US1026395A - Method of making bulge-panels for furniture. - Google Patents

Description

J. HERZ'OG.

METHOD OF MAKING BULGE PANELS FOR FURNITURE.

APPLICATION FILED SEPT.19, 1911.

Patented May 14, 1912.

11;; 9 fi a WITNESSES:

INVENTOR ATTORNEY UNITED OFFICE.

JOHN HERZOG', 0F SAGINAW, MICHIGAN.

METHOD OF MAKING BULGE-PANELS FOR FURNITURE.

To all whom it may concern Be it known that I, JOHN I-Innzoc, a citizen of the United States, residing at Saginaw, in the county of Saginaw and State of Michigan, have invented certain new and useful Improvements in Methods of Making Bulge-Panels for Furniture; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention is a method of making bulge panels and pertains more particularly to a method of making a veneered furniture panel, the surface of which is neither fiat nor curved in one direction, as is now common, but on the contrary is curved in all directions so that the finished surface presents a bulged or raised middle part that presents a warped surface in all directions.

The attainment of certain artistic effects in furniture can be produced only by the bulging of the panels, so as to present either a single raised portion, or if desired, a plurality of raised portions on the surface of the panel. Various methods of producing such bulged panels havebeen devised heretofore, but have proven defective because of the liability of the panel to warp or split, and because of the tendency of the outer layer of veneer to check and crack.

It is to be understood that bulge panels to be commercially successful must be as capable of resisting any tendency to Warp and check as in any ordinary flat panel.

By my improved method which will be described in the specification, I am enabled to produce a bulge panel of any desired design that is comparatively inexpensive to manufacture, that will not warp or check under any ordinary changes of temperature or weather conditions to which furniture is usually subjected, and in which there is no more tendency for the veneer to check or separate from the core or backing than there is for veneer to separate from a flat surface.

With these and certain other objects in view which will appear later in the specification, my improved method will now be described, reference being had to the accompanying drawings which show for purpose of illustration a panel having a single oblong bulge. It will be understood, however, that my method is adaptable to panels Specification of Letters Patent.

Application filed September 19, 1911.

Patented May 14, 1912.

Serial No. 650,136.

having various forms of bulges, and that a single panel may contain more than one bulge if desired.

In the drawings, Figure 1 is a top plan view of a board from which the panel strips are cut; Fig. 2 is an end view of the same board; Fig. 3 is a top plan view of a panel core formed by assembling the strips shown in Fig. 1, the top surface of the core being dressed down to approximately the form of the bulge; Fig. 4 is a view of one end of the panel shown in Fig. 3; Fig. 5 an end view of the opposite end of the panel; Fig. 6 is a top plan view to a reduced scale, of the shaped veneer; Fig. 7 is a longitudinal section 011 the line 00-m of Fig. 6; Fig. 8 is a transverse section on the line y z of Fig. 6, showing the ends of the adjacent pieces of veneer overlapped; and Fig. 9 is a similar section showing the ends butted.

In following my improved method, I first build up a core or shell of approximately the shape of the completed bulge panel, then dress the surface of the core by cutting away the material until the final contour is attained. To the surface of the core thus formed I apply a shell of veneer, the shell having previously been formed to conform approximately to the shape of the completed bulge, so that the veneer shell of itself presents approximately the bulge form of the completed panel. The purpose of shaping the veneer before applying it to the core is to insure that all shrinkage strains and all tendency to warp is eliminated from the veneer before it is finally put in place on the core. To prevent the core itself from warping out of shape or checking, I also eliminate from it all tendency to shrink or distort and I accomplish this result by the method which I employ in building up the core.

To illustrate my method in detail, reference may be had to the drawings, where 1 to 5 represent the strips from which the core is built up, the strips being preferably sawed to templet from a flat board 6, as indicated in Figs. 1 and 2. The strips are then assembled side to side, as indicated in Figs. 3, 4 and 5 and are glued or otherwise secured together to form the core. The shape of the successive strips 1 to 5 depends upon the shape of the desired bulge and when the strips are assembled the core presents a stepped outer surface of irregular shape. I then remove by cutting, either by hand or with a suitable automatic machine, the surplus material from the outer surface of the core, and if an interior depression is desired, I also remove the surplus material from the inside of the core so that successive transverse sections through the core would present irregular shapes, as indicated by dotted lines at 7, 8, 9 and 10 in Figs. 3 and 4. It will be noticed that by first shaping the strips, then gluing them together side to side, and then removing the surplus material from the outside or inside or both, no tendency to check or warp is introduced into the panel as would be the case if any method of steaming and stretching were employed. I also prepare the veneered shell after the manner illustrated in Figs. 6 and 9. This veneered shell is prepared in the following manner: A sheet of veneer of a size suitable to cover one-half of the completed panel is shaped over a suitable form (not shown) by the common methods of pressing and heating, which are now generally employed for shaping veneer. I then similarly shape a piece of veneer to cover the other half of the panel, then place the two pieces 11 and 12 together with their edges overlapping, as indicated at 18. I then sever the overlapped edges by passing a knife lengthwise the two sheets, and then butt the two edges, as indicated at 14 in Fig. 9. I then bind the two veneer pieces together by strips of cloth 15 glued to them. The veneer shell so formed is practically free from tendency to warp or shrink and will maintain its bulged form with a very small amount of tendency to distortion, even though it be not mounted on a core. The veneer shell is then applied to the surface of the core by gluing or any other suitable means. After the veneer is applied it is polished in the usual manner.

By the method above described; I am enabled to produce bulge panels of any de sired contour and of great strength, having.

ond, gluing said strips together side by side.

to form a stepped core of irregular surface contour; third, removing the surplus material from the face of the core; fourth, preparing two warped sheets of veneer, each of approximately the contour of half the bulge panel; fifth, fitting the ends of said pieces of veneer togetherto form a veneer shell of approximately the contour of the face of said core; and sixth, gluing said veneer shell to the face of said core.

2. The herein described method of producing bulge panels, consisting in first producing a plurality of shaped strips; second, fastening said strips together side by side to form a core of irregular surface contour; 3rd, removing the surplus material from the face of the core; ith, preparing a bulged sheet of veneer of approximately the contour of the bulge panel; 5th, securing said bulged sheet of veneer to the face of said core.

In testimony whereof, I affix my signature in presence of two witnesses.

JOHN HERZOG.

Witnesses CHRISTINE A. BRAIDEL,

Gno. W. SMITH.

Copies of this patent may be obtained for five cents each, by addressing the Washington, D. c."

Commissioner of Patents,

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