Model Boat Mayhem
Mess Deck: General Section => Chit-Chat => Topic started by: Martin (Admin) on July 09, 2008, 10:47:11 pm
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Key Kenny, Jay! We don't need any of that fancy equipment for flood testing!
If you guys take your boats or I bring my 'Springer leak', we'd get paid to sink our models!!! {-)
Thanks Colin, Excellent!
Can I try one, an easy one to start with..... what's this?
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It's a Chinese mechanical compass!
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... I'm gonna ban gribeauval from this forum ! :'(
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OK, what was the idea behind this device?
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Variable pitch prop?
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Vertically feathering paddle wheel blades?
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"Vertically feathering paddle wheel blades? "
Yes, why?
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for vessels sailing on waters of restricted width, such as canals/
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To reduce drag on the upper blades in heavy seas ?
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Yes to do with drag......
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High speed paddle wheels??
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Used to produce flow in the test tank?
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(http://www.modelboatmayhem.co.uk/Gallery/Science_Museum/images/SML_435.jpg)
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Ok Cool. Can anyone guess what this is? :D Cheers Walter
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Is it an air pump for the old fashioned deep sea diving suit??????
Mark.
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Yes! Very good Mark O0 This is the air pump that was used to salvage the Swedish Warship Wasa :) Cheers Walter
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What was this contraption used for (apart from obtaining confessions :D :D :D)
Mark.
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Tanning industry ? stretching leather
Proteus
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no not even warm
mark
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Is it something to do with the woolen industry ? :-\
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its a contraption bry young made for stretching his sea yarns O0 {-) {-) {-) {-) :angel:
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Nope................ A clue, it is something nautical......................
Mark.
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Something to do with Fishing? Off a trawler?
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Nope.......... Good one this ain't it O0 O0 O0
Will give another clue later...........Keep guessing.
Mark.
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Mark,
That is sooooooooo simple.
Its Angies threat for you to fix her car on time!!
Bob
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A machine for making deck caulking?
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Angie liked that idea.........Cheers mate!!
But you are wrong.............
Mark.
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Nope Barry..............
Mark.
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Something to do with rope making?
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Nope...............Would you like a clue.
Mark.
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Think we deserve a clue before I ask Angie VERY nicely to try it out on YOU!!
Bob
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Is it used for punching holes in something ? :-\
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A whales tail clamp.
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Getting very close Richard..................But punching holes in what????????
Mark.
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Leather or canvas?
Bob
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Nope Bob.......
Mark.
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Punching the bladders in Bladder Wrack? Or deflating the pompous?
Is it well worn or were the holes random?
Roger in France.
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Dear Mark,
The studs don't seem evenly spaced so it can only be assumed there are some missing or rusted away.
Is it for punching copper sheet for 'copper bottoming' - viz., making holes ready for copper nails?
Regards, Bernard
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It's a very old machine and some of the the studs are missing but you have got it right Bernard well done mate O0 O0 O0 O0 O0
here is the link to the page, it is near the bottom http://www.mainemaritimemuseum.org/what_to_see/notes_from_the_orlop.php?orlop_note_id=1&page_function=detail
Mark.
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its a contraption bry young made for stretching his sea yarns O0 {-) {-) {-) {-) :angel:
Am I stretching Brian? If I could reach your nose I'd tweak it. But then I'd be tossed into the pond. I'll find another way!
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Premier Inns latest trouser press!!? As recommended by Lenny Henry! :D
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LOL Good God ya got me :D It does have a large handle suggesting that what ever it punctures must be pretty tough.....Walter
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An new item for the list. Just used these today on a boat. What are they and, for bonus points, how do you use them.
John (oldiron)
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Scale rules?
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Dip stick - though not G Brown {-) {-) - for measuring the depth of water in your bilge?
Malc
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Nice try, but not quite...........on both counts
John
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It's hard to tell from the photo, how long are those sticks?
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As the markings, even if not the stick, are symetrical I would guess they are used for measuring spans.
So could be measuring/identifying the size of a barrel or other container.
Or for marking out or profiling a curve or other pattern: perhaps.
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Something to set up sails or rigging?
Brian
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Getting warm on measuring spans, but nothing to do with sails, although a vessel's power plant does enter into the riddle. Check the lettering on the top of the right hand sticks for a clue.
John
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It's hard to tell from the photo, how long are those sticks?
The sticks are in the order of 20" long, however, their length in itself is not a primary give away as to their use. The markings can offer a clue because their size is specific to teir use.
John
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Are these sticks anything to do with setting up the valve-timing on a Steam Engine? Or a Steam Wear's pump?
aye
john e
bluebird
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Are these sticks anything to do with setting up the valve-timing on a Steam Engine? Or a Steam Wear's pump?
aye
john e
bluebird
BINGO!! Good man, you obviously know your steam engines.
For those still not sure, valves on a multiple cylinder steam engine do not always have valve setting ports. The particular one I work on is a case inpoint. In order to tell where the valve lands are in relation to the steam chest ports you have to make "valve setting sticks" that duplicate the relation ship between the two components to allow you to visually see where the valve stops in relationship to the steam chest ports. The valve setting sticks provide this visual relation ship.
The sticks with the four black lands represent the steam chest, the sticks with two lands represent the valves. The two sticks on the right are for the Intermediate Pressure valve (on a triple expansion engine), while the two on the right are for the high pressure valve. Both valves are piston valves. The LP on this engine is a slide valve.
John
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In order to use the sticks, the valve covers are removed, and the valve land stick is placed on top the appropriate valve, the steam chest stick is placed on the top surface of the steam chest where the valve cover bolts on. The two sticks are placed next to each other for readings. An able helper turns over the engine , by hand in our case, from TDC to BDC while the valve position relative to the steam chest ports is checked for correct timing.
John
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Hi ya there Oldiron
I had to stir the memory and move the grey matter about - :D - because years ago I worked in a Factory which had large Scotch Boilers. It had Wear Pumps to fill the header tanks and also it had a Stand-by Steam Pump - a twin-cylinder one for hot water circulation through the presses. Every year the above had an annual service. I used to go out of my way to ensure I worked with a guy / fitter who used to service them.
Harry, a mine of information, with regard to anything which was to do with steam engines - he served his time at the North East/Gateshead Railway repair shops working on the steam locos.
Harry was the guy who showed me the trick with the measuring sticks - use a similar system for setting up the valve strokes on the Wear Pump. The last thing he was showing me was the overhaul procedure for boiler injectors. Sadly, he took ill though before I could learn any more from him.
aye
john e
bluebird
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Hi ya there Oldiron
I had to stir the memory and move the grey matter about - :D - because years ago I worked in a Factory which had large Scotch Boilers. It had Wear Pumps to fill the header tanks and also it had a Stand-by Steam Pump - a twin-cylinder one for hot water circulation through the presses. Every year the above had an annual service. I used to go out of my way to ensure I worked with a guy / fitter who used to service them.
Harry, a mine of information, with regard to anything which was to do with steam engines - he served his time at the North East/Gateshead Railway repair shops working on the steam locos.
Harry was the guy who showed me the trick with the measuring sticks - use a similar system for setting up the valve strokes on the Wear Pump. The last thing he was showing me was the overhaul procedure for boiler injectors. Sadly, he took ill though before I could learn any more from him.
aye
john e
bluebird
You had a rare treat to be able to learn off someone like that. People who used to , how the kids say, do "old school" maintenance are getting few and far between. i'd love to be able to work with some of them to pick a few more tid bits of information, they are skills that will eventually be lost.
John