US12992A - Ship-ventilator - Google Patents

Description

UNITED sTATEs PATENT oEEIoE.

ERNEST BAHR, OF ROCHESTER, INDIANA.

SHIP-VENTILATOR.

Specification of Letters Patent No. 12,992, dated June 5, 1855.

To all whom t may concern Be it known that I, ERNEST BAHR, of Rochester, in the county of Fulton and State of Indiana, have invented a new and Improved Ship-Ventilator; and I do hereby declare that the following is a full, clear,

and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure 1, is a side view of my improvement certain portions of the helical tube being bisected in order to show t-he valves and guard plates therein. Fig. 2, is a small transverse section of a vessel showing the connection of the improvement to an inverted conical funnel underneath the deck.

Similar lett-ers of reference indicate corresponding parts in the two figures.

This invention relates to a new and improved ship ventilator, and consists in placing within a helical tube a series of valves and guards arranged as will be presently shown and described.

A represents a helical tube formed of two coils (a) (b), one of which (b) is connected to a horizontal tube B underneath the deck C of the vessel. The end of the other coil (a) extends upward and then passes downward and terminates in a. fork or two ends D, E, one of which D is so arranged as to turn so that it may be made to face the wind. deck O. The end D is in a vertical position and the end E is in an inclined position not diiering very much from a horizontal position. The coils (a) (b) may be about two and a half feet in diameter and the tubing of a proper diameter.

The lower p-art of the end D terminates in a small rect-angular chamber (c) and has a valve (CZ) attached to it opening downward, see Fig. l, and a short distance above the valve (CZ) there is secured within the tube a guard plate (e) which is in an inclined or oblique position and extends nearly across the tube leaving a space sutiicient for the air to pass through. The outer end of the part Elias also a. rectangular chamber (f) att-ached to it, having a wind wheel (g) at its outer end and a. covering of wire cloth (Zt). At the end of the tube there is attached a valve (i) opening outward and supported by a prop (j). Between the valve (2') and wind wheel (g) within the The two ends D, E, being above the` chamber (f) there is an inclined guard plate 7c) which extends downward within a short distance of the bottom of the chamber (f), and at the joint or elbow ofthe tube there is a guard plate (Z).

On the vertical portion Iof the coil (a) there is placed a rectangular chamber (m) which communicates with the tube or coil (a) the tube passing into its upper and lower ends, the lower end or portion of the tube having two iiap valves placed over it which valves work between a fork at the lower end of a detached tube E within the chamber (m) and the end of the tube (a). The upper end of the detached tube E, and the end of the tube (a) has a valve (0) fitted between them. l/Vithin the coil (a), its circular part, there is a valve also placed within a` rectangular chamber (g) similar to the other above mentioned.

One or more helixes A may be attached to the deck O, and communicate .with the horizontal tube B underneath the deck, said tube having an inverted funnel shaped discharge opening F, see Fig. 2.

rIhe air enters the endsof the chambers (c), (f) a hole being made in the lower end of the chamber (c). The wheel (g) rotates and gives a draft, or impetus, to t-he current. The air passes around the guard plate (7c) and valve (i) and into the tube (ai) and then around the guard plate (Z) and so o-n around all the valves and plates above described and enters the tube B and is discharged into the vessel through the discharge opening F.

The above invention is designed to prevent water from entering the vessel through the ventilator, while air is admitted. This is important because the decks are often sweptover by the waves. Now if the water is forced up in the end D it will probably close the valve (d), or if any escapes through it will be checked by the guard plate (e). The same ei'ect will be obtained by the. water entering the end E, the guard plate (7s) and valve obstructing its ent-rance into the tube (a), but still if it should pass up the vertical portion of the tube (a) there are two valves (a) (a) to check or prevent its ent-rance into the tube E and the water will flow back through side .apertures (1') (7') into the vertical part of the tube (a). The same obstruction is presented to of cork or other light substance so as to be easily acted upon by the Water.

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

The helical tube A provided With Valves (o) and guard plates (l) (e) as herein shown. One end of the helix terminating above the deck C in t-Wo parts D, E, the part E being provided With a Wire Wheel (g) and Wire Cloth covering (IL), said part E being movable so that it may be turned to face the Wind at all times, for the purpose set forth.

ERNEST BA1-IR.

Witnesses:

LUNEY KEITH, W. H. SLooUM.

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