US2073135A - Lamp shade - Google Patents

Description

March 9, 1937. L. v. ARONSON 2,073,135

LAMP SHADE I F iled Aug. 9, 1935 v INVENTOR Patented Mar. 9, 1937 UNITED STATES PATENT OFFICE LAMP SHADE Application August 9, 1933, Serial No. 684,334

9 Claims.

My invention relates to a shading r glarereducing device adapted for association with the bulb of an electric lighting unit.

The invention relates to a lamp shade comprising a minimum number of parts and of otherwise simple construction.

Various other objects, advantages and characteristics of my invention will become apparent from the following detailed description.

My invention resides in the combination, lamp shade features and arrangements of the character hereinafter described and claimed.

For an understanding of my invention and for an illustration of one of the many forms there- 'of, reference is to be had to the accompanying drawing, in which:

Figure 1 is a perspective view of a lighting unit having my novel shading device associated therewith;

Figs. 2 and 3 are elevational views of the arrangement shown in Fig. 1;

Figs. 4, 5 and 6 are elevational views showing individual parts of my novel shading device; and

Fig. 7 is a transverse horizontal sectional view of my novel lamp shade.

Referring particularly to Figs. 1, 2 and 3, there is illustrated a lighting unit L which comprises a base I having upstanding therefrom a socket 2 adapted to support a plurality of disks 3 intended 3 to serve particularly in an ornamental sense.

The socket 2 is adapted to detachably receive a p bulb 4 which contains .a suitable filament, not shown, adapted to be brought to incandescence by electrical current supplied thereto by the conductors 5. As herein shown, although not necessarily, the bulb 4 is of elongated, cylindrical shape.

In accordance with my invention, there is provided for association with the bulb 4 a lamp 4 shade S of novel construction. In a preferred form of the invention and as shown in Figs. 4, 5

and 6, said shade S comprises a sheath member a, a glare-reducing member b and an ornamenting member 0.

45 The member a directly engages and is detachably secured to the bulb 4 by strap sections al formed preferably integrally therewith immedi ately adjacent opposite ends thereof. As clearly appears from a consideration of Fig. '7, the sheath 50 member a is of generally cylindrical configuration.

Moreover, except for the strap sections at, it is entirely open at one side thereof as indicated at a2. Opposite the opening a2, said sheath member a is formed with an elongated opening (13 bounded at its upper and lower ends by the sheath sections a4 and at its respective opposite sides by the sheath sections a5. In view of the description above noted, it readily appears that the sheath member a of Fig. 4 is a unitary struc- 60 ture which may readily be slipped endwise over and around the bulb 4 until it takes a position such as illustrated in Figs. 1, 2 or 3. When thus positioned, the sheath strap sections ctl and end sections a4 detachably secure said sheath member a. to the bulb 4 in a positive manner. Further, when the sheath member a is positioned as just described, it will be noted that the elongated openings a2 and a3 are at opposite respective sides of the bulb 4.

The glare-reducing member 12 may be of sheetlike flexible material and should be more or less translucent so as to neutralize the harsh rays of light emanating from the bulb 4. Obviously, the member I) may be formed from material of suitable character such, for example, as Cellophane, isinglass, etc.

The member 0' should be of suitable flexible material such, for example, as cardboard, or equivalent. It may be perforated or treated in a desired manner to represent a desired design, 20

trade-mark, advertising slogan, or the like.

Fig. 7 is representative of the shape taken by the members a, b and c after they have been assembled to form the complete lamp-shading device. As clearly appears, the sheath a is inner-- most, the member 0 outermost, and the member 1) between the members a and c. The glare-reducing member 22 closes the sheath opening a3, the upper and lower ends thereof engaging the respective sheath end sections a4 while the opposite sides thereof engage the respective sheath side sections a5. The member c is adapted tooverlie the member b and, in the form of the invention herein shown, said member 0, at the periphery thereof beyond the member I), is ad- 35 hesively secured, as at ,d, to the sheath member a. Thus, with an arrangement of the character described, the member 0 is positively secured to the sheath member a; and serves to hold the member I) in assembled relation on said sheath member a.

Thus, with the complete shading device of Fig.

7 on the bulb 4 as shown in Figs. 1, 2 and 3, it clearly appears that light from the bulb passes through the sheath opening a3, then through the member I), and finally emerges through the perforations in the outer member 0. By the member b, this light is suitably diifused or modified as regards glare so as to be unobjectionable.

The arrangement is such that the shading device S remains in a selected position on the bulb 4 due to the frictional engagement therewith of the sheath member a. However, the binding relation between these two parts is not so great as to prevent ready manual movement of the shading device S with respect to the bulb 4. It follows, therefore, that said shading device may readily be moved by hand to such position circumferentially of the bulb 4 that the diffused 60 light beam passing through the member b is directed to a desired area.

The shading device S, opposite the member I), is provided with the opening a2 and hence, in this region, offers no obstruction to the free passage of light from the bulb 4. Moreover, the opening a2 permits ready escape of heat from said bulb 4 which, of course, is desirable.

It shall be distinctly understood that my invention is not to be limited to the precise form thereof illustrated on the accompanying drawing. Thus, as will be obvious, the members a, b and 0 may be fastened together otherwise than as herein described. Under some circumstances, the member 0 may be omitted and, if desired, the member I) may be so modified that it merely bounds the area containing the design-forming perforations in the member 0.

It shall be understood that the lamp shade of my invention is not to be limited for use with a lamp bulb of the character illustrated. As Well, depending upon the limitations of the glass-forming art, the lamp bulb may be curved or of other suitable shape.

The various members forming a complete lamp shade structure, initially, may be of plane configuration and thereafter shaped to produce the cylindrical arrangement shown in Fig. '7. Or, some or all of said members may have the desired final configuration before they are assembled together to form the complete shade.

The character of the material from which the various members are formed may readily be selected by those skilled in the art. Obviously, such materials should be chosen as will not ignite or become charred by the heat generated by the lamp bulb.

While the invention has been described with respect to a certain particular preferred example which gives satisfactory results, it will be understood by those skilled in the art after understanding the invention, that various changes and modifications may be made without departing from the spirit and scope of the invention and it is intended therefore in the appended claims to cover all such changes and modifications.

What is claimed as new and desired to be secured by Letters Patent is:

1. A lamp shade comprising a sheath-like structure provided with longitudinally extending apertures at opposite sides thereof, respectively, means for securing said lamp shade to a lamp bulb, said securing means comprising spaced strap-like members partly encircling and frictionally engaging said lamp bulb in a direction laterally of the longitudinal axis thereof, said strap-like members and adjacent respective sections of said lamp shade forming continuous bands of material encircling said lamp bulb, and a light-shading member fixed to said sheath-like structure so as to cover one of said apertures.

2. A lamp shade comprising a sheath-like structure apertured to form a light passage, means coacting directly with a lamp bulb for frictionally securing said structure directly to said lamp bulb with its longitudinal axis substantially coinciding with the lamp bulb axis, said lamp bulb being of uniform cross-sectional area throughout substantially its entire length Whereby said structure is freely movable longitudinally thereon, and a member fixed to the curved surface of said structure and overlying said passage for reducing the glare of the emitted light,

3. A lamp shade comprising a sheath-like structure apertured to form a light passage, means coacting directly with a lamp bulb for frictionally securing said structure directly to said lamp bulb with its longitudinal axis substantially coinciding with the lamp bulb axis, said lamp bulb being of uniform cross-sectional area throughout substantially its entire length whereby said structure is freely movable longitudinally thereon, a member fixed to the curved surface of said structure and overlying said passage for reducing the glare of the emitted light, and a second member disposed fiatwise against said first member, said second member being transparent for the passage of light through perforations forming a predetermined design.

4. A lamp shade comprising a sheath-like structure, means coacting directly with a lamp bulb for frictionally securing said structure directly to said lamp bulb with its longitudinal axis substantially coinciding with the lamp bulb axis, said structure being apertured along one side thereof to form a passage for light rays, and a translucent member anchored to said structure for covering said passage, said translucent member enclosing a part only of said lamp bulb.

5. A lamp shade comprising a sheath-like structure having means for securing it to a lamp bulb, said structure being apertured along one side thereof to form a light passage, a translucent member secured to said structure for covering said passage, and a member disposed flatwise against said translucent member and being largely transparent for the passage of light through perforations forming a predetermined design.

6. A lamp shade comprising a sheath-like structure having means for securing it to a lamp bulb, said structure being apertured along one side thereof to form a light passage, a translucent member secured to said structure for covering said passage, and a member disposed flatwise against said translucent member for anchoring it against said structure.

'7. A lamp shade comprising a sheath-like structure having spaced strap members for securing it to a lamp bulb, said structure being apertured along one side thereof to form a light passage, a translucent member secured to said structure for covering said passage, and a member disposed fiatwise against said translucent memher and forming the outer surface of said lamp shade.

8. A lamp shade having means for securing it to a lamp bulb, said lamp shade comprising a sheath-like structure apertured along opposite sides thereof to form passages, and a translucent member secured to said structure and covering one only of said passages, the other passage being free and unobstructed for the ready escape of heat.

9. A lamp shade having means for securing it to a lamp bulb, said lamp shade comprising a sheath-like structure apertured along opposite sides thereof to form passages, a translucent member secured to said structure and covering one only of said passages, the other passage being free and unobstructed for the ready escape of heat, and a member disposed fiatwise against said translucent member and forming the outer surface of said lamp shade.

LOUIS V. ARONSON.

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