What the heck is this tool for ........ cleaning

General cycling advice ( NOT technical ! )
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[XAP]Bob
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Re: What the heck is this tool for ........ cleaning

Postby [XAP]Bob » 21 Jun 2019, 8:06am

Marcus Aurelius wrote:
[XAP]Bob wrote:
Marcus Aurelius wrote:
Not quite. Any disc with teeth on it is a cog, the terms ‘sprocket’ and ‘ring’ just refer to the function and position of the cog.

A cog has teeth that mesh with those of another cog or worm gear etc. A sprocket’s teeth meshes with a roller chain.

They are different.

Cog can also refer to the individual teeth on a cog, and could stretch to those on a sprocket as well, but the whole round thing is a sprocket, not a cog.


Nope.


Yes - those were taken from the OED.
You are taking colloquial usage as truth, which on technical matters is just wrong.
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tatanab
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Re: What the heck is this tool for ........ cleaning

Postby tatanab » 21 Jun 2019, 8:09am

^^^^^^^^^^^ Not only that, but the use of "ring" to describe a sprocket on a cassette is a modern usage. When I read it I always think it is a new rider who knows the term chainring so thinks it applies to the rear as well.

mattheus
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Re: What the heck is this tool for ........ cleaning

Postby mattheus » 21 Jun 2019, 9:20am

tatanab wrote:^^^^^^^^^^^ Not only that, but the use of "ring" to describe a sprocket on a cassette is a modern usage. When I read it I always think it is a new rider who knows the term chainring so thinks it applies to the rear as well.


[my bold] Your post is the first time I can remember hearing this. (I would think the same as you.) I hope it doesn't catch on!

Marcus Aurelius
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Re: What the heck is this tool for ........ cleaning

Postby Marcus Aurelius » 21 Jun 2019, 12:45pm

[XAP]Bob wrote:
Marcus Aurelius wrote:
[XAP]Bob wrote:A cog has teeth that mesh with those of another cog or worm gear etc. A sprocket’s teeth meshes with a roller chain.

They are different.

Cog can also refer to the individual teeth on a cog, and could stretch to those on a sprocket as well, but the whole round thing is a sprocket, not a cog.


Nope.


Yes - those were taken from the OED.
You are taking colloquial usage as truth, which on technical matters is just wrong.


A sheep is a type of animal, a dog is also a type of animal. A dog is not a sheep. A chain ring is a cog, a sprocket is also a cog, a sprocket is not a chain ring.

skyhawk
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Re: What the heck is this tool for ........ cleaning

Postby skyhawk » 21 Jun 2019, 2:01pm

Marcus Aurelius wrote:
[XAP]Bob wrote:
Marcus Aurelius wrote:
Nope.


Yes - those were taken from the OED.
You are taking colloquial usage as truth, which on technical matters is just wrong.


A sheep is a type of animal, a dog is also a type of animal. A dog is not a sheep. A chain ring is a cog, a sprocket is also a cog, a sprocket is not a chain ring.



???

My cat has 4 legs, a dog has 4 legs therefore my cat must be a dog !!!
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Marcus Aurelius
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Re: What the heck is this tool for ........ cleaning

Postby Marcus Aurelius » 21 Jun 2019, 5:00pm

skyhawk wrote:
Marcus Aurelius wrote:
[XAP]Bob wrote:
Yes - those were taken from the OED.
You are taking colloquial usage as truth, which on technical matters is just wrong.


A sheep is a type of animal, a dog is also a type of animal. A dog is not a sheep. A chain ring is a cog, a sprocket is also a cog, a sprocket is not a chain ring.



???

My cat has 4 legs, a dog has 4 legs therefore my cat must be a dog !!!


Oh Jesus, here we go. It’s not rocket science. Strictly speaking, cogs, are actually the teeth on the sprocket or chain ring or whatever, hence the ancient term cogwheel to describe the bits that do the work.

skyhawk
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Re: What the heck is this tool for ........ cleaning

Postby skyhawk » 21 Jun 2019, 6:44pm

Personally I was just adding to the joke :) :) :)

I have two knees, and elephant has TWO knees therefore I must be an elephant

Did you know elephants have TWO legs and TWO arms not four legs........................

Elephants have 2 legs and 2 arms, but the 'things' at the end of each limb are called feet. There a defining definition that defines what is a foot and what is a hand?

Google it, and blame google not me
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Vantage
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Re: What the heck is this tool for ........ cleaning

Postby Vantage » 21 Jun 2019, 11:34pm

Marcus Aurelius wrote:
A sheep is a type of animal, a dog is also a type of animal. A dog is not a sheep. .


It might be a sheepdog though.
Bill


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Mick F
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Re: What the heck is this tool for ........ cleaning

Postby Mick F » 22 Jun 2019, 6:20am

skyhawk wrote:I have two knees, and elephant has TWO knees therefore I must be an elephant
Did you know elephants have TWO legs and TWO arms not four legs........................
Elephants have four legs and four knees.
Pachyderms are the only animals with four knees.
Mick F. Cornwall

tim-b
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Re: What the heck is this tool for ........ cleaning

Postby tim-b » 22 Jun 2019, 6:32am

duty_calls.png
(c) xkcd.com
duty_calls.png (13.77 KiB) Viewed 206 times
~~~~¯\(ツ)/¯~~~~

skyhawk
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Re: What the heck is this tool for ........ cleaning

Postby skyhawk » 22 Jun 2019, 8:27am

tim-b wrote:duty_calls.png




:) :) :) :)
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brynpoeth
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Re: What the heck is this tool for ........ cleaning

Postby brynpoeth » 23 Jun 2019, 3:32pm

A Wolf-hound is a hybrid beast, just like a sheep-dog, horse-fly, cat-fish :wink:
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Halla
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Re: What the heck is this tool for ........ cleaning

Postby Halla » 23 Jun 2019, 5:04pm

Keep this going it is much more fun, makes bikes and cycling look dull!!!! :D :lol:

Welcome to the forum Skyhawk.

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Mick F
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Re: What the heck is this tool for ........ cleaning

Postby Mick F » 23 Jun 2019, 5:13pm

brynpoeth wrote:A Wolf-hound is a hybrid beast, just like a sheep-dog, horse-fly, cat-fish :wink:
What about dog-fish or lion-fish or even non-animals like gravy-train or sausage-factory or perhaps barn-dance?
Mick F. Cornwall

Marcus Aurelius
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Re: What the heck is this tool for ........ cleaning

Postby Marcus Aurelius » 23 Jun 2019, 5:19pm

Vantage wrote:
Marcus Aurelius wrote:
A sheep is a type of animal, a dog is also a type of animal. A dog is not a sheep. .


It might be a sheepdog though.


Ah, yes :lol: