US1680788A - Metal collar for luminaires - Google Patents

Description

Aug. 14. 1928.

w. A. INGLER METAL COLLAR FOR LUMINAIRES Filed July 24, 1926 INVENTOR jham ATTORNEY Patented Aug, 14, 1928.

UNITED STATES PATENT OFFICE.

WILLIAM A. INGLER OF NEWARK, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TO HOLOPHANE COMPANY, I NC., NEW YORK, N. Y., A CORPORATION OF NEW YORK.

METAL COLLAR FOR LUMINAIRES.

Application filed July 24, 1926.

The present invention relates to metal collars for luminaires and is more particularly directed to a metal collar suitable for supporting street lighting luminaires.

The present invention contemplates a metal collar suitable for use with asymmetric retracting luminaires which, when placed near the. curb, light up the road or street effectively and at the same time keep buildings in comparative darkness. Where such luminaires utilize two glass envelopes, such as shown in Dorey Patent-1,554,563, granted September 22, 1925, these envelopes may be provided with interengaging parts which fix the angular positions of the glass envelopes relative to one another, or other means for insuring apredetermined alignment of parts may be used. This double glass cover will be supported about the. light source and so placed that a small amount of light is directed toward the buildings while the most of the light is directed onto the road or street. An object of the present invention is to provide a 'metal collar for clamping such glass envelopes together as well as to provide a carrier or support for them in which they may be orientated. as a unit after the collar has been secured in the fixed support such as a part of the lamp standard. A further object of the present invention is to provide a luminaire and support such that the parts may be kept in predetermined alignment and supported in a standard or the like in the proper position.

for effectively. illuminating the street.

' By employing the present invention, it is possible to easily assemble and construct a luminaire intended for asymmetric light distribution which may be readily mounted in the lamp standard or other support and turned to the correct position for proper illumination in the desired direction.

The accompanying drawings show, for

purposes of illustration, two of the. many possible embodiments in which the present invention,may take form, it being understood that the drawings are illustrative of the invention rather than limiting the same.

In these drawings:

Figure 1 is a sectional view through a luminaire showing one form of metal collar;

Figure 2 is a sectional view, with parts in elevation, showing the collar on an enlarged scale;

Serial No. 124,632.

; Figure 3 is a sectional view of a clamping rmg; V. a

Figure 4 is an enlarged detailed View of a fragment of the collar; and Figure 5 is a view similar to Figure 2 illustrating a modified 'form of construction. The outer and inner glass envelopes of a street lighting luminaire are indicated at 10 and 11. These glass envelopes may have the general shape and optical properties of the lumin'aire shown in the Dorey Patent #1,- 554,563 above referred to. Typical desired distributions of this type of luminaire are so designed that most of the light is directed onto the street, only a small portion being permitted to escape toward the buildings so that they will be kept in semidarkness. The invention is, however, equally applicable to any vdouble glass envelope intended for asymmetric or special distribution.

According to the construction shown in Figures 1 to 5, the two pieces of glass may be held in proper angular position relative to one another by a number of cooperative lugs 12 and recesses 13 carried on the out; side of the inner envelope and the inside of the outer envelope. As here shown these lugs and recesses are at the top, but they may be placed many other convenient position. These lugs are so arranged that the glassluminaires must'be assembled in a predetermined angular position and so that they can not be turned out of place.

A metal supporting member or collar 14 passes up through the openings in the glass envelopes. This collar may be in the form of a sheet metal stamping, and is flanged in the lower end, as indicated at 15, to engage underneath the inner surface of the inner envelope. It is threaded near the upper end as indicated at 16 so as to engage with a supporting fixture provided with a threaded-coupling. The extreme upper end of the metalsupport'ing member 14 may be flanged inwardly as indicated at 17 to provide stiifness. in order to space the flange 15 of the supporting member, from the glass so that it can .be revolved more readily, the,

readily. A ring 19, having I a depending flange arranged to pass down around the outer upper end of the outer envelope 10, is slitted and stamped to such shapethat it may be threaded down along the threads 16 on the collar. The 'ringis threaded in place and then soldered as indicated at 21 to the collar to prevent removal.

A modified form of construction is indicated in Figure 5. A tubular metal supporting member or collar is provided with a slot or notch 31 to engage with :1 lug 32 extending inwardly from the glass while the upper end of this collar is threaded as indicated at 33. A ring 34 has a downwardly extending flange 35 notched as indicated at 36 to cooperate with lugs 37 on the outer glass envelope. The rin 34; and collar member 30 are non-rotatabl connected as, for example, by a lug 38 which extends into a keyway 39. A ring is threaded onto the outside of the collar 30 and is brought down tightly against the ring34 to secure the parts together. This ring 40 also provides a holding member for the definite alignment of the 'luminaire. This may be accomplished by providing a lug ll-which extends upwardly from the ring 34 to engage some fixed part of the support.

When a luminaire provided with the metal collar such as shown in Figures 1 to 5, inclusive, is assembled, it is ready to be installed in the'fifiture. The unit may be threaded into place in the fixed support and the metal parts clamped in place in any suitable manner. When the metal parts are held non-rotatably, one can turn the glass relative to the metal so as to bring it to the proper position to direct the light rays as desired. 7

It is obvious that the invention may be embodied in many forms and constructions, and it is to be understood that the particular forms shown are but a few of the many forms. v a

What is claimed is:

1. In combination, a luminaire having an inner glass envelopeand an outer glass envelope, the two envelopes having prisms for distributing light rays in a'predetermined manner, a tubular metallic support passing upwardlyv through'the luminaire, the upper end of'the support being threaded and the lower end having a flange for engaging the lower surface of the inner glass envelope, a

7 disk carried outside the support, screw threaded means cooperative with the supportfor forcing the disk against the top of the outer envelope, and means for insuring 'a predetermined alignment of the glass envelopes. v p

2. In combination, a luminaire having an inner glass envelope and'an outer glass envelope, the two envelopes having prisms for distributing light rays in a predetermined manner, a tubular metallic support passing upwardly through the luminaire, the upper end of the support being threaded and the lower end having a flange for engaging the lower surface of the inner glass envelope,

a disk carried outside the support, screw threaded means cooperative with the support forforcing the disk against the top of the outer envelope, and interlocking lugs and recesses carried by the glass envelopes for insuring a predetermined adjustment of the glass envelopes.

3. In combinatiom'a luminaire having an inner glass envelope and an outer glass envelope, the two envelopeshaving prisms for distributing light rays ina predetermined manner, a tubular metallic support passing upwardly through the luminaire, the upper end of the support being threaded and the lower'end havin a flange for engaging the lower surface of the inner glass envelope, a disk carried outside the support, screw threaded means cooperative with the support for forcing the disk against the top of the outer envelope, and interlocking lugs and recesses carried by the glass envelopes for insuring a predetermined adjustment of the glass envelopes, the two glass envelopes being bodily movable in the support as a unit for effecting orientation of the luminaire. i

4. In combination, a luminaire having an inner glass envelope and an outer glass onvelope, the two envelopes having prisms for distributing light rays in a predetermined manner, a tubular metallic support passing upwardly through the luminaire, the upper end ofthe support beingtthreaded and the lower endhaving a flange for engaging the lower surface of the inner glass envelope, a disk permanently secured to the outside of the support and held against the top of the outer envelope, and means for insuring a predeterminedalign'mentof the glass envelopes. I j

5. In combination, a luminaire having an inner glass envelope and an outer glass envelope, the two envelopes having prisms'for distributing light rays in a predetermined manner, a tubular metallic support passing upwardly through the" luminaire, the upper end of the support being threaded and the lower end having a flange for engaging the lower surface of the inner glass envelope,

a disk permanently secured to the outside 6. In combination, a luminaire having an I inner glass envelope and an outer glass envelope, the two envelopes having prisms for distributing "light rays in a predetermined manner, a tubular metallic support passing upwardly through the luminaire, the upper end of the support being threaded and the lower end having a flange for engaging the lower surface of the inner glass envelope, a disk permanently secured to the outside of the support and held against the top of the outer envelope, and interlocking lugs and recesses carried by the glass envelopes for insuring a predetermined adjustment of the glass envelopes, the two glass envelopes being bodily movable in the support as a unit for effecting orientation of the luminaire.

7. In combination, a luminaire having an inner glass envelope, an outer glass envelope and interlocking aligning lugs carried by the envelope for preventing relative rotation, a tubular metallic support passing upwardly through the top of the luminaire and having a flange extending underneath the inner envelope to support the same, a disk permanently secured to the outside of the support and held against the top of the outer envelope, the luminaire being angularly movable about the support to effect an orientation of the luminaire.

8. In combination, a luminaire having an inner glass envelope, an outer glass envelope and interlocking aligning lugs carried by the envelopes for preventing relative rotation, a tubular metallic support passing upwardly through the top of the luminaire and having a flange extending underneath the inner envelope, the flange having small bosses to engage with the surface of'the inner envelope, a disk permanently secured to the outside of the support and held against the top of the outer envelope, the luminaire being angularly movable about the support to eflect an orientation of the luminaire.

Si ing and State of Ohio this 22nd day of July WILLIAM A. INGLER.

gned at Newark in the county of Lick-

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