US1476939A - Bar chair - Google Patents

Description

till) Patented Dec. 11, 1923..

UNITED STATES WILLIAM E. WHITE, OF CHICAGO, ILLINOIS.

\ i BAR CHAIR.

4pp1ication filed June 12, 1922. Serial No. 567,849.

To all whom it may concern:

Be it knoyvn that I, WILLIAM E. WHITE, a citizen of the United States, and resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in a Bar Chair, of which the following is a specification.

My invention relates to supporting de vices for concrete bars and particularly to an improved chair having desirable features not found in chairs heretofore suggested.

' One of the objects of my invention is to provide a supporting chair,the manufacture of which is greatly simplified. It is so constructed that the three parts which form the chair and the seat or pocket for the bar are united in a single welding operation. This simplifies the matter of manufacture and reduces its cost. One of the most important advantages in the construction pro posed is that ofutilizing duplicate machinemade wire. parts so constructed that the same parts may be combined to provide a bar seat of varying widths. Thus a chair to conform to varyin specifications may be built by the use of t ree standard parts.

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of bars.

The invention has other functional advantages such as stability and rigidity and these, together with the lack of necessity for tying devices, serve to place the chair in a distinctive class.

The invention will be more readily understood by reference to the accompanying drawings, wherein,

Fig. 1 is a perspective view showing a chair of my invention associated with a section of a reinforcing chair;

Fig. 2 is a similar view of a chair and,

Fig. 3 is a plan view showing the use of the chair at the intersection of a pair In the drawings it will be seen that the device of my invention consists of three parts, A, B and C. Parts A and B are duplicate and are formed of wire in an automatic machine." Each includes an inclined portion 10, which functions as a leg, a vertical portion or post 11, which forms a side member-10f the bar seat, and an intermediate substantially horizontal connecting portion'12. When combined in opposed re-' lations as shown,'it will be seen that they form two U-shaped structures,-the parts 12 being placed side by side in parallelism. 1110 complete the structure I p ovide the part C, which is of U-shape, an consists of legs 13,

which may or may not'have feet 14:, and an intermediate horizontal connecting part'15. lVhen associated the vertical plane of the U-shaped member C is arranged at right angles to the vertical portions of the parts A and B.

The three parts heretofore described are joined in the relation shown by a single welding operation at the intersection of the horizontal'parts 12, 15. The two parts 12 need not be directly welded together except as an incident to the welding operation in which those parts are joined to the horizontal part 15. One of the important advantages in the construction described is in that the welding operation takes place at a point removed from any bend in the wire. Such bends are usually made on rather a short radius and the metal" at that point is more or less crystallized and weakened. A weld at that point has the eflect of still further weakening the structure. In the device here suggested the single welding operation takes place at a point removed from any bend in the wire.

It will be seen that a particular 1nanufac-- turing advantage is in that all the parts I may be constructed of standard form and that differences in spacing of the parts 11 are Elti secured in the operation of welding the final structure having all the. requisite strength and stability notwithstandin variations in the spacing of the arts A an B. Furthermore the chair will operate efficiently without the use of tie wires for holding the bars in place. This reduces the cost not only of manufacture but of installation.

In the construction of Fig. 1 a. bar 16 is shown in position between the posts of the chair. In Fig. 3 the same chair is utilized to accommodate crossed bars 17, 18, the chair being angularly shifted to permit of such use.

Obviously the construction is capable of considerable modification and I do not wish to be limited except as indicated in the appended claims.

I claim: p

l. A bar chair composed of three members, two of said members being duplicates and consisting of a-leg, a post and a horizontal members being joined at their intersection. parts each having a leg, a post and a horizon- 2. A bar chair including a pair of duplital connecting member, said duplicate parts cate parts each having a leg, a post and a being associated with their connecting memhorizontal connecting member, said duplicate bers in side by side relation and with their 5 parts being associated with their connecting legs and posts on opposite sides thereby members in side by side relation and with forming an H structure and a 'U-shaped theirlegs and posts on ofiposite sides thereby member arranged with its veritcal plane at forming two opposed shaped structures, right angles to the vertical plane of said and a U-shaped stabilizing structure ar- H structures, the three separate parts con- 10 ranged .at right angles to said first-mentioned stituting the two structures being joined by structures, all said parts being joined at their a single welding operation at the junction intersection. of their horizontal parts.

3. A bar chair including a pair of dupli- 5. A bar chair including in coinl ination,

cate parts each having a leg, a post and a a pair of complen'ientary wire shapes joined l5 horizontal connecting member, said duplicate at an intermediate point to provide parallel parts being associated with their connecting opposed U-shaped structures, and :1 second members" in side by side relation and with U-shaped member located at right angles their legs and posts on opposite sides thereby to first mentioned Ushaped structures and forming an H structure, and a Ushaped secured to the base members of said struc- 20 stabilizing structure arranged at right angles tures at a point intermediate the ends of to said H structure, said two structures being said base members.

joined by Welding at the intersection of their 7 Signed at Chicago, Illinois, this (3th day horizontal parts. of June, 1922. I

4. Abar chair including a pair of duplicate WILLIAM E. WHITE.

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