US773207A - Bracket. - Google Patents

Description

No. 773,207. PATENTED 001". 25, 1904@ 0. B. KAISER. BRACKET.

APPLICATION FILED MAR. 25, 1904. N0 MODEL.

STATES UN ITE Patented October 25, 1904.

OLIVER B. KAISER, OF NORIVOOD, OHIO, ASSIGNOR TO THE TUDOR BOILER MANUFACTURING COMPANY, OF CINCINNATI, OHIO, A

CORPORATION.

BRACKET.

SPECIFICATION forming part of Letters Patent No. 773,207, dated October 25, 1904,

Application filed March 25, 1904:.

To (all 21/71/0712, it may concern:

Be it known that I, OLIvnR B. KA SER, a citizen of the United States, residing at Norwood, in the county of Hamilton and-State of Ohio, have invented certain new and useful Improvements in Brackets, of which the following is a specification.

My invention relates to a bracket and, as shown, preferably adapted for boilers.

The object of my invention is to make a light and eflicient bracket.

The features of my invention are more fully set forth in the description of the accompanying drawings, forming a part of this specification, in which- Figure 1 is a plan view of the blank in which the bracket is made. Fig. 2 is a side elevation of the completed blank. Fig. 3 is a section on line a- 1', Fig. 2. Fig. 4c is an end elevation of the bracket. Fig. 5 is a perspective View of the bracket.

The bracket herein shown is struck up from a ductile piece, usually of a soft steel. In the center portion thereof is a reversed-curve arch, forming a strengthening central arch brace. The arch is preferably made' much higher in the center and gradually receding toward the respective ends of the bracket.

B represents the foot end of the bracket, which is supported on the wall of the furnace.

A represents the overhanging supportingarm.

C represents the hollow arched brace.

I) represents plane marginal faces upon each side of the arched brace and forming the abutments, which rest against the wall on the foot portion and support the boiler on the armsection.

(1 represents holes-pierced in the flanges D for riveting the arms of the bracket to the boiler.

E represents the blank from which the Serial No. 199,916. (No model.)

bracket is struck, having the outwardly-tapering portions 6 b on the sides and the segmental ends 0 c. The brace C, being struck up from the middle portion of the blank and bent into the knee form, together with the plane flange B, extending beyond and below the foot of the brace C, materially strengthens the bracket and prevents any tendency of opening out the metal which forms the corrugated or U-shaped brace.

The method of construction is preferably as follows: Dies are formed having their opposite faces in plan of the same configuration as the limbs of the bracket, with the rim upon the convex die of the desired shape of the arch brace and to correspond with the formed groove in the opposite die sufliciently larger in cross-section than the rib on the opposite die to take up the metal upset and forming the arched brace. The holes a are preferably punched or drilled after the bracket is made.

The bracket herein shown and described is very strong and durable. The arch form of the brace, in the central portions thereof, makes the bracket very rigid, although formed of comparatively thin metal.

Having described my invention, 1 claim A boiler-bracket formed integral from a metal blank, said blank having the outwardlyeXtended diagonal sides, and inwardly-curved ends, the middle portion of said blank being struck up andforming an open knee-brace and terminating at the ends with plane faces, and with faces on each side of said brace bent to form a knee-bracket, substantially as described.

In testimony whereof I have hereunto set my hand.

OLIVER B. KAISER.

WVitnesses:

LUISE BECK,

LEO ODoNNnLL.

Images