US623424A

US623424A - Pompeo fieri

Info

Publication number: US623424A
Authority: US
Publication date: 1899-04-18
Anticipated expiration: 1916-04-18

Description

No. 623,424. Patented Apr. l8, I899.

. P. PIERI.

PADDLE WHEEL.

(Application filed Oct. 15, 1898.) (No Model.)

g Q Rm beo Paera Un'rrnn Sterne Parana Prion.

POMPEO PIERI, OF PARIS, FRANCE.

PADDLE-WHEEL.

SPECIFICATION forming part 'of' Letters Patent No. 623,424, dated April 18, 1899.

Application filecl octo'ber 15, 1898. Serial No. 693,678. (No model.)

To all whom, it may concern:

Be it known that I, POMPEO PIERI, a subject of the King of Italy, permanentlyresiding at Paris, France, and tem porarily residing in the city, county, and State of New York, have invented certain new and useful Improvements in Paddle-Wheels, of which the following is a full, clear, and exact specification. My invention relates to paddle-wheels for steamboats and the like; and the object of the invention is to provide a paddle-wheel that is less liable to be damaged than the ordinary paddle-wheel and will when in motion increase the speed of the boat to which it is secured.

Myinvention relates also to the particular arrangement of my improved paddle-wheel, to be hereinafter fully described.

In constructing the paddle wheel I make that portion to which the paddle-wheel blades are fastened of large diameter in order that strength of action upon the water may be obtained. I provide three sets of paddle-wheel blades, consisting of six blades, and arrange them alternately on both sides of the wheel. The blades on the inner side are spoon or oar shaped, while the blades on the outside of the wheel are so formed that they will incline to the center of the paddle-wheel. By thisconstruction I am enabled to cause a saving of fuel in that a lesser power is required to drive the paddle-wheel than is required with the ordinary wheel. The object of' inclining the outer paddle-wheel blades is to have them take up and throw aside the water cast up by the blades on the inner side of the wheel.

It has also been the usual practice heretofore to provide ships with paddle-wheels at theirstern; but in my construction I provide a set of paddle-wheels at each side of both the stern and the prow, which receive their power from the engine in the usual manner.

Referring to the drawings forming part of this application, in which similar letters of reference indicate similar parts throughout, Figure 1 represents a portion of a ship provided with myimproved paddle-wheels. Fig.

2 represents the paddle-wheel; and Fig. 3 is a sectional view of the paddle-wheel, taken on line a at of Fig. 2.

In securing the inner and outer paddlewheel blades A and X, respectively, to the wheel B any desired or suitable means may be employed. It is usual to use ordinary bolts or studs with nuts at the ends to prevent them slipping out. In the drawings I have shown the studs at d.

The paddle-wheels at the stern are secured to a common axis at D, about which they revolve and at such distance from the body of the ship as to prevent the blades from coming into contact therewith. .At the prow of the ship the paddle-wheel blades are similarly secured to a common axis, about which they revolve; but the entire paddle-wheel is secured to the body of the ship proper by means of the axis, which penetrates and runs entirely through the prow. The paddle-Wheels at both stern and prow may be driven by an engine situated at or about the center of the ship, furnishing power to them, or a separate power-engine may be employed for each paddle-wheel,or I may use any other motive power giving the desired result.

I may of course use any number of paddlewheels of any suitable size arranged at any desired plan; but I prefer to arrange them as above described, at the prow and at the stern.

The blades have a straight leading edge extending radially or substantially so, while the rear edges of the blades are curved, and the rear portions of the blades are curved to the front, forming spoon-like or concaved surfaces. By reason of the spoon-like or concaved surfaces the front blade of each pair will throw or turn the water laterally into'the path of the spoon-like or concaved surface on the second blade of this pair. The propeller may be used as a paddle-wheel, in which case the upper part thereof would be out of the water and the straight edge would be the leading edge, which would cut the water when it reaches a horizontal position, or the line 4 4 in Fig. 2.

Having described my invention, what I claim, and desire to secure by Letters Patent, larly bent with their concave faces on the :o is same side substantially as described.

In combination in a paddle-Wheel, the two In witness whereof I have hereunto set myblades, one beingarrangedin rear of the other, hand in presence of two Witnesses. both blades havin strai ht leadin ed es and curved rear edges with the ooncav e or spoon- PQMPEO PIERI' like face, said ooncaved surfaces being formed Vitnesses: by bending the rear curved and upper parts GEORGE GUSTAV SCHOENLANK, 0f the blades laterally, both blades being simi- OTTO -MUND.