US100422A - Miles lookhart - Google Patents

Description

l N|. LOCKHART.

Chimney Cowl.

y To all whom 'it-may concern l Be it known that LMILns LOCKHART, of Douglas,

' gaat (eine.

MILES LocKnAnT, on DOUGLAS, ISLE orv MAN.

y Letters Patent No. 100,422, dated March 1, 1870. l

in the Isle-oi-Mam do hereby'declare the following statement to be a full andexact description of my invention for an' Improved means or Apparatus for Ventilating, chiefly applicable to chimneys.

This, my said invention, consists in certain improve- `ments m apparatus for Ventilating, chiefly applicable to chimneys, and has, forits object the more perfect Ventilating of chimneys, insuring up-draught, prelventing a down-draught, and rendering it next to impossible for chimneys so fitted to smoke.

This apparatus also can be used for other ventilating purposes.

In the cases of churches,theatersfsheds, dwellinghouses, or other buildings, it will be found of great service, 'as by its means all heated airl(\vhich naturally collects near the roof or ceiling of any vbuilding or room) will he carried away. f

`It alsoapplies to Ventilating mine-shafts, tunnels, amllrailway-carriages, and Vto Ventilating purposes gen- `exa y.-

An ,apparatus constructed according to this my said invention consists in a cowl or cup-shaped head, which has a vane attached to` the top, which vane always keeps the mouth of the cowl-orcup-shaped head facp ingothe wind.

The cowl or cup-shaped head is supportedby means of 4a stay, to which is attached a rod, which rod dcscends down from the head, and sli-ips into a pipe or 'tube which is attached to achimney-top or pipe which i rises from and is'iixed to the brick-work or masonry of the chimney.

The cowl orcnp-shaped head is made to Vship over l the chimney-top or pipe, andby means of the rod shipl pinginto the before-mentioned pipe ortube, i's allowed to revolve round the chimney-pot or pipe according to the direction of the wind.

v To. the inside of the cowl or cup-shaped head is at-Y tached apipe which descends a short distance into the chimney-pot or pipe. This piperevolves with the and at the back of the cowl or cup-shaped head is au opening or outlet for thesmoke.

` In cases of high buildings being near chimneys to which this cowl. or cup-shaped heald is fitted, or in mountainous districts itis preferred to fit this opening or smoke outletwith a guard formed of a series of circular, square, or otheishaped plates,h avingtheir center part cut away and kept some small distance apart from each other, and terminating in a solid plate, or 4a Venitian or other` guard may he used, as found most convenient in practice.

The Schedulerefen'ed to these Letters Patent and making` pari: of the came In order that this invention may be more readily seen and understood, there are hereunto attached drawings which illustrate a cowl Group-shaped head with pipes attached, as hereinhefore described.

Figure 1 is a sectional view of an apparatus according to my invention.

Figure 2 is aback view of same-.

Figure 3'is an outside view.

Figure 4 is an outside view of the cowl-shaped head or cup without guard, and shown with butter-ily wingt 'shaped vane.

Figures 5, 6, and 7 illustrate a guard to be used when required, as hereiubefore mentioned.

Like letters in each and every figure denote like parts.

Arrows denote the direction the wind takes. a`cowl or cup-shaped ihead. l b, vane which keeps the cowl or` cup-shaped hea .with its mouth or open part facing the wind.

" c, pipe which is attached to cowl or cup-shaped head, and revolves together with it, and fits into d, a pipe which leads down the chimney and terminates in an elbow dl, with a mouth, d on its top part.

e, stay, to which isattached f, rod which descends into g, pipe or tube-stay, which is attached to Il., chimney-pot or pipe, which is ixed onto the brickwork or masonry.

j, smoke-box. i

l, aperture or smoke-outlet.

m, guard.

f Figs. 5,6, and 'i',`a, part of cowl or cup-shaped head.

b b* b2 b, plates forming guard to be used as hereinbefore described, when required.

The action of this apparatus is as follows:

The cowl or cup-shaped head is kept with its mouth or openlpart facing the wind by means of the vane b. The wind blows into the, mouth or open part of the cowltheuce down the pipe" c,""attaached to the cowl', thence through pipe d, turning at the elbow dl, and blowing up the chimney and thereby causing an np-draught. It blows up t-he chimney, taking the smoke or hot air with it into the smoke-box j it thence escapes into the open air through the aperture l and guardfmI when Iitted.- l

The arrows indicate the direct-ion of the-wind, as just described. i

In cases of churches, theaters, sheds, dwellinghouses or other buildings, also in mine-shafts, tunnels, railway carriages and general Ventilating purposes, the

operation of the apparatus is similar to that hereinl,

tion, and I having now fully described and ascertained the object and purposes of the same, together with the manner in which the same is to he or may be performed or cam'ed out into practical e'eot, I wish it to be distinctly understood that I do not confine myself to the several proportions-and relative dimensions of lthe various parts of the construction, as it will be readily seen that the same may be considerably varied without departing from my invention; but

What I claim as new and my invention, is-

The combination of a cowl or other cup-shaped head, being kept with its open part or mouth facing the wind, and vhaving connected with it apipe which leads down the chimney (ventilator in other cases) having an elbow'with a monthfacingupward at its end, and

this cowl or cup-shaped head revolving round the casing or chimney-top, (or Ventilating pipe) and the action of the several parts being for the purposes laereinbefore described and set forth.

In witness whereof, I, the said MILES LOCKHART, have hereunto set my hand land axed my seal this 25th day of May, in the year of our Lord one thousand eight hundred and sixty-nine.Y

MILES LOGKHART. [1.. 8.] Witnesses:

F. J. OHEESBROUGB, I. H. llEDliafoNIn-li;`

Both of 43 Castle Street, Liverpool.

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