US70101A - John marquis - Google Patents

Description

@uiten tatrs'atmt @fitug IMPROVED SIPHON PROPELLBR.

@te .tlgehule referat tu in tigers Enters @tout mit .mailling pnt nf tige sume.

TO ALL WHOM IT MAY CONCERN:

Be it knownthat I, JOHN MARQUIS, of San Erancisco, county of San Francisco, State of California, have invented a new' Siphon Steam-Vessel; and I do hereby declare the followingdescription andv accompanying drawings 'are suicient to enable any person skilled in the art or science to which it most nearly appertains to make and use my said invention without further invention or experiment.

The nature ofV my invention is to provide the means of propelling a vessel through the water without the aid of'the ordinary steam engine, paddles, and machinery nowin use; and consists in elevatingthe water to a certain height above the water line of the vessel, and allowing it to descend upon the surface of the wat-er. in which the vessel iioats'. Y p i 1 l,

In order to accomplish this employ a steam-Siphon, consistingoffa pipe? placed transversely across the vessel abaft of amidships, with radial arms attached at each end,` and extending down upon each side of the vessel to near the surface of the water. A vertical pipe is attached to the transverse pipe near the centre, a'nd descends to the water through the vessel, passing through an inverted trough above the keel, an opening or well being made in the bottom of the vessel corresponding to the size of that ofthe trough. In front of the vertical pipe is placedthe engine and boiler for steam or hot` air of sutlicient capacity-for operating the siphon. A small pipe leads frornthe boiler or hot-'air chamber ofthe engine to the vertical pipe, regulated by a valve or valves. The vacuum created will raise the water to the desired height, and it will descend in the opposite direction by gravity with a force equal to its height and velocity. Referring to the drawings to more fully illustrate and describe my inventioni Fgurel is a side elevation with section removed.

Figure 2, a plan.

Figure 3, an end section. i

Similar letters' indicate like parts in each of the figures. v 1

A represents a boiler, having a steam-drum, B, placed above it. C, smoke-stack. D represents the steam- Siphon, having discharge branch pipes EE2 E3 Ei, which should be provided with proper sluice-gates or valves, so-as to turn the. water in either direction for backing or propelling the vessel. F is'a steam or hotair pipe, Vleading from the boiler to the .Siphon D, which may enter it at any height or in any position, according to the elevation desired. l

o I am aware that other means have been employed for hydraulic propulsion, as, for instance, in the trial ofv the jet on board ofthe English steamer Water-Witch, in which an engine of one hundred and sixty horse-power was employed, which, by the aid of a large 'turbine water-wheel, sucked in and ejected three hundred tous of. water per minute.

It is proposed in the use of my invention to substitute for the engine and turbine-wheel a steam-siphon-` pump, to be worked by a jet of steam, thereby saving the space occupied by the engineand turbine-wheel for passengers and freight. That this can be done will be seen by the following calculation, which shows the power with which the three hundred tons of water per minute are ejected from the nozzle ofthe pipes employed, reckoning the tonat twothousand pounds. `We have 300 tons of water X2,000= 600,000 pounds X 9=5,400,000+ 33,000=163 horse-power. From this we draw the conclusion that it requires one hundred and sixty-three horsepower ito raise three hundred tons of water (9) nine feet, andthe pressure due to the power and velocity expendedinraising the water is equivalent to the power with which the water is propelled from the sides of the boat, that is to say, the water is propelled with a force that would raise it nine (9) feet, and 'if we acquire this elevation above the water line on boa-rd a vessel by means `of a steam-Siphon, the fall of water from this height will be as above, or 300 tons X2,000=600,000 pounds 9 feet perpendicular descent=5,400,000-:

33,000: 163 horse-power. It may be necessary to admit air at the top of the discharge pipes and allow the natural flow of the water, if it is`not found desirable to use the atmospheric pressure caused by the Siphon.

In the above calculation no account is taken of the loss by friction, which I am `fully persuaded will not be great. i

The height to which I wish -to raise the water will depend on the fall I wish to get.

I am aware also that attempts have been made toipropel vessels' by means of pipes placed in the boatthori zontal with the water line,;and"below the surface, having openings near the bow and at the stern opening of the pipes, running entirely through the boat, the arrangement of these pipes being the same as the steam-Siphon. This was done under a false conception and application of the philosophy of the working of thesiphon. Itis true the steam-siphonwill work placed in this manner, but the rush of water into the suction pipes in its ejection from the discharge pipe has no eiect in propelling the boat, as there was no connection with it, but-merely a rush of water through the pipes. Thisarrangement might be represeiited by a boat having pipes through it, as described, and placed in a supplied current, and the Water flowing,` through would be expected to force the boat up stream. The only power that can be obtained in this Way is the force of the steanr which is used to cause the vacuum, and only in proportion tothe size of the jet of steam do we realize power, as if this were the cylinder-head.

New, if water is raised on the boat, and by some means ejected, either by another Siphon-pump or by its own weight and Yelocity upon a body of water, (the water having some connection with the boat,) itwill propel it as the sky-rocket is propelled by the explosion from one endrwhileby the former mode, above described, the boat would represent a rocket with both ends open.V Again, if two siphons are employed, and with one water is drawn into a tank or well in the boat, and with the other withdrawn-from thisA tank and ejected from the boat, then, in that case, the boat would move through the water with a power in .proportion as'the water is expelled from theboat. I i

The: discharge pipes may be placed at any angle desired, or be-attached so as to cause the water to fall per pendicularly to near their ends, and turn with a curve, so as to eject the water nearly horizontal with the water line. But I consider the angle of forty-five degrees with the water line, as shown, the best inelinationto obtain the largest percentage of power, The weight 4of the water which is constantly passing down the'inc'line branch .pipes may also-be found to have a beneci'al effect toward the propulsion of the vessel by its reaction.

My siphon is constructedon the same principle as those in use for bilge-pumps, .and may be provided with gates to shut the wterfrom the well, and openings with gates or sluiee-valves that I'nay be opened to pump the water from the vessel in ease of disaster fromleakage.

Having thus described my invention, what I claim, and desire to seeurebylietters Patent, .is--

The propelling of a 'vessel by-water raised to any height that can be acquired by means of a steam or hotA air siphon, or its' equivalent, the fall of the water from this height being the propelling power, either by its own 'weight arid velocity, or pressure, substantially as described. i e

In Witness whereof I have hereunto set my hand and seal'. l `JOHN MARQUIS. [L S.]

Witnesses:

C. W. M. SMITH, GEO. H. STRONG.

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