US543179A - Benjamin a - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.;

-- B. A. DAVIS.

MEANS FOR PROPELLING VESSELS.

"No. 543,179 PatentedJfily 23,1895.

- I WT (No Mqdel.)

B. A. DAVIS. MEANS FOR PRO-PELLING VESSELS.

Patehted JuIy ZS, 1895.1?

JWIZ'NESSES. 'r

A ITO/WEE '50 blower.

UNITE STAT-Es BENJAMIN A. DAVIS,

PATENT 'OFF I' on NEW YORK, NQY.

MEANS FOR .PROP'ELLING VESSELS.

SPECIFICATION forming' pait of Letters Patent No. 543,179, dated July 23, 1895.

Application-filedd'uly 13,1894. Serial No. 517,424. (No man.)

To all whom it may concern.-

I Be it known that I, BENJAMIN A. DAVIS, a citizen of the United States, residing at New York city, in the county of New York and State of New York, haveinvented certain new and useful Improvements in Means for Propelling Vessels; and I do hereby declare the following to bee full, clear, and exact description of the invention, such as will enable others skilled in the art to which it ap-' pertains to make and use the same.

My invention relates to certain new and usef ul improvements in means for propelling vessels.

It has for its object the utilizationot air under pressure in such manner as to obtain direct reactionary efiects, and also to secure the fullest results by delivering the air against an enlarged area of water.

With these objects'in view my invention consists in the peculiar construction and arrangement hereinafter fully described and specifically claimed.

. While my improvements are designed to be used as an auxiliary to any other well-known means of'propulsion, they may be successfully employed without the aid thereof. I I

In order that those skilled in the art to which my invention appertains may fully understand the same, I will proceed to describe the construction and arrangement and the T principle involved,referring by letters of reference to the accompanying drawings, in 'which- Figure 1 is a side elevation, partly in section, of a vessel embodying my im provements.

Fig. 2 is a side elevation with a portion of the hull broken away, exposing the relation between the blower and the air-conduits, and

also showing a'pipe communication with the blower and the smoke-stack. Fig. 3 is a detail section illustrating a modification of end of the air-conduit, and Fig. 4 is a detail sectional view illustrating the bell-mouth or end of the air-conduit extending beyond the hull of the vessel. Fig. 5 is a side elevation, partly insection, of a vessel, this view being designed more particularly to show the exhaust-pipes communicating with the engine-room and cabin, and also connected with the eye of the eral figures of the drawings.

A represents the hull of a vessel, and B is a smoke-stack. A suitable blower O. is arranged at any convenient or desirable locality in the vessel and adapted by suitable con nections with the engine to be driven at any required rate of speed. This blower may beconnected by suitable pipes DD with that Similar letters indicate like parts in the sev- I portion of the vesselwherein the cargo is 10- cated and adapted to drawair from and through the cargo to suitably ventilate the same and to supply the blower with air. Suitable pipe connections may also be made with tiousof thevessel which it may be desirable to ventilate. p or more pipes E,-may connect the blower with the smoke-stack B to utilize the exhaust and heated air and to assist in regulating combustion.

F is an air-conduct connected with the blower C and extending toward the stern of the vessel and terminating at a line coinci-- dent with the stern, as shown clearly at Fig. 1. The terminal end. of the air-conduit F is made of cone or bell shape, as seen at Figs. 1, 3, or 4, in order that an increased area of water surface may be presented for, the actionof the air forced through the conduit F by the blower (3. Another airconduit. G extends from the blower to thebow'ot the vessel and is similarly enlarged at its extreme or delivery end.

While I have shown the air-conduits'as extending to and being coincident with the lines of thestern and bowofthe vessel, it

will be understoodthat'the straight air-conduits may connect with cone-shaped or bell-- mouthedirecesses formed in'the hull--that is to say, the hull of. the vessel may be so con-' Other connections,'such as one the state-rooms, furnace-room, or other porstructed as to provide a flaring orbell-mouthed terminal for the air-conduits.

I have shown at Fig. 4 the. air-conduit extending beyond the plane of the hull of the vessel; but I prefer the construction shown in the other figures of the drawings, although I do not wish to be limited in this respect; nor do I wish to be limited to the geometrical form of the flaring mouth or exit of the airconduits, so long as the generic idea isin- .prevent ingress of water.

Hin the air-conduit G is closed, and if the air-conduit G is being used to back the vessel then the gate H in .the conduit F is closed,

and each air-conduit is provided with a gate or valve I near the" blower, so that the current of air under pressure generated bythe blower may be controlled in an obvious way and delivered to either one of the conduits.

'lhe conduits FG terminate below the waterline of the vessel and preferably incline downwardly, as shown.

A great variety of changes may be made in} the details of construction and arrangement of parts without departing from the gist or principle involved in my invention, which consists in so forming the delivery end of, the air-conduit as to present a broad area of water, against which the air forced by the blower will come into contact, thus-largely increasing the reactionary power of the air.

It is desirable that the'air-conduits should be throughout their length as unobstructed as possible by bonds or curves. in order to lessen the friction of the air, and it will be understood that I do not wish to limit myself to. any exact, location or number of, the airconduits or to the point at which they shall 5 by Letters Patent, is-

I 1. In combination with the blower O and .air conduits F, G, pipes D, connecting wit-h the cargo' space, and the eye of the blower, to ventilate the'cargo and supply air for compression, substantially as and for the purpose set forth.

2. In combination with the blower Can'd air conduits F, G, the pipe E connected at one end with the smoke. stack B, and at the other end with the blower C, substantially as and for the purposeset forth.-

3. A vessel havingone or more air conduits FG extending from a blower 0, said air conduits being continuous and uniform in diameter, and terminating in enlarged or. hell shaped mouths, in combination with exhaust ,pipescommuni'cating with the cabins, engine room or smoke stack, substantially as and for the purposes set forth.

In testimony whereof I affix mysig'nature in presence of two witnesses.

BENJAMIN A. DAVIS. Witnesses:

SAML..I. WRIGHT, GEO. W. Po'rTER.

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