US696724A - Chimney and ventilator. - Google Patents

Description

CHIMNEY AND VENTILATOB.

(Application filed Sept. 23, 1901.) (No Model.)

WITNESS 8 INVENTOI? ma Noam: PETERS co. wncruumoq wAswm-Ycm, n. c.

Nine STATES A'IFNT FFICE.

CHIMNEY AND \IENTILATOR.

SPEGIFICATION forming part of Letters Patent No. 696,724, dated April 1, 1902.

I Application filed September 23, 1901. Serial No. 76,158. (No model.)

To aZZ whom it may concern:

Be it known that 1, WILLIAM DAVIS, a subject of the King of Great Britain, residingin the county of Middlesex, England, have invented certain new and useful Improvements in Chimneys and Ventilators, of which the following is a full and complete specification, such as will enable those skilled in the art to which it appertains to make and use the same.

The object of this invention is to provide improved means for producing a current of air in the uptake shaft or chimney of a building or other place to be ventilated; and for this purpose I provide at a suitable point in said shaft or chimney a series of holes which are diametrically opposite one another. Each of these holes is provided with a pivoted valve, each of which is connected to the one diametrically opposite. The air-currents are directed into the aforesaid holes by means of a pair of conical shields or rims, the space between the same being divided into as many spaces as there are holes, so as to direct the air-currents into the said holes. By this arrangement the force of the air entering the said holes will produce an updraft, thereby securing more perfect ventilation, and the valves being diametrically connected open alternately on the opposite sides or alternately open on one side and close on the other,thereby preventing the egress of air on the opposite side of the shaft.

My invention is fully disclosed in the following specification, of which the accompanying drawings form a part, in which the separate parts of myimprovement are designated by the same reference characters in each of the views, and in which- Figure 1 is a sectional side elevation of a chimney provided with inyimprovement; Fig. 2, a view similar to Fig. 1, showing a modification; and Fig. 3, a plan view of the construction shown in Fig. 1.

In the drawings forming part of this specification, (t represents the uptake-shaft or chimney and is provided with a suitable number of holes 6, diametrically opposite one another. Each of these holes is provided with a valve 0, pivotally connected to the inside of the shaft or chimney at 61, each of said valves being pivotally connected to the valve diametrically opposite through the medium of the rods or levers e. The air-currents are directed into the holes 6 aforesaid by means of the two conical shields or rims f, the space between same being divided by suitable plates or partitions 9 into as many spaces as there are holes. It will be seen that by this arrangement the force of the air or wind entering the holes b will cause an updraft, and the valves 0 being diametrically connected will open on one side and close on the other, thus preventing the egress of air on the opposite side of the shaft or chimney to that in which it enters.

Referring to Fig. 2, I provide at a higher point another series of holes 72, these holes being provided with valves 11, also diametrically and pivotally connected together through the medium of the rods or levers 76 and pivoted to the outside of the shaft or chimney at j, so that when an updraft is produced these valves will open on the leeward and close on the windward side. This arrange ment adds to the efficiency of my ventilator, as a strong current or draft of air is caused between the two series of holes, which in= duces a correspondingly strong current up the ventilator or shaft.

It will be seen that my invention may be readily applied to ships funnels or other places where an upward current of air is required.

Having fully described myinvention, what I claim as new, and desire to secure by Letters Patent, .is-

1. A chimney, updraft, or ventilator shaft provided in the opposite sides thereof with holes or openings, conical shields or rims secured thereto above and below said holes or openings, radial partitions between said shields or rims and forming passages leading to said holes or openings and pivoted valves for closing said holes or openings, the diametrically opposite valves being connected, substantially as shown and described.

2. An updraft, chimney, or ventilator shaft provided with oppositely-arranged holes or openings, annular shields secured thereto above and below said holes or openings, radial partitions placed between said annularshields and forming passages leading to said holes or openings, internal pivoted valves operating to close and open said holes or openings, the

my invention I have signed my name, in presence of the subscribing 'Witnesses,this 7th day 10 of September, 1901.

WVILLIAM DAVIS.

Witnesses:

ALFRED NUTTING, H. D. J AMESON.

Images