US52528A - Improved system of ventilating houses - Google Patents

Description

Uivrrnn Srarlns arnsir Oi-ricatkvB. J. BURNETT, OF MOUNT VERNON, vNEW YORK.

Specilication forming part of Letters Patent No. 52,525, dated February 13, 1866.

To all whom it may concern:

Beit known that I, BENAJAH J. BURNETT, ot' Mount Vernon, in the county of Westchester and State ot' New York, have invented certain new and useful Improvements in Ventilators; and I do hereby declare the following to be a full, clear, and exact description ot the same, reference being had to the annexed drawings, making` a part ot' this specification, in which- Figure l is a central vertical section, showing the construction and mode ot' applying the ventilator. Fig. 2 is a horizontal transverse section, showing the arrangement, with reference to each other, of the vertical air-conducting shafts. .f

This invention relates to ventilators to be applied to the roofs of houses or other structures, and more especially to those constructed on the plan which is the subject of the first clause ot the claim of my Letters Patent No. 45,814, dated January 10, 1865, and sincel improved by me, as fully set forth in an application for Letters Patent now pendin 0'.

The present improvement consists in certain novel means whereby a continual circulation tot' fresh air is more eftectually maintained throughout the dierent rooms and stories ot' a building.

To enable those skilled in the art to understand the manner ot' constructing and employing my invention, I will proceed to describe it v with reference to the drawings.

Extending upward from the ceiling of each story which it is designed to ventilate is a series of vertical air-shafts, the upper ends of which rise above the root', each series heilig' composed ot' four or more cylindrical shafts or pipes, B. rlhese shafts B are all inclosed within an upright trunk, A, which extends from the ceiling of the lower story to the roof of the building. Immediately over the top ot this trunk, and'above the upper ends of the air-shafts, is a suitable cap, which deects the cold external air downward through the windward air-shafts into the building, and permits the exit therefrom of the warm air through the leeward shafts, substantially on the same principle as set forth in my patent of January 10, 1865, hereinbefore mentioned.

Each series of air-shafts acts independently to ventilate a separate story. Thus from the ceives the cold air as it descends the windward pipes ot its series ot' air-shafts B, and distributesthesametotheroomsbelow through the pipes or passages h, which are placed in the ceilings E of the said rooms.

At vthe sides ot' the chamber C, between it and the sides ot trunk A, is a space, d, which communicates with the rooms below by the pipes or passages d', which are laid above or parallel with the ingress-pipes h. The space" between the top ot' the chamber O and the partition' formed by the ceiling above it forms another chamber, D. In the lower part ot' this chamber D are short pipes, b, one beneath Y each pipe ot' the set ot' air-shafts aforesaid. These short pipes open into the chamber O below, and have upon their upper' ends-three, more or less, conical detlectors, a, placed a short distance apart. The lower ends ot' the air-shafts B terminate in these conical deflectors in such a way that the cold air can pass directly downward through the windward pipes or shafts into the cold-air chamber C and its distributing-pipes 7L, and that the warm air rising through the passages d and space el into the chamber l) can pass through the spaces between the conical detlectors into the leeward shafts and make their escape into the outer atmosphere at the top thereof.

The cold outer air, heilig deflected into the Windward airshafts by the dellecting cap placed at the upper end ot' the same, passes downward through the said shafts and through their conical detlectors a int-o the cold air chamber C, from whichit passes through the pipes 7L into the rooms designed to be ventilated. This cold air, by its superior gravity, falls toward the iioor, thus displacing the warm air, which rises and enters the pipes d and passes upward through the space d into the chamber D, where, finding' no other Wal- Y ot'escape, it passes between 'the conical deiiectors (t ot' the leeWa-rd nir-shafts, and rises through the suid shafts until it escapes at the top, its ascent being assisted by :t draft produced by a. partial vacuum created at the top of the leew-rd air-shafts by the action of the. wind.

It will thus be seenthat by the use of this ventilator a continual circulation of air is produced within the building,` to which it is :Lpplied.

What I claim as new, and desire to secure by Letters Patent, is

1. The conical detlectors a, situated nt the lower ends of the vertical air-shafts B, substanf tially s set forth, for the purpose specified.

2. The cold-air chamber C, with its air-passages l1.. in combination with the vertical airshafts B, substantially as set forth, for the purpose specified.

3. The chamber D, inolosing the funnelshaped deflectors a, and arranged with reference to the vertical :tir-shafts B, space d, and air-passages d', substantially as set forth, for the purpose specified.

B. J. BURNETT.

Witnesses: l

J. W. CooMBs, G. W. REED.

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