CA1224913A - Form and method of fabricating a glass lampshade - Google Patents
Form and method of fabricating a glass lampshadeInfo
- Publication number
- CA1224913A CA1224913A CA000434220A CA434220A CA1224913A CA 1224913 A CA1224913 A CA 1224913A CA 000434220 A CA000434220 A CA 000434220A CA 434220 A CA434220 A CA 434220A CA 1224913 A CA1224913 A CA 1224913A
- Authority
- CA
- Canada
- Prior art keywords
- strips
- cartoon
- lampshade
- sectional
- fabricating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
IMPROVED FORM AND METHOD OF FABRICATING A GLASS LAMPSHADE
Abstract A sectional form for fabricating Tiffany-type lamp-shades and a method for fabricating such lampshades include a form having an alignment grid affixed to the outer surface thereof. Cartoon strips corresponding in shape to the regions of the alignment grid are releasably secured to the outer sur-face of the form and cut glass is thereafter assembled into sections of a glass lampshade on the form. Single or multiple sets of cartoon strips may be used to assemble a lampshade hav-ing either a repeating or nonrepeating design.
Abstract A sectional form for fabricating Tiffany-type lamp-shades and a method for fabricating such lampshades include a form having an alignment grid affixed to the outer surface thereof. Cartoon strips corresponding in shape to the regions of the alignment grid are releasably secured to the outer sur-face of the form and cut glass is thereafter assembled into sections of a glass lampshade on the form. Single or multiple sets of cartoon strips may be used to assemble a lampshade hav-ing either a repeating or nonrepeating design.
Description
~u~
Descrietion IMPRoVED FORM AND METHOD OF FABRICATING A GLASS L~MPSHADE
Technical Field This invention relates to forms Eor fabricaking tiEfany-type lampshades and improved methods for fabricating such lampshades.
Backqround Art Tiffany-type lampshades generally comprise a plurality of small pieces of stained glass secured to one another by copper foil or lead came to form a desired shape and design. The expense of purchasing finished lampshades of this type has led to the popularity of kits and molds which facilitate home Eabrication of -tiffany-type lampshades.
In the past, these kits have included expensive and bulky molds upon which the fabricator assembled an entire shade.
When using these molds, it is necessary for the fabricator to rotate relative to the mold, or ~ice versa~ to assemble an entire lampshade.
More recently, ligh-tweight sectional forms have been developed which allow a fabricator to assemble a lamp-shade in sections which are -then connected together when all sections are complete. Sectional forms of this type are constructed by taking a solid mold with an outer surface of a desired shape and cutting a pie-shaped section out of it.
The mold is shaped so that the sectional forms will stand upright on a table. A pattern, or "cartoon," as -they are known in the trade, is permanently affixed on the outer sur-face of the sec-tional form. The cartoon is comprised of color-coded regions to indicate the color of glass which the fabricator is to place on each ~`
portion of the sectional form. Each section of the lamp shade is assembled by placing inclividual pieces of cut glass correspondinq in siæe and color to ~he regions of the car-toon and connecting each piece to the surrounding pieces uslng copper foil or lead came.
Although these sectional Eorms have many advan-tages over the bulky molds which preceded them, they still have several drawbacks. Once a fabricator has purchased a given sectional form, for example, he may make only one lampshade design from that form. Additionally, retailers of such sectional forms must maintain a large inventory in or-der to stock a wide variety of designs. As both the shape of the form and the design on the form may vary, it is dif-ficult for a retailer to offer the selection desired by the fabricator/hobbyist. This is especially true because retail outlets for the sectional forms are often sma]l hobby shops.
Another drawback of existing sectional forms is that they are not well adapted to permit a fabricator/
hobbyist to fabricate a lampshade of his or her own design.
20Yet another drawback of existing sectional forms is that the design of the completed lampshade is necessarily a repetition of a smaller design. If the sectional form is one-fifth of an entire mold, for example, the design of the completed shade will be a repetitious pattern of five small-er designs.
Disclosure of_the Invention It is an object of this invention to provide a sectional form for fabricating Tiffany-type lampshades which can be used to fabricate a plurality of designs.
It is another object of this invention to provide such a form which can be reused by the fabricator for dif-ferent designs.
It is another object of this invention to provide 35 such a form which will permit a glass lampshade naving a nonrepetitious design to be fabricated.
It is another object of this invention to provide such a form which will facilitate use of original designs wnen fabricating a Tiffany-type lampshade.
a3 It is another object o~ this invention to provide a method of fabricating a Tiffany-type lampshade Erom sec-tional forms which will permit a plurality of lampshades of varying designs to be fabricated from a single form, S It is another object of this invention to provide a method of fabricating a Tiffany-type lampshade from a sectional form which will Eacllitate the use of original desiqns.
It is another ob~ect of this invention to provide a method of fabricating such a lampshade from sectional forms which will allow use of a single nonrepetitious design for the entire lampshade.
It is another ob~ect of this invention to provide a method of fabricating a Tiffany-type lampshade from sec-tional forms which will permit reuse of such forms by thefabricator.
These and other objects which will become apparent as the invention is more fully described below are obtained by providing a sectional form of conventional shape. The outer surface of the sectional form includes an alignment grid affixed thereto. A plurality of thin, elongated car-toon strips sized to correspond to the dimensions of the alignment qrid are releasably secured to the outer portion of the sectional form using pins or the like. The outer surfaces of these cartoon strips combine to form a complete cartoon covering the outer surface of the sectional form.
The fabricator may easily assemble a section of the glass lampshade over the sectional form and cartoon strips, as would be done with a conventional sectional form. Once a lampshade is completely assembled, the cartoon strips may be removed from the sectional form, leaving the alignment grid exposed. To fabricate a second design using the same sec-tional form, the fabricator need only acquire an additional set of cartoon strips.
Brief Description of the Drawinqs Fig. 1 is an isometric view of a sectional form showing the aliqnment grid on the outer surface of the form.
~t2'.~
Fig. ~ is an isometric view oi a sectional form hclvirig a plurality of cartoon strips aE~ixed thereto.
Fig. 3 is a cross-sect:ional view of the sectiona]. form of Fig. 2 ta~en through a vertical plane extending radially through the interi.or of the form.
Fig. 4 is an isometric view of a single cartoon stri,o.
Bes _ de for Carr~in~ Out the Invent,i.on_ __ _ __ _ _ _ _ An improved sectional form designed to be used in the improved method of fabrication described herein i,s shown im Fi.g.
l. The exterior s'nape of the section form lO is selected in accordance with the shape o:E the lampshade desired to be fabri.cated. A ser;es of horizontal grid li.nes 12 and vertical grid lines 14 are aEfixed to the outer surface of the sectional form lO to create an ali.gnment gri.d 16 thereonO
In order to make the secti.onal form lO usable as a mold on which sections of a lampshade may be assembled, cartoon strips 20, such as the one illustrated i.n Fig. 4, must be placed over tile alignment gri.d 16 of the sectional form lO. The outer side of each cartoon strip 20 contai.ns color-coded marking so that when all strips 20 are secured to the sectional form lO, as seen in Fig. 2, a complete design wi.ll be formed. The cartoon strips 2U are sixed such that the width of each stri.p corresponds to the spaci.ng oE the horizontal grid lines 12 between whi.ch it i.s to be placed. As seen in Fig. l, the spaci.ng oE the hori.zontal grid li.nes 12 preferably decreases in the regions of steep curvature of the outer surface of the sectional form lO to ensure that the flat cartoon stri.ps 20 can conform to the outer surface of the secti.onal form lO ~ithout excessive bending. The cartoon strips 'I 1~
pre~er,ably inclu(le verticaL alignlnent indicia 22 which aid the ~abricator in alignin~ the cartoon strips 20 with the vertical gri~ lines 1~1 ancl in(licia 24 o:E the other cartoon strips. Proper aligrlment will ensure that the cartoon strips 2U, once placed over the alignmetlt grid 16, will. form a coherent pattern over which a lampshade may be fabricated.
In the embodiment illustrated in Figs. 1-4, the sectional form is fabricated of polystyrene or similar material. The cartoon strips 20 are oE paper construction and are held releasably secured to the outer surface of the sectional form 10 using pins 30.
To assemble a lampshade using the sectional form 10, as illustrated herein, the fabricator preferably first places the form 10 on a flat supporting surface. The car-toon strips are then selectively placed between the proper horizontal grid lines 12 and secured to the sectional form 10 using pins 30 or other securing means. Once all of the cartoon strips 20 are in place on the sectional form 10, the fabricator places pieces of cut glass over the cartoon strips, as indicated by the Pattern on the cartoon strips 20. The glass pieces are secured to one another using copper foil, lead came, or other known means. When an en-tire segment is complete, it is removed and set aside. The fabricator then completes the additional number of sections necessary to form a complete lampshade~ Once all of the sections are complete, the individual segments of the lamp-shade are secured to one another to form a complete shade.
If it is desired to avoid the use of a repeating pattern for the lampshade design, a plurality of sets of cartoon strips may be used. For example, if a one-quarter sectional form is used, four sets of cartoon strips would be provided. After each set of cartoon strips is secured to the sectional form 10, the fabricator would form one section of the lampshade as described ahove. Rather than forming the second lampshade section in an identical manner, the fabricator would replace the first set of cartoon strips with the second set and proceed to fabricate a second lamp-shade section having a different design than the first.
Proceedinq in this manner, a complete shade having one non-repeating pattern can be fabricated.
After the lampshade has been assembled, the fabri-cator may remove the cartoon strips and replace them with a different set or sets of cartoon strips containing a differ-ent pattern thereon. With a new cartoon strip in place, the L~ , 3 fabricator may repeat the process described above to produce a lampshade of the same shape, having a new design thereon.
It thus becomes unnecessary for the fabricator to purchase duplicate forms for every design he or she wishes to assem-ble. Similarly, retailers oE such forms need only stocksectional forms of varying shape. By stocking ~ive or six basic exterior shapes, such retailers may offer their cus-tomers a wide variety of differing designs by merely stock-ing a plurality of different cartoon strips for each shape.
This is of ~reat advantage to the retailers as a set of cartoon strips takes up much less storage space than an en-tire sectional form.
Although the imProved sectional form and improved method of fabricating a glass lampshade have been described herein for use with sectional forms only, it will be obvious to one of ordinary skill in the art that -the improvements described herein would be equally usable on molds represent-ing the shape of an entire lampshade. When a grid and car-toon strip method is used with these types of molds, how-ever, the full advantages of the sectional form molds are,of course, not obtained. Additionally, although the im-proved sectional forms and improved method of fabricating a glass lampshade have been described herein in reference to Figs. 1-~1 it will be obvious to those of ordinary skill in the art that many modifications of what is described here could be achieved without departing from the spirit of this invention. It is not the intent of the applicant herein to limit his invention to the specific embodiments disclosed herein.
Descrietion IMPRoVED FORM AND METHOD OF FABRICATING A GLASS L~MPSHADE
Technical Field This invention relates to forms Eor fabricaking tiEfany-type lampshades and improved methods for fabricating such lampshades.
Backqround Art Tiffany-type lampshades generally comprise a plurality of small pieces of stained glass secured to one another by copper foil or lead came to form a desired shape and design. The expense of purchasing finished lampshades of this type has led to the popularity of kits and molds which facilitate home Eabrication of -tiffany-type lampshades.
In the past, these kits have included expensive and bulky molds upon which the fabricator assembled an entire shade.
When using these molds, it is necessary for the fabricator to rotate relative to the mold, or ~ice versa~ to assemble an entire lampshade.
More recently, ligh-tweight sectional forms have been developed which allow a fabricator to assemble a lamp-shade in sections which are -then connected together when all sections are complete. Sectional forms of this type are constructed by taking a solid mold with an outer surface of a desired shape and cutting a pie-shaped section out of it.
The mold is shaped so that the sectional forms will stand upright on a table. A pattern, or "cartoon," as -they are known in the trade, is permanently affixed on the outer sur-face of the sec-tional form. The cartoon is comprised of color-coded regions to indicate the color of glass which the fabricator is to place on each ~`
portion of the sectional form. Each section of the lamp shade is assembled by placing inclividual pieces of cut glass correspondinq in siæe and color to ~he regions of the car-toon and connecting each piece to the surrounding pieces uslng copper foil or lead came.
Although these sectional Eorms have many advan-tages over the bulky molds which preceded them, they still have several drawbacks. Once a fabricator has purchased a given sectional form, for example, he may make only one lampshade design from that form. Additionally, retailers of such sectional forms must maintain a large inventory in or-der to stock a wide variety of designs. As both the shape of the form and the design on the form may vary, it is dif-ficult for a retailer to offer the selection desired by the fabricator/hobbyist. This is especially true because retail outlets for the sectional forms are often sma]l hobby shops.
Another drawback of existing sectional forms is that they are not well adapted to permit a fabricator/
hobbyist to fabricate a lampshade of his or her own design.
20Yet another drawback of existing sectional forms is that the design of the completed lampshade is necessarily a repetition of a smaller design. If the sectional form is one-fifth of an entire mold, for example, the design of the completed shade will be a repetitious pattern of five small-er designs.
Disclosure of_the Invention It is an object of this invention to provide a sectional form for fabricating Tiffany-type lampshades which can be used to fabricate a plurality of designs.
It is another object of this invention to provide such a form which can be reused by the fabricator for dif-ferent designs.
It is another object of this invention to provide 35 such a form which will permit a glass lampshade naving a nonrepetitious design to be fabricated.
It is another object of this invention to provide such a form which will facilitate use of original designs wnen fabricating a Tiffany-type lampshade.
a3 It is another object o~ this invention to provide a method of fabricating a Tiffany-type lampshade Erom sec-tional forms which will permit a plurality of lampshades of varying designs to be fabricated from a single form, S It is another object of this invention to provide a method of fabricating a Tiffany-type lampshade from a sectional form which will Eacllitate the use of original desiqns.
It is another ob~ect of this invention to provide a method of fabricating such a lampshade from sectional forms which will allow use of a single nonrepetitious design for the entire lampshade.
It is another ob~ect of this invention to provide a method of fabricating a Tiffany-type lampshade from sec-tional forms which will permit reuse of such forms by thefabricator.
These and other objects which will become apparent as the invention is more fully described below are obtained by providing a sectional form of conventional shape. The outer surface of the sectional form includes an alignment grid affixed thereto. A plurality of thin, elongated car-toon strips sized to correspond to the dimensions of the alignment qrid are releasably secured to the outer portion of the sectional form using pins or the like. The outer surfaces of these cartoon strips combine to form a complete cartoon covering the outer surface of the sectional form.
The fabricator may easily assemble a section of the glass lampshade over the sectional form and cartoon strips, as would be done with a conventional sectional form. Once a lampshade is completely assembled, the cartoon strips may be removed from the sectional form, leaving the alignment grid exposed. To fabricate a second design using the same sec-tional form, the fabricator need only acquire an additional set of cartoon strips.
Brief Description of the Drawinqs Fig. 1 is an isometric view of a sectional form showing the aliqnment grid on the outer surface of the form.
~t2'.~
Fig. ~ is an isometric view oi a sectional form hclvirig a plurality of cartoon strips aE~ixed thereto.
Fig. 3 is a cross-sect:ional view of the sectiona]. form of Fig. 2 ta~en through a vertical plane extending radially through the interi.or of the form.
Fig. 4 is an isometric view of a single cartoon stri,o.
Bes _ de for Carr~in~ Out the Invent,i.on_ __ _ __ _ _ _ _ An improved sectional form designed to be used in the improved method of fabrication described herein i,s shown im Fi.g.
l. The exterior s'nape of the section form lO is selected in accordance with the shape o:E the lampshade desired to be fabri.cated. A ser;es of horizontal grid li.nes 12 and vertical grid lines 14 are aEfixed to the outer surface of the sectional form lO to create an ali.gnment gri.d 16 thereonO
In order to make the secti.onal form lO usable as a mold on which sections of a lampshade may be assembled, cartoon strips 20, such as the one illustrated i.n Fig. 4, must be placed over tile alignment gri.d 16 of the sectional form lO. The outer side of each cartoon strip 20 contai.ns color-coded marking so that when all strips 20 are secured to the sectional form lO, as seen in Fig. 2, a complete design wi.ll be formed. The cartoon strips 2U are sixed such that the width of each stri.p corresponds to the spaci.ng oE the horizontal grid lines 12 between whi.ch it i.s to be placed. As seen in Fig. l, the spaci.ng oE the hori.zontal grid li.nes 12 preferably decreases in the regions of steep curvature of the outer surface of the sectional form lO to ensure that the flat cartoon stri.ps 20 can conform to the outer surface of the secti.onal form lO ~ithout excessive bending. The cartoon strips 'I 1~
pre~er,ably inclu(le verticaL alignlnent indicia 22 which aid the ~abricator in alignin~ the cartoon strips 20 with the vertical gri~ lines 1~1 ancl in(licia 24 o:E the other cartoon strips. Proper aligrlment will ensure that the cartoon strips 2U, once placed over the alignmetlt grid 16, will. form a coherent pattern over which a lampshade may be fabricated.
In the embodiment illustrated in Figs. 1-4, the sectional form is fabricated of polystyrene or similar material. The cartoon strips 20 are oE paper construction and are held releasably secured to the outer surface of the sectional form 10 using pins 30.
To assemble a lampshade using the sectional form 10, as illustrated herein, the fabricator preferably first places the form 10 on a flat supporting surface. The car-toon strips are then selectively placed between the proper horizontal grid lines 12 and secured to the sectional form 10 using pins 30 or other securing means. Once all of the cartoon strips 20 are in place on the sectional form 10, the fabricator places pieces of cut glass over the cartoon strips, as indicated by the Pattern on the cartoon strips 20. The glass pieces are secured to one another using copper foil, lead came, or other known means. When an en-tire segment is complete, it is removed and set aside. The fabricator then completes the additional number of sections necessary to form a complete lampshade~ Once all of the sections are complete, the individual segments of the lamp-shade are secured to one another to form a complete shade.
If it is desired to avoid the use of a repeating pattern for the lampshade design, a plurality of sets of cartoon strips may be used. For example, if a one-quarter sectional form is used, four sets of cartoon strips would be provided. After each set of cartoon strips is secured to the sectional form 10, the fabricator would form one section of the lampshade as described ahove. Rather than forming the second lampshade section in an identical manner, the fabricator would replace the first set of cartoon strips with the second set and proceed to fabricate a second lamp-shade section having a different design than the first.
Proceedinq in this manner, a complete shade having one non-repeating pattern can be fabricated.
After the lampshade has been assembled, the fabri-cator may remove the cartoon strips and replace them with a different set or sets of cartoon strips containing a differ-ent pattern thereon. With a new cartoon strip in place, the L~ , 3 fabricator may repeat the process described above to produce a lampshade of the same shape, having a new design thereon.
It thus becomes unnecessary for the fabricator to purchase duplicate forms for every design he or she wishes to assem-ble. Similarly, retailers oE such forms need only stocksectional forms of varying shape. By stocking ~ive or six basic exterior shapes, such retailers may offer their cus-tomers a wide variety of differing designs by merely stock-ing a plurality of different cartoon strips for each shape.
This is of ~reat advantage to the retailers as a set of cartoon strips takes up much less storage space than an en-tire sectional form.
Although the imProved sectional form and improved method of fabricating a glass lampshade have been described herein for use with sectional forms only, it will be obvious to one of ordinary skill in the art that -the improvements described herein would be equally usable on molds represent-ing the shape of an entire lampshade. When a grid and car-toon strip method is used with these types of molds, how-ever, the full advantages of the sectional form molds are,of course, not obtained. Additionally, although the im-proved sectional forms and improved method of fabricating a glass lampshade have been described herein in reference to Figs. 1-~1 it will be obvious to those of ordinary skill in the art that many modifications of what is described here could be achieved without departing from the spirit of this invention. It is not the intent of the applicant herein to limit his invention to the specific embodiments disclosed herein.
Claims (6)
1. A method of fabricating a lampshade or the like which comprises:
fabricating a plurality of segments of the shade by the steps of:
(a) placing a form which represents a segment of the completed lampshade upon a supporting surface, the form having a grid of horizontal and vertical lines on its outer surface;
(b) aligning a plurality of cartoon strips with the grid on the outer surface of the form and securing the strips to the form;
(c) placing a series of discrete pieces of glass on the strips;
(d) securing the discrete pieces to one another to form a rigid segment of the shade;
(e) removing the segment of the shade from the form and attached strips; and securing a plurality of segments of the shade to one another to form a complete shade.
fabricating a plurality of segments of the shade by the steps of:
(a) placing a form which represents a segment of the completed lampshade upon a supporting surface, the form having a grid of horizontal and vertical lines on its outer surface;
(b) aligning a plurality of cartoon strips with the grid on the outer surface of the form and securing the strips to the form;
(c) placing a series of discrete pieces of glass on the strips;
(d) securing the discrete pieces to one another to form a rigid segment of the shade;
(e) removing the segment of the shade from the form and attached strips; and securing a plurality of segments of the shade to one another to form a complete shade.
2. A sectional form for fabricating a glass lampshade which comprises:
an outer surface corresponding in shape to the desired shape of the shade, the outer surface corresponding to an integer section of the complete lampshade; and an alignment grid affixed to the outer surface of the sectional form for aligning a plurality of cartoon strips or the like to the outer surface of the sectional form.
an outer surface corresponding in shape to the desired shape of the shade, the outer surface corresponding to an integer section of the complete lampshade; and an alignment grid affixed to the outer surface of the sectional form for aligning a plurality of cartoon strips or the like to the outer surface of the sectional form.
3. A sectional form for fabricating a glass lampshade which comprises:
an outer surface corresponding in shape to the desired shape of the shade, the outer surface corresponding to an integer section of the complete lampshade;
a plurality of cartoon strips having a pattern on one side thereof;
an alignment grid affixed to the outer surface of the sectional form for aligning the cartoon strips on the outer surface of the sectional form; and means for releasably securing the cartoon strips to the outer surface of the sectional form.
an outer surface corresponding in shape to the desired shape of the shade, the outer surface corresponding to an integer section of the complete lampshade;
a plurality of cartoon strips having a pattern on one side thereof;
an alignment grid affixed to the outer surface of the sectional form for aligning the cartoon strips on the outer surface of the sectional form; and means for releasably securing the cartoon strips to the outer surface of the sectional form.
4. The sectional form of claim 3, further including vertical indicia lines on the cartoon strips for aligning the cartoon strips to the alignment grid and indicia on adjacent cartoon strips.
5. The sectional form of claim 3 wherein the cartoon strips extend lengthwise across the width of the form, the length of the cartoon strips corresponding to the width of the form at the location where the cartoon strip is releasably secured to the form.
6. The sectional form of claim 3 wherein the alignment grid is comprised of a plurality of spaced-apart vertical and horizontal lines, the spacing between the lines decreasing as the curvature of the form increases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000434220A CA1224913A (en) | 1983-08-09 | 1983-08-09 | Form and method of fabricating a glass lampshade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000434220A CA1224913A (en) | 1983-08-09 | 1983-08-09 | Form and method of fabricating a glass lampshade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1224913A true CA1224913A (en) | 1987-08-04 |
Family
ID=4125838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000434220A Expired CA1224913A (en) | 1983-08-09 | 1983-08-09 | Form and method of fabricating a glass lampshade |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1224913A (en) |
-
1983
- 1983-08-09 CA CA000434220A patent/CA1224913A/en not_active Expired
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