US358495A

US358495A - Wood veneering

Info

Publication number: US358495A
Authority: US
Publication date: 1887-03-01
Anticipated expiration: 1904-03-01

Description

KT TI IRWIN H. SPELMAN, OF CORTLAND, OHIO.

Wooo vsnesmne.

V SPECIFICATION forming part of Letters Patent No. 358,495, dated March 1,1887.

Application filed March 18', 1886.

To aZZ whom it may concern/.-

Be it known that I, IRWIN H. SPELMAN, a citizen of the United States, residing at Cortland, in the county of Trumbull and State of Ohio, have invented certain new and useful Improvements in Vood Veneering; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in wood veneering, and has for its object to pro duce veneering which will withstand ultimate changes of heat and cold and moisture and drying, and can be exposed in the open air to rain and sunshine and all the vicissitudes of the weather without becoming injured or i1npaired thereby.

It is Well known that wood shrinks and ex pands laterally, or across the grain, and not longitudinally, or with the grain. Therefore, if two pieces of wood are glued or cemented together crosswise, the expansion or contraction of either or both will necessarily break the cemented contact and loosen the parts thus united. I wholly overcome this objection. by running the grain in both pieces the same way, thus getting the swell and shrinkage in the same direction in both sheets, and employ the fibrous intermediate sheet to give strength and body to the article. In this manner I produce veneering which has many uses to which the crossed veneering could not be successfully or profitably applied, and make a product of very great value and utility in the arts.

Referring to the drawings, Figure 1 shows a plan view of a section of my improved veneering, with a part of the upper and the intermediate layers broken away in succession and disclosing the lower layer at the fractured end. Fig. 2 is a sectional side view of the same.

A represents the veneering in its entirety, and B, G, and D its respective layers or sheets. Each layer or sheet of wood may be made of any desired thickness-say one-sixth of an inch, greater or less-according to the use to which it is to be applied-and any suitable fibrous material--such as canvas, felting, or other woven cloth-employed to go between and take the cement by which the parts are held together.

Serial No.195,fi27. (No model.)

In some cases it may be desirable to make veneering of more than two layers of wood, in which case three or even four or more thick- 5 5 nesses may be used with corresponding layers of cloth; or it may be found sufiicient for some purposes to use heavy paper instead of cloth. Any fibrous material other than wood that will serve to bind the wooden sheets together and give them strength will answer the purpose. The process of manufacturing this article is the subject of a separate application.

I am aware that an English patent, No. 642

of 1881, has been issued in which the following clause appears: The grainof the inner and outer layers of the veneer constituting the walls is horizontal, so that the line of stitching .by which the bur-laps or heads are secured is liable to split the wood, to prevent which a 7c strip of veneer having a vertical grain is stitched or cemented to the outer edge of the walls, and in case the said strip is stitched to the body its lower edge is made curved or scalloped, so that the stitches, which are paral- 7 5 lel to the same, cross the grain of the package, and the splitting is prevented. I am also aware that a chair-bottom has been made and patented, May 5, 1874, No. 150,637, with two sheets of wood having the grain preferably parallel, and an intermediate sheet of raw-- hide, the parts being first prepared with glue and then perforated at brief intervals with eyelet-holes, into which eyelets are introduced and riveted for holding the parts firmly together, and completing the article for commerce and use. Neither of the finished articles constructed as described constitutes my invention, nor is adapted to the uses for which my improved veneer is designed.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s

A new article of manufacture consisting of veneer formed of two or more sheets of wood having the grain running in the same direc tion in all the sheets, and a fibrous fabric to which the sheets are secured by suitable adhesive material, substantially as set forth.

IPA/VIN II. SPELM'AN.