US539471A - Chimney-cap - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.) l W. C-OOLEY.

CHIMNEY CAP.

No. 539,471. Patented May 21, 1895.

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(No Mode1.)' 2 sheets-sheet 2.

W. GooLBY. HIMNBY GAP.

No. 539,471. Patented May Z1, 1895.

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WILLIAM COOLEY, OF WATERBURY, VERMONT.

cHgnvlraar-CAP.-

SPECIFICATION forming part of Letters Patent No. 539,471, dated May 21, 1895.

Application fina nimm 189s. 'sans no. 457,531. oro man 'i To all whom it may concern:

Be it known that I, WILLIAM CooLEY, a citizen of the United States, residing at Waterbury,in the county of Washington and State of Vermont, have invented certain new and useful Improvements in Ohimneyaps; and I hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which ltappertainsto makeand use the same, reference being had to the accompanying drawings, forming a part ot' this specification'.

This invention relates to improvements in chimney caps for the protection of chimneys against the injurious effect of storms and weather, and has for its object to produce a cheap, simple, light and strong cap, made entirely from sheet metal.

The invention is carried out as follows, reference being had to the accompanying drawings, whereon- Figure 1 represents a plan of myimproved cap. Fig. 2 represents a bottom View of the same. Fig. 3 represents a horizontal section of the cap on a plane just below the roof of the same, showing the construction of the supports for the roof and the base portion of the cap. Fig. 4E represents a side elevation of the cap placed upon a chimney-top. Fig. 5 represents a diagram of the manner of cutting the metal to form the roof portion of the cap. Fig. 6 represents a perspective view ot one of the standards for supporting the roof of the cap upon the base of the same. g

Similar letters refer to similar parts wherever they occur on the drawings.

The base of the cap is formed by the pieces of sheet metal a, o', 0.2, a3, rolled into the desired cross sectional configuration as shown, mitered at the corners and there provided With the angular sheet metal binding strips CL4 a4 which are stamped into the desired shape and riveted to said pieces. The base is preferably made of such a size as to project a little beyond the side walls of the chimney upon which it is to be placed, so as to shed the water clear of said side walls.

At each corner of the base is placed one of the standards which supports the roof of the cap. These standards are each made of two pieces of sheet metal b b riveted together at o b2 and to the base at b5 b3 as shown. The

i pieces lfb are flared in opposite directions at .of sheetY metal cut in the shape as shown in Fig. 5. These pieces are each bent upon the lines c c in such a manner that the portion c of each piece will form a side and the portions o2 and c3 will each form one half of the ends of the roof.

The two pieces when riveted together along their edges c4 c4 will form a hipped root having but one joint extending from the center of each end to and along the ridge of the root'. This construction reduces the number and length of joints in the roof to a minimum.

The roof may, if -so desired be provided with a crest d as shown, flared at its lower part to cover the joint along the ridge of the roof, and I prefer to use such a crest as it increases the strength ot the cap and gives ita more ornamental appearance.

Achimney cap constructed from sheet metal as herein described is very light, and the manner of forming and arranging the joints in the cap make it very strong and rigid. Furthermore the mannerof constructing the supports for the roof from two pieces of sheet metal riveted together as described, enables me to use the small pieces of sheet metal which would otherwise go to waste, and makes said supports very strong and firm.

Chimney caps made of cast metal are very liable to become cracked in cold weather by the uneven expansion of the dierent parts caused by the heat of the chimney coming into contact with one portion andoexpanding it4 IOO the roof-portion, the base -portioniformed of the sections a, a', a2 and a3 mitered at the corners, and the binding pieces a4 a4 to join said sections together as described, of supports for the roof portion riveted to the root', being formed of two pieces of sheet metal b b fastened together by rivets, and ared at their lower edges so as to embrace the two abutting sections of the base forming the` corner, being riveted to the same at both sides of the joint to strengthen the joint at the corner of the base as Well as to forma rigid sup` port for the roof of thecap, as setforth.

2. In a chimney cap, the roof portion formed of two pieces of sheet metal, cut and bent into WM. COOLEY,

`Witnesses:

0. E. SCOTT,

E. E. TRACY.

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