US193008A - lindsay - Google Patents

Description

2 Sheets-Sheet 1.

` n. LINDSAY.

FEATHERING PA-DDLE-WHEELS.

Patented July 10,1877'.

` N-PETERS, PHOTO-LITHOGRAFHER. WASHINGTON, D CV -ZShe'ets-Sheetz.

D. LINDSAY. FEATHERING PADDLE-WHEELS.

No. 193,008, Patented July 10,1877.

l NHL-TERE, PHOT0LITHOGRPHER. WASHINGTON. D C.

' f remove-Mem m F'ATHRING 'Monheim-isere..

'DAviD LINDSAY, or" rrrrsenne,,PENNsYLvAnIA.` Y

Speciicationiforrning part of Letters Patent No. 193,008, dated uly 10, 1877 application filed i June 12; 1877.

To" allrwhomttjmy concern; Be `it known than, Divin LINDSAY, @friesburg,county of Allegheny, State of Pennsylvania, have invented or discovered ajnewand useful Improvement in Feathering Paddle- Viheels;` andI do hereby declare the follow-` ing toy bea full, clear, concise, and exact description thereof, reference being hadto the accpnipanying drawing, making apart `of, this specification, in which-lke letters indicatin likepartsw 4 i Figure l is a perspective view of my improved feathering paddle-wheel, with part of the case broken away. Fig. 2 is a top-plan viewof the same, the" cap of the frame-work being removed. Fig. 3 is a detached view, showing in sectional elevationa'par't of the apparatus for featheiing the paddles. Fig. 4 is a perspective view of the cam-ring, which gives motion to such apparatus. Fig. 5 shows, in outline, one method of adapting my improved wheel to the stern of an ordinary river-boat; and Fig. 6 is a detached perspective, partly in section, showing certain modifications in the apparatus.

My invention relates to that class of paddle or propelling water-wheels known as feath erin g-wheels, wherein each blade or paddle is made to present its face transverse to the line of motion during some certain part of its revolution, or while such position would assist in propulsion, and during the balance of its revo lution the face of the blade is turned so as to bein the plane of its revolution, and thus offer a minimum of resistance.

My improved Wheel is intended to operate under water-that is, the whole of the wheel proper being submerged; and, as hereinafter described, it may be used both for propelling and steering.

A, Fig. 1, represents any suitable framef work, in which is mounted an upright shaft,

B, in such manner as to be free to rotate or `turn in suitable bearings on the frame-work,

and also to have sufficient strength for supporting and carrying the paddles. The lower end of the shaftB has an enlarged head, in whichl are holes s, Fig. 6, corresponding to the position and number of the paddles employed.

Each' paddle consists of a blade, a, and shaft a', and, by preference, I support them in posiing two bearings to'each paddle, and making it free to turn in such bearings;

means of a sleeve clamped to the shaft of each between the bearings, orinany convenient W ay i ,y t Thering b is securely attachedl to `the shaft B by means of arms b?. An additional ring, b2, may, if desired, `be placed outside the blades ofthe paddlesand.the blades pivoted thereto, as shown in Figs. l and 2. I prefer to make sueh ring, Mwhen employed, in sections, as

shown `in Fig. 2, so that `any paddle may be removedwithout removing or disturbing ,others. This rin'gb2 may also be supported by arms extending from it to the shaft B.

In order to featherthe blades of the paddles, or turn them from a vertical to a horizontal position, and vice versa, I make use of bars or rods c, which are pivoted at their lower ends to cranks or lugs u on 'one side of the shafts of the paddles, and at their upper ends they connect with wrists or rollers e, which work in a cam-groove, 1', Fig. 4. The connection between the rods c and wrists e may either be direct, as shown in Fig. 6, or may be made through the medium of levers or cranks, as shown in Fig. 3.' I prefer the direct connection both for simplicity and compactness of construction.

As shown in Fig. 6, a collar, d, is secured to the shaft B, .having guide slots or recesses d in its periphery for receiving and guiding the bars o. lAs there shown, this collar d is placed nearly opposite the cam-ring r. In the form of connection shown in Fig. 3, atended lugs i are formed on the periphery of the shaft B, opposite the cam-ring r. Levers or cranks e are pivoted at one end to these lugs, one on each, the other ends of the cranks being pivoted to or connected with the rods c. Wrists e are attached to these crank-levers o, which operatein the cam-groove r substantially as when the direct attachment is made, as described, and shown in Fig. 6.

The ring 1", in which is the cam-groove r, is inclosed in the case or boi; C, which, in turn, is securely fixed to the frame-work. The ring tion'by passing the shaft a( throiigh suitable 1 `The paddles may be `secured in place by is thus supported independent of the shaft B and the devices which the shaft carries. Thus, while the shaft is rotated by the driving machinery, the ring may remain stationary, or may be moved, as hereinafter described, independent of the shaft. The cam-groove lrin the ringhjr is so made as to give the wrists e a verticallyreciprocat ing movement as they move around the groove, and this vertical movement is sufficient to givev to the paddles, through the rods c, a quarterturn, and so give the blades, alternately, a horizontal and vertical position. rEhe groove is also so shaped, by preference, that two paddles, at least, may at all times operate topropel a boat. This is accomplished by making the cams in the groove of proper llength of throw.

While the ring r remains in any given position, the paddles will be made to workthat is, will be changed from a horizontal to a vertical position-at a certain part of their revolution corresponding to the cam in thering. 1f the ring be turned in its case so as to change the position of the cam, the working-point of the paddles will be correspondingly changed, and so the line or direction of power exerted thereby will be changed. The ring may be turned in its case for this purpose by any convenient mechanism. The device which I have shown, and which I now believe to be the best, is a pinion or geared rim, n, attached to the ring r', and a rack-bar, o, sliding in suitable bearings in the case (l, gears into the pinion, so that, by moving the rack back and forth, the ring may be turned, as desired. By properly connecting a tiller-iope to the rack-bar, the described mechanism will be under the control of the pilot, and may be operated by him to steer the boat, as well as propel the same, in an`y desired direction.

I have shown in outline, Fig. 5, two of my improved wheels geared to the crank-shaft ofv a stern-whee1 boat. Other forms of adapta tion may be made, however, varying with the different conditions involved, and such changes in adaptation will be readily made by the skilled mechanic.

I claim herein as my invention- 1. In a feathering paddle-Wheel, the combination of shaft B, a series of continuously-rotating paddles pivoted thereon, rods c, wrists e, and cam r, substantially as set forth.

2. The combination of adjustable ring r', having a cam gro0ve, r, therein, wrists e, rods c, paddles a, and shaft B, substantially as described.

3. The combination of rack-bar o, geared cam-ring 1", wrists e, rods c, paddles a, and shaft B, substantially as set forth.

In testimony whereof I have hereunto set my hand.

DAVID LINDSAY.

Witnesses:

JNO. A. MELsoN, CLAUDIUS L. PARKER.

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