US296336A

US296336A - Sigmund kohjtf

Info

Publication number: US296336A
Authority: US
Publication date: 1884-04-08
Anticipated expiration: 1901-04-08

Description

(No Model.)

- S. KOEN.

GHAIR LEGFASTENER. Nm 296,336. Patented Apr. a, 1884;

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muy N Mq e NrrEn STATES PATENT EEICE.-

SIGMUND KOHN, OF VIENNA, AUSTRIA-HUNGARY, ASSIGNOB TO THE FIRM OF JACOB St JOSEF KOHN, OF SAME PLACE.

CHAIR-LEG FASTENER.

SPECIFICATION forming part of Letters Patent No. 296.336, dated April 8, 1884.

Application led October E29, 1883. (No model.)

Be it known that I, SIGMUND Kenn, eresident of the city of Vienna, Austria-Hungary, have invented a Chair-Leg Fastener, of which the following is afull, clear, and exact description, reference being made to the accompanying drawings, in whichm Figure l is a perspective view of a chair bottom and leg connected by my improved fastener. Fig. 2 is a vertical central section of my improved fastener. Fig. 3 is a perspective view ofthe same. Fig. 4 is a vertical section at right angles to Fig. 2.

' This invention relates to a new means for connecting chair-legs to the chairbottoms,

and for likewise connecting other articles of furniture. i

The invention involves the employment of a screw and nut, the screw being secured in 2o the leg and the nut in the chair bottom or plate. Such connections havebeen employed before my present invention; but the objection to them has been that the screw, in being secured into the leg in which the grain of the 25 wood was running longitudinally, was liable to split the wood, and from this cause the metallic connections, which otherwise would be very desirable, have failed to become established in the market.

My invention consistsjn employing, kin connection with the screw, a sheet-metal cap, which enters with its vertical sides into the wood of the chair-leg, and prevents it from being split by the screw that is afterward introduced.

In the drawings, the letter A represents a chair-leg, and the letter B the seat or bottom to which the said Vleg is to be attached; or the parts A B may be assumed to represent other 4o portions of the articles of furniture requiring analogous means oi' connection.

C is a screw, and D a nut, by which the parts A B are to be joined. The screw Chas its lower portion threaded, so that it will be adapted to be secured in the wood of the leg A. lts upper portion, however, is threaded,

so aste iit it into the nut D. Between these different threads the screw C has a shoulder, a, for the reception of which the upper end 5o of the leg A is hollowed out; or instead of this the lower face of the part B may be holof the article of furniture which contains it.

lowed out to receive this shoulder a wholly or in part.

E isa sheet-metal cap-that is to say, an inverted sheet-metal cup-which is inserted in the upper part ofthe chair-leg A, so that its vertical wall will enter into the wood, as is clearly indicated in Fig. 2, and will surround in that position the upper portion of the screwr O, that enters the wood of the chair-leg A. 6o The shoulder a on the screw is by preference angular or dat, so that it may be taken hold of by a wrench. In practice I prefer to ream out of the upper end of the chair-leg A the cavity which is to receive the shoulder a, and to make that cavity large enough to allow the sheet-metal cap E to be inserted and forced home, so that it will rest on the bottom ot' said cavity, as indicated. l may even cut an annular recess into the chair-leg for the more convenient insertion of the vertical walls of the cup E. Vhen this cup has been wholly or partly fitted to its place, the screw C is se- 'cured in the cha-inleg until its shoulder bears 8o The nut D is fitted into a cavity prepared for its reception in the seat B, so that the chairleg having the protruding portion of the screw C may be conveniently attached.

Fig. 4 shows the transverse cavity or recess made for the insertion of the nut D, which, when the nut is in place, is closed again by a plug, b.

I claiml. The combination of the screwC, having shoulder a, with the hollow cap E and nut D, substantially as herein shown and described.

2. The combination of the wooden chairleg A, which is recessed at its upper end, with the hollow cap E, screw C, having shoulder a, 95 and with the nut D and seat B, substantially as herein shown and described.

SIGM. KOHN.

Witnesses;

@nannies G. M. Tetonas, Gus/rnv Scanners.