Hallo Zusammen,
Richard Walsby, HDS UK, verfolgt unser Projekt mit Interesse und gibt gute Hinweise. Hier unser Schriftverkehr der letzten Tage.
Gruß,
Franz
Am 21.08.2017 um 21:03 schrieb e-mail richard.walsby:
Franz,
I expect you have thought of this but there are several videos showing how to construct your own bellows as used by blacksmiths (schmied) on YouTube. I guess a blacksmith's bellows will allow greater volumes of air to be moved than just an ordinary fire-bellows. There may also be makers of replica bellows in Germany who may be able to give you advice on construction
Regards
Richard
On 21 August 2017 at 21:52 Franz Rothbrust <franz.rothbrust@historische-tauchergesellschaft.de> wrote:
Dear Richard,
thanks a lot for your support, which is highly appreciated. We may be able to get a bellow from a fire fighter museum. Blacksmith bellows are huge and can deliver a high volume, but they can not build up much pressure. So we need a medium size one. According to Kreeft, he has to be 3 or 4 feet long. Kreeft did not dive deeper than 10 meters. Otherwise his constant flow air supply would have not worked. The bellow has to deliver about 40 normal liters of air per minute or 20 liter under a pressure of 1 bar.
I will take a look into the YouTube bellow making videos. During the next days I have to find a leather tailor to make the suit. He or she should be able to sew water tight. We need to find someone who can make historic leather hoses, this is probably the largest problem we have.
: )
Franz
Am 22.08.2017 um 12:04 schrieb e-mail richard.walsby:
Franz, I forgot to include this suggestion.
There was a book written in English by Tim Severin in 1978 called The Brendan Voyage. This was about his attempts to re-create the voyage by the semi-mythical Saint Brendan, an Irish missionary who lived in the 6th Century and is claimed to have sailed to America (Newfoundland). The author made an authentic replica of the leather boats used at the time, which were called curraghs . These were made from leather from ox-hides which had been tanned with oak-bark and made waterproof with wool grease or lanolin. The replica was not expected to survive the journey, but in fact it was successful and so was the book based on the journey.
I guess your replica will not be asked to survive such extremes as the curragh.
You may be able to get further advice or help on treating leather from these German Institutes
https://www.filkfreiberg.deor
http://vgct.de/Museums will often have suppliers if they want to restore old materials such as armour and other leather articles and there may be other research centres you could consult.
Best wishes
Richard
Richard,
OK, we will use wool grease from Harris Island! Oak bark fermented leather is the one we will have to take for the suit because it does not get hard after being in contact with water.
: )
Franz
Am 22.08.2017 um 13:45 schrieb Franz Rothbrust:
Richard,
thanks, I will contact them an let you know.
End of September, Dr. Freitag from the Stralsund Museum will be back from holiday, he may have sources as well.
The Kreeft project is getting more and more interesting.
: )
Franz
On 22 August 2017 at 13:38 Franz Rothbrust <franz.rothbrust@historische-tauchergesellschaft.de> wrote:
Richard,
these people should be helpful as well:
https://www.ledermuseum.de/I sent them an email asking for support.
: )
Franz
Am 22.08.2017 um 17:55 schrieb e-mail richard.walsby:
Franz,
The DLM looks a good find
I guess you want people with knowledge of the "industrial" working of leather rather than the "artistic" sort.
Richard
Richard,
the industrial or technical experts are good to solve the basic problems. As soon as we know how to make all details, the "artistic" part will follow. Kreeft's suit was made during the period of classicism. We should follow the "design" of that period.
: )
Franz