US1397285A - Device for connecting bowls and shades in lighting-fixtures - Google Patents

Description

W. R. KAHNS.

DEVICE FOR CONNECTING BOWLS AND SHADES IN LIGHTING FIXTURES. APPLICATION FILED FEB. 4. 1921.

1,397,285, Patented Nov. 15, 1921.

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specification of Letters Pam.

Patented Nov. i5; rear.

Application filed February 4, 1921. Serial No. 442,340.

T 0 aZZ to am it may 00mm Be it knownthat I, VALTER R. KAHNS, a

citizen of the United States, resident of the borough of Brooklyn, in the county of Kings, city and State of New York, have invented an Improvement in Devices for Connecting Bowls and Shadesin Lighting Fixtures, of which the following is a specification.

My invention relates to devices for connecting the bowl and shade or reflector in that class of indirect lighting fixtures wherein the bowl is supported from a shade or reflector, both being drilled with spaced holes to receive plugs which are connected by chains. 7 y I Such plugs have usually been of solid metal provided atone end with a head, and at the other end with a hook or eye to receive a link of the connecting chain. These chains are generally heavy and expensive, and cause great strain upon the bowls, shades or reflector which are frequently broken from such cause where made of glass as is usually the case.

One of the objects of my present invention is to provide a means for the employment of chains of light weight thereby saving material and expense; also providing a secure attachment for the ends of the chains.

The details of the invention are hereinafter particularly described.

In theaccompanying drawing:

Figure 1 is an elevation showing my 1nvention applied to a-lighting fixture.

Fig. 2 is an elevation of the connecting device between the shade or reflector and bowl, detached.

Fig. 3 is a vertical section of the same.

Fig. 4. is an elevation of one or" the inner tubes detached.

Fig. 5 is a sectional elevation, enlarged, of a disk that may take the place of the inner tubes, and

Fig. 6, is a plan view of the same.

Similar reference characters denote like parts throughout the several views.

10 indicates the member to be attached to the shade or reflector 11. 12, indicates the member to be attached to the light transmitting bowl 13, and 14: indicates the connecting chain.

The member 10, comprises a tubular stud exteriorly threaded and provided with an outwardly turned annular flange or head 15 at its lower end, there being a shoulder 16, formed within the stud at a predetermined distance from its lower end. I prefer to employ a tube 17 of sheet metal provided with a longitudinal slot '18, on one side, which tube fits into the stud 10 with its lower end seated upon the annular shoulder 16. The upper end of the tube 17 is preferably slightly outwardly upset,z while its lower end is int-urned, so that the opening in its bottom is smaller than at the top. The chain preferablv employed comprises a plurality of small hollow. metallic spheres 19 connected one to the other by headed wire links 20., The tubular stud 10, tube 17, and chain 14, are joined together in the followmg manner.

Before the tube 17 is inserted within the stud one end of the chain 14: is passed through the opening in the stud from the bottom until one or more of the spheres 19 project at the top. The first or end sphere of the chain is then placed in the upper end of the tube, with the link connecting the next sphere, inserted into the slot 18, in the tube, and is pushed down to the lower end of the slot where it enters the open lower end of the tube, the end sphere within the tube being held therein by the inturned lower edge of the tube. The lower end of the tube is then inserted into the opening in the stud and pulled down by the chain until it strikes the annular shoulder 16, therein upon which it rests, when the chain will normally hang in a straight vertical line with the stud, but will be capable of lateral movement without strain, the bottom of the flange on the stud being countersunk and rounded outwardly from the opening in the stud to present a smooth surface and give play for the chain at this point. It will, of course, be understood that any other style of chain may be made use of where the ends of the chain are provided with a head and stem of a shape capable of insertion into the opening and slot of the tube in the manner described.

In place of the inner tube 17, I may employ a disk 26, provided with a central opening 27, and a transverse slot 28, extending therefrom as shown in Figs. 5 and 6 to which the chain may be connected in the same manner as to the tube 17, the disk being then inserted into the opening in the stud 10, and brought down to seat upon the shoulder 16, therein.

It is preferable that a shallow rounded depression be formed on both sides of the disk surrounding the central opening therein to allow for free movement of the chain,

, and lessen. friction.

The member 12, for connection with the bowl 13,,being positioned at right angles to themember 10, connected with the shade or reflector 11, instead of being hollow longi tudinally as is the member 10, the hole is made transversely through the head 21, so as to avoid uneven strain upon the connecting chain 14. There is an annular shoulder 22, within such. bore, similar to and for the same purpose asthe shoulder 16, in the stud 10, and the tube 23,is exactly like the tube 17, the lower end of the chain 14 being connected to the tube 23, in the same manner that its upper) end is connected to the tube 17. The stem 29 of the stud 12 is eXteriorly threaded.

The disk 26,- may also be employed in place of the tube 23, in the head 21 of the member 12, when desired.

The threaded portions of these members 10 and 12Vare passed through holes in the bowl, shade or reflector, and retained therein by nuts 24 and 25. r

My invention provides a light and artistic connection for the bowls and shades or re flector; a saving of material, and a secure. attachment for the ends of the connecting shade in lighting fixtures, comprising a hollow stud having an annular flange at one end to bear against the under surface of the shade, and an interior shoulder, a removable slotted member within said stud seated upon said shoulder, said stud being exteriorly threaded and adapted to enter a hole in the shade, a nut screwed upon the said threaded stud to secure it to the shade, another hollow stud provided with a threaded stem projecting at right angles on one side adapted to enter a hole in the bowl, a'nut securing it thereto, said second stud also having an interior shoulder, a removable slotted member within said stud abutting against said shoulder, and arflexible chain connection between said studs, its respective ends being attached to said slotted members through the slots therein.

Signed by me this 27th day of January, 1921.

WALTER R. KAI-INS.

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