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The Crane, a medieval wonder · **1 Like**

It was a grey and rainy day outside, indside it was almost no light. I post the result anyway.

The Crane was used to place masts on ships and to load cargo. It consists of two wooden treadmills. Four people could lift the weight of up to two tons by walking activity.

**mahanpots** · 10-06-2019, 04:43 AM

I'd love to see this in person. Sounds ingenious. Thanks for sharing.

Charlie Victor · 10-06-2019, 04:57 AM

Very interesting! Thank you for sharing.
Best.

**foxandcrow** · 10-06-2019, 06:45 AM

Nice series, interesting to see.

bscott · 10-06-2019, 08:15 AM

Interesting but I'm still not sure how it works. What happens if one or two of the walkers would stop during a lift would it fall?

Janse · 10-07-2019, 10:15 AM

Originally posted by mahanpots

I'd love to see this in person. Sounds ingenious. Thanks for sharing.

Thank you for commenting.

---------- Post added 10-07-19 at 10:15 AM ----------

Originally posted by Charlie Victor

Very interesting! Thank you for sharing.
Best.

Thanks for comenting.

---------- Post added 10-07-19 at 10:16 AM ----------

Originally posted by foxandcrow

Nice series, interesting to see.

Thank you.

---------- Post added 10-07-19 at 10:18 AM ----------

Originally posted by bscott

Interesting but I'm still not sure how it works. What happens if one or two of the walkers would stop during a lift would it fall?

Thank you. I suppose it has got a brake.

---------- Post added 10-07-19 at 10:18 AM ----------

Originally posted by valonkuvaaja

Nice one

Thank you.

**ToddK** · 10-07-2019, 10:18 AM

Nice series of photos and very informative.

**PenPusher** · 10-07-2019, 03:37 PM

I looked it up, medieval cranes rarely had ratchets or breaks relying on the high friction resistance of the device to prevent it building up speed. On the one above the closeness of the circular beams would prevent somebody getting on or off quickly, I presume any injuries were put down to "Act of God" and tough luck.

Janse · 10-11-2019, 01:35 AM

Originally posted by ToddK

Nice series of photos and very informative.

Thank you.

---------- Post added 10-11-19 at 01:38 AM ----------

Originally posted by PenPusher

I looked it up, medieval cranes rarely had ratchets or breaks relying on the high friction resistance of the device to prevent it building up speed. On the one above the closeness of the circular beams would prevent somebody getting on or off quickly, I presume any injuries were put down to "Act of God" and tough luck.

Thank you for the info.

**pichaser** · 10-11-2019, 02:27 AM

It isn't too late to learn .

Janse
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10-06-2019, 04:43 AM	#2
mahanpots Loyal Site Supporter Join Date: Jan 2016 Location: Seagrove, NC Photos: Gallery Posts: 953	I'd love to see this in person. Sounds ingenious. Thanks for sharing.

10-06-2019, 04:57 AM	#3
Charlie Victor Pentaxian Join Date: Nov 2015 Location: Durban Photos: Albums Posts: 1,227	Very interesting! Thank you for sharing. Best.

10-06-2019, 06:45 AM	#4
foxandcrow Site Supporter Join Date: Sep 2017 Location: Colorado Posts: 1,995	Nice series, interesting to see.

10-06-2019, 08:15 AM	#5
bscott Veteran Member Join Date: Oct 2013 Posts: 483	Interesting but I'm still not sure how it works. What happens if one or two of the walkers would stop during a lift would it fall?

10-07-2019, 10:15 AM	#6
Janse Inactive Account Join Date: Feb 2015 Posts: 4,460 Original Poster	Originally posted by mahanpots I'd love to see this in person. Sounds ingenious. Thanks for sharing. Thank you for commenting. ---------- Post added 10-07-19 at 10:15 AM ---------- Originally posted by Charlie Victor Very interesting! Thank you for sharing. Best. Thanks for comenting. ---------- Post added 10-07-19 at 10:16 AM ---------- Originally posted by foxandcrow Nice series, interesting to see. Thank you. ---------- Post added 10-07-19 at 10:18 AM ---------- Originally posted by bscott Interesting but I'm still not sure how it works. What happens if one or two of the walkers would stop during a lift would it fall? Thank you. I suppose it has got a brake. ---------- Post added 10-07-19 at 10:18 AM ---------- Originally posted by valonkuvaaja Nice one Thank you.

10-07-2019, 10:18 AM	#7
ToddK Loyal Site Supporter Join Date: Jan 2010 Location: Texas Hill Country Photos: Gallery Posts: 11,566	Nice series of photos and very informative.

10-07-2019, 03:37 PM	#8
PenPusher Site Supporter Join Date: Apr 2009 Location: Ireland Posts: 1,048	I looked it up, medieval cranes rarely had ratchets or breaks relying on the high friction resistance of the device to prevent it building up speed. On the one above the closeness of the circular beams would prevent somebody getting on or off quickly, I presume any injuries were put down to "Act of God" and tough luck.

10-11-2019, 01:35 AM	#9
Janse Inactive Account Join Date: Feb 2015 Posts: 4,460 Original Poster	Originally posted by ToddK Nice series of photos and very informative. Thank you. ---------- Post added 10-11-19 at 01:38 AM ---------- Originally posted by PenPusher I looked it up, medieval cranes rarely had ratchets or breaks relying on the high friction resistance of the device to prevent it building up speed. On the one above the closeness of the circular beams would prevent somebody getting on or off quickly, I presume any injuries were put down to "Act of God" and tough luck. Thank you for the info.

10-11-2019, 02:27 AM	#10
pichaser Site Supporter Join Date: Oct 2013 Photos: Gallery Posts: 2,782	It isn't too late to learn .

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