US2714153A - Lamp shade - Google Patents

Description

July 26, 1955 F. A. .TALBO-T 2,714,153

LAMP SHADE Filed Oct. 9, 1950 2 Sheets-Sheet 1 ummw W/V/V/K/Z 72 450 7;

a a a INVENTOR ATTORNEY F. A. TALBOT LAMP SHADE July 26, 1955 2 Sheets-Sheet 2 Filed Oct. 9, 1950 INVENTOR fWfi/V/f/Z 774507;

ATTORNEY United States Patent 6 The present invention relates to improvements in shades for incandescent lamps and more particularly pertains to such a device formed of a plurality of sectorshaped plates which are relatively flat and readily assembled into a frusto-pyramidal shape lamp shade.

An object of the invention is to provide a plurality of relatively flat plates which may be readily manufactured and shipped in relatively small flat packages and which may be readily connected to each. other and mounted on the socket for an incandescent bulb so as to provide a shade for the lamp.

A more specific object of the invention resides in providing integral hooks along one edge of the sector-shaped plates which are adapted to enter slots in the side of an adjacent sector-shaped plate so that a series of such connected plates will form a frusto-pyramidal shape assembly which may be readily assembled and mounted on a socket or the like for a lamp bulb. 7

Other objects and features of the 'invention will be more apparent as the present disclosure proceeds and upon consideration ofv the accompanying drawings and the following detailed description wherein an exemplary embodiment of the invention is disclosed.

In the drawings:

Fig. 1 is a side elevational view of, a lamp shade exhibiting the invention and mounted on an incandescent bulb socket.

Fig. 2 is a side elevational view of one of the sector- 77 of Fig. 5.

The present invention is directed to a lamp shade formed of a plurality of sector-shaped plates which may be stored in flat relationship and thereby. conveniently packaged for distribution through the customary marketing channels. The plates. are so shaped and formed that they may be readily assembled by a customer and mounted on a socket or the like for a lamp.

In carrying out the invention a plurality of plates, such as shown at 10 in Fig. 3, are stamped or otherwise cut from sheet-material such as metal and preferably aluminum. The aluminum may be of the anodized type with the color provided on the upper face 11 of the plates so that the under surface remains bright and serves as reflecting means for the light'waves emitted by the bulb 12. Any suitable number of plates 10 may be employed in providing a complete lamp shade and in the embodiment illustrated eight of the sector-shaped plates are employed with the radial edges displaced from each other by approximately forty-five degrees.

In forming the plates a series of hook-shaped ele- 'ments '14 are formed integral with the plate along one of the radial edges thereof. It will be noted that these 3Q manipulation of the tab 23 and the shoulder 28 provides ice hook-shaped elements are depressed below the plane of the associated plate 10 as will be apparent from a consideration of Figs. 4 and 7. The hook-shaped elements 14 are provided with a notch 16 which is formed by a tip portion 17 on each of the hook-shaped elements. Any number of hooks may be provided along one radial edge of each plate 10 and in the embodiment illustrated three of such elements are provided.

The opposite edge of each plate carries a lip 18 which is formed integral with the plate. This lip 18 lies in a plane parallel with the main portion of the plate 10 but is depressed below the plane thereof a distance approximately equal to two thicknesses of theplate 10. In other words, the surface 19 of the lip 18 as shown in Fig. 4 is spaced twice the thickness of the plate 10 below the upper surface 11. Such an arrangement provides a substantially right angle wall 21 of the sheet-material between the plate 10 and the lip 18. A plurality of openings or slots 22 (Fig. 4) are provided in the wall portion 21. These slots 22 are so placed as to receive'the hook-shaped elements 14 carried by the adjacent sectorshaped plate. Thus in assembling the plates into a complete lamp shade the hook-shaped elements 14 are introduced into the slots 22 and the hooks 14 are moved outward with respect to the slots 22. The tip portion 17 thereby extend along the inner face of the wall portion 21 and hold the two plates in connected relationship.

Each lip 18. is provided with a tab 23 as shown particularly in Fig. 3. After the hook elements 14 have been properly introduced into the slots 22 with the tips 17 lying behind the wall portion 21 the tabs 23 are bent upwardly and outwardly and thereafter downwardly to overlie the face portion 11 (Figs. land 6) of the adjacent plate. The tabs, 23 in cooperation with the hook elements prevent relative endwise movement of one plate 10 relative to the other and accordingly prevent inadvertent dis-' connection of one plate element relative to the other. The tabs 23 may be bent to the position illustrated in Fig. 6 by the fingers or any simple tool.

Each of the sector-shaped plates is provided with an extension 26 which may be formed integral with the plate during the stamping operation. These extensions are preferably of less width than the inner end of the plate so as to provide for shoulders 27 and 28 which facilitate the an abutment for the tab 23 of anadjacent plate when these tabs are bent to the positions shown in Figs. 1 and 6. The extensions 26 may be bent in an arcuate shape as shown in Figs. 1, 5 and 6. The sheet-material while be ing relatively stifi is, nevertheless, flexible to such an extent that the extensions 26 may be bent to form means for resiliently gripping the periphery of a lamp socket '28 such as shown in Fig. 1. An annular elastic member 29 such as a helical spring may be employed embracing the bent extensions 26 and holding the lamp shade in position on a lamp socket.

The structural features of the one type of lamp shade have been described but it will be understood that changes may be made in the dimensions of the plates and the number to provide lamp shades of sizes other than that disclosed and having a greater or less number of sectorshaped elements. The manner of assembling the plates into. a complete lamp shade will be apparent from the description as hereinabove set forth and the device provides means for shading the direct rays emitted by the lamp bulb 12 and also reflecting some of these rays towards an areav which is to be lighted. The plates 10 may be readily stamped in mass production methods and assembled in flat juxtaposed relationship to thereby occupy a minimum of space for packing and shipment. The platesmay be readily assembled by a layman or customer and readily attached to a lamp bulb socket.

While the invention has been described with reference to particular structural details with reference to the manner in which the sector-shaped plates are adapted to be connected to each other and with regard to the manner in which the shade is mounted on the lamp socket it will be appreciated that changes may be made in the construction of these parts. Such modifications and others involving the general organization may be made Without departing from the spirit and scope of the invention as set forth in the appended claims. 7

What I claim and desire to secure by Letters Patent 1. In a lamp shade, a first sector-shaped plate having substantially radial edges, a second sector shaped plate having substantially radial edges, hook elements carried by a first radial edge of the second plate having tip portions extending in a common direction along the radial edge thereof, each hook element including its tip portion being in a single plane substantially parallel to the second plate, means carried by one radial edge of the first plate having slots'therein for receiving the hook elements on the second plate, each of said slots having a dimension measured radially of the first plate greater than the radial dimension of one of said hook elements and its tip portion, a surface on the second plate arranged generally transversely of the said first radial edge, and a tab carried by the first plate engaging said surface and preventing movement of the second plate relative to the first plate in a direction opposite to the extending direction of said tip portions.

2. In a lamp shade, a generally triangular shaped plate having angularly displaced edges, hook elements carried by a first edge of said plate, a tip portion carried by each hook element all extending in the same direction along the first edge of the plate, each of said hook elements including the tip portion thereof being in a single plane substantially parallel to said plate, a wall carried by the second edge of the plate having slots therein for receiving hook elements of another plate, each of said slots having a dimension measured radially of the plate greater than the radial dimension of one of said hook elements and its tip portion, and a tab carried by the plate adjacent the second edgeabutting an end edge of the other plate and preventing movement thereof along the second edge of the plate in a direction opposite to the extending direction of said tip portions.

3. In a lamp shade, a generally triangular shaped plate having edges angularly displaced from each other, hook elements caried by one edge of the plate including tip portions extending in a common direction along said edge, each of said hook elements including its tip portion being in a single plane substantially parallel to said plate, a lip carried by the other edge connected to the plate by a wall portion, said Wall portion having slots therein for receiving hook elements of another generally triangular shaped plate, each of said slots having a dimension measured radially of the plate greater than the radial dimension of one of said hook elements and its tip portion, and a tab integral with an end of said lip extending across the other plate preventing movement of the other plate relative to the first plate in a direction opposite to the extending direction of said tip portions.

' 4. In a lamp shade, a generally triangular shaped plate having edges angularly displaced from each other, a lip carried by one edge connected to the plate by a wall portion, a second generally triangular shaped plate having angularly displaced edges, hook elements carried by one edge of the second plate, a tip portion on each hook element all extending in a common direction along said edge of the second plate, each of said elements including its tip portion being in a single plane throughout substantially parallel to the second plate said wall portion having slots therein for receiving the hook elements of the second plate. each of said slots having a dimension measured ra- 4 dially of the first plate greater than the radial dimension of one of said hook elements and its tip portion, and a tab integral with an end of said lip extending across and abutting an end of the second plate preventing movement thereof relative to the first plate in a direction opposite to the extending direction of said tip portions.

5. In a lamp shade, a first sector-shaped plate having substantially radially edges, a second sector-shaped plate having substantially radial edges, hook elements carried by a first radial edge of said second plate, a tip portion carried by each hook element all-extending in a direction towards a base portion of the sector shaped second plate, each of said hook elements including its tip portion being in a single plane substantially parallel to the second plate, a wall carried by a second radial edge of the first plate having slots therein for receiving said hook elements, each of said slots having a dimension measured radially of the first plate greater than the radial dimension of one of said hook elements and its tip portion, a shoulder at an apex end portion of the second plate, and a tab carried by an apex end portion of the first plate extending across and engaging said shoulder.

6. A lamp shade comprising, a plurality of sectorshaped plates each having radial edges angularly displaced from each other, hook elements carried by one radial edge of each plate, a tip portion on'each hook element all extending in a common direction along a radial edge of each plate, each ofsaid hook elements including its tip portion being in a single plane throughout, a wall carried by the other radial edge of each plate, said wall of each plate having slots therein for receiving the hook elements of an adjacent plate, each of said slots having a dimension measured radially of the lamp shade greater than the radial dimension of one of said hook elements and its tip portion, a tab carried by each plate extending laterally from the plane thereof and overlying a surface of an adjacent plate which is generally transversely of the extending direction of said tip portions to prevent movement of one plate radially with respect to another a direction opposite the extending direction of said tip portions.

7. A lamp shade comprising, a plurality of sectorshaped plates each having radial edges angularly displaced from each other, hook elements carried by one radial edge of each plate, a tip portion on each hook element extending in a common direction generally parallel to said radial edge of each plate, each of said hook elements including its tip portion being in a single plane throughout,

a lip carried by the other radial edge of each plate connected to the plate by a Wall portion and lying in a different plane substantially parallel to the associate plate, said wall'portion of each plate having slots therein for receiving the hook elements of another plate, each of said slots having a dimension measured radially of the lamp shade greater than the radial-dimension of one of said hook elements and its tip portion, a surface on each plate in the plane thereof facing in a direction opposite the extending direction of said tip portions, and a tab carried by the end of each lip having a portion in the plane thereof and another portion extending laterally from the first portion and abutting said surface to prevent movement of one plate with respect to another.

References Cited in the file of this patent UNITED STATES PATENTS 86,987 Laws Feb. 16, 1869 103,928 Read June 7, 1870 671,814 Catlin Apr. 9, 1901 774,477 Jewett Nov. 8, 1904 776,249 Lubow Nov. 29, 1904 1,274,925 Mills Aug. 6, 1918 1,759,093 Clawson May 20, 1930 1,813,102 Vogel July 7, 1931 1,861,206 Burgess May 31, 1932 2,586,583 Wagner Feb. 19, 1952

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