GB2427166A

GB2427166A - Picture frame assembly template

Info

Publication number: GB2427166A
Application number: GB0601430A
Authority: GB
Inventors: Philip Clive Almond
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-06-18
Filing date: 2006-01-25
Publication date: 2006-12-20
Anticipated expiration: 2026-01-25
Also published as: GB2427165A; GB0601430D0; GB0512497D0; GB2427166B

Abstract

A picture frame assembly template comprises a grid of elongate elements (U and elements perpendicular thereto) with dovetail slots V cut therein. Guide rails C are slideably mounted on slots V via complementary dovetailed blocks (A), threaded studs and wing nuts (B). Tightening wing nut (B) wedges block (A) into slot V and locks the guide rail in place. Appropriate positioning of guide rails C on the underlying support grid allows a range of different frame sizes to be assembled on a single template.

Description

Picture Frame Assembly Template This invention relates to a device for

holding picture frames in position whilst the glue on the mitre joints is setting.

When picture frames are being glued together, corner mitre clamps are normally used.

However, the use of conventional mitre clamps can lead to a number of difficulties.

They do not allow for easy fine adjustment of the mitred corners, and for wider picture frames, more than one set of mitre clamps may be required.

To overcome these problems the present invention proposes a template with the means of locating sliding units to be adjusted and hold down a frame location rail by means of a wing nut.

The sliding units are dovetailed at their base and will fit and slide in dovetail slots located in the template. At the top of the dovetail units will be a male threaded stud.

The frame location rails will have elongated slots to pass over the threaded studs and be held in place by means of wing nuts.

The template can be of any size to accommodate the overall dimensions of the picture frames to be made up.

The invention will now be described solely by way of example and with reference to the accompanying drawings in which: Figure 1 - shows the template feature 1, with the dovetailed shaped slots located in the top surface, feature A. Figure 2 - shows the dovetailed sliding units with the threaded stud and holding down wing nut, feature B. Figure 3 - shows the arrangement of the frame location rails, feature C, with elongated slots, feature G and wing nuts feature B. In figure 1, the complete template feature T, is made up of eight units. Four of them run in one direction with a continuous dovetailed shaped slot, feature A, all four being of the same length and pattern, feature U. The other four run at right angles to feature U, with a dovetailed shaped slot, feature A, interrupted at the points of intersection, all four being of the same length and pattern, feature V. The complete template, feature T, with its dovetailed shaped slots, feature A, running at right angles in both directions, provide the facility to frame up pictures of a varying size.

,ounter sunk screw holes can be provided at the intersections for holding down the template to a bench or table, feature E. The top surface of the template can be coloured with lines marked out at 10mm centres to assist with squareness of the picture frames, feature F. The dovetailed sliding units in Figure 2 fit into the dovetailed slots, feature A, in the template, features U and V. The threaded stud projecting out of the top of the dovetail slide, feature B, will be high enough to take the frame location rail, feature C, and the wing nut, feature B. The frame location rails in Figure 3, feature C, are provided with elongated slots, feature G. The slots will allow adjustment in the direction of the dovetail slots, feature A, and also at right angles to the slots. Once in place, the wing nuts can be tightened to hold the frame location rails in position.

The tightening of the wing nuts against the frame location rails will bring the dovetailed slides up against the dovetailed slots in the template, thus providing a firm fixing.

The frame location rails are positioned within the full length of each rail at one end in order round the template. This will allow full adjustment of the rails and permit the accommodation of various picture frame sizes. i ms

Claims

1. A picture frame assembly template, together with the dovetail slides

and frame location rails and wing nuts, will provide the facility to accommodate frames of various overall sizes and frame sections of any width and depth.

2. Once the picture frame mitres have been cut according to claim 1, the picture frames can be assembled on the template and held in place with the frame location rails.

3. A picture frame assembly template according to claim 2, with the wing nuts tightened, will hold the frame location rails firmly in place.

4. A picture frame assembly template according to claim 3, with the frame location rails firmly in place, will provide the opportunity for both diagonal and parallel dimensions of the assembled picture frame to be checked and the frame's squareness also checked.

5. A picture frame assembly template, according to claim 4, will, with the picture frame held in place, reveal any adjustments to the picture frame mitres that may be required.

6. Once the picture frame assembly is satisfactory according to claim 5, glue can be added to the mitre joints of the picture frames, then placed finally in the picture frame assembly template and left in place for the glue to set.

7. Once the glue has set, according to claim 6, the wing nuts can be unscrewed, the frame location rails removed, leaving the completed picture frame.