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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Compound pulleys....
Awl --
I made a setup of double compounds pulleys (National brand), with one block having 2 sheaves side-by-side (one axle), and the other block similar. Thus, 4 ropes are traveling between the two. There is a considerable length of rope between the two blocks, on the order of 4 feet. The Q is: How to keep these ropes from twisting around each other? When the ropes twist around each other, very high friction results. One block is fixed, the other travels, so I suppose the traveling block could have its axle extended on both sides, and run through some kind of channel/guide. That's the only answer I see. Unless it's the rope I'm using that's causing problems, and mebbe aircraft cable would be better behaved. Idears? -- EA |
#2
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Compound pulleys....
On Aug 20, 9:19*pm, "Existential Angst" wrote:
Awl -- I made a setup of double compounds pulleys (National brand), with one block having 2 sheaves side-by-side (one axle), and the other block similar. Thus, 4 ropes are traveling between the two. * There is a considerable length of rope between the two blocks, on the order of 4 feet. The Q is: * How to keep these ropes from twisting around each other? When the ropes twist around each other, very high friction results. One block is fixed, the other travels, so I suppose the traveling block could have its axle extended on both sides, and run through some kind of channel/guide. *That's the only answer I see. Unless it's the rope I'm using that's causing problems, and mebbe aircraft cable would be better behaved. Idears? -- EA Use braided rope. jsw |
#3
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Compound pulleys....
On Fri, 20 Aug 2010 19:20:20 -0700 (PDT), Jim Wilkins
wrote: On Aug 20, 9:19*pm, "Existential Angst" wrote: Awl -- I made a setup of double compounds pulleys (National brand), with one block having 2 sheaves side-by-side (one axle), and the other block similar. Thus, 4 ropes are traveling between the two. * There is a considerable length of rope between the two blocks, on the order of 4 feet. The Q is: * How to keep these ropes from twisting around each other? When the ropes twist around each other, very high friction results. One block is fixed, the other travels, so I suppose the traveling block could have its axle extended on both sides, and run through some kind of channel/guide. *That's the only answer I see. Unless it's the rope I'm using that's causing problems, and mebbe aircraft cable would be better behaved. Idears? -- EA Use braided rope. jsw Ayup. The layup causes it to lay flat and even, rather than trying to corkscrew out of the blocks. Thats why sailors only use braided rope. -- "First Law of Leftist Debate The more you present a leftist with factual evidence that is counter to his preconceived world view and the more difficult it becomes for him to refute it without losing face the chance of him calling you a racist, bigot, homophobe approaches infinity. This is despite the thread you are in having not mentioned race or sexual preference in any way that is relevant to the subject." Grey Ghost |
#4
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Compound pulleys....
On Aug 20, 10:20*pm, Jim Wilkins wrote:
On Aug 20, 9:19*pm, "Existential Angst" wrote: ... The Q is: * How to keep these ropes from twisting around each other? When the ropes twist around each other, very high friction results. ... EA Use braided rope. jsw Braided polyester is easier to handle than nylon and plenty strong if large enough to grip well, like 8 - 11mm. Cotton-over-synthetic sash cord is even easier to handle but doesn't last as long outdoors. Around here I consider 10 - 15 years it's limit for pulleys left out in the weather, then it becomes tarp tiedowns etc. A flaw in the sheathing causes a jam. It eventually falls apart into frizz rather than breaking. jsw |
#5
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Compound pulleys....
"Existential Angst" wrote in message ... Awl -- I made a setup of double compounds pulleys (National brand), with one block having 2 sheaves side-by-side (one axle), and the other block similar. Thus, 4 ropes are traveling between the two. There is a considerable length of rope between the two blocks, on the order of 4 feet. The Q is: How to keep these ropes from twisting around each other? When the ropes twist around each other, very high friction results. One block is fixed, the other travels, so I suppose the traveling block could have its axle extended on both sides, and run through some kind of channel/guide. That's the only answer I see. Unless it's the rope I'm using that's causing problems, and mebbe aircraft cable would be better behaved. Idears? -- EA You can hang it all up, get it all pretty and straight, and come back in the morning, and it will be twisted from moisture getting into the rope. Some ropes worse than others, particularly manila and sisal. As suggested, use braided rope. Steve visit my blog at http://cabgbypasssurgery.com |
#6
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Compound pulleys....
On Aug 21, 9:05*am, "Existential Angst" wrote:
"Jim Wilkins" wrote in message ... On Aug 20, 10:20 pm, Jim Wilkins wrote: On Aug 20, 9:19 pm, "Existential Angst" wrote: ... The Q is: How to keep these ropes from twisting around each other? When the ropes twist around each other, very high friction results. ... EA Use braided rope. jsw Braided polyester is easier to handle than nylon and plenty strong if large enough to grip well, like 8 - 11mm. ... What about plastic-covered aircraft cable (1/8")? *Or non-covered? Now I'm using what I think is a yellow polyester *twisted* *rope-ish ditty, which readily untwists, it seems. *Kinda cheap, it seems, just sorta had it around. -- EA PolyESTER, not polypropylene, the cheap slippery yellow boating stuff. Polyester looks and feels like mountaineering kernmantle. Braided nylon is OK but more likely to burn your hands with a heavy load. Sash cord is very nice, clothesline is a poorer, stiffer alternative. I used uncoated 1/16" steel cable on the upper part of my chimney cleaning brush system, as every part near the top is metal. The end I pull on is rope, try yanking on steel cable and you will learn why. It unwinds under load like twisted rope. Coated wire can jam in the pulley when the coating wears through or breaks. jsw |
#7
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Compound pulleys....
Gunner Asch wrote:
Ayup. The layup causes it to lay flat and even, rather than trying to corkscrew out of the blocks. Thats why sailors only use braided rope. Aren't those called "lines" or "hawsers". ???? :-) ...lew... |
#8
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Compound pulleys....
On 8/22/2010 10:54 AM, Lewis Hartswick wrote:
Gunner Asch wrote: Ayup. The layup causes it to lay flat and even, rather than trying to corkscrew out of the blocks. Thats why sailors only use braided rope. Aren't those called "lines" or "hawsers". ???? :-) ...lew... The material is rope. Made up for a particular purpose it becomes a line. A hawser is a line made up for mooring or towing. |
#9
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Compound pulleys....
On Aug 22, 10:54*am, Lewis Hartswick wrote:
Gunner Asch wrote: ... Thats why sailors only use braided rope. Aren't those called "lines" or "hawsers". ???? *:-) * * ...lew... Perhaps they are at West Marine. Try asking for braided line, sheet or hawser in Home Depot. jsw |
#10
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Compound pulleys....
In article ,
Jim Wilkins wrote: On Aug 22, 10:54*am, Lewis Hartswick wrote: Gunner Asch wrote: ... Thats why sailors only use braided rope. Aren't those called "lines" or "hawsers". ???? *:-) * * ...lew... Perhaps they are at West Marine. Try asking for braided line, sheet or hawser in Home Depot. Which should tell you something. I made the mistake of buying some nylon rope there. It was good for nothing except decoration, and twisted badly upon load. Completely useless for use in a block and tackle. Even if the humidity didn't change. Replaced it with real kernmantle line from West Marine. Joe Gwinn |
#11
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Compound pulleys....
Jim Wilkins wrote:
On Aug 22, 10:54 am, Lewis Hartswick wrote: Gunner Asch wrote: ... Thats why sailors only use braided rope. Aren't those called "lines" or "hawsers". ???? :-) ...lew... Perhaps they are at West Marine. Try asking for braided line, sheet or hawser in Home Depot. jsw I doubt a REAL sailor would be looking at Home Depot. :-) ...lew... |
#12
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Compound pulleys....
"Steve B" wrote in
: "Existential Angst" wrote in message ... Awl -- I made a setup of double compounds pulleys (National brand), with one block having 2 sheaves side-by-side (one axle), and the other block similar. Thus, 4 ropes are traveling between the two. There is a considerable length of rope between the two blocks, on the order of 4 feet. The Q is: How to keep these ropes from twisting around each other? When the ropes twist around each other, very high friction results. Something else you can try is reeving the blocks at a right angle to each other, that is, if you look at the blocks when you reeve them one block should have the sides of the sheaves showing and the other should have the grooves showing. Doing it this way, called "right angle reeving" reduces the side friction on the rope crossing over to the other side of the block. There are multiple google diagrams. |
#13
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Compound pulleys....
On Aug 23, 9:56*am, Lewis Hartswick wrote:
Jim Wilkins wrote: On Aug 22, 10:54 am, Lewis Hartswick wrote: Gunner Asch wrote: ... Thats why sailors only use braided rope. Aren't those called "lines" or "hawsers". ???? *:-) * * ...lew... Perhaps they are at West Marine. Try asking for braided line, sheet or hawser in Home Depot. jsw I doubt a REAL sailor would be looking at Home Depot. :-) * * ...lew... Or asking for a solution to EA's problem. I have to be pretty desperate to pay West Marine's prices, though HD's are creeping up there. The last 1/2" x 100' braided nylon rope I bought came from a True Value store. Two days later it was packed with deep-woods mud and I was really glad for buying it, and a few of these: http://cgi.ebay.com/ebaymotors/ws/eB...5341&viewitem= jsw |
#14
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Compound pulleys....
On Mon, 23 Aug 2010 07:56:28 -0600, Lewis Hartswick
wrote: Jim Wilkins wrote: On Aug 22, 10:54 am, Lewis Hartswick wrote: Gunner Asch wrote: ... Thats why sailors only use braided rope. Aren't those called "lines" or "hawsers". ???? :-) ...lew... Perhaps they are at West Marine. Try asking for braided line, sheet or hawser in Home Depot. jsw I doubt a REAL sailor would be looking at Home Depot. :-) ...lew... Blink blink...several of my sail boats have SS hardware purchased from Home Despot. Somethings they sell are ok for marine work..and a hell of a lot cheaper than at the marine places (least around here) Rope isnt one of them. Gunner I am the Sword of my Family and the Shield of my Nation. If sent, I will crush everything you have built, burn everything you love, and kill every one of you. (Hebrew quote) |
#15
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Compound pulleys....
On Mon, 23 Aug 2010 13:27:10 -0700, Gunner Asch
wrote: On Mon, 23 Aug 2010 07:56:28 -0600, Lewis Hartswick wrote: Jim Wilkins wrote: On Aug 22, 10:54 am, Lewis Hartswick wrote: Gunner Asch wrote: ... Thats why sailors only use braided rope. Aren't those called "lines" or "hawsers". ???? :-) ...lew... Perhaps they are at West Marine. Try asking for braided line, sheet or hawser in Home Depot. jsw I doubt a REAL sailor would be looking at Home Depot. :-) ...lew... Blink blink...several of my sail boats have SS hardware purchased from Home Despot. Somethings they sell are ok for marine work..and a hell of a lot cheaper than at the marine places (least around here) Rope isnt one of them. Gunner I am the Sword of my Family and the Shield of my Nation. If sent, I will crush everything you have built, burn everything you love, and kill every one of you. (Hebrew quote) What the hell's a real sailor anyway? Read Robb White's take on things "marine". http://www.robbwhite.com/rescue.minor.machinery.html Not saying I'd do it the same. I'm considering building a Rescue Minor primarily for my wife, who loves to fish skinny water. For her, I think I'll stick with a gearbox instead of Robb's floppy motor mounts if just for a reasonable reverse. Pete Keillor |
#16
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Compound pulleys....
Pete Keillor fired this volley in
: What the hell's a real sailor anyway? A sailor is someone who calls twisted wire thingies "rope", and who calls twisted fiber thingies "line" or "hawsers"; And ne'er the twain shall meet. LLoyd |
#17
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Compound pulleys....
On Mon, 23 Aug 2010 19:38:12 -0500, "Lloyd E. Sponenburgh"
lloydspinsidemindspring.com wrote: Pete Keillor fired this volley in : What the hell's a real sailor anyway? A sailor is someone who calls twisted wire thingies "rope", and who calls twisted fiber thingies "line" or "hawsers"; And ne'er the twain shall meet. LLoyd Or sheets, outhauls, halyards, etc. depending on function. I've never used hawser, considering that a towline or mooring line for a ship, not the size of boats I'm interested in. And I refer to a nylon anchor rode as rope. I don't currently have a sailboat, and when I did, my only wire was standing rigging. I've known "sailors" who called out "ready about -- hard alee" when coming about, then tossed their cookies in a little chop. But man, they looked good in the topsiders and khakis. Using any terminology has its place to provide good communications and avoid confusion. Overuse to prove you're among the chosen generally leads to miscommunication, more often than not. Pete Keillor |
#18
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Compound pulleys....
"Pete Keillor" wrote in message ... On Mon, 23 Aug 2010 19:38:12 -0500, "Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote: Pete Keillor fired this volley in m: What the hell's a real sailor anyway? A sailor is someone who calls twisted wire thingies "rope", and who calls twisted fiber thingies "line" or "hawsers"; And ne'er the twain shall meet. LLoyd Or sheets, outhauls, halyards, etc. depending on function. I've never used hawser, considering that a towline or mooring line for a ship, not the size of boats I'm interested in. And I refer to a nylon anchor rode as rope. I don't currently have a sailboat, and when I did, my only wire was standing rigging. I've known "sailors" who called out "ready about -- hard alee" when coming about, then tossed their cookies in a little chop. But man, they looked good in the topsiders and khakis. Using any terminology has its place to provide good communications and avoid confusion. Overuse to prove you're among the chosen generally leads to miscommunication, more often than not. Pete Keillor If you ever sail on a team (I did), you'd better use the right jargon. If you call a rode a "rope," you're going to get a double-take and maybe hit something as your crew wonders what you mean. I'm anti-jargon, in general, but this is one place where it matters if you're using the right word. Rope is the material from which lines are made. Lines are *pieces* of rope which are made to be fastened to the boat at one end or both. There are no "ropes" on a boat, but there may be rope in the locker. My vague recollection is that the definitions of "rope" and "line" have changed over the centuries, but I was too young then to be sure. d8-) -- Ed Huntress |
#19
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Compound pulleys....
Ed Huntress wrote:
If you ever sail on a team (I did), you'd better use the right jargon. If you call a rode a "rope," you're going to get a double-take and maybe hit something as your crew wonders what you mean. I'm anti-jargon, in general, but this is one place where it matters if you're using the right word. Rope is the material from which lines are made. Lines are *pieces* of rope which are made to be fastened to the boat at one end or both. There are no "ropes" on a boat, but there may be rope in the locker. My vague recollection is that the definitions of "rope" and "line" have changed over the centuries, but I was too young then to be sure. d8-) Bless you, Ed. For a moment I thought they were picking one me (again) -- Richard Lamb |
#20
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Compound pulleys....
"cavelamb" wrote in message news Ed Huntress wrote: If you ever sail on a team (I did), you'd better use the right jargon. If you call a rode a "rope," you're going to get a double-take and maybe hit something as your crew wonders what you mean. I'm anti-jargon, in general, but this is one place where it matters if you're using the right word. Rope is the material from which lines are made. Lines are *pieces* of rope which are made to be fastened to the boat at one end or both. There are no "ropes" on a boat, but there may be rope in the locker. My vague recollection is that the definitions of "rope" and "line" have changed over the centuries, but I was too young then to be sure. d8-) Bless you, Ed. For a moment I thought they were picking one me (again) They were. Your leg is fun to pull, Richard. Both of them, in fact. Somewhere out there may be a nitpicker, so let's point out the weird exception -- bolt ropes, which are pieces of rope sewn into the edges of a sail. The primary one is the luff rope. But those just prove the rule. They are not free "ropes," nor are they "lines." They're....bolt ropes. And many sailors call their anchor rode the "anchor rope." But just calling it a "rope," without the adjective, can lead to confusion. -- Ed Huntress -- Richard Lamb |
#21
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Compound pulleys....
Thats why sailors only use braided rope. Aren't those called "lines" or "hawsers". ???? :-) IIRC, and from my knowledge, a hawser is any line that is more than 4" in diameter. A rope is a length of line that has been cut to a specific length for a specific use. A line is a length of rope that is uncut and on a spool. Steve, a very old rigger. |
#22
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Compound pulleys....
"Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message . 3.70... Pete Keillor fired this volley in : What the hell's a real sailor anyway? A sailor is someone who calls twisted wire thingies "rope", and who calls twisted fiber thingies "line" or "hawsers"; And ne'er the twain shall meet. LLoyd Such use of terms would indicate a heretic or a landlubber, not a sailor. A sailor would never use such terms. Steve |
#23
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Compound pulleys....
"Pete Keillor" wrote Using any terminology has its place to provide good communications and avoid confusion. Overuse to prove you're among the chosen generally leads to miscommunication, more often than not. Pete Keillor And if you're a pro, you call it what it is. Just as in machinist terminology, weldor terminology, etc. All others are hackers or wannabes. Steve |
#24
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Compound pulleys....
Ed Huntress wrote:
"cavelamb" wrote in message news Ed Huntress wrote: If you ever sail on a team (I did), you'd better use the right jargon. If you call a rode a "rope," you're going to get a double-take and maybe hit something as your crew wonders what you mean. I'm anti-jargon, in general, but this is one place where it matters if you're using the right word. Rope is the material from which lines are made. Lines are *pieces* of rope which are made to be fastened to the boat at one end or both. There are no "ropes" on a boat, but there may be rope in the locker. My vague recollection is that the definitions of "rope" and "line" have changed over the centuries, but I was too young then to be sure. d8-) Bless you, Ed. For a moment I thought they were picking one me (again) They were. Your leg is fun to pull, Richard. Both of them, in fact. Well hell, if they are going to do that, pull the middle one too! Somewhere out there may be a nitpicker, so let's point out the weird exception -- bolt ropes, which are pieces of rope sewn into the edges of a sail. The primary one is the luff rope. But those just prove the rule. They are not free "ropes," nor are they "lines." They're....bolt ropes. And many sailors call their anchor rode the "anchor rope." But just calling it a "rope," without the adjective, can lead to confusion. You left out the lifts and guys, downhauls, etc ... Whether lubbers can appreciate it or not, naming the lines by their function does make sense. Pulling the wrong line at the wrong time can be more than confusing - it can cause things to break and people get hurt. On my simple sloop, with only three sails, there are 20 control lines! Main: halyard, topping lift, sheet, vang, traveler, and 2 reefing lines Jib: halyard, furler halyard, down haul, two sheets, and the furling line. Spinnaker: halyard, down haul, two sheets, and the sock control line. Jib pole: Topping lift and guy (down haul) (I had to stop and count them up) That's just sail control and doesn't include messengers, signal lines, dock lines, mooring lines, fender tails, anchor rodes, dinghy tow, lead, towing bridle, cat o'nine tails, and the Saturday night bondage stuff... And yes, the standing rigging is all stainless steel wire rope. So no, I don't think it's jargon. It's simply, "knowing the ropes"... -- Richard Lamb |
#25
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Compound pulleys....
On Aug 23, 10:32*pm, "Ed Huntress" wrote:
... Somewhere out there may be a nitpicker, so let's point out the weird exception -- bolt ropes, which are pieces of rope sewn into the edges of a sail. The primary one is the luff rope. ... Ed Huntress Rogue and pedant that am I, man-ropes are hand or foot rails. Hardware store rope: http://www.lehighgroup.com/fiber.htm 3/8" braided polyester rope: http://www.lowes.com/pd_102467-258-0...54_4294937087? productId=3110257&pl=1¤tURL=/pl__4294856654_4294937087_? identifier= The working load is relatively low but enough for a line you pull on. It's fairly easy on the hands and doesn't twist when loaded. jsw |
#26
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On 8/23/2010 11:48 PM, Steve B wrote:
Thats why sailors only use braided rope. Aren't those called "lines" or "hawsers". ???? :-) IIRC, and from my knowledge, a hawser is any line that is more than 4" in diameter. A rope is a length of line that has been cut to a specific length for a specific use. A line is a length of rope that is uncut and on a spool. Steve, a very old rigger. So when you take a length of "line" off a spool, and whip one end and work a monkey-fist in the other, it becomes a "heaving rope"? Maybe among whatever crowd you serve, but it certainly doesn't in the Navy. |
#27
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On 8/23/2010 8:38 PM, Lloyd E. Sponenburgh wrote:
Pete fired this volley in : What the hell's a real sailor anyway? A sailor is someone who calls twisted wire thingies "rope", and who calls twisted fiber thingies "line" or "hawsers"; And ne'er the twain shall meet. Except when working a wire-to-rope splice. |
#28
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"J. Clarke" wrote in message ... On 8/23/2010 11:48 PM, Steve B wrote: Thats why sailors only use braided rope. Aren't those called "lines" or "hawsers". ???? :-) IIRC, and from my knowledge, a hawser is any line that is more than 4" in diameter. A rope is a length of line that has been cut to a specific length for a specific use. A line is a length of rope that is uncut and on a spool. Steve, a very old rigger. So when you take a length of "line" off a spool, and whip one end and work a monkey-fist in the other, it becomes a "heaving rope"? Maybe among whatever crowd you serve, but it certainly doesn't in the Navy. Of course not. That's backwards you silly fart. Oh, did I say that? Sorry, got it backward. Been a long time since I've been at sea. Steve |
#29
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On Mon, 23 Aug 2010 23:15:38 -0500, cavelamb
wrote: Ed Huntress wrote: "cavelamb" wrote in message news Ed Huntress wrote: If you ever sail on a team (I did), you'd better use the right jargon. If you call a rode a "rope," you're going to get a double-take and maybe hit something as your crew wonders what you mean. I'm anti-jargon, in general, but this is one place where it matters if you're using the right word. Rope is the material from which lines are made. Lines are *pieces* of rope which are made to be fastened to the boat at one end or both. There are no "ropes" on a boat, but there may be rope in the locker. My vague recollection is that the definitions of "rope" and "line" have changed over the centuries, but I was too young then to be sure. d8-) Bless you, Ed. For a moment I thought they were picking one me (again) They were. Your leg is fun to pull, Richard. Both of them, in fact. Well hell, if they are going to do that, pull the middle one too! Somewhere out there may be a nitpicker, so let's point out the weird exception -- bolt ropes, which are pieces of rope sewn into the edges of a sail. The primary one is the luff rope. But those just prove the rule. They are not free "ropes," nor are they "lines." They're....bolt ropes. And many sailors call their anchor rode the "anchor rope." But just calling it a "rope," without the adjective, can lead to confusion. You left out the lifts and guys, downhauls, etc ... Whether lubbers can appreciate it or not, naming the lines by their function does make sense. Pulling the wrong line at the wrong time can be more than confusing - it can cause things to break and people get hurt. On my simple sloop, with only three sails, there are 20 control lines! Main: halyard, topping lift, sheet, vang, traveler, and 2 reefing lines Jib: halyard, furler halyard, down haul, two sheets, and the furling line. Spinnaker: halyard, down haul, two sheets, and the sock control line. Jib pole: Topping lift and guy (down haul) Out of curiosity, what kind of furler do you have that uses a separate halyard? Usually the jib head is shackled to the upper furler bearing and a single halyard is all that's necessary. And how come a downhaul on a furler jib? Cheers, John B. (johnbslocombatgmaildotcom) |
#30
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"J. Clarke" fired this volley in
: but it certainly doesn't in the Navy. Yup. I don't really care what civilian racing sailors and riggers call the stuff; I got lectured about "the straight skinny" in the Navy. If we called it anything but what I wrote earlier (in the Navy, yes), we got some bad crap for it. LLoyd |
#31
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"J. Clarke" fired this volley in
: xcept when working a wire-to-rope splice. Yep... cept the racing sailors probably don't know the diff between a fid and a marlinspike. LLoyd |
#32
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"Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message . 3.70... "J. Clarke" fired this volley in : xcept when working a wire-to-rope splice. Yep... cept the racing sailors probably don't know the diff between a fid and a marlinspike. LLoyd Ah, yes we do. But not many of them can make a nice-looking long splice. d8-) -- Ed Huntress |
#33
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"Ed Huntress" fired this volley in news:4c73e344
: Ah, yes we do. But not many of them can make a nice-looking long splice. d8-) Funny thing, that: I haven't been sailing in any capacity in about three decades, but I still have occasion make splices, eyes, and grommets the "classic" way -- maybe because that's the best way (still) to do it. LLoyd |
#34
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"Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message . 3.70... "Ed Huntress" fired this volley in news:4c73e344 : Ah, yes we do. But not many of them can make a nice-looking long splice. d8-) Funny thing, that: I haven't been sailing in any capacity in about three decades, but I still have occasion make splices, eyes, and grommets the "classic" way -- maybe because that's the best way (still) to do it. LLoyd Splices, properly done, retain almost all of the strength of the rope. Knots don't. And splices are a lot saltier-looking. I've made a lot of eye splices in smaller (up to 5/8") rope, but I had a heck of a time making them in the 1" mooring lines for my uncle's 42-footer. My fid really was too small for the job. It took me about a week to make the whole set -- springlines, etc. I guess it takes a lot of practice to work the heavier rope. -- Ed Huntress |
#35
Posted to rec.crafts.metalworking
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Compound pulleys....
John B. slocomb wrote:
Out of curiosity, what kind of furler do you have that uses a separate halyard? Usually the jib head is shackled to the upper furler bearing and a single halyard is all that's necessary. And how come a downhaul on a furler jib? Cheers, John B. (johnbslocombatgmaildotcom) Hi John, It's a CDI, which has it's own pulley built in at the top of the foil. See page 2 for the diagram. http://www.sailcdi.com/sailpdf/FF4&6...ual%207_06.pdf That leaves both forward halyards (I have two) free for other use. The port one is the one I use for the spinnaker halyard, while starboard serves as the pole toping lift. -- Richard Lamb |
#36
Posted to rec.crafts.metalworking
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Compound pulleys....
Ed Huntress wrote:
"Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message . 3.70... "J. Clarke" fired this volley in : xcept when working a wire-to-rope splice. Yep... cept the racing sailors probably don't know the diff between a fid and a marlinspike. LLoyd Ah, yes we do. But not many of them can make a nice-looking long splice. d8-) NObody does long splices any more, Ed. Synthetics are way to slippery for that. -- Richard Lamb |
#37
Posted to rec.crafts.metalworking
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Compound pulleys....
"cavelamb" wrote in message m... Ed Huntress wrote: "Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message . 3.70... "J. Clarke" fired this volley in : xcept when working a wire-to-rope splice. Yep... cept the racing sailors probably don't know the diff between a fid and a marlinspike. LLoyd Ah, yes we do. But not many of them can make a nice-looking long splice. d8-) NObody does long splices any more, Ed. Synthetics are way to slippery for that. There are millions of long eye splices in nylon rope in New Jersey boats who haven't heard that. In fact, I've never seen one give way. For that matter, I've never seen a short eye splice, properly done, give way. As for straight long splices, I've done those a couple of times to prove I could do it, but I'd rather buy a new piece of rope. -- Ed Huntress |
#38
Posted to rec.crafts.metalworking
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Compound pulleys....
Ed Huntress wrote:
"cavelamb" wrote in message m... Ed Huntress wrote: "Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message . 3.70... "J. Clarke" fired this volley in : xcept when working a wire-to-rope splice. Yep... cept the racing sailors probably don't know the diff between a fid and a marlinspike. LLoyd Ah, yes we do. But not many of them can make a nice-looking long splice. d8-) NObody does long splices any more, Ed. Synthetics are way to slippery for that. There are millions of long eye splices in nylon rope in New Jersey boats who haven't heard that. In fact, I've never seen one give way. For that matter, I've never seen a short eye splice, properly done, give way. As for straight long splices, I've done those a couple of times to prove I could do it, but I'd rather buy a new piece of rope. Uh Huh... And so would every body else who values his hide or boat... (except in New Jersey? VBG!) The long version reduces strength by 10 to 15% if done perfectly (and 20 to 50% if done sloppy~!) I have some laid rope - anchor rodes and mooring lines. The rest are all braid or cored. -- Richard Lamb |
#39
Posted to rec.crafts.metalworking
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Compound pulleys....
cavelamb fired this volley in
m: And so would every body else who values his hide or boat... (except in New Jersey? VBG!) I think I'd be more concerned with using a splice in closely-sized sheaves and blocks. Most military gear is over-sized, over-strength, and tough. I _think_ I understand that racing gear is sized to the absolute minimum weight and size necessary for the job. Splices will run in over-built equipment just fine, but when the hardware is scarcely larger than the line, I don't think it'll work too well. LLoyd |
#40
Posted to rec.crafts.metalworking
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Compound pulleys....
"cavelamb" wrote in message m... Ed Huntress wrote: "cavelamb" wrote in message m... Ed Huntress wrote: "Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message . 3.70... "J. Clarke" fired this volley in : xcept when working a wire-to-rope splice. Yep... cept the racing sailors probably don't know the diff between a fid and a marlinspike. LLoyd Ah, yes we do. But not many of them can make a nice-looking long splice. d8-) NObody does long splices any more, Ed. Synthetics are way to slippery for that. There are millions of long eye splices in nylon rope in New Jersey boats who haven't heard that. In fact, I've never seen one give way. For that matter, I've never seen a short eye splice, properly done, give way. As for straight long splices, I've done those a couple of times to prove I could do it, but I'd rather buy a new piece of rope. Uh Huh... And so would every body else who values his hide or boat... (except in New Jersey? VBG!) The long version reduces strength by 10 to 15% if done perfectly (and 20 to 50% if done sloppy~!) I have some laid rope - anchor rodes and mooring lines. The rest are all braid or cored. That's what I figured. But all this talk about fids and marlinspikes, and short versus long splices, let me to believe we were talking about laid rope. -- Ed Huntress |
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