Loading of all deadweight Cargoes

[happy daze john in oz]

Only time I have used a hydrometer was to measure the strength of some grog, thought that was the best use for it.

[j.sabourn]

Had a set of Drinking Glasses once, with plimsoll marks on the side. the bottom mark was apprentices . then ordinary seamen then ABs then Pigs and the deck line the top was shipmasters. Don't know whatever happened to them probably stolen at some party or other. JS

[John Arton]

#16... John was the ventura fitting also part of the statutory instruments as well as the likes of the Hydrometer, Line Throwing Apparatus, Rockets and flares and may more. Cheers JS

John S
Sorry mate you have me there, no idea what the ventura fitting is. There is a venturi effect that can create a suction in a pipe and also there is a venturi mask that is used to supply controlled oxygen to a patient.
rgds
JA

[Ivan Cloherty]

Was the Ventura fitting the pipe fitted at 15 degrees on aft end of bridge wing where-in rockets were placed prior to igniting

[Captain Kong]

I found this regarding the Venturi or Ventura.
.#
Differential pressure[edit]

Main article: Pressure head

As fluid flows through a venturi, the expansion and compression of the fluids cause the pressure inside the venturi to change. This principle can be used in metrology for gauges calibrated for differential pressures. This type of pressure measurement may be more convenient, for example, to measure fuel or combustion pressures in jet or rocket engines. The first large-scale Venturi meters to measure liquid flows were developed by Clemens Herschel who used them to measure small and large flows of water and wastewater beginning at the end of the 19th century.[3]

Examples[edit]

The Venturi effect may be observed or used in the following:
Cargo eductors on oil product and chemical ship tankers
Inspirators that mix air and flammable gas in grills, gas stoves, Bunsen burners and airbrushes
Water aspirators that produce a partial vacuum using the kinetic energy from the faucet water pressure
Steam siphons using the kinetic energy from the steam pressure to create a partial vacuum
Atomizers that disperse perfume or spray paint (i.e. from a spray gun).
Carburetors that use the effect to suck gasoline into an engine's intake air stream
Wine aerators, used to infuse air into wine as it is poured into a glass
The capillaries of the human circulatory system, where it indicates aortic regurgitation
Aortic insufficiency is a chronic heart condition that occurs when the aortic valve's initial large stroke volume is released and the Venturi effect draws the walls together, which obstructs blood flow, which leads to a Pulsus Bisferiens.
Protein skimmers (filtration devices for saltwater aquaria)
In automated pool cleaners that use pressure-side water flow to collect sediment and debris
In coffee dispensers, whose fullness indicator tube momentarily falls when coffee is dispensed
The barrel of the modern-day clarinet, which uses a reverse taper to speed the air down the tube, enabling better tone, response and intonation
Compressed air operated industrial vacuum cleaners
Venturi scrubbers used to clean flue gas emissions
Injectors (also called ejectors) used to add chlorine gas to water treatment chlorination systems
Steam injectors use the Venturi effect and the latent heat of evaporation to deliver feed water to a steam locomotive boiler.
Sand blasters used to draw fine sand in and mix it with air
Emptying bilge water from a moving boat through a small waste gate in the hull—the air pressure inside the moving boat is greater than the water sliding by beneath
A scuba diving regulator to assist the flow of air once it starts flowing
In recoilless rifles to decrease the recoil of firing
Ventilators
The diffuser on an automobile
Large cities where wind is forced between buildings - the gap between the Twin Towers of the original World Trade Center was an extreme example of the pheonomenon, which made the ground level plaza notoriously windswept.[4] In fact, some gusts were so high that pedestrian travel had to be aided by ropes.[5]
In windy mountain passes, resulting in erroneous pressure altimeter readings[6]
The leadpipe of a trombone, affecting the timbre
Foam proportioners used to induct fire fighting foam concentrate into fire protection systems

The Bernoulli Principle and its corollary, the Venturi effect, are essential to aerodynamic as well as hydrodynamic design concepts. Airfoil and hydrofoil designs to lift and steer air and water vessels (airplanes, ships and submarines) are derived from applications of the Bernouoli Principle and the Venturi effect, as are the instruments that measure rate of movement through the air or water (velocity indicators). Stability indication and control mechanisms such as gyroscopic altitude indicators and fuel metering devices, such as carburetors, function as a result of gas or fluid pressure differentials that create suction as demonstrated and measurable by gas/fluid pressure and velocity equations derived from the Bernoulli Principle and the Venturi Effect.

[Captain Kong]

When I was in ESSO I invented the APE.
Aspinall Patent Eductor.
.
On discharging a tank, especially a Petrol cargo the last draining's do not come out with the usual cargo pumps.
This makes Tank cleaning very difficult and a long time wasting event. holding up the ship for a long period until the tank was clean and also the atmosphere When back loading Diesel, DFO. due to contamination.

It was a `Y` shaped tube with a water hose fitting, as water was pumped through the straight part of the tube a hose on the other one had a hose and this became the suction. and so every drop of petrol could be removed from the tank bottom before tank washing began..
I experimented with this on one Product tanker and it worked, Turn around time was increased tremendously, every tank after a petrol cargo had to be gas free and it was an extremely difficult operation to do that with just the tiniest bit of petrol on the bottom on the tank. cleaning and gas freeing was very successful in saving many many hours of gas freeing.and so every tanker was fitted with it as a permanent fixture as they did their dry docks. This saved the company several millions of pounds per year after that.
I never got paid one penny for the invention.
Cheers
Brian.

[cappy]

When I was in ESSO I invented the APE.
Aspinall Patent Eductor.
.
On discharging a tank, especially a Petrol cargo the last draining's do not come out with the usual cargo pumps.
This makes Tank cleaning very difficult and a long time wasting event. holding up the ship for a long period until the tank was clean and also the atmosphere When back loading Diesel, DFO. due to contamination.

It was a `Y` shaped tube with a water hose fitting, as water was pumped through the straight part of the tube a hose on the other one had a hose and this became the suction. and so every drop of petrol could be removed from the tank bottom before tank washing began..
I experimented with this on one Product tanker and it worked, Turn around time was increased tremendously, every tank after a petrol cargo had to be gas free and it was an extremely difficult operation to do that with just the tiniest bit of petrol on the bottom on the tank. cleaning and gas freeing was very successful in saving many many hours of gas freeing.and so every tanker was fitted with it as a permanent fixture as they did their dry docks. This saved the company several millions of pounds per year after that.
I never got paid one penny for the invention.
Cheers
Brian.

####take a patent out even today brian ......then they must pay to use it ......although they would probably change it simply and patent it themselves....lol cappy

[Captain Kong]

Hi Cappy,
that was in 1984, 31 years ago,
I cannot complain , ESSO made me a lot of Big Money, and I mean BIG,
Same as everyone who worked for them.
Cheers
Brian

[j.sabourn]

#24... Would maybe have found it in Alladins cave or the Bosuns store Ivan. Was slightly bigger than a Fire nozzle , and had two connections for fitting hoses. Could be used as a weak type of salvage pump for pumping out a bilge or whatever, by passing water through under pressure caused a suction effect on the end which was down the bilge, and in some cases could cut out the use of buckets and bailing out. An engineer would probably have known right away as no doubt a similar system will be fitted to various parts in the engine room. The other end of the other hose being put in someones port or over the side. JS PS See Brian has already got there and invented something similar. Cheers JS

[Captain Kong]

That was the Y fitting that I used John
an educator.
Cheers
Brian