U.S. patent number 3,657,796 [Application Number 05/050,191] was granted by the patent office on 1972-04-25 for method of mounting canvas on artist's frame.
Invention is credited to Marshall Gochnauer.
United States Patent |
3,657,796 |
Gochnauer |
April 25, 1972 |
METHOD OF MOUNTING CANVAS ON ARTIST'S FRAME
Abstract
A frame assembly for mounting artist's canvas and method of
making same wherein the frame assembly includes a plurality of
frame members having mitred ends which are held together at a
plurality of mitred joints by corner plates. Each of the corner
plates has a plurality of apertures therein and a plurality of
nails extend through each of the corner plates and into respective
ones of the frame members in predetermined directions to permit the
corners of the artist's canvas to be inserted between the mitred
joints to provide smooth, neat-appearing corners for the
canvas.
Inventors: |
Gochnauer; Marshall
(Washington, DC) |
Family
ID: |
21963861 |
Appl.
No.: |
05/050,191 |
Filed: |
June 26, 1970 |
Current U.S.
Class: |
29/432; 160/381;
29/525.12; 29/525.15 |
Current CPC
Class: |
B44D
3/185 (20130101); Y10T 29/49833 (20150115); Y10T
29/49964 (20150115); Y10T 29/4997 (20150115) |
Current International
Class: |
B44D
3/18 (20060101); B23p 011/00 () |
Field of
Search: |
;160/371,374,374.1,381X
;29/432,526X |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Moon; Charlie T.
Claims
What is claimed is:
1. A method of mounting artists' canvas on a frame assembly having
a plurality of frame members with mitred ends and rear and front
face surfaces comprising the steps of:
placing said frame members in position with selected ones of said
mitred ends in substantially abutting relationship with each other
to form mitred joints;
locating a corner plate of substantially trapezoidal shape having a
longest base edge and a top edge with apertures therein at each of
said mitred joints;
placing first nails through each one of said apertures adjacent
said longest base edge of each of said plates and substantially
perpendicularly into said rear face surfaces of respective ones of
said frame members;
placing second nails through each one of other of said apertures
adjacent said longest base edge of each of said plates and at an
angle less than 90.degree. into said rear face surfaces of
respective ones of said frame members;
fastening said canvas onto predetermined portions of said rear face
surfaces of said frame members to cover said front face
surfaces;
spreading said mitred joints;
tucking corners of said canvas into said spread joints;
closing said joints to enable said mitred ends of said frame
members to hold said canvas corners within said closed joints;
placing third nails through each one of said apertures adjacent
said top edge of each of said plates and at an angle less than
90.degree. with said rear face surface of respective ones of said
frame member;
placing fourth nails through each one of other of said apertures
adjacent said top edge of each of said plates and at an angle less
than 90.degree. into said rear face surfaces of respective ones of
said frame members; and
fastening loose ends of said canvas adjacent the corners thereof
onto said rear surfaces of said frame members to provide smooth,
neat-appearing corners for said canvas.
2. A method as in claim 1 including the steps of:
placing said second, third and fourth nails into said frame members
in directions pointing toward the outside perimeter of said
assembly.
3. A method as in claim 2 wherein said step of fastening said
canvas onto predetermined portions of said front face surfaces of
said frame members further includes the step of:
stapling said canvas to said predetermined portions beginning at
the center of each of said frame members and working toward said
mitred corners thereof.
4. A method as in claim 2 further including the step of:
placing screws through predetermined ones of said apertures in each
of said plates and into respective ones of said frame members.
5. A method as in claim 2 further including the step of:
inserting at least one brace member in a friction fit between two
of said frame members; and
fastening said brace members to said two frame members.
6. A method as in claim 2 further including the step of:
fastening molding strips onto the front face surface of said frame
member.
Description
The present invention relates to a frame assembly for mounting
artist's canvas and a method of making same and more particularly
to an assembly and method whereby the canvas is inserted and held
between mitred corners of frame members of the assembly to provide
smooth and neat-appearing corners for the canvas.
One of the most persistent problems confronted by artists in the
mounting of their canvas onto frames has been the existence of
loose or untidy-appearing corners of the canvas. The present
invention overcomes this problem to provide smooth, neat-appearing
corners for the canvas when mounted on a frame assembly.
The primary object of this invention is to provide a canvas-covered
artist's frame assembly wherein a plurality of frame members having
mitred ends are placed together to form mitred joints and wherein
corner plate members are fastened to the frame members at the
mitred joints in such a way as to permit the insertion of the
canvas corners into the mitred joint to provide smooth and
neat-appearing corners for the canvas as it is mounted on the frame
assembly.
FIG. 1 is a perspective view of one corner of a frame assembly
embodying the principles of the present invention and illustrating
the construction and the method whereby the corners of the canvas
are inserted into the mitred joints;
FIG. 2 is a rear elevation view of an embodiment of the invention
wherein a reinforcing frame piece is utilized;
FIG. 3 is a fragmentary cross-sectional view of a frame member of
the assembly including molding strips;
FIG. 4 is a fragmentary view of a corner of the frame assembly
immediately after insertion of the canvas into the mitred joint;
and
FIG. 5 is a view similar to FIG. 4 showing the completed
corner.
With reference now to the drawings, wherein like reference
characters designate like or corresponding parts throughout the
several views, there is shown in FIG. 1 two frame members 10 and 12
having mitred ends 14 and 16. The frame members 10 and 12 also have
rear face surfaces 18 and 20 onto which is fastened a corner plate
22 of metal or plastic material. It should be Understood that
although the discussion with respect to FIG. 1 relates to only one
mitred joint that similar joints are present in the frame
assembly.
The corner plate 22 has a plurality of apertures therein and a
plurality of fastening means are inserted through the apertures and
into the rear surfaces 18 and 20 of the frame members. More
specifically, the corner member 22 is substantially trapezoidal in
shape and includes a longest base edge 24, a top edge and two
angled edges 28 and 30. A first fastening member or nail 32 extends
through one of the apertures adjacent the longest base edge 24 and
into the rear surface base 18 of frame member 10. The nail 32 is
driven substantially perpendicularly with respect to the rear face
surface 18 and into the frame member 10.
A second fastening member or nail 34 extends through another of the
apertures in the corner plate 22 which is located adjacent the
longest base edge 24 and the nail 34 is driven into the rear face
surface 20 at an angle less than 90.degree. with respect thereto
and with the point 36 of the nail directed toward the outside
perimeter of the assembly and toward the outside surface 38 of the
frame member 12. Fourth and fifth fastening means or nails 40 and
42, respectively, extend through additional apertures in the plate
22 and extend respectively into the frame member 10 and 12 at
angles less than 90.degree. with respect to the rear face surfaces
18 and 20 so that the points of the nails 40 and 42 are directed
toward the outside perimeter of the assembly and toward the outside
surfaces 44 and 38 of the members 10 and 12, respectively.
The frame assembly, when completed as illustrated in FIG. 2, has
the corner 46 of the canvas inserted between the mitred end 14 and
16 of the frame members and any excess portions of the canvas 48
adjacent to the corner 46 which are not inserted into the mitred
joint are folded and stapled to one of the rear face surfaces 18 or
20 so that a smooth and neat-appearing corner is provided for the
canvas 48.
If desired, first and second screws 50 and 52 can be inserted
through additional apertures of the plate 22 and into the
respective frame members 10 and 12 to provide additional
strengthening for the joint.
In the event that a large frame assembly is used it may be
desirable to provide reinforcing or stabilizing members between the
various frame members. As shown in FIG. 3 there may be provided a
cross member 51 and two parallel diagonal members 53. The cross
member 51 extends between and frictionally engages the frame member
10 and the frame member 56. A triangular gusset plate 54 overlies
each end of the cross member 51 and is nailed or screwed thereto as
at 55 and to the respective frame member 10 or 56 as at 57. Each
diagonal member 53 extends from one of the gusset plates 54 to a
corner of the frame assembly. One of each member 53 is nailed or
screwed to its respective gusset plate 54 as at 58, and the other
end is nailed or screwed to the respective corner member 22 as at
59. In the illustrated embodiment the gusset plates 54 are offset
from the center line of the cross member 51 to facilitate the
securing of the diagonal members 53. If the diagonal members 53 are
not used, the gusset plates 54 will ordinarily be aligned with the
center line of the cross member 51.
If desired, molding strips 82 (FIG. 3) can be fastened along the
outer edges of the frame members so that the canvas 48 when mounted
on the frame assembly is held away from the frame members to avoid
the possibility that the outline of the frame might appear when a
drawing or painting is made on the canvas. In addition, molding
strips or blocks of the same depth such as block 84 can be placed
along the inner edge of each of the frame members so that when the
corner plate 22, for example, is fastened to the frame members 10
and 12 the molding strips 82 and 84 together form a stable base and
support the frame member 10 in such a way as to avoid any
possibility of splitting of the frame member or of twisting
movement due to the unsupported inner edge when the plate 22 is
being fitted to the frame member 10.
In the method of mounting the canvas on the frame assembly, as best
illustrated in FIG. 1, the frame members 10, 12, 56 and 57 each
having mitred ends and rear face surfaces are positioned with
selected ones of the mitred ends in substantially abutting
relationship with each other to form mitred joints. Each of these
joints is similar to that illustrated in FIG. 1 and the steps
hereinafter set forth with respect to the joint illustrated in FIG.
1 are equally applicable with respect to the other joints.
A corner plate 22 of substantially trapezoidal shape and having a
longest base edge 24 and a top edge 26 with apertures therein is
located adjacent the joint formed by the abutting ends 14 and 16. A
first nail 32 is then inserted through one of the apertures in the
plate adjacent the longest base edge 24 and is forced into the
frame member 10 at substantially a right angle with the rear face
surface 18 thereof. A second nail 34 is then placed through another
aperture adjacent the longest base edge 24 and at an angle less
than 90.degree. with respect to the rear face surface 20 of frame
member 12. The point of the nail 36 is directed outwardly and
towards the outer surface 38 of the frame member 12 so that the
mitred ends 14 and 16 are forced together.
The canvas 48 is then fastened onto the frame members by driving
staples 47 through the edges of the canvas into the rear face
surface of the frame members, beginning at the center of each frame
member and working toward the ends but inserting no staples at the
location of the mitred joint. The mitred joint and the ends 14 and
16 are then spread apart, as by the use of a screwdriver. The
corner 46 of the canvas is then tucked or inserted between the ends
14 and 16. Then the canvas at the mitre is forced into the crack
between the ends 14 and 16 in a direction parallel to the plane of
the frame, using a putty knife or the like. This operation draws
the canvas into intimate and wrinkle-free contact with the
peripheral edges of the frame members. The ends 14 and 16 are then
permitted to close, by withdrawing the screwdriver, so that the
corner 46 of the canvas is tightly held within the mitred
joint.
A third nail 40 is then inserted through an aperture in the plate
22 adjacent the top edge 26 thereof and into the frame member 10 at
an angle less than 90.degree. with respect to the rear face surface
18 thereof so that the point (not shown) of the nail 40 is directed
towards the outer perimeter of the frame assembly and towards the
outer surface 44 of the frame member 10. Similarly, a fourth nail
42 is inserted through another aperture of the plate 22 which is
located adjacent the top edge 26 thereof and the nail is inserted
into the frame member 12 at an angle less than 90.degree. with
respect to the rear face surface 20 so that the point 43 of the
nail is directed toward the outer perimeter of the frame assembly
and toward the outer surface 38 of the frame member 12.
The insertion of the nails 40 and 42 with the respective points
thereof directed toward the outer perimeter of the frame assembly
forces the frame members 10 and 12 together so that the ends 14 and
16 tightly contact the corner 46 of the canvas which has been
tucked therebetween.
The tucking operation leaves the excess canvas, which is always
present at the corner, in the form of two two-layer folds 49 and 51
adjacent the tucked-in corner 46 and projecting upwardly from the
rear surfaces 18 and 20 of the frame members, as shown in FIG. 4.
These folds 49 and 51 are then pressed together with the fingers
and are then bent down in the same direction into contact with one
or the other of the faces 18 or 20 and secured with a staple 53.
The result is that the peripheral edges of the frame members remain
covered with a single wrinkle-free layer of canvas and that the
excess canvas on the rear face of the joint lies flat and
wrinkle-free against the frame members, as shown at 53 in FIG. 5.
More specifically, this excess canvas is four layers thick, since
each of the folds 49 and 51 consists of two layers.
In the event that the joint is desired to be strengthened, screws
50 and 52 can be inserted through apertures in the plate 22 and
into the respective frame members 10 and 12.
Thus, this invention provides for a unique frame assembly for
mounting artists' canvas and for a method of producing such a frame
assembly whereby the corners of the canvas are inserted between the
mitred ends of the frame members of the assembly and whereby any
portions of the canvas adjacent the corners thereof which are not
inserted into the mitred joints can be neatly folded and stapled to
the rear surfaces of the frame members so that smooth and
neat-appearing corners are provided for the canvas as it is mounted
on the frame assembly.
Obviously modifications and variations of the present invention are
possible in light of the above teachings.
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