US 586276 A
Description (OCR text may contain errors)
. P. SBELINGER.
Patented July 13, 1897.
M' C. MMM.
UNITED STATES PATENT OFFICE.
PHILIPP SEELINGER, OF LAMBRECHT, GERMANY.
SPECIFICATION forming part of Letters Patent N 0. 586,276, dated July 13, '1897.
Application led June 29, 1896. Serial No. 597,281. (No model.) Patented in Germany February l2, 1895, No. 82,667.
To @ZZ 'whom t 7uur] concern:
Be it known that I, PHILIP? SEELINGEE, a citizen of Germany, residing at Lambrecht, in the Pfalz, Germany, have invented certain new and useful Improvements in Joinery, (patented in Germany February l2, 1895, No.
82,667 g) and I do hereby declare the followdistortion of planks and plates of wood inl general. For this purpose cross-clamps and the like have been hitherto employed; but their use involves various objectionable features, the removal of which is also among the purposes of this invention.
XV ith these objects in view my invention consists in the features, improvements, and combinations of parts hereinafter to be described with reference to the accompanying drawings and then pointed out in the claims.
In the accompanying drawings, Figure l represents a front elevation, Fig. 2 a side elevation, and Fig. 3 a longitudinal vertical section, of a chair embodying my invention,while Figs. 4 to 6 represent detail views of the same. Figs. 7, S, and 9 represent modifications.
My invention may be described as follows: Into suitable mortises or recesses of the plate or board of wood u., which may be a chairseat, table-top, or the like, are inserted two or more solid or hollow rods or bars c, of metal, preferably iron, having any desired cross-section. The number of metal rods or bars is governed by the length of the article of furniture, and the rods or bars are of such a length that there is some play in longitudinal direction, (see Fig. 4,) so that the board on drying will not be prevented from contracting by the metal bar or rod c. These metal bars or rods prevent the warping or swelling of the wood plate, boards, dac., while at the same time strengthening them. In the case of chairs,
benches, tables, and the like these metal brace bars or rods will also serve for the fastening of the strips Vor ledges placed upon the boards or plates and also for securing the legs, as shown in the example represented in the drawings. The ledges or cross-bars b are in this case rigidly'connected with the metal brace bar or rod c, and hence with the seat tt of the chair, by means of hook-screws d in such a manner that several hook-screws d are hooked over the brace bar or rod c with their hooked ends, the number of hooks being governed bythe size of the piece of furniture infquestion. In' the example shown the screw-hooks d are arranged in pairs and inclin ed in opposite directions, (one'to the right and the other to the left,) and hence pass obliquely through the cross-piece or ledge b and through a protecting metal plate f,which covers the lower surface of it, the hook-screws being held in place by nuts eengaging their threaded ends and bearing against the protecting-plate f. By this arrangement the ledges or cross-pieces b and the seat a. are caused to form one rigid piece, so that when the wooden portions are properly arranged with regard to the grain and in other respects all liability of warping will be successfully prevented, while at the same time the seat is permitted to expand or contract under the influence of moisture, heat, dac. The ledges b are made a little shorter than the width of the seat, so that the same shall not project below the same after the seat has dried and contracted. The hook-screws d and the protecting-plates f are arranged obliquely with regard to the ledges in order to strengthen the latter and to guard them against splitting. Ilehe ledges or cross-bars b at the same time serve for the attachment of the legs in the ordinary manner-viz. by wedging them into conical holes or mortises in the ledges-with this difference, that under my invention they do not pass through the seat, but only through the ledges, and hence are rmly clamped and held between the seat and the ledges. In case of repair they are readily removed by unscrewing the nuts e.
In order to be enabled to utilize the hereinbefore-described connection of the ledges b with the plates or boards ft in another manner, I have devised the construction shown IOO in Figs. 7, 8, and 9 in vertical, longitudinal,
and transverse sections and bottom plan view. In this case the nut fi, provided with two threads, is secured movably to brace-rod c, the screws e' being passed through the ledges b and screwed into the nuts z', thereby providing a convenient and secure Inode of fastening the ledge or cross-piece Z9 to the board or plate ct.
Instead of the two screws e', arranged as shown, the fastening may be carried out by a single screw e2, in which case the nut t' needs to be provided with only one interior thread.
That I claim, and desire to secure by Letters Patent, is-
l. In articles comprising Wooden boards, such boards provided with a rec-ess in combination with a metal brace rod or bar arranged in the recess, a ledge arranged on the surface of the board and means for connecting the ledge to the brace rod or bar, substantially as set forth.
2. In articles comprising wooden boards or plates, such a board provided with a recess, and a metal brace rod or bar arranged in such recess, in combination with a ledge and hookscrews hooked over the brace rod or bar, passing through the ledges and secured. at their ends, substantially as setl forth.
3. In articles comprising wooden boards or plates, such a board provided with a recess, and a metal brace rod or bar arranged in such recess, in combination with a ledge, hookscreWs hooked over the brace rod or bar and passing through the ledge, a protecting-plate on the bottom of the ledge, and nuts for securing the lower ends of the hook-screws.
4. In articles comprising wooden boards or plates, such a board provided with a recess, and a metal brace-rod arranged in the recess, in combination with ledges provided with conical holes, legs engaging said conical holes in the ledges and bearing against the board, and means for connecting the brace-rods to the ledges, substantially as set forth.
In testimony whereof I aix my signature in presence of two witnesses.
Titnesses HEINRICH KUMPF, FERDINAND NAUMBURG.