erection parts to be fitted into, and secured by, a pair of corresponding elongate trenches on the inner circumference of the housing member. The housing member has two holes on a mediate portion. The holes communicate with cords held between the mediate portion and a bottom of the housing member. The affixing part is fitted with two conductors which pass through the holes of the housing to connect with wires of the cords.

Abstract: A decorative lamp holder has a bulb on a socket shell. The socket shell comprises an interior, an inserted groove formed on an inner periphery of the socket shell longitudinally, an outer recess at the bottom of the socket shell, an inserted hole and a positioning slot formed at the bottom of the socket shell. The upper portion of the inserted groove has a C-shaped groove. The bottom of the inserted groove has a rectangular groove and an outcurved groove adjacent to the rectangular groove. A solid shortened copper plate is inserted in the inserted hole. A rigid, hollow elongated copper plate is inserted in the inserted groove. The elongated copper plate has an elastic plate at the outer periphery of the elongated copper plate, two laternal protrusions at the lower portion of the elongated copper plate, and a sharp end. A socket cap is inserted beneath the bottom of the socket shell.

Abstract: This water-proof lamp socket structure includes a lamp socket, a ring body, an upper cover, and a water-proof ring. The lamp socket is constituted by two semi-cylinders in relative position, with a fluted penetration hole formed at both sides of its bottom. An interior wall of the lamp socket has inner threads and its exterior has a ring body. A curved groove is formed at an upper portion to accommodate a wire. The bottom upper cover inside the groove has a sharp nickel plate which a bottom upper cover with the same curved groove is placed on top of in order to penetrate the wire by the nickel plate for conduction. The bottom of lamp socket is encased with a slight trapezoidal water-proof ring. The water-proof ring is clicked into holes at both sides of the lamp socket by two catch blocks at its top in order to fix it inside the lamp socket so that it will not easily fall off.

Abstract: An improved decorative lamp strip comprising a three-strand flat electric wire, some main sets, some fixing plates, some sets of series connected conductive piece, some sets of a first parallel connected conductive piece, some sets of a second parallel connected conductive piece, some lamp seats and some bulbs with tungsten filament in general or some LED bulbs, wherein the falt electric wire comprises a middle strand series connected conductor and an upper and a lower strand parallel connected conductors, a plurality of holes are punched on the electric wire body, and each punched hole breaks the middle strand conductor, each main seat is installed in the position of each punched hole on the flat electric wire to engage with a fixing plate, and to let any one set of conductive piece installed on the main seat thrust into the middle, upper or lower strand conductor of the flat electric wire so as to combine a decorative lamp strip.

Abstract: A Christmas tree light system including an electrical receptacle connected to power supply, and electrical wire having an electrical plug at one end connected to the electrical receptacle, and a plurality of lamp sockets respectively connected to the electrical wire to hold a respective bulb, wherein each lamp socket has an insulative plate supported on a spring member and forced upwards by it to disconnect a metal connecting plate from the center metal contact plate, which is adapted for contacting the tip contact of the bulb; the electrical plug has a cartridge fuse for overload protection, and protective means for shielding the conducting blades of the cartridge fuse; the electrical receptacle has movable stop means forced by spring means to block the way between the blade insertion slots and the electrical terminals.

Abstract: A water-tight lamp socket which includes a rubber packing ring mounted around the socket body and having two recessed portions disposed at two opposite ends of the wire groove on the socket body, two water sealing retainers respectively mounted around the electric wire in the wire groove of the socket body and set in the recessed portions of the rubber packing ring and held down by the socket cap of the lamp socket to seal the gap of the wire groove, and a water sealing ring mounted within the socket body to seal the gap between the socket body and the lamp bulb.

Abstract: A lamp bulb socket include a socket body having a bore to receive therein the base of a lamp bulb. An inner threading is provided on a surface of the bore which is defined by a helical slot surrounding the bore intervened with a helical rib. A chamber is provided in the socket body to be in communication with the bore through access openings defined by portions of helical slot. A cylindrical neutral contact member is received within the chamber to be contactable by the base of the bulb through the access openings. The neutral contact member is retained within the chamber by portions of the helical rib that are intervened between the access openings. The socket body has a central through hole formed on the bottom thereof to receive therein a cylindrical hot contact member with an inner end of the hot contact member exposed within the bore.

Abstract: A holder for a lamp bulb comprises an insulating housing having a terminal receiving part and a socket for the lamp bulb. The terminal receiving part defines first, second and third terminal receiving cavities opening into a terminal receiving end of the housing. One of the cavities receives an electrical terminal having a spring contact beam projecting into the socket for engaging one contact of the lamp bulb, and a slot receiving one lead of a diode. Another of the cavities receives an electrical terminal having a slot for receiving the other lead of the diode and a further slot for receiving a first supply lead. When these two terminals have been inserted into their cavities, a third terminal is inserted into its cavity, after the leads of the diode have been securely lodged in the diode receiving slots of the first two terminals. The third terminal has a spring contact beam which projects into the socket for engaging the other contact of the bulb, and a slot for receiving a second supply lead.

Abstract: A unitary lampholder (10) including a lamp socket (12,14) as well as a multi-position switch which can take the form of a three-way, two circuit switch for operating a two filament lamp, a single circuit switch for operating a single filament lamp or arranged to permit the switch to be operated from a remote point. The lampholder has a bottom housing (14) and a top housing (12) which includes an access door (16) which is slidably and rotatably mounted to the remainder of the top housing by a guide member 54 which moves within slots (93,95) and permits the access door 16 to be rotated from a position on and perpendicular to the top housing axis to one parallel to that axis in which position it can be slidably moved towards the bottom housing, projections (160,162) on the base of access door force insulated conductors (92,94) into the insulation displacing terminals (86,88) of the contacts (60,62) to make electrical contact therewith.

Abstract: This invention relates to a safe light bulb socket structure mainly used for a C7 or C9 type light bulb. The socket shell of the socket structure according to the invention has an extended thin non-rigid sheet or an extended thin displaceable rib formed on its top and a thin annular appendage integrally molded on the opening at its lower end. When the socket shell is assembled with a light bulb and a socket cap, the thin sheet and the thin annular appendage will fill all leaks at the joining area, producing a watertight effect. In addition, two contact plates are arranged parallel to the electrical wire trench of the socket, with the upper ends thereof piercing into the plastic sheath of electrical wires and the lower ends thereof touching the tip and the ring contacts of the light bulb respectively. With this arrangement, the bad influence of contact plates on the joining of the socket shell and the light bulb, which is frequently found in a prior art socket structure, can be avoided.

Abstract: A lamp socket including a socket body to hold a lamp bulb, a socket cap fastened to the socket body to hold down the electric wire, a central metal contact plate and side metal contact plate fastened to the socket body to connect the tip contact and ring contact of the lamp bulb to a respective conductor in the electric wire. The side metal contact plate has a longitudinal projecting spring strip raised from one side and then turned longitudinally downward toward the orifice of the socket body, which projecting spring strip is disposed in contact with the ring contact of the lamp bulb to give it an inward pressure when the lamp bulb is threaded into the socket body.

Abstract: A safety lamp socket including a socket body to hold a lamp bulb, a socket cap fastened to the socket body to hold down en electrical wire, and two metal contact plates mounted in a respective hole on the socket body to make electrical contact with a respective conductor in the electrical wire, wherein two metal spring plates are respectively mounted in a respective hole on the socket body and suspended below the metal contact plates, which metal spring plates are respectively forced by the tip contact and ring contact of the lamp bulb into contact with the metal contact plates when the lamp bulb is installed; the socket cap has two threaded downward plugs retained to two projecting blocks inside the socket boy for engaging the ring contact of the lamp bulb upon the installation of the lamp bulb, and a curved clamping plate for fastening to a support, the curved clamping plate having a keyhole-like slot for hanging on a wall nail, threaded portions and clamping portions for fastening the lamp socket to tree t

Abstract: A light bulb socket has a main body comprising inner threads, a longitudinal recess, a bottom plate, a through hole formed on the bottom plate, and a flange which is on top of the bottom plate surrounding the top edge of the through hole. The first conductor is inserted in the longitudinal recess. The second conductor is inserted in the through hole. Two grooves are formed in the periphery of the through hole. The second conductor has a round top, a neck, two slant fins, a transverse bar, and an end tip. A gap is defined by the round top. The second conductor is inserted in the through hole beneath the flange.

Abstract: An improved structure of Christmas light mainly includes a bottom base, a light stand as well as an alterable lamp holder. There is further a pair of first and second copper conductors, each having several triangular barbs laterally formed in order to prevent the copper conductors from moving away from the light stand and causing a short circuit. The copper conductor further has an end tip point reinforced with a groove so as to effectively puncture into the electric wires without increasing its thickness saving material cost. Taking advantage of a detachable light stand the lamp holder may desirably be changed to various lamp holders of different shapes to acheive a cosmetic effect. Furthermore, due to the structure of the vertical pole on a bottom base which has an inverted fastening head longer than that of the prior art a linking effect in snap fitting results.

Abstract: A lamp socket including a socket body consisting of a left half and a right half, wherein the right half has a base and a right half circularly arched upright wall raised from the base, the base having a rectangular slot and retaining hole in communication with the rectangular slot; the left half has a left half circularly arched upright wall supported on the base and abutted to the right half circularly arched upright wall of the right half, a locating ring at the top hooked on the right half circularly arched upright wall of the right half, a locating rod at the bottom inserted into the rectangular slot of the base, and a hook extended from the locating rod and hooked in the retaining hole of the base.

Abstract: A miniature light set comprises lamps, lamp bases, lamp holders and a ribbon cord with three or more wires. Each of the lamp holders has a socket at one end which receives a lamp base and a wireway at the opposite end. The wireway has two upstanding elongate walls which define an elongate channel for receiving the ribbon cord, and has a transverse pressing bar at each end of the channel. A pair of conductor plates are positioned in a bulb socket into which a lamp can be inserted with the lamp lead wires in contact with the plates. The other ends of the conductor plates project into the wireway and make contact with conductors in corresponding stripped portions of the wires. On the underside of a cover base are two press bits which are located between the lampholder pressing bars when the cover is installed. With the location of the snap-on cover on the lampholder, the cord is bent and retained by the pressing bits of the snap-on cover and the pressing bars of the wireway.

Abstract: A connector for electrical communication between a low-voltage lamp and an electrical cable connected with a source of low-voltage electricity. The connector has a base with two opposed sections that define a channel for receiving the cable. Distal ends of each section have threaded radially outward surfaces for receiving a threaded cap. A presser in the cap pushes the cable into piercing engagement with a pair of nails in the channel for providing electrical communication between the cable and a lamp having a pair of wires connected to the nails. A U-shaped positioner is received within the channel over the electrical cable therein for accommodating narrow gauge cable. A method of connecting a lamp to an electrical cable is disclosed.

Abstract: A safety lamp socket including a socket body for holding a lamp bulb, a socket cap fastened to the socket body to hold down an electric wire, a center contact metal plate and a side contact metal plate fastened to said socket body and disposed in contact with the positive and negative conductors of the electric wire, a center metal spring plate and a side metal spring plate spaced inside the socket body, wherein when the lamp bulb is threaded into the socket body, the ring contact of the lamp bulb becomes fastened to the screw threads of the two mounting rods of the socket cap, the center and side metal spring plates are respectively forced by the tip and ring contacts of the lamp bulb to contact the center and side contact metal plates, causing the lamp bulb electrically connected to the electric wire.

Abstract: A safely operable bulb socket structure is provided wherein a positive conductor plate is securely retained in a support assembly within the socket. The positive conductor plate is configured and retained within the socket in such manner that it forms a secure, resiliently biased contact with an electric conduction terminal of a bulb received in the socket. The resulting structure insures safe yet efficient illumination of the bulb.

Abstract: A safety lampholder has center and side contacts which are concealed and cannot easily be touched by fingers when the lamp screw base is not threaded into the screwthreads. Ring and tip contacts of the lamp screw base are disposed in contact with the center and side contacts of the lampholder when the lamp screw base is threaded into position. The inside wall of the lampholder has separated steps, which have a uniform chambered angle R meeting UL specifications and which define the screwthread for mounting the lamp screw base.

Abstract: A Christmas lamp socket is provided that includes a socket body and an inner cylindrical wall inserted into the socket body. The socket body has two opposing elongate vertically directed plates inside, an annular groove formed in an inner surface at an upper end thereof. The inner cylindrical wall is formed by two semi-cylindrical walls combined together, each wall having a vertical slot formed in an outer surface for receiving a respective one of the two vertical plates of the socket body therein. Each wall also has an annular ridge formed on an outer surface at the upper end thereof for engagement with the annular groove of the socket body to stably couple the cylindrical inner wall to the socket body. A threaded portion is formed on each inner wall to mate with a threaded metal portion of a lamp. A slot is formed between abutting vertical ends of the two semi-cylindrical inner walls for an elongate conductor to extend therein and protrude out of the slot to contact the metal screw base of a lamp.

Abstract: This invention relates to a festoon lamp holder, and to a lighting system incorporating such a lamp holder. The lamp holder comprises a molded cap and base, and forms a pressure-tight seal with the supply cable, and a water-tight seal with a removably attached globe. Between the cap and base, lugs with detents engage within a groove, and through a camming action on a tapered post, engage permanently with a retaining means, thereby locking the detents within the groove. Probes between the cap and base pierce the cable, which may be used to support the lamp holder in a festoon lighting system. The lamp may be a low voltage halogen lamp and may also be formed as a festoon bulb held perpendicular to the lamp holder by hooked wires.

Abstract: The present invention relates to a Christmas lamp set which comprises two conductors fixed inside a socket of the set, wherein above all the conductor fixed on the internal circumference of the socket is secured firmly and safely by means of a thread fencing portion and a plurality of thread retaining portions inside the socket so that the risk of its falling off or undersired connection between it and the other conductor is prevented.

Abstract: A bulb socket structure includes a socket housing to receive therein a bulb, first and second electrically-conductive members which are located within a channel formed on the socket housing to have sharpened tips thereof piercing into and forming electrical connections to a power cord extending through the channel, the first member having a U-shaped portion received within a first hole formed on the socket to be substantially centrally-located within the socket housing and the second member having an inner end inserted into a second, eccentric hole of the socket housing to partially extend into the socket housing, a support member formed inside the socket housing to hold the second member for preventing the second member from being deformed by the insertion of the bulb to short-circuit with the hot plate, and an end cap or cover releasably mounted to the socket housing to cover and confine the first and second electrically-conductive members and the power cord between the socket housing and the cover so that

Abstract: A lamp socket in which the socket body is formed of two symmetrical halves, having opposite inside flanges transversely disposed at the top, which hold two opposite ends of the positive contact metal plate, and an inside receptacle, which holds the bottom end of the negative contact metal plate, the two symmetrical halves of the socket body having opposite longitudinal ribs of substantially triangular cross section, respectively fastened together by two fastening blocks through dovetail joints to securely hold the two symmetrical halves matched.

Abstract: A Christmas light bulb socket and wiring arrangement is provided. The light bulb socket includes an insertion structure inside the outer housing of the light bulb socket and two insertable conductor strips that are securely held in place. Any loosening of the conductor strips, which could result in unsound electrical connections or hazardous situations, is prevented by the securement method. Furthermore, the light bulb socket supports all types of wire routing and placement configurations to accommodate Christmas light bulbs connected in series that are displayed to achieve a scintillating illuminative effect.

Abstract: A lamp socket of the type having a first contact metal plate and a second contact metal plate fastened to a socket body thereof, and a socket cap fastened to the socket body to hold down an electric wire causing the first and second contact metal plates to make a respective electric contact with either conductor of the electric wire, wherein two toothed locating plates are mounted within two vertical mounting holes on the socket body to mesh with the threaded base of the bulb so that the bulb is prohibited from being pulled out of the socket body in the axial direction without through a rotary motion.

Abstract: A U-shaped mounting clip for a decorative light bulb socket of the type having a base with a channel extending transversely thereacross and an electrical wire placed therein has a generally U-shaped clip body having a first leg, a second leg, an arcuate member connecting the first leg and the second leg. The first leg is configured and sized to fit securely on the channel and to hold the electrical wire in place. Alternatively, the clip may be configured to have an L-shaped body. Either or both legs of the L-shaped body may be U-shaped.

Abstract: An improved structure of lamp socket in which the socket body consists of two hinged symmetrical halves retained in shape by a hoop; the positive contact metal plate is made of L-shaped configuration mounted in the top of the socket body on the inside and supported between two inside flanges; the negative contact metal plate is a flat plate vertically laterally disposed inside the socket body and having the bottom end stopped at a receptacle inside the socket body.

Abstract: A socket assembly which includes a socket, an annular positioner and two leaf conductors. The socket includes two slots defined in a bottom and a groove defined in an internal surface. The annular positioner includes an opening defined therein and a ridge formed on an external surface. The ridge is received in the groove when the annular positioner is received in the socket to restrain rotation of the annular positioner with respect to the socket. The leaf conductors are inserted through the slots. One of the leaf conductors includes an upper tip inserted through the opening to be retained between the socket and the annular positioner to prevent bending thereof and engagement between the leaf conductors when a bulb is received in the socket.

Abstract: An improved structure of lamp socket in which the socket body consists of two hinged symmetrical halves retained in shape by a hoop; the positive contact metal plate is made of L-shaped configuration mounted in the top of the socket body on the inside and supported between two inside flanges; the negative contact metal plate is a flat plate vertically laterally disposed inside the socket body and having the bottom end stopped at a receptacle inside the socket body.

Abstract: A lamp socket of the type having a socket body to hold a lamp bulb. A socket cap is fastened to the socket body to hold an electric wire in place, and positive and negative contact plates are mounted in the socket body to connect the electric wire to the lamp bulb electrically. The negative contact plate is mounted in one L-shaped angle slot on the socket body, having a plurality of raised portions bearing against the inside wall of the socket body. A horizontal stop rod stops or rests against the socket body and a toothed projection meshes with a threaded ring contact of the lamp bulb. A locating plate is mounted in an L-shaped angle slot in the socket body remote from the negative contact metal plate, having a plurality of raised portions bearing against the inside wall of the socket body. A horizontal stop rod engages the socket body and a toothed projection meshes with the threaded ring contact of the lamp bulb.

Abstract: A lamp socket, which includes a socket body to hold the bulb, a socket cap fastened to the socket body to hold down the electric wire and having two hooked bottom retaining rods inserted through holes on a socket body and hooked on the ring contact of the bulb when the bulb is plugged into the socket body, a gasket and two spaced water sealing rubbers to seal the socket body against water, a center contact metal plate and a side contact metal plate mounted within the socket body for connection with the tip and ring contacts of the bulb, a deformable intermediate contact metal spring to connect the ring contact of the lamp bulb to the side contact metal plate. The center contact metal plate can be turned through about 90.degree. angle per step and moved from one conductor of the electric wire to another thereof to make a different contact.

Abstract: This invention relates to a C type lamp string improvement, comprising a lamp holder, a first contact piece, a second contact piece and a cord, wherein said lamp holder is such designed as to be integrally molded together. Said first contact piece and second contact piece may contact each pole of the bulb respectively, and one end of each has a sharp point for piercing the covering of the cord while contacting the core of the cord to achieve good conductivity, and said second contact piece has a proper number of projecting points at intervals equivalent to the pitches of the bulb thread to substitute for the conventional lamp holder thread.

Abstract: An electrical connection assembly for a baseless cartridge bulb includes two electrical connectors attached to a housing. The housing includes tabs which snap onto a channel partially surrounding a pair of insulated electrical cables. One end of each of the connectors includes a spring tab for accepting a loop contact pin of a cartridge bulb. The other end includes a spiked prong for piercing the cable insulation and becoming embedded therein.

Abstract: A Christmas light comprises generally a light stand, a lamp receptacle and contact means thereof. Means are provided on the bottom of the receptacle to stably embed the contact means and the power cables therein. This disclosure has been characterized in a pair of the copperflakes which have spurs to thrust into the cables to transmit electric current to an incandescent bulb mounted on the receptacle and that the cables are jammed in a oval shaped portion of a groove thereof, so as to prevent the cable from being twitched off.

Abstract: A quick mounting bulb socket is equipped with a socket body having bulb retaining threads defined in the interior of the socket body, and a pair of sharp pointed conducting pins each having a pointed piercing end which can penetrate the skin of an electric wire and make contact with the metallic conductor thereof. Electric wires are first located in wire retaining grooves and a rotation pressing knob mounted onto the socket body is turned through 90 degrees, urging the wires to abut against the sharp pointed conducting pins which will then directly contact the conductor of the wires. In this manner, the bulb socket becomes electrically wired to a power supply line.

Abstract: A lamp socket of the type having a first contact metal plate and a second contact metal plate fastened to a socket body thereof, and a socket cap fastened to the socket body to hold down an electric wire causing the first and second contact metal plates made a respective electric contact with either conductor of the electric wire, wherein a contact metal socket is fastened to the socket body on the inside through a screw joint to hold the lamp bulb, causing the ring contact of the lamp bulb electrically connected to the second contact metal plate and permitting the tip contact of the lamp bulb to extend out of a hole on the contact metal socket and to make an electric contact with the first contact metal plate, the contact metal socket having a serrated outward flange at the bottom engaging the inside wall of the socket body to secure the connection between the socket body and the contact metal socket.

Abstract: An electric lamp base system is provided. The lamp base includes a cylindrical socket with an inner threaded portion to receive a screw base lamp. One conductor of the lamp base is disposed in a groove formed through the threaded portion of the socket and has its bottom end adapted for insert into a lead wire. The other conductor of the lamp base extends vertically through the bottom of the socket to contact a bottom conductor of the lamp, and has its bottom end adapted for insert into another lead wire. A cap is provided with two upward projecting retaining members for locking engagement with openings formed in the bottom of the socket. The two lead wires are disposed within a straight horizontal groove formed in the bottom of the socket. The two conductors are located far from each other, without any possibility of mutual contact to cause a short circuit.

Abstract: A temple light including (a) a lens with a cylindrical configuration with an opening formed in a first end and a bottom formed at a lower end, (b) a bulb receiver projecting upward from the bottom of the lens, (c) a connector being mounted in the bulb receiver and defining two chambers, (d) two bulb lead contacts each including an upper section including two leaf springs and a lower section, the upper section of each bulb lead contacts being received in a corresponding chamber defined in the bulb receiver with the leaf springs holding a corresponding one of two bulb leads projecting from a bulb, (e) a connector being received in the bulb receiver and defining two chambers each receiving the lower section of a corresponding bulb lead contact, (f) two replaceable cable-piercing contacts each including a tubular upper section and a sharp lower section, the lower section of a bulb lead contact being received in the tubular upper section of a corresponding cable-piercing contact being received in a corresponding c

Abstract: A lamp socket assembly comprises: (1) a socket shell with the top end being closed by a top wall with a central opening; (2) a socket cap fastened to the socket shell for holding down an electrical wire; (3) a first metal contact positioned between the socket cap and the top wall of the socket shell, the first metal contact for making electrical contact with the tip contact of a lamp bulb and with one conductor of the electrical wire; and (4) a second metal contact for making electrical contact with the ring contact of a lamp bulb and with at another conductor of the electrical wire. The first metal contact comprises an arched portion, which is received by and protrudes through the central opening in the top wall of the socket shell to make electrical contact with the tip contact of a lamp bulb.

Abstract: A wiring connector device is disclosed for use in chandeliers and other electrical devices for eliminating the time, difficulty and expense involved in assembling chandeliers and similar lighting devices. The device includes a substrate, conductors, and several pairs of electrically conductive tines that are connected to the conductors. One tine in each pair is connected to a grounded conductor while the other tine is connected to an ungrounded conductor. A grooved clamp, corresponding to each pair of tines, channels a two conductor feeder wire from each chandelier arm into correct position over the tines and, when moved into a closed position, facilitates an electrical connection between the tines and the conductors of the two conductor feeder wire.

Abstract: This invention relates to an improved copper sleeve for lamp sockets and in particular to one including a cylindrical member integrally made of copper, said cylindrical member having a terminal at the lower portion, a slot at the vertical wall, and a hook member at the vertical wall, said terminal being formed with a curved knife point at the lower end, whereby the copper sleeve can be easily fitted in a lamp socket and rapidly connected with a wire.

Abstract: A secure lamp base includes an improved base which is provided with a slot having a bottom channel, and a groove is formed on the projection of the base. A pair of conductive slices have their inner ends to be a hook having two sideways tips, the hook of a conductive slice is inserted into the channel and the other is engaged with the groove, that provides a firmly engagement between the conductive slices and the base and promises a well electrical connection when the base receives a lamp from its opened side.

Abstract: An improved connecting structure of a series-parallel lighting string comprises a base having provided on the connecting end thereof three semicircular grooves, in which the in-between one sits on a lower position than the others, to receive three lead wires arranged in a triangular array so that a conventional structure constituted of a base and a top cap that accommodate only two wires can be adapted for more wires, significantly widening the scope of its applications.

Abstract: A socket carries a lamp and is mountable into an opening of a circuit plate to make a connection between the lamp and a circuit of the circuit plate. The socket comprises a body in which electrical terminals are mounted. Wires which are joined to the lamp are connected to the electrical terminal. The electrical terminals make electrical contact with the circuit when the socket is inserted into the circuit plate. Each terminal includes a contact portion projecting forwardly from the body, and a shank portion mounted in the body. The contact portion has a through-slot therein such that the contact portion presents two relatively movable contact surfaces on opposite sides of the slot. The shank portion includes two slots for receiving and tightly gripping the wire.

Abstract: A lamp socket comprised of a socket shell, a socket body fitted into a socket shell to hold a lamp bulb, and a mounting device fastened to the socket shell to hold the electric wire of a light string, wherein the socket shell has stop blocks to stop the socket body from rotary motion relative to the socket shell; the mounting device has bottom blocks pressed on the electric wire against the socket shell; the socket body has two opposite projecting strips inserted through holes on the socket shell and respectively bent inward to hold down the electric wire.