US1767099A - Bracket - Google Patents

Description

June 24, 1930. c. E. STEVENS 1,757,099,

BRACKET Filed March 30, 1928 Patented June 24, 1930 v ni'rEnjsrATss PAT ENT;Q' I

CLARENCE E. srnvnns, F CLEVELAND, oHIo, ASSIGNOR 'ro wnrrn SEWING MACHINE CORPORATION, or CLEVELAND; crime CORPORATION or DELAWARE.

Application fi1edfMareh 30f192 8. seriaino. "265,850.. l

This invention relates to a metal bracket and the method of forming the same. It.

has particular utility in the manufacture of bracket posts used for connecting the backs of certain types of chairs to the seats thereof as, for example, chairs commonly used in school rooms, although itshould'be under stood that it isnot limited alone'to this use.

An object of the invention istoprovide 1 a bracket for use as a seat post in connecting the backs of chairs to the seats thereof which is so formed as to provide a properly positioned back rest for the occupant of the seat.

Another object isto provide" a 'metal bracketof rigid construction which is easily attached in is applied.

Another object is to provide a metal bracket which'may be economically manu- 2o factured.

Other objects and advantages will become v apparent as the description proceeds 1 g An' embodiment of the invention is illustrated in the accompanying drawing, wherein- K i Fig. 1 is a side elevation of theseat and back portion of a school 'room' chair,- the bracket being used to connect such portions; Fig. 2 is a front elevation ofth'eseat and back of the chair, aportion of the seat being broken away and shownin' section;

Fig. 3 'is' a detailed view of the bracket;

and, V Figs. 4, '5 and 6 are sectionalviews taken on lines 4-4, 55 and6,6, "respectively, of Fig. 3 and looking in the directionof the arrows. i i

IIeretofoi'e in the manufacture ofg brack ets of this character it has been customaryto which practice has resulted in considerable waste of material as there is always a large part of the blank which can not be used; In constructing the bracketsaccordmg to the more-economical" production of the brackets by forming the same fromstrip stock; In

carrying thisout the strips of stock arefirst position onthe parts to which stamp the same from" sheet metal jblanksj,

present invention, it is contemplated to eliminate this waste of material and to effect a cut into proper lengths to form the brackets hand brackets.

and at the: same time a number of holes 10 are punched inthe bars to be used for the passage of suitable securing means, such as wood screws. In'punching theholes an annular bead 11 is formed on the outer side of the bracket, the inwardly extending leg of which tapers inwardly as shown at 12 to form a countersunk recess for the reception of the screw head. -=It"should be noted that the tapering'portion of the opening terminates in theplane of the inner side of-the I bracket,whereby the seat and back elements .may'lie fiushagainst the bracket;

After the bar" has been cut to length and 1 the holes punched, a forming operation is utilized for providing asubstantially per pendicular flange 13 onone edge thereof ex- 'will extend partly along the. arm 16 and V partly along-the arm-17,I-s0 as to-include the angularconnection' between the arms.

s0- In order to strengthen the'bracket an an-. gle member 18 is'welded or otherwise secured to the flange 13 at'the junction of the two arms and isso formed that the part thereof which engages the angle ofthebracket will 3 beconsiderably wider than eitherof its op p0si-te1- ,ends, while the upperiedge of the angle member is bent upon itself, as shown at j19',in Fig.5, to'form a'strengthening head the lower end of which'is' flanged in- I wardly at 20, as shown in Fig. 6, for a pur- -pose later to be described. The --flange 20 is merely a continuation of'the portion 19 and is formed by'twisting: such portion outwar'dly at-anapproximate right "angle to the'main body of'the anglemember. Y

" When the bracket'isused to connect the back and the seat of a school chair, it'is, ofjcourse, necessary to employ right andleft The arm of the bracket tion.

which is attached to the offset portion 14 of the upper end of the arm, while the other is attached beneath such portion of the arm at a point slightly above the upper end of the rib or. bead 15.-

These slat-shave their ends in engagement with the flanges 13 and are curved as shown at 24 in Fig. 1 so as to comfortably accommodate the back of the occupant of the chair, while the base of the arm lfi is bent or offset at 25 to enable the lower slat 23 to properly fit within the bracket and to lie flush against the base thereof. As already mentioned, in securing the brackets to the seat and back suitable means, such as wood screws, are passed through the openings 10. Because of the offset portion 14L at the upper end of the arm 16 the seat back will have a conformation properly arranged to receive the back of the occupant of the-chair when sitting in a natural and comfortable posi- Ordinarily chairs of this character are provided with backs which extend substantially straight upwardly or at a slight angle, instead of having portions of the seat back itself angularly disposed with respect to each other. I T

Although a preferred embodiment of the invention has been illustrated and described, it should be understood'that the same is not limited thereto except in so far. asthe scope of the following claims so limits it.

-Having thus described my invention, what Iclaimis:

1. A bracket-adapted tobe used a post" for connecting the seat and back of a chair comprisinga metal strip flanged along one edge and angularly bent intermediate its ends so as toform angularly disposed arms each having a base portion and a flange portion, astrengthening rib formed in said strip and adapted to include the angle between the arms, one of said arms having an end angularly offset with respect to the remain ing portion thereof, said arm also having a part of its base portion'offset with-respect to theremaining part thereof, and/a strengthening angle member secured to the flange, at the junction of the two arms of-the bracket. l i r I :1 2. A bracket adapted to be used as a post for connectingthe seat and back of a chair comprising a metal stripv flanged'along one longitudinaliedge thereof and angularly bent intermediate its ends so as to form angularly disposed chair seat and chair back receiving arms, respectively, each having a base portion and a flange portion, said chair back receiving arm having its upper end rearwardly offset whereby the configuration of the back of the chair will provide a properly positioned back rest for the occupant thereof, said last named arm having a part of its base portion offset'with respect-to the remaining part thereof.

3. A bracket adapted to be used as a post for connecting the seat and back of a chair compr sing a metal strip flanged along one for the occupant thereof.

4. A bracket adapted to be used as a post for connecting the seat and back of a chair comprising a metal strip flanged along one longitudinal edge thereof and angularly bent intermediate its ends so as to form angularly disposed chair seat and chair back receiving arms respectively, each having a base portion and a flanged portion, a strengthening rib. formed in the base portions of said strip and adapted to include the angle between the arms, a strengthening angle member secured to the flange portions of said arms at't'he junction thereof and having a flange adapted to engage the upper side of the seat, said chair back receiving arm having a part of its base portion offset with respect .to the remaining part thereof, and said last named arm also having its upper end rearwardly offset whereby the configuration of the back of the chair will provide a properly positioned back rest for the occupant thereof. 7

A bracket adapted to be used as a post for connecting the seat and back of a chair comprising a metal strip flanged along one longitudinalv edge thereof and angularly bent intermediate its ends so as to --form angularly disposed chair seat and chair back receiving arms respectively, and a strengtheningangle member secured. tothe strip at the junction of the arms and having a flange adapted to engagethe upper side ofthe seat. In testimony signature.

i f CLARENCE nsrnviins.

whereof, I hereunto aflix my

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