US79183A - Kobeet at kin - Google Patents

Description

ILPEYERS. PHOTO-LITHUGRQPHER, WASHINGTON. D. C

@with initiateur fait) Letters Patent N'o.- 79,183, dated June 23, 1868.

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TO ALLWHOM IT MAY CONCERN: l

Be it k'nown that I, ROBERT A'rKIN, of Brooklyn, in the county of Iings, and .State of New York, have invented certain new and useful Improvements in Propelling Vesselsi and I do hereby declare that the following is n full clear, and exact description thereof, which will enable others skilled in the art to make and u seV the same, reference being hadto the accompanying drawings, forming `a part of this specification, in which--A Figure 1 is a plan view ot' my invention, when thepropeller is operated bya chain-belt, or `its equivalent,- the view being taken from a section Athrough iig. 3. i i .i

Figure 2 is a similar view, when an eccentric-rod and crank are employed.

vFigure is a side view of the invention, taken fronitig. 1'. l Figure 4 is a side view 'of the invention, when the propeller is raised from the water.

Similar letters of reference indicate corresponding parts.V Y p This inventionrrelates to certain improvements in'the` method ofpropelling vessels, chiefly intended to be used as an auxiliary power to sailing-vessels. Y l i,

I propose to apply to the sides of the vessels (at that` part where paddle-wheels are usually placed,) screwpropellers, which are setin bearingsl in frames hinged or jointed to the sides ofthe vessel, and capable of being lraised or lowered from lthe bulwarks by means of lifting or suspending-chains, workedby a windlass or other equivalent gear. The frames are also held by supporting-chains from the bulwarks, the lifting-chains being hung from the davits. The frames contain screws or Propellers, driven by endless chains, and whelped bosses on the shaftsf or the shafts may be actuated by toothed gearing, in either case worked by steam-power, then chains or shafts passing through the sides of the vessel.' One or more screws may be plaoed'on each side of thevessel, `end by reversing the engineion one side, and going aheadion the other, the vessel may be turned round in a space little more than her own length. By placing the Propellers amidships, andon each side of the vessel, the vibration incidentto the use'of the screw-propeller is reduced very considerably, and an economy ofspace will be effected. When thewind is fair the propellers may be raised from-thc water, and the use of the steam-power be discontinued. I i

As I propose to employ, for the 'purpose of working Vthe auxiliary screwpropellers, steam-engines of but smallsize and little weight, running at a suitably high speed, so `as to actuate the propellers as directly as possible, and without the intervention lofheavy, expensive, and complex gearing,- I am, by the arrangement and disposition of parts of the machinery and gearing herein `described'and illustrated, enabled to contri-ve and utilize, in the same-engines, severalfunctions besides that of engines lfor `propulsion (as auxiliary engines) whilst at sea, when in'a calm, or with lighter adverse winds, those of actuating steam-Winches, steam-cranes, steam-derricli gear, or other forms of steam-apparatus for loading or unloading cargoi also for actuating fireengines, or other water-pumping apparatus, and performing other work in and about a ship.

In thc accompanying drawings, Ihave merely shown ,the general character of the auxiliary propellingapparatus, and the-principal features thereof, without attempting to elaborate the plans or means fdr actuating or giving motion to the propelling-apparatus, or showing the various modes of construction and arrangements cf'parts, which it might berequisite er necessary to adopt'rto'suit the particular requirements of cach ship, ol the existing arrangements of her bulk-heads, or h'er internal construction or fittings, but in every-case, njh'lss the power and disposition of the steam-engines or boilers, 'and gearing for actuating the propellers, are to be primarily determined with reference to the auxiliary propulsion of the ship.4 I

-The further object which I seelrto carry out, when putting my invention into practical use,`is to so arrange und dispose the motive-powerapparatus as to'utilize itifor other purposes, as hereinbefore stated.

The several 'figures show tliei'n'nde -of applying the apparatus in accordance with my invention, wherein 'the iron framing containing a screw-propeller is shown as 'hinged to the ships side, and suspended froma davit by means o f asuitable Vtacklefrotary motion 'being given to 'the screw-propeller-by means of anendless chain passing over a pitch-wheelwithin board,`and a corresponding wheel upon the, axis or short shaft of the screw'.

The screw is mounted -between the jawsof the hinged lframe, and suitable collars and bosses are provided, for receiving-and `resisting the thrust ofthe screw. vThe frame is capable of being raised out of the water by means of the (invit-tackle, so'that when the shipis required to be 'under canvas alone, the frame and screw beingraised, oier no impediment to' theships sailing.V A l l In the several views, A is the ship; B, the screw-propeller; C,lthe frame; D, the chainiwheel, ittedupon the screwpropeller; E, the endless chain F, the chain-wheel, fitted within the ship, by means of which motion is transmitted to the screw-propeller whilst inuse. A boxing, G, is shown, in which the chain-wheel connected with the motive-power is fitted, and by means of which boxingthe openings left in the side of the ship for the :passage of the chain are enclosed. H is an iron bow, for connecting the-chain or rope from the davit tothe hinged frame; I isfthe suspendingrope or chain, and K the davit.

Motionmay be given'to therpropller itted in each side of the ship, by means oflseparate and independent steam-engines, moving at asuitably highspeed, and operating the chain-pulley contained within the boxing or l water-tight casing, directly, by means` of a. crank at each endof the pulley-shaft, euch crank being set at a proper angle, and the diameters of the two chaiu-pulleys lmay be of different sizes, to give the requisite speed to the propeller.

Instead of mounting two small vertical or angularly-placed steam-engines, one on each side of the boxing G, a pair'l of small engines 'may beitted to the ships side, or under or on the-deck, and the double crank-shaft thereof be coupled to-he en'd of/thechain-pulley shaft, projecting on one ,sideq through the boxing. I

Whenifoundto he more convenient, 'one-pair of engines, of larger 'size and power, may be placed 'between lthe port and starboard propellers, and the-motion thereof be communicated, either by means ofishafts and "wheel-gearing, or by chains and.chain-wheels.l Instead of employing chain-wheels and endless pitch or other forms of chains for connecting the inboard gearing with, the ovcrhanging screwpropeller, for the purpose of rotating it, wheel-gearing and shaiting may be substituted.

The hinged frames'for containing the screw-Propellers, ln'steadr of being ofthe form and construction shown inthe various figures of the accompanying drawing, and mounted or hung fromthe side of the vessel, as therein shown, may be soformed as to arch over from the ships sides, (instead ofprojecting-therefrom in a'straight or` nearly' straight 1ine,) and so admit of any desired'. arrangementof staying or trussing, without interfering, by the exposed surface'thereoi, with the motion of the ship throughthe water whilst under steam.v

Byprefernce, I propose'to place the steam-engines 'and boilers as near as may'beconvenient to'thepro v pellets placed on each side of the-vessel amidships, as thereby the various mechanical contrivanc'es'for .eargol working, pumping, capsta'n andw'indlass-workiug, und other purposes, may be morereadily connected, set 4in Amotion, and-worked, so that when thesteam-engines are not-required to be solely or entirely` employed in propelling, they may bused for other purposes whilst at sea, and when the ship is in harbor the engines maybe employed .for cargo-tuovingandother' purposes..

Figsul, 3, and 4,!exhibt the invention-when the chainLbelt is employed .for-"connecting the propellcrwithz the. in'board-wheel- F, but 'at fig. Zthe propeller-shaft is formed with a' crank, c, and is driven by al connecting? rod, kb, having a hoop, c, which 'tsjin' an eccentric, d, the centre of the shaft e of the said eccentric-being eoinf cident with the-centre upon which the hinged lframeJ C vihrates, so that it will be possible tn raise orlower the propeller-while connected by a rigidrod. Y 4

The shaft e is provided with a crank, f, by which it is 'connectedv with the'power in-the ship, orfor the crank u. belt-wheel or pulley or toothed wheel may be substituted, as vwill be obvious.

I claim as new, and desire to secure by Letters Patent 1 The application of. thehelical `Propellers B Bte the sides of a vessel, by vmeansof a hinged fraaie; C C, in

combination' with a suitable mechanism for actuating said propellers, the latter having no' conuectionffwith the vessel below the water-line, and the entire apparatus being made capable of being elevatedand turned upagainst` the side of the vessel, and out of water when not required for'use, substantially as and for the purpose specified.

` The abovespeciication of my invention signed byme, this 9th day of March, 1868, Y

v l -`ROBERT ATKIN. Witnesses:'

ALEX. F.,`Rqums, WM. F. McNamara.

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