US3787934A

US3787934A - Device for joining canvas boards

Info

Publication number: US3787934A
Application number: US00270664A
Authority: US
Inventors: E Gross
Original assignee: Individual
Current assignee: Individual
Priority date: 1972-07-11
Filing date: 1972-07-11
Publication date: 1974-01-29
Anticipated expiration: 1991-01-29

Abstract

A device for joining one canvas board having a freshly painted surface to another board in spaced, substantially parallel relation thereto and protecting the freshly painted surface. A clip member in the form of a channel member is adapted to be fitted over an edge of one of the boards and an elongated spacer member is mounted on the clip member, in particular being secured at one end to a flange of the channel member, and is disposed so as to extend in a direction away from and generally perpendicular to the plane of the one canvas board. A pin member is secured to and extends from the spacer member in a direction away from and generally perpendicular to the plane of the one board and is adapted to be driven into the other board. Several devices, for example four, are used to join two canvas boards.

Description

United States Patent [191 Gross 1 1 DEVICE FOR JOINING CANVAS BOARDS [76] Inventor: Edward F. Gross, 456 Capen Blvd.,

Eggertsville, NY. 14226 [22] Filed: July 11, 1972 [21] Appl. No.: 270,664

[52] US. Cl 24/85 R, 52/683, 248/216 [51] Int. Cl A44b 21/00 [58] Field of Search 24/85 R, 85 A, 85 B, 73 B, 24/73 P, 81 B; 248/494, 216; 16/86 R;

[5 6] References Cited UNITED STATES PATENTS 1,632,761 6/1927 Clark 24/85 R 2,101,378 12/1937 Wiskoff 24/85 B 3,198,244 8/1965 Mairson n 24/85 R 1,496,533 6/1924 Eyster 248/494 FOREIGN PATENTS OR APPLICATIONS 674,787 10/1929 France 24/85 R [451 Jan, 29, 1974 Primary Examiner-Bobby R. Gay Assistant Examiner-Kenneth J. Dorner Attorney, Agent, or Firm-Christel & Bean [57] 7 ABSTRACT A device for joining one canvas board having a freshly painted surface to another board in spaced, substantially parallel relation thereto and protecting the freshly painted surface. A clip member in the form of a channel member is adapted to be fitted over an edge of one of the boards and an elongated spacer member is mounted on the clip member, in particular being secured at one end to a flange of the channel member, and is disposed so as to extend in a direction away from and generally perpendicular to the plane of the one canvas board. A pin member is secured to and extends from the spacer member in a direction away from and generally perpendicular to the plane of the one board and is adapted to be driven into the other board. Several devices, for example four, are used to join two canvas boards.

10 Claims, 8 Drawing Figures DEVICE FOR JOINING CANVAS BOARDS BACKGROUND OF THE INVENTION This invention relates to devices used by artistic painters, and more particularly to a new and improved device for joining one canvas board having a freshly painted surface to another board in spaced relation to protect the painted surface.

When an artist has finished painting on a canvas board, it is important to protect the freshly painted surface while it is drying as the canvas board is transported and stored. This can be done by devices for joining one canvas board having a freshly painted surface to another canvas board in spaced, substantially parallel relation thereto and protecting the freshly painted surface. It is important that such devices be effective in joining the two canvas boards and at the same time be easy to install. Furthermore, in many but not all instances the two canvas boards will have the same size and shape, so it is desirable that such devices be capable of joining canvas boards of the same as well as different sizes and shapes.

SUMMARY OF THE INVENTION It is, therefore, an object of the present invention to provide a new and improved device for joining one canvas board to another board in spaced, substantially parallel relation thereto and protecting the freshly painted surface.

It is a further object of the present invention to provide such a device which is effective in joining the two boards and at the same time is easy to install or apply.

It is a further object of the present invention to provide such a device which is capable of joining boards having the same as well as different sizes and shapes.

It is a further object of this invention to provide such a device which is simple in construction and easy and economical to manufacture.

The present invention provides a device for joining one canvas board having a freshly painted surface to another board in spaced, substantially parallel relation thereto and protecting the freshly painted surface. The device comprises a clip member adapted to be fitted over an edge of one of the boards, a spacer member secured to and extending out from the clip member, and a pin member secured to and extending out from the spacer member and adapted to be driven into the other board. Several devices are used at corresponding locations spaced around the boards.

The foregoing and additional advantages and characterizing features of the present invention will become clearly apparent upon a reading of the ensuing detailed description together with the included drawing wherein:

BRIEF DESCRIPTION OF THE DRAWIN FIGURES FIG. I is a perspective view showing a device according to the present invention as it would appear in use joining two boards of substantially the same size;

FIG. 2 is a perspective view showing the device of FIG. I joining a relatively small board to a relatively larger board;

FIG. 3 is a perspective view showing the device of FIG. I joining two rectangular boards disposed in different directions;

FIG. 4 is a perspective view showing the device of FIG. 1 joining two boards to a third board;

FIG. 5 is a perspective view of a device according to the present invention;

FIG. 6 is a top plan view thereof;

FIG. 7 is an end elevational view thereof; and

FIG. 8 is a sectional view taken about about on line 8-8 of FIG. 2.

DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENT Referring now to the drawing a device I0 according to the present invention is shown in FIG. 1 as it would appear in use joining together two canvas boards ll, 12 of substantially the same size. Preferably four devices 10 are used, each being positioned adjacent one of the corners. Device 10 can be used with equal ease and effectiveness in joining one relatively small canvas board 13 to a relatively larger canvas board 14 as shown in FIG. 2, or in joining two rectangular shaped canvas boards l5, 16 disposed in different directions as shown in FIG. 3. FIG. 4 shows the manner in which device 10 is used to join two canvas boards l7, 18 to a third canvas board 19.

Referring now to FIG. 5-8, device 10 comprises a clip member 22 adapted to be fitted over an edge of one of the canvas boards. Clip member 22 is in the form of a channel member having a base 24 and a pair of

flange members

25, 26 extending from base 24. The distance between

flange members

25, 26 measured adjacent base 24 is not less than the thickness of the canvas boards measured at the peripheral edge thereof, and according to a preferred mode of the present invention this distance between

flanges

25, 26 is about seven eights of an inch. Each

flange member

25 and 26 is disposed so as to define with base 24 an angle slightly less than ninety degrees for a purpose which will be described. In addition, one of the flange members, in the present illustration flange 26, is formed with a portion 28 between the ends thereof disposed so as to define with base 24 an angle of ninety degrees.

Flange members

25 and 26 preferably are bent outwardly at the corner of each at one end of clip member 22 to provide

tabs

30 and 31, respectively, to facilitate fitting clip member 22 onto' an edge of a canvas board as will be described in detail presently. Each

tab

30, 31 defines an acute angle with the plane of the

flange member

25, 26 from which it is formed, and each tab extends in a direction away from both

flanges

25, 26 and away from base 24.

Device 10 further comprises a spacer member 34 mounted on clip member 22 and disposed so as to extend in a direction away from or out from clip member 22 and generally perpendicular to the plane of the canvas board on which clip member 22 is fitted. Spacer member 34 is elongated having planar, mutually

parallel end surfaces

36 and 37 at opposite ends thereof, and in the present illustration spacer member 34 is solid cylindrical in shape. End surface 36 is secured to one of the flange members, in particular to portion 28 of flange 26, and end surface 37 is disposed in a plane perpendicular to the plane of base 24. According to a preferred mode of the present invention, spacer member 34 is a piece of wood dowel having a length of one-half inch and a diameter of one half inch.

Device 10 of the present, invention finally comprises a pin member 40 secured to andextending from spacer member 34 in a direction away from and generally perpendicular to the plane of the one board on which clip member 22 is fitted, and pin member 40 is adapted to be driven or pushed into the surface of the other board. Pin member 40 extends outwardly from end surface 37 of spacer member and at a right angle to end surface 37, and pin member 40 terminates in a sharp, pointed tip 41. According to a preferred form of the present invention, pin member 40 is a number seventeen nail, and the exposed portion of pin 40 extending out from surface 37 is five sixteenths inch in length.

Device of the present invention is used in the fol lowing manner. Clip member 22 is grasped by hand with the thumb contacting one flange and one or more fingers contacting the other flange, and then clip member 22 is moved into place fitting on the edge of one of the canvas boards. In particular, clip member 22 is moved into place with the

end having tabs

30, 31 receiving the edge of the canvas board first. Clip member 22 is moved or slid onto the edge of the board in a manner such that base 24 is moved or pushed along generally parallel to the edge of the board until the entire length of clip member 22 is fitted on the edge of the board. When this has been done, device 10 is in position on one of the boards as shown in FIGS. 1-4. Then the board having device 10 is held or supported while the other board is brought in proximity thereto, with the corners of the one board aligned with the corners of the other board. The boards are pushed toward each other so that pin member 40 is driven into the surface of the other board close to the edge thereof. As a result, the two boards are joined together at or adjacent one corner of each and spaced apart a distance equal to the length of spacer member 34. This procedure is repeated with additional devices at the remaining aligned corners, in particular a device 10 first is applied to one board by fitting clip member 22 onto the edge thereof and then pin 40 is driven into the surface of the other board near the edge. As shown in FIG. 1, with two boards 11 and 12 of substantially the same size, this is done with four devices 10 one at each of the four aligned corners.

When boards of different sizes and shapes are joined, device 10 will not be installed at aligned corners in all instances as illustrated in FIGS. 24. Device 10 works equally .well with clip member 22 applied to either board, and when clip 22 is fitted on the board having the freshly painted surface, spacer 34 and pin 40 will be adjacent the painted surface and extending out therefrom. It may be desirable to alternate the orientation of devices 10 as illustrated in FIG. 1. When the boards are to be separated, they simply are pulled apart to withdraw pin 40 from the one board and then clip member 22 is pushed along the edge of the other board until it is removed.

FIG. 8 shows in further detail a device 10 as it would appear in position joining two canvas boards, for example boards 13 and 14 as shown in FIG. 2. Board 13 has a canvas 45 streched over one surface thereof, wrapped around the edge thereof, and fastened to the other surface of the board by a plurality of nails or tacks, one of which is designated 46. In addition, board 13 like most canvas boards in current use is provided with a peripheral lip on each surface thereof, in

particular lips

48, 49 shown in FIG. 8, to space the canvas from the board so that a ridge does not appear when the board is framed. Similarly board 14 has a canvas 50 streched over one surface, wrapped around the edge and fastened by nails 52 to the other surface, and board 14 is provided with

peripheral lips

54, 55..

According to the present invention,

flanges

25, 26 of clip member 22 are disposed so that each defines with base member 24 an angle less than ninety degrees. This enhances the firmness with which clip member 22 grips the edge of a board, in particular the inwardly extending

flanges

25, 26 grip the board behind the peripheral lips, and this prevents clip member 22 from slipping off the board in a direction perpendicular to the board edge surface. Also according to the-present invention, one of the flanges such as flange 26 is provided with a portion 28 disposed at a right angle to base 24 so that spacer 34 and pin member 40 extend perpendicular to the plane of the board. This is important to provide an effective joining of two boards.

Clip member 22 of device 10 can be formed of flexible or spring stock material, such as sheet steel or tin having a thickness of approximately 0.0l2-0.0l4 inch, which is bent over on itself to provide

flanges

25, 26 with smooth edges. By way of example, clip member 22 is about two and five-eighths inches long, and each

flange

25, 26 is about one-half inch wide. It is important that

flanges

25, 26 have a relatively small width, such as about one-half inch, so that when device 10 is installed pin member 40 will piece the canvas of the one board near the edge portion which later may be covered by a frame. The head of the nail providing pin member 40 can be soldered in between the bends forming flange 26 and at portion 28. When spacer member 34 is in the form of a wooden dowel, it simply may be driven onto pin 40 and up against flange portion 28.

It is therefore apparent that the present invention accomplishes its intended objects. One canvas board hav ing a freshly painted surface is joined by device 10 of the present invention, in particular a plurality of such devices, to another board in spaced, substantially parallel relation. The painted surface is protected as the two boards are carried or otherwise transported from place to place as well as while the boards are being stored when not in use. Device 10 is effective in joining two boards and at the same time is easy to install or apply. The effective and firm gripping action of channel member 22 on one board, which is easy to apply by virtue of

tabs

30, 31, combines with the easy joining of pin member 40 to the other board. Device 10 is relatively simple in construction, easy and economical to manufacture, and is capable of joining boards of both the same and different sizes and shapes.

While a single embodiment of the present invention has been described with specificity, this has been done by way of illustration, not limitation.

1. A device for joining one canvas board having a freshly painted surface to another board in spaced, substantially parallel relation thereto and protecting the freshly painted surface, said device comprising:

a a clip member adapted to be fitted over an edge of one of said boards so as to grip said one board adjacent the edge thereof, said clip member having a base portion disposed generally parallel to the edge of said one board and at least one flange extending from said base portion and along the surface of said one board when said clip member is fitted on the edge of said one board;

b a spacer member on said flange of said clip member and disposed so as to extend in a direction away from and generally perpendicular to the plane of said one board when said clip member is fitted on the edge of said one board, said spacer member being elongated and having an outer end surface disposed in a plane substantially perpendicular to the plane of said base; and

c a pin member extending out from said end surface of said spacer member in a direction away from and generally perpendicular to the plane of said one board and adapted to be driven into said other board so that said boards are spaced apart a distance substantially equal to the length of said spacer member;

d whereby said canvas board having the freshly painted surface can be joined to said other board by a plurality of said devices at corresponding locations spaced around said boards.

2. A device according to claim 1, wherein said clip member comprises a channel member having a base and a pair of flange members extending from said base, the distance between said flange members measured adjacent said base being not less than the thickness of said canvas boards measured at the peripheral edge thereof.

3. A device for joining one canvas board having a freshly painted surface to another board in spaced, substantially parallel relation thereto and protecting the freshly painted surface, said device comprising:

a a clip member adapted to be fitted over an edge of one of said boards, said clip member comprising a channel member having a base and a pair of flange members extending from said base, the distance between said flange members measured adjacent said-base being not less than the thickness of said canvas board measured at the peripheral edge thereof;

b a spacer member mounted on said clip member and disposed so as to extend in a direction away from and generally perpendicular to the plane of said one board when said clip member is fitted on the edge of said one board, said spacer member being elongated and having planar, mutually parallel end surfaces at opposite ends thereof, one of said end surfaces being secured to one of said flange members and the other of said end surfaces being dis posed in a plane perpendicular to the plane of said base; and

c a pin member secured to and extending from said spacer member in a direction away from and generally perpendicular to the plane of said one board and adapted to be driven into said other board;

4. A device according to claim 3, wherein said pin member extends outwardly from said other end surface of said spacer member and at a right angle to said other end surface. 7

5. A device according to claim 2, wherein the comer of each flange at one end of said clip member is bent outwardly to facilitate fitting said clip member onto the edge of said board.

6. A device according to claim 2, wherein each of said flange members is disposed so as to define with said base member an angle less than ninety degrees.

7. A device for joining one canvas board having a freshly painted surface to another board in spaced, substantially parallel relation thereto and protecting the freshly painted surface, said device comprising:

a a clip member adapted to be fitted over an edge of one of said boards, said clip member comprising a channel member having a base and a pair of flange members extending from said base, the distance between said flange members measured adjacent said base being not less than the thickness of said canvas board measured at the peripheral edge thereof, each of said flange members being disposed so as to define with said base member an angle less than ninety degrees;

b a spacer member mounted on said clip member and disposed so as to extend in a direction away from and generally perpendicular to the plane of said one board when said clip member is fitted on the edge of said one board;

0 one of said flange members being formed with a portion between the ends thereof disposed so as to define with said base member an angle of ninety degrees and said spacer member being secured to said flange portion; and

d a pin member secured to and extending from said spacer member in a direction away from and generally perpendicular to the plane of said one board and adapted to be driven into said other board;

e whereby said canvas board having the freshly painted surface can be joined to said other board by a plurality of said devices at corresponding locations spaced around said boards.

8. A device according to claim 7, wherein said spacer member is elongated and has planar, mutually parallel end surfaces at opposite ends thereof, one of said end surfaces being secured to said flange portion and the other of said end surfaces being disposed in a plane perpendicular to the plane of said base.

9. A device according to claim 8, wherein said pin member extends outwardly from said other end surface of said spacer member and at a right angle to said other end surface.

10. A device according to claim 6, wherein the corner of each flange at one end of said clip member is bent outwardly to facilitate fitting said clip member onto the edge of said board.

Claims

1. A device for joining one canvas board having a freshly painted surface to another board in spaced, substantially parallel relation thereto and protecting the freshly painted surface, said device comprising: a a clip member adapted to be fitted over an edge of one of said boards so as to grip said one board adjacent the edge thereof, said clip member having a base portion disposed generally parallel to the edge of said one board and at least one flange extending from said base portion and along the surface of said one board when said clip member is fitted on the edge of said one board; b a spacer member on said flange of said clip member and disposed so as to extend in a direction away from and generally perpendicular to the plane of said one board when said clip member is fitted on the edge of said one board, said spacer member being elongated and having an outer end surface disposed in a plane substantially perpendicular to the plane of said base; and c a pin member extending out from said end surface of said spacer member in a direction away from and generally perpendicular to the plane of said one board and adapted to be driven into said other board so that said boards are spaced apart a distance substantially equal to the length of said spacer member; d whereby said canvas board having the freshly painted surface can be joined to said other board by a plurality of said devices at corresponding locations spaced around said boards.

3. A device for joining one canvas board having a freshly painteD surface to another board in spaced, substantially parallel relation thereto and protecting the freshly painted surface, said device comprising: a a clip member adapted to be fitted over an edge of one of said boards, said clip member comprising a channel member having a base and a pair of flange members extending from said base, the distance between said flange members measured adjacent said base being not less than the thickness of said canvas board measured at the peripheral edge thereof; b a spacer member mounted on said clip member and disposed so as to extend in a direction away from and generally perpendicular to the plane of said one board when said clip member is fitted on the edge of said one board, said spacer member being elongated and having planar, mutually parallel end surfaces at opposite ends thereof, one of said end surfaces being secured to one of said flange members and the other of said end surfaces being disposed in a plane perpendicular to the plane of said base; and c a pin member secured to and extending from said spacer member in a direction away from and generally perpendicular to the plane of said one board and adapted to be driven into said other board; d whereby said canvas board having the freshly painted surface can be joined to said other board by a plurality of said devices at corresponding locations spaced around said boards.

4. A device according to claim 3, wherein said pin member extends outwardly from said other end surface of said spacer member and at a right angle to said other end surface.

5. A device according to claim 2, wherein the corner of each flange at one end of said clip member is bent outwardly to facilitate fitting said clip member onto the edge of said board.

7. A device for joining one canvas board having a freshly painted surface to another board in spaced, substantially parallel relation thereto and protecting the freshly painted surface, said device comprising: a a clip member adapted to be fitted over an edge of one of said boards, said clip member comprising a channel member having a base and a pair of flange members extending from said base, the distance between said flange members measured adjacent said base being not less than the thickness of said canvas board measured at the peripheral edge thereof, each of said flange members being disposed so as to define with said base member an angle less than ninety degrees; b a spacer member mounted on said clip member and disposed so as to extend in a direction away from and generally perpendicular to the plane of said one board when said clip member is fitted on the edge of said one board; c one of said flange members being formed with a portion between the ends thereof disposed so as to define with said base member an angle of ninety degrees and said spacer member being secured to said flange portion; and d a pin member secured to and extending from said spacer member in a direction away from and generally perpendicular to the plane of said one board and adapted to be driven into said other board; e whereby said canvas board having the freshly painted surface can be joined to said other board by a plurality of said devices at corresponding locations spaced around said boards.