US2074879A - Combined socket and reflector - Google Patents

Description

March 23, 1937. l* 1 WERlTZ 2,074,879

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UNITED STATES PATENT G FFICE 2,074,879 COMBINED SOCKET AND REFLECTOR John Wertz, Cicero, Ill. Application September 11, 1935, Serial No. 40,183 4 Claims. (Cl. Zim-6) vThe invention relates to electric light fixtures, casing-reflector is stamped in one piece from and particularly to lamp socket structures for sheet metal, being U-shaped in cross section confined situations, and to lamp sockets for use throughout its length, and the ends Comprising in connection with reiiector devices which closeintegral semi-circular continuations of the sides.

-5 Ely-embrace the lamp, to the end that lamps may The bottom is curved for proper `reflection and 5 be removed from confined situations with ease, the edge iS DIOVided With an outtlli'ned flange ll safety, and despatch. adapted to serve as a stop and support in mountt'is a particular aim of the invention to coming the Xture. Midway of the length of the bine thelzfiunctioncf a swinging socket and switch casing a mounting block l2 of insulating mate- `l tothe ,end that in moving a light or socket to rial is secured to the Vbottom ofthe casing- The l0 position for removal or insertion of the lamp, body Dori/ion of the block iS a naliOW, longitudi- -the socket will be disconnected `from the lighting nally extending Wall, longitudinally disposed and eireuit and risk of vsnoei: or injury ebviated. affording a Space on each Side thereof Within the An vimportant object ef the invention is .to casing to accomodate wires and terminal parte limpr-ove the construction of such an appliance mounted on the block at each s ide. The outer 15 to :the end that construction of a novel kind will or top longitudinal face of the block lies inwardly .be presented, `which may Joe manufactured with of the plane of the flange Il slightly. The block a `:mi nismurn of `expense for material and opera- 'may be moulded of any suitable plastic, nsuch as tiene., nd wherein the ,mounting of the appliporeeIain, or otherwise-formed Seouredto oppo- :ance in -ritiri-,ng `jobs 4may pe carried out by the site sides of the wall vI3 there are sheet metal 20 yordinary-vvorkrnan with a minimum of labor, and, contact and framing plates It and l5 insulated with a requirement for mounting and from each other, the -plate l5 being `formed with attaching `fixtures of'speeial or other kinds. a Contact flange l5' at each end, both bent at A vnovel `feature of invention lies in means for right angieS `aoi'oSS the oppoiteends 0f the'biook.

'2,5 .holding the movable soket -yieldingly in normal being ,Set in .Channels formed `0n the ends of the 25 operative lposition butireely movable manually wall I3 to receive them. In this way there is i @imperative pgsitpn, vWhere the lamp may `be provided a portion of insulation outwardly of removed, or it :may receive a new lamp. and flush with the flange I5. 'I'hese contact Additional objects, advantages and features faced SO formed, i12-Vean aperture therethrough of invention lie in the construction, arrangement, near the Olle O1 'top edge 0f the Wall |,3- The 30 andcombination ofpartsinveivedinthe embodimetal of the plate I4 is out away at the medial ment of the invention, as will appear from the part next the outer longitudinal edge of the block, following `description .and .accompanying drawto permit mounting of switch and receptacle 'ings-,disclosing one of the spossible embodiments members to be secured to the block. Each `plate 1'35 of the invention, and wherein is held by screws engaged through the wall 3 35 'Figure lis ,a front ,View 4oi l,a two-light unit ,from the opposite side, the screw heads 'being embodying my invention. countersunk. The `plate l5 has material removed Figure 2 .-,is .a longitudinal section thereof on to a greater depth. `lhe.1.ine2-,2 of `Figure ,1. Two lamp-and-switch receptacles I are pro- 40 Figure 31s aside elevation ofthe unit lwith the vided, which may be of identical form, if de- 40 .ifeeotoriin lsection ,and part of one socket in sired, and consist of .an insulating body prefi leoilion, l erably of a moulded plastic having a socket in .Figlmeifi iS ,aeiiieelevation ofthe complete unit. the outer end, the Wall ,di'OiJ-id thisbeing Ciiilidfi' "jEigure15isl asection on the line 5-5 `of Figexcept at the outer side where it is extended 'lire 3. slightly and iiattened in a lplane parallel to that 45 Eigllie .6 iS a cross Section on the line ,iiof of the flange Il), thus providing a broadened `face .Eigillo 12.-. l with flat sides. The socket I1 in the `outer end Figllle `.7 Lis a lSim'lar View on the line 1-1 `of of each receptacle is ,of a size to set in ,the casing Figure .13.V i at one end outwardlyof the block L2 on the prop- '50 Figure ,8 ,is an .inner elevation of one of the er axis of `focus of the reflecting surfaces, and 50 SQQKG'G .members detached. set in each socket there is the usual threaded ref `Thereisillustrateda ,trough-likereflector body ceptacle sleeve `I8 Voi metal. The head or in,- `Ll), which `at the Same time constitutes a casing ner end of the sleeve is open and flanged at the .for 'the twcelamp .unit shown. One lamp ,recep-A sides next the bottom of the socket as at IB, as "'55 tacle only may be incorporated if desired. This is familiar. The material removed from the 55 opening of the inner end of the sleeve end is retained in integral jointure with the sleeve and bent longitudinally from the sleeve forming a flat lug 20 so that it may project through a corresponding slot 20 in the inner end or head of the socket, Either as a continuation of this or joined thereto as shown, there is a switch blade and retaining member 2|, which if applied may be of thicker metal, and is offset a little, so that it cannot be drawn outward through the slot. Within the opening in the head of the sleeve there is a Xed center contact 22 of familiar form held by the axial bolt 23. The inner end of the receptacle is formed with a recess 24 opposite the socket, and spaced from the lug 20 and blade, in which there is set snugly the base of a switch arm 25, bent over its base and normally bearing against the contact ilange I5. The switch arm is formed with a nodule 26 adapted to engage yieldingly in the aperture in the ilange I5 and serving as a means to prevent the opening of Ythe switch casually. The bolt 23 is extended through the base of the switch arm 25 and receives a nut as shown whereby the arm 25 and contact 22 are held in assembly. An additional slot 21 parallel to the one 20 may be formed through the head of the socket of the receptacle on the opposite side of the axis of the receptacle from the one through which the lug 20 is engaged, though only one slot is used in each receptacle. This permits the receptacle bodies to be used interchangeably, however, as one slot is used at one end of the device and the other slot is used when the receptacle is mounted at the other end of the device.

The body of the receptacle is formed with a plate 28 projected longitudinally from its inner end over the outer side of the wall I3, this plate being flush with and formed as a continuation of the attened side of the receptacle body. On the inner side of the plate 28 near its extremity a pivot yoke 29 yis secured by screws 29 extended from the outer side of the plate 28. The yokes are U-shaped and have ears extending on each side of the wall I3, suitable pivot pins being engaged through the ears and wall I3. The ears on the yokes 29 are long enough to allow the plate 28 to clear the wall I3 suiiiciently for the pivotal movement of the receptacle, as desired.

Two receptacles are pivoted on the block I2 extending in opposite directions and the pivot pins are likewise sufiiciently spaced longitudi- On each receptacle a spring plate 30 is mounted on the outer face of the plate 28, being held under the screws 29', and these plates are projected beyond the extremities of the plates 28 and curved inwardly so as to form leaf springs 3| which bear against and yieldingly oppose each other when either receptacle is vswung outward. This is intended to cushion the stoppage of the swinging movement of the receptacles, and minimize liability of breakage of the wall I3. By using material in the plates 30 of the same width blades 2|, screws 33 may be engaged through the wall I3 and into the plate l5 to retain the same, While at one end, the screw 33 may also hold a wire binding terminal 34, supplemental fastenings being provided for the latter as required,I

a screw 33 being shown. Ovei` the more recessed central upper edge portion of the plate I5 a screw 34 may be engaged through the wall I3, holding a central wire binding terminal 35 and the plate I4 together and against the block I2. Due to the clearances between the wall I3 and sides of the casing I0 insulated wires 36 may be laid in the casing beside the wall I3 and secured in the terminals.

Suitable openings may be made medially in the sides of the casing to pass the wires outwardly therethrough, as indicated in Figure 4.

In the assembly of the device the blades 2| are both disposed at the same side of the device, and arranged to engage respective end porw tions of the plate I4, which is apertured in its upper part where the blades overlap it, and each blade is formed with a nodule to engage the aperture, making for better contact as Well as effecting yielding retention of the switch in closed position. The blades 2| stop short of each other sufliciently to enable ready mounting of the wire terminal therebetween.

In use, the device being assembled as described,

the fixture may be mounted in various conned locations, as, in reading lamps, show window xtures, show case corners, in drawers, refrigerators, etc. Being secured in place, the receptacles are alternately operated by grasping the sides of the broadened side of the receptacle body and drawing it outwardly from the case IIJ, to the special or open position, so that the lamp 31 may be inserted. This done, this receptacle is pressed back to normal position and the operation repeated with the other receptacle. As each receptacle is drawn outward, the switch blade 2| moves outward on the plate I4 without clearing it however. while the switch arm rides on the insulation outwardly of the contact flange I 5 on the end of the will engage outwardly oi' the angle between the top or outer edge face of the wall I3 and the end face thereof to yieldingly hold the receptacle in open position conveniently i'or removal of the lamp or replacement thereof. The engagement 7 means to form electrical connection therewith, a

receptacle pivoted on the body to swing from juxtaposition with one face toward the other, a resilient wiper on the receptacle having movement toward and away from the axis of the pivot and including resilient means to press the wiper on the contact, and a second contact on the body spaced from the iirst and adjacent said axis, a contact on the receptacle to liebeside the second contact on the body, said two last named contacts including resilient means to bear them together in a direction parallel to said axis, and being o1' an extent to remain in lapping contact throughout movement of the receptacle, said wiper having a prominence thereon to engage the angularity between the irst named two faces to oppose move'- ment of the receptacle on its pivot at certain stages of its movement, and electrical connections for said contacts on the body.

2. In a device of the character described, a body base member, two receptacles pivoted thereon for wail la. At the outermost position the nodule 2s 140 movement alternatively from normal positions to open positions in a common vdirection but extending in opposite directions from their pivots, and having parts convergently movable relatively on 5 operation of either receptacle from normal toward open position, and resilient means interposed between the last named parts for coengagement for the purpose described.

3. In a device of the character described, a body 10 member having an elongated Wall projecting therefrom, said wall having end faces and an edge face, a contact in the end faces, means to form electrical connection therewith, a receptacle pivoted on the body `adjacent each end face to 15 swing from juxtaposition with respective end faces toward the edge face, a resilient wiper on each receptacle for engagement with respective contacts, a second contact on the Wall terminating adjacent the end faces of the wall, a contact blade Q0 on each receptacle cooperable with the second contact, the blades being of a length to remain in lapping contact throughout movements of the receptacles, releasable means between respective' v blades and the contact for holding the receptacles 2i in normal positions, and electrical connections for the second contact.

4. A lighting fixture comprising a trough-like reflector having its side portions cut away for admission of electrical conductors, a body member mounted within the reflector adjacent the out away portions and including binding posts for attachment of the electrical conductors, a wall on the body member, said wall having end faces and an edge face, a contact in the end faces in electrical connection with one of the electrical conductors, a receptacle pivotally mounted on the body adjacent each end face to swing from juxtaposition with respective end faces toward the edge face, a resilient wiper on each respective receptacle for engagement with respective contacts, a second contact on the wall terminating adjacent the end faces of the wall and in electrical circuit with the other electrical conductor, a contact blade on each receptacle cooperable with the second named contact, the blades being of a length to remain in lapping contact throughout movements of the receptacles, and releasable means between respective blades and the contact for holding the receptacles in normal positions.

JOHN WERITZ.

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