U.S. patent number 3,837,253 [Application Number 05/339,438] was granted by the patent office on 1974-09-24 for poster frame extrusion cutting guides.
Invention is credited to John Whit Slemmons.
United States Patent |
3,837,253 |
Slemmons |
September 24, 1974 |
POSTER FRAME EXTRUSION CUTTING GUIDES
Abstract
An E-shaped cross-section guide for cutting art frames and
similar materials is presented. The guide comprises 3 parallel
ridges coupled to a base and spaced so that the 2 parallel planar
protions of a poster frame slidably but snugly fit over the center
ridge. One end of the tool is cut off at a 90.degree. angle for
cutting straight-cut extrusions. The other end is cut off at a
45.degree. angle for cutting extrusions at a 45.degree. angle. Near
the 90.degree. end, slots are cut into the three ridges permitting
the guide to be used for mitering poster frames. In operation, the
poster frame is slide onto the guide and the end of the poster
frame is aligned with the selected part of the guide. The guide
then supports the extrusion and the blade cutting the poster frame.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present
invention relates to guides used to support art frames during
cutting. 2. OF THE Prior Art Pictures and placards have long been
mounted on walls. In recent years, the frames for such pictures
have in some cases as a matter of artistic choice been replaced by
generally U-shaped cross-section art frames which are used not only
to hold posters but also to hold glass and relatively thin artwork
so that the picture or placard appears to be floating in a glass
background. One of the chief advantages of the art or poster frame
system is the speed and lack of expense as compared to the problems
involved in making plaques and normal picture frames. In order to
give the appearance of a picture frame, the poster frame material
is cut at a 45.degree. angle to its length so that the poster
frames along perpendicular edges fit closely to form an attractive
corner. This has previously been done by hand and it is a very
exacting job requiring precise control of dimensions and very
precise control of the cutting sequence. The prior art discloses no
tools to aid the artist in this task, or to permit the unskilled
person to make custom frames by cutting art frame material. SUMMARY
OF THE INVENTION A poster or art frame extrusion cutting guide is
presented. A first example comprises a small aluminum dye cast
E-shaped cross-section guide, having a center, longitudinal ridge
capable of fitting closely around the two parallel portions of a
poster or art frame cross section. The base to which the center
ridge is coupled also has two side ridges parallel to and disposed
relatively close to the center ridge. One end of the guide is
terminated at 90.degree. to its length while the other end is cut
off at a 45.degree. angle from the top of the ridges which are the
points of the E. The 90.degree. end is used for the cutting of
frames wherein only 2 art frame members are to be used on a poster
or similar material. The 45.degree. end is used for the cutting of
frames wherein 4 art frame members with mitered corners can be
fitted together to form a corner and two adjacent sides of an
attractive finished poster frame. The guides permit the easy
fabrication of custom frames from plastic extrusions. Two parallel
slots are defined by the parallel center ridge and two parallel
side ridges or sides all coupled to the base. The center ridge may
include serrations to increase the friction with a frame inserted
in the guide and may include grooves along most of its length to
ease the insertion therein of the art frame extrusion material. The
sides and the center ridge extend the entire length of the tool and
are each cut by vertical slots near the 90.degree. end. The
90.degree. end of the center ridge forms a small vertical base
separated from the rest of the center support by the vertical
generally X-cross-sectioned slots perpendicular to each other and
at an angle of 45.degree. and 135.degree. to the center ridge. In
order to cut a poster frame at a 90 degree angle to its length, the
frame material is inserted in the tool upside down so that the
bottom of the frame is near the top of the tool and the sides of
the frame fit relatively tightly around the center ridge and
substantially fill the 2 parallel slots. The poster frame material
is selectively aligned with the 90.degree. end and a blade such as
a razor blade cuts off the frame along the end of the guide. The
frame material is then reversed, if necessary and cut to the
desired length by repeating the process. In order to cut the end of
a frame at a 45.degree. angle, the poster frame is measured to a
point where the poster frame is to be cut. That is aligned with a
45.degree. end alignment mark near the 45.degree. end and a blade
cuts the poster frame along the 45.degree. end. The frame material
is then longitudinally reversed, aligned and cut again along the
45.degree. end. The two parallel side ridges or members may be
shorter than the height of the center member along the central
portion of their length and taller than the height of the center
member near each end. The center member should have a generally
uniform height along its length so that it fits well with the
poster frame extrusion materials, also known as frames or frame
members or frame materials inserted in the guide for cutting. This
combination makes it easier for the thumb to grasp and help hold
the guide during cutting. Various other examples may be fabricated
within the general scope of the invention described herein. DRAWING
SUMMARY Reference should be made at this time to the following
detailed description which should be read in conjunction with the
following drawings: FIG. 1 is a three quarter view of an example of
a cutting guide for art frames according to the present invention;
FIG. 2 is a side view of the cutting guide of FIG. 1; FIG. 3 is a
bottom view of the cutting guide of FIG. 1; FIG. 4 is a cut-away
side view of the guide of FIG. 1; FIG. 5 is a front view of the
cutting guide of FIG. 1; FIG. 6 is a top view of the cutting guide
of FIG. 1; FIG. 7 is a cut-away view from the front along the line
7--7 of FIG. 2; FIG. 8 illustrates the insertion of a poster frame
segment into the cutting guide of FIG. 2. FIG. 9 illustrates the
side view of the alignment for cutting of an art frame in the guide
of FIG. 1 and illustrates a cross section of an art frame; FIG. 10
illustrates a bottom view of an art frame being aligned for
mitering in a different fashion from that illustrated in FIG. 9 by
the guide of FIG. 1; and FIG. 11 illustrates the portion of the
guide including additional vertical slots disposed at a 45.degree.
angle to the length of the guide and used for mitering an art frame
as shown in FIG. 14; FIG. 12 which illustrates a corner of an art
frame, cut along the 45.degree. end of the guide; FIG. 13 which
illustrates an edge of an art frame cut along the 90.degree. end of
the guide; and FIG. 14 which illustrates a corner of a frame
fabricated by cutting along the slots near the 90.degree. end,
which slots are best illustrated in FIG. 11.
Inventors: |
Slemmons; John Whit (Santa Ana,
CA) |
Family
ID: |
23329010 |
Appl.
No.: |
05/339,438 |
Filed: |
March 8, 1973 |
Current U.S.
Class: |
83/762;
83/581 |
Current CPC
Class: |
B27G
5/02 (20130101); B27G 5/026 (20130101); Y10T
83/695 (20150401); Y10T 83/8773 (20150401) |
Current International
Class: |
B27G
5/02 (20060101); B27G 5/00 (20060101); B23b
051/10 (); B27g 005/02 () |
Field of
Search: |
;83/762,761,763,821,581
;30/286,289,290 ;269/87.2,87.1 ;144/216,217 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Schran; Donald R.
Claims
I claim:
1. A cutting guide for art frames comprising an elongated base
having a center ridge coupled to and parallel to the base and also
having a side ridge coupled to and extending parallel to extending
said base on each side of the center ridge;
the surface of the base between the center ridge and each side
ridge together with the adjacent surfaces of the center ridge and
the side ridge defining a slot; and
said guide is terminated at a first end at a 90.degree. angle to
its length from the top of the ridges to the bottom of the base and
at a 45.degree. angle from the top of the ridges to the bottom of
the base at the opposite end.
2. The invention of claim 1 wherein said guide is longitudinally
symmetrical, the side surfaces of the center ridge define parallel
planes with one axis parallel to the length of said guide and the
opposite axis parallel to the height of said guide; the side ridges
are taller than the center ridge; and at the 45.degree. end, the
tops of the side ridges are joined by an end support.
3. The invention of claim 1 wherein the surfaces of the ridges near
the 90.degree. end define two vertical slots perpendicular to each
other, each of the slots at a 45.degree. angle to the side surface
of the center ridge, each slot extending from the 90.degree. end
very near the side surface of the guide to the opposite side of the
guide at a point approximately the width of the guide from the
90.degree. end.
4. The invention of claim 3 wherein at least a part of the top
surface of the center ridge defines serrations capable of
increasing the friction thereof and at least a part of the top
surface of the center ridge defines grooves along the edges
adjacent to the planar sides.
5. The invention of claim 4 wherein the interior surface of each
side ridge defines a mark near each end of the guide.
6. A cutting tool guide comprising an elongated base coupled to
three parallel members extending out from and parallel to the base
and having a generally E-shaped cross-section, and one end surface
of the guide said guide tapering from the points of the E to the
base at a 45.degree. angle to the length and at the opposite end
surface being at a 90.degree. angle to the length.
7. The invention of claim 6 wherein at the 45.degree. end the top
of the sides of the E are joined by a rectangular support, and the
surfaces of the guide near the 90.degree. end define two additional
perpendicular slots having a generally X-shaped cross-section, said
slots each being oriented at a 45.degree. angle to the length of
the members which define the E-shaped cross-section.
8. The invention of claim 7 wherein the surface of the center
member farthest from the base defines serrations along part of its
length and grooves along the sides of a part of the length of the
surface.
9. The invention of claim 7 wherein the central portion of each of
the two side members is shorter than the height of the center one
of the three parallel members and the height of each side member
near each end is taller than the height of the center member,
wherein the center member has a generally uniform height along its
length.
Description
DETAILED DESCRIPTION
Reference should be made at this time to FIGS. 1-11 which
illustrate selected views of a cutting guide for poster frames 32,
art frames, photograph frames or similar frames hereafter referred
to as art frames, frames, members, or materials. The example
described in the present detailed description and illustrated in
the drawings may be modified within the scope of the present
invention, particularly by removing certain elements thereof.
The guide 10 comprises a base or bottom 22 coupled to and parallel
to a center ridge 18 and coupled and parallel to side ridges 19,
20. At one end 12, the guide 10 is fabricated so that it is cut off
at a 90 degree angle to its length from the top of the ridges 18-20
to the bottom of the base 22. At the other end 14, the guide 10 is
fabricated so that it is cut back at a 45.degree. angle from the
top of the ridges 18-20 to the bottom of the base 22. The adjacent
surfaces of the center ridge 18, the bottom or base 22 and the side
ridges 19, 20 form two parallel slots 16.
The center ridge 18 may have its top two corners rounded off by
grooves 24 to ease the placement of frames 32 thereon. The center
ridge 18 may also have serrations 26 to increase the friction of
frames 32 and prevent them from sliding in a longitudinal
direction. The 45 degree end 14 may include a support 28 between
the tops of the ends of the side ridges 19, 20. The frame 32
extrusion or material has spring clamp properties which allow it to
clamp the material being framed. When placed in the guide 10 the
extrusion slightly grips the center ridge 18 allowing the guide to
remain aligned once it is properly positioned for cutting. The term
"frame" 32 is used to define segments of material used to form art
frames.
FIG. 8 illustrates the insertion of frame material 32 into the
guide 10. It is most easy to insert the frame 32 at an angle as
illustrated in FIG. 8, since the opening at the 45 degree end 14 is
aligned at a 45.degree. angle. The frame 32 fits easily in the
opposite end 12, since there is no support 28 at the end 12. After
insertion, the frame 32 is aligned in parallel to the guide 10 as
illustrated in FIG. 9. The frame sides 34, 36 are pushed down as
far towards the bottom 22 of the guide 10 as possible, so that the
bottom 38 of the frame 32 fits as closely as possible to the
serrations 26 of the center ridge 18. The guide 10 may be used with
art frames 32 which are symmetrical (U-shaped cross section) or
unsymmetrical as illustrated in FIG. 9. Unsymmetrical art frames
similar to that illustrated in FIG. 9 can be used for more purposes
than symmetrical art frames.
After insertion, the frame 32 is aligned for cutting along one of
the ends 12, 14 of the guide 10. If the cut is to be at a
90.degree. angle, the point at which the frame 32 is to be cut is
aligned at the 90.degree. end 12 of the guide 10. A razor of other
similar blade then cuts the art frame 32 along the guide end 12,
and the person making the cut uses the guide end 12 to brace and
guide the blade during the cutting.
If the cut is to be made at a 45.degree. angle, the distance is
measured off and the place where the cut is to begin is marked on
the bottom 38 of the frame 32. In cases of 45.degree. cuts, the
bottom 38 of the frame is always the longer portion, so that two
adjacent frame segments can be laid together to form a right angle
with their bottoms forming the outside surface of the joined frame
segments. The mark is then aligned with a 45.degree. alignment mark
30 near the 45.degree. end 14 of the guide 10. The alignment mark
30 is offset a short distance which is a function of the thickness
of the material used for the frame 32 in order to compensate for
the thickness of the frame 32. For most types of frame material,
the alignment mark should be placed between one thirty-second and
one-sixteenth of an inch from the end 14 of the guide 10.
Offsetting the alignment mark makes the portion of the frame 32
which is cut approximately one-sixteenth to one thirty-second of an
inch longer than it would be otherwise to insure a tight,
good-looking fit when the adjacent segments of frame are placed
together to form a finished rectangular frame. The person who uses
the guide 10 can compensate for different types of frame material
by aligning the mark on the bottom of the frame 32 directly over or
slightly to either side of the 45.degree. end alignment mark
30.
After aligning the poster frame for cutting, the cutter then cuts
off the frame along the 45.degree. end, using the 45.degree. end 14
as a guide and a support for the blade. The 45.degree. end support
28 furnishes additional support for the blade during cutting at
45.degree. angles.
A current fashion for hanging pictures and other thin materials
comprises the setting of the picture or other material behind glass
or between glass, so that the picture appears to float in a glass
case on the wall surface. The glass or the back of the picture is
actually affixed to the wall. The appearance is enhanced, according
to many artists, by running poster frame material completely around
the picture in a rectangle. This can be done by cutting straight
segments of poster frame 32 at a 45.degree. angle at each end by
the use of the guide 10. The four segments of frame 32 are then
placed on the four edges of glass to form a completed rectangle
around the picture. If the poster frame 32 is unsymmetrical, the
user has a choice as to which side he will have facing the viewer.
Dowels may be used to insure tight fit where the material to be
framed is thin.
Other artists disagree and state that material looks best when it
is floating in glass when there is only a frame at the top and a
frame at the bottom with the sides left open. If this effect is
sought, the art frame 32 is cut off at a 90.degree. angle and only
two portions are used, one at the top and one at the bottom of the
picture to be framed, rather than to use four segments, one at each
of the four sides of the picture to be framed.
Artists, being as they are, other artists strongly disagree with
both of the techniques previously described and state that the most
attractive way to hang art work framed by frame material 32 is to
turn the poster frame 32 on edge so that the bottom 38 of the frame
32, rather than any side of the frame 32 faces the viewer. They
claim that this permits the giving of a three dimensional effect
whereby the art work appears to be and is recessed within the
poster frame as shown by FIG. 14.
FIGS. 10 and 11 illustrate the use of the guide 10 to cut poster
frame segments 32 as desired by these artists.
In order to form a rectangle in which the art work may be recessed,
the poster frame is cut at a 45.degree. angle so that one side
(which is to be the outside of the frame) is longer than the
opposite side. The poster frame 32 is inserted in the guide 10
after placing a mark on the side which is to be the longest side at
the point which would give it the required length. The mark on the
frame 32 is then aligned with the mitering alignment mark 46. This
alignment mark has been adjusted in a manner similar to the
adjustment for the 45.degree. alignment mark 30 to give a little
bit of extra length after the frame member 32 is cut. The frame 32
is then cut along either one of the slots 42, 50. The surface of
the slot farthest from the 90.degree. end base forms the guide and
support for the blade during cutting. The frame 32 is cut only once
so that the entire frame is cut off at a 45.degree. angle. The
guide 10 includes two slots 42, 43 for greater flexibility in
cutting frame members 32. In the cutting of any one frame member,
each slot is used to cut one end of the frame 32. One side is first
cut using the surface farthest from the 90.degree. end 12 of either
slot 42 or 50. The frame member 32 is then removed from the guide
10 and inserted in the opposite direction and once again cut using
the surface farthest from the 90.degree. end 12 of the slot 42 or
50 which was not used for the first cutting. The second cutting is
guided so that the same side is longest which was longest when the
frame 32 was cut the first time. This is done because when four
frame segments 32 are put together to form a rectangular frame, the
side forming the outer surface must be longer than the side forming
the inner surface when the segments are put together to form a
rectangle into which the picture or other art work is to be placed.
The four corners are held together by small plastic or metal
L-shaped clips. The shorter side 34 of the art frame 32 becomes the
inner surface of the rectangle so formed and the taller side 36
becomes the outer surface. The surface 38 of the poster frame 32
faces a viewer who stands in front of the completed frame. The art
work to be framed is placed in the rectangle with the surface to be
viewed touching the top of the side 34 and facing the same way the
bottom 38 of the poster frame material 32 faces. The coupling
apparatus used at the corners of the completed frame to hold the
four frame segments 32 together may include tabs which fold over
the back of the art work to hold it in place. Alternative means to
hold the art work in place include but are not limited to art
tabs.
The two parallel side ridges 20 or members 20 may be shorter than
the height of the center member 18 along the central portion of
their length and taller than the height of the center member near
each end 12, 14. The center member 18 should have a generally
uniform height along its length so that it fits well with the
poster frame extrusion materials, also known as frames or frame
members or frame materials inserted as in the guide 10 for cutting.
This combination makes it easier for the thumb or fingers to grasp
and help hold the guide 10 during cutting. various other examples
may be fabricated within the general scope of the invention
described herein. The scope of the invention is limited only by the
following claims :
* * * * *