US1774452A - Lamp structure - Google Patents

Description

Aug. 26, 1930'. n A J. A. o-NE|L. 1,774,452 v LAMP STRUCTURE Filed Dec. 2, 1927 Inventor- Y James A. ONel,

His Attorrwe.

Patented Aug. 26, y 1930 rimase i ,af-rsi* reis vUnire s'rA'res JAMES A.k oNEin.

OF, LYNN, ,MASSACHUSETT ASSIGN'OR. T0 GENERAL vELECTRIC CGMPANY, A CGRPORATION OF NEW YORK i LAMP STRUCTURE Application led December 2, 192'?, Serial Ne. (237,281. Renewed. May 19, 1930.

My invention relates to lamp structures. More particularly it relates to a type of struc- Vture which is adapted for use in connection with electric lamps. More particularly the type of structure is especially adapted for use in connection with the so-called highway lighting units. Among the ob]- ects of my inf vention are to provide improved meansfor mounting thecanopy of the unit, to provide lofimproved means for mounting a light-modifying element within the unit such as a socalled refractor, or a reflector, or the like. However, the various features of the invention will be more readily understood from 15 the following specification and claims, reference being had to the accompanying drawing in which F ig. l shows the upper portion of the lighting unit comprising the features of the invention. This figure is shown partly in section. Fig. 2 is an enlarged plan view of the elements of the mounting means inside of the globe with the canopy removed. ln this view is shown the supporting structure of the canopy holder and of the refractor holder. which structure in turn is supported upon the rim of the globe of the unit, only a portion of the globe being shown in dotted lines. Fig. 3 shows the canopy holder and its supporting structure in perspective. The

30 dotted lines indicate the canopy holder in its raised position to enable the removal of the refractor elements from the supporting structure.

Referring more in detail to the drawing it will be seen that the unit is provided with a canopy 2 and aglobe 3. l/Vithin the globe is located an electriclamp 4, which lamp is surroundedby a light-modifying element 5 which may be in the form of the well-known refractor. In the type of unit shown the globe supports a ring 6 which may be of any .suitable material such as metal. This ring is provided with a number of L-shaped elements 7, 8, 9, by means of which the ring 6 is hung upon the rim of the globe. The elements are provided with screws 10, 12, 11 respectively by means of which the element 6 is clamped to the rim of the globe. The ring 6 is further provided with a hinged strut 50 element 13 for supportingthe canopy 2. The

4 as well as the globe o.

clement 13 is provided at the top with a stud ll.y lt ywill be seen that the upper end of the stud is threaded in order to receive the pinnacle 15. This pinnacle is used for clamping the canopy 2 against the globe 3. It will be seen that the strut 13 is hinged on one side of the-ring, Fig. 3, and on the opposite side this .strut may be latched in an opening in the element 6. Referring to Fig. 1, it will be seen that the refractor element 5 is supported by the element r16 which in turn is provided with a stud 1'?, the latter being if desired spot-welded or otherwise secured to the elenient 16. The studi?, furthermore, is provided with a nut 18 `to which there are secured'three slanting radial arms 19, 20, 21,

the arms beingk secured to the nut by `means of screws 22, 23, 241, respectively. The for-Y ward ends of these `arms are provided with ` adjustable elements 25, 26, 2'?, respectively,

which elements when once adjusted are clamped to their respective arms rby means of the screws 28, 29, 30, respectively. The elen from slipping off of the ring. i Qtlierwise the refractor 5 might fall and strike the lamp Y in order to 'lock the nut 18 I provide thestud 1T with a wing nut 81. lt will be seen, tiercfore, that with -the type of unit described after the strut 13 ydo so. Furthermore, by the provision of the wing Vnut 31 and of the nut 1S the position of the refractor 5 maybe adjusted with respect to the lamp 4t.

It will be seen, therefore, that .I provide a new structure for a lighting` unit which is simple, cheap to construct, and which gives ready access to the internal sections of the unit with a minimum amount of inconvenience. The new type of construction makes the lamp itself readily accessible in view of the easy and ready meansfor enabling the removal of the refractor and its supporting structure.

It will be understood that Whereas I have disclosed my invention b v illustrating a speciic embodiment in the drawing, I do not Wish to be limited to the particular structure shown and described, inasmuch as I contemplate variations and modilications Within the scope of the claims contained herein.

TWhat I claim as new and desire to secure by Letters Patent of the United States, is

1. In a lighting unit, a globe having an opening, a ring, means for supporting the ring in said opening, a canopy, means for securing said canopy to the globe, said means comprising an arch with one end thereof in engagement with said ring at one point and with the other end thereof in engagement with the ring at another point, said canopy being provided with a top opening,

a pin at the top of the arch which projects through said opening, a pinnacle element, and means for fastening the pinnacle element to said pin over said opening in the canopy.

2. In a lighting unit, a globe having an opening, a ring, means for supporting the ring in said opening, a canopy, means for securing said canopy to the globe, said means comprising an arch with one end thereoiC in engagement with said ring at one point and With the other end thereof in engagement with the ring at another point, one of said ends being hinged to the ring and the other of said ends detachably engaging the ring, said canopy being provided With a top opening, a pin at the top of the arch which projects through said opening, a pinnacle element, and means for fastening the pinnacle element to said pin over said opening in the canopy.

3. In a lighting unit, a globe having an opening, a ring, means for supporting the ring in said opening, a canopy, means for securing said canopy to the globe, said means comprising an arch with one end thereof in engagement with said ring at one point and with the other end thereof in engagement With the ring at another point, said canopy being provided With a top opening, a pin on the arch which projects through said opening, a pinnacle element, means for securing Vthe pinnacle element to said pin over said opening in the canopy, and means for supporting a light-modifying element in position Within the globe, said means comprising a spider element with radial arms supported by said ring.

Ll. In a lighting unit, a globe having an opening, a ring, means for supporting the ring in said opening, a canopy, an arch supported by said ring, said canopy being provided With a top opening, a pin on the arch which projects through said opening, a pinnacle element, means for securing said p1n-

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