US989769A - Propelling mechanism. - Google Patents

Description

' 0. E. EDWARDS. I PROPELLING MECHANISM,

APPLIOATION FILED SEPT. 8, 1910.

l I 9 1 .1 n p A d W m 00 y cnnanns n. EDWARDS, or EVERETT, wasn'rnerozu.

PBOPELLING MECHANISM.

Specification of Letters Patent. ?afl;ent fl Artemis 1&11,

' Application filed September 8 1910 Serial No. 580,998.

To all whom it may concern..-

Be it known that I, CHARLES E. EDWARDS,

a citizen of the United States,'re'siding at Everett, in the county of Snohomish, State of Washington, have invented a new and; useful Improvement in Propelling Mechanisms, of which the following is a specification. I My inventionrelates to propelling mechanisms adapted for use influids, and comprises certain novel parts and combinations which will be more fully pointed out and defined. 1

The object of-my invention is to produce an improved formof propelling mechanism, and one in which the revolving propeller is not the only propulsive member, .but in which the discharge from the revolving Wheel is received upon inclined blades or surfaces which are placedat such an angle f that this discharge acts thereon to propel detail showing the relative angular 'tions of the revolving and stationary b ades the body carrying them in the same direction as does the revolving wheel.

In the drawings accompanying this specification I have shown, 1n simple form, a preferred mechanismillustrating the principles of, my invention and the manner in which I may secure the desired results. Figure l is a side sectional elevation of the propelling members. Fig. 2 is =-'a front face view or elevation. Fig. 3 is a sectional and the manner of impact ofthe-fluid upon the latter. Fig. 4 is a detailshowing the construction of the hub or center of the stationary wheel. Fig. 5 is a detail showing. the manner of securing the itationary blades to the rim and to the central hub.

I have discovered that by ler ofsuch shape that the fluid 1n w ich it works will be given a considei'able gyratory or rotative efi'ect, and then placing in the .it somewhat'jln water.

using a ropelmeaning toimply that it may not be used in water. The fluid in which it is used .may' ,be either gaseous or liquid.

The device consists of two principal parts which cooperate to produce the improved ef- "feet, namely: the propeller or equivalent means acting upon the air or fluid to giveit gyratory or rotative action, and preferably also producing a propulsive efi'ect and with this set of non-rotative inclined surfaces, sails or blades, set at such an angle as .to receive the fluiddischarged from the revolving wheel or propeller, at such an angle as to act like a sail to produce a propulsive e'fiect in a direction making a relativel slight angle with that of the movement 0 the fluid and in apparent opposition thereto.

I have shown as the means 'for acting upon the air to give'it the pro ergyratory action, a propeller wheel 1, w 'ich may be of any approved form and turned by any convenient means, except as particularly otherwise pointed out; As shown this proellcr is supposed to have two blades. These lades are shaped somewhat differently from theform which is most generally accepted as the best formior a propeller. In Fig. 3

tion. This shows that the advancing ed e 10, is i clined so asto sharply cut' the air, being rather closely approximating in its direction to a plane which is normal to theaxis of revolution.

The rear or following edge 11, of the proone of these blades is shown in cross secpeller blade is, on the contrary, closely apprpximatin in its direction, with that of an axial p ane, the surface between these edges-being curved so as to smoothly trendint'o 'these different angles. This makes the acting or drivingface of the propeller blades deeply concaved, whereby they act to drive the air rearwardly and also to give it a considerable gyratory or rotative efi'ect. The rearward movement of the air produces a reactive forward-driving efi'ect. The rotative or gyratory movement of the air thus produced causes it to impinge upon the inclined,

non-rotative or fixed blades 2, after the manner indicated by the dotted line a in Fig. 3, acting upon these as sails to produce a forward propulsive cited. The air discharged from the wheell acts upon the surface of the blades Q'Which is farthest from the wheel, but at such angle as to pull them forward. These stationary blades I prefer to make in the form of a wheel which is 10- cated close behind the revolving wheel 1. To prevent peripheral discharge of the air with out its exerting its full eflect upon the blades 2, I prefer to inclose these blades within a rim 3. As shown, these blades are riveted or otherwise secured to therim by their ends, their middle portion being bent about a bar 4 of the hub which extends somewhat in an axial direction, the two ends of the same piecethus forming two consecutive blades.

The hub consists of a series of the bars 4 and binding rings '5. The rings 5 should be sufiiciently small to place the blades-under tension. The bars 4 are preferably provided with grooves in their outer ends, on one side, to receive the rings 5. This construction makes a hub having a clear opening in its center.

The propeller wheel 1, I have shown as connected with an explosive engine 6, which would probably be the preferred source of energy in most cases. be anything which is most available and adaptable.

The rotation of an ordinary propeller.

This may, however,-

The resultant of these two effects is zero, one counterbalancing the other, wherefore, my device may be used upon aeroplanes or other structures without producing thereon any of this rotative effect. 4

I have found that by using this form of device the same expenditure of power produces a greater driving effect than can be produced by the use of a propeller alone the latter being of the most accepted design and proportion. Y

I claim:

1. A propelling wheel comprising a rim, a central hub having bars extending in a general axial direction, andaseries of blades having their ends secured to the rim in an angular position, and the middle portion of each passing about one'of the bars of the hub.

2. A propelling wheel.comprising a rim, a hub consisting of a series of bars extending in a general axial direction and rims in closing said bars, and bladeshaving their ends secured to" the rim in an angular position and their middle the bars of the hub.

CHARLES E; EDWARDS.

portion passing about

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