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Oct 8, 2009: Iscykel
It's October, World Series, Halloween and chilly weather, here abouts.
A reminder that winter is coming, and that means outdoor exercising get curtailed, for those of us that aren't dedicated masochists.
If you don't have chains or spiked tires for your bicycle, you could build an Iscykel.
| Instead of wheels it had a front skate that you could steer with ordinary steering handles, and at the rear it had also a skate, inside which there was a moving skate that went forwards and backwards as you pedaled it via a chain. It was used for transportation on frozen lakes." |
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The rear runner has slot in the center running longitudinally. In this slot there appear to be two independent drive skates or claws that slide fore and aft. These are driven by a linkage system not dissimilar to that found on old railroad steam engines. The difference is that these linkages are designed to operate at a mechanical disadvantage with regard to power so that they have a Long and fast "stride". The power strokes are opposed so that there is always one skate in the power stroke (moving rearward) while the other is in recovery (moving forward). This, I speculate, provides easier mounting and less friction. |
Well, something else to do.
link
Griff Thursday Oct 8 06:25 AM
Sweet!
Griff Thursday Oct 8 06:35 AM
Sweden 2000 years ago?
sweetwater Thursday Oct 8 08:43 AM
No, thank you - I might give it a go if it was a Triscykel and the handlebars had a wind screen and hot cocoa holder, though. Might. But check the thickness of the ice, first - those inline skates would put a lot of pressure in a narrow area, yes?
lupin..the..3rd Thursday Oct 8 09:22 AM
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Originally Posted by sweetwater
But check the thickness of the ice, first - those inline skates would put a lot of pressure in a narrow area, yes?
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monster Thursday Oct 8 10:04 AM
I'd like to see it in action
(as the actress said to the bishop)
newtimer Thursday Oct 8 11:39 AM
Somebody's overthinking the locomotion at the back end. Just leave the wheel off, as the picture shows, and let the length of the chain push you along as it scrapes the ice.
jpc Thursday Oct 8 12:04 PM
Does anyone know how old this is?
The modern one
https://www.ktrakcycle.com/index.html
xoxoxoBruce Thursday Oct 8 12:18 PM
Here's a simpler version from the late 1800s.
link
sweetwater Thursday Oct 8 12:33 PM
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Originally Posted by lupin..the..3rd
It would be less pressure than your standard ice skates.
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treehugger Thursday Oct 8 03:27 PM
I live in Arlington WA and boy could I use one of those! last year we got 6 feet of snow!!!!
Warren Peas Thursday Oct 8 06:24 PM
jpc
Ktraks have been on the market for a couple of years now. I know the two guys on Vancouver Island that came up with the concept. Tried one out for the first time last winter, pretty good workout. The guy in the pic is the company president.
Clodfobble Thursday Oct 8 11:35 PM
Do you think it's supposed to rhyme with "sickle," or "cycle?"
Gravdigr Saturday Oct 10 05:45 PM
Let's see now... Umm... Thinking... Thinking... Uh, no. Nope. Do Not Want.
I'm going w/sickle. Icicle?
Coign Monday Oct 12 11:08 AM
Here in Vail, we like our snowbikes to be terrifying.
http://www.vail.com/activitiesdetail...re%20ridge.axd
http://www.snowbike.us/e-produkte.htm
Even Prince Charles gets down with the snowbike.
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