Westlake Publishing Forums

Im Speechless and now on my second flower arranging class !
Barney

I hope you find the answers to your questions. If so, maybe your model will help to educate others. -- Russ

Thank you, gentlemen, for your approval!

 The question arose in the Buntbahn forum as to whether the drive with chain was guaranteed... Answer no!

I was able to discover a few photos on the WWW under Hamburg harbor cranes that show a "rope sheave" or reel wheel. Some of the ropes run from the "pulley" (?) to the front of the crane house. 
The functional principle cannot be recognized on the linked picture either: click

Unfortunately, I only have a few low-resolution pictures of the Münzel crane. These are from different expansion stages.

I found a few pictures from the mid-1950s in the family album, in which not many details are recognizable.
The following photo was taken by my grandfather on a boat trip at the time.

Münzel Ausleger 01 (fspg2)


Münzel Ausleger 02 (fspg2)


So far, I can only assume a kind of "pulley", which, however, shows no connection to the crane house below. The resolution is simply not good enough.

Münzel Ausleger 03 (fspg2)



Later, the sand to be loaded was not only stored on the ground, but a double hopper was built under which trucks could load the sand directly. This was much quicker than waiting for individual crane shovels.


In the following later photos, you can see a structure that has yet to make sense to me.
If there is an electric motor inside the box elevated below the auger shaft, I unfortunately see no direct connection to the boom gearbox.
 
Münzel Ausleger 04 (fspg2)

Münzel-Kran_Lauenburg (Copyright W.Hinsch-LEA)


The crane looked like this at the end of 1959/60:

Muenzelkran_Lbg_2k (fspg2)

Münzel-Kran_Lauenburg (Copyright W.Hinsch-LEA)

What is that black bar (or cover plate seen from the side) above the gearbox?

Getriebe_Ausleger_07 (fspg2)



Getriebe_Ausleger_08 (fspg2)


Now I'm curious to see if any of you can provide more detailed information about how the drive might have worked here and what kind of "box" (housing for electric motor?) might be on the left in the picture above.


I recently put together the boom with the crane housing and base.

Münzel Montage komplett 3 (fspg2)


Münzelkran Gehäuse mit Sockel 01 (fspg2)



Since I don't know anything about the roof frame of this crane, I took the liberty of adding a few diagonal braces to the existing riveted connections of the roof frame - this time as a possible later welded version. I took my inspiration from the old blue Hamburg crane.

Bolzen 02 (fspg2)



U-Profil Dach-Gruppe 08 (fspg2)


U-Profil Dach-Gruppe 09 (fspg2)


U-Profil Dach-Gruppe 10 (fspg2)



U-Profil Dach-Gruppe 11 (fspg2)


The four L-profiles, which will support the gearbox housing drawn in red, have not yet had a direct connection drawn in the animation.

Another update:

Above, in my first two pictures (Münzel boom 01 + 02), I can see a pulley - but unfortunately no downward connection..... how can the boom have been raised and lowered back then?

When I recently received a great tip from Volker about a picture from the Oldenburg City Museum, I asked there whether I could use a colored section of a crane picture from 1920 there for my article here. I got the green light (thanks for that) 

Bildausschnitt Kran 1920 (fspg2)

Quay around 1920 ©Stadtmuseum Oldenburg
(Image detail after consultation with the Oldenburg City Museum)


In a book about the DEMAG company from 1920, I then found a solution that could also have been possible for the Lauenburg Münzel crane in the beginning.

Demag Vollportalkran ca.1929_01 (fspg2)


Many cranes from this period were equipped with "manually retractable jibs".

Demag Vollportalkran ca.1929_02 (fspg2)



Demag Vollportalkran ca.1929_03 (fspg2)


On the two enlarged sections you can see how a cable (the pressure grid makes it look more like a spiral cable) leads downwards from a very small upper pulley on the outside of the crane. There also appears to be a pulley or sheave at the lower end. The bright spot in the middle could have been an axle to an inward crank.

On the Oldenburg crane, the cables probably led down through the roof.


As suggested by Michael in the Buntbahn forum, I will make a design in CAD in which a driven shaft goes vertically upwards out of the crane housing and forms the connection to the worm shaft with two bevel gears (module 0.4).
The only thing I still can't find is an explanation as to why the hood on the left (in the picture Getriebe_Ausleger_08) was clearly below the spindle axis.

I still hope to get more information from the Lauenburg museum...  maybe some pictures or even drawings will turn up that explain further.

When I started to build a model of the lift bridge in 2011 (https://www.finescalerr.com/smf/index.php?topic=1424.0), I only had a few floor plans, a dimensioned revision drawing and three small pictures. With these, I was at least able to recreate the lock entrance.
Then, in 2018, a nice contact on the Buntbahn forum told me who could help me with the original plans of the bridge. Some things just take a little longer ;-)


Münzel Montage komplett 3 (fspg2)

Certainly looks convincing to me.

Stuart

As always, your work stands above and beyond all others.

Bill, yes, it could be used for a multitude of different tasks, have a look at the Lorry that "Steptoe & Son" use, very similar to this design, only the one they use is a bit smaller.

Thank you for the compliment Russ, much appreciated.

It looks quite good but if you have any doubts, remember this: A model rarely seems good enough while we work on it but may look terrific when we see it a year later. -- Russ

Might be a coincidence or not, but I had exactly the same thought when I saw Greenies newest cration (and his wagons are really work of art).
To be honest, I had become a litte bit weary of all that weathering – would be fine to do something that looks bright and clean, I thought for a moment.

Peter, it looks like you've figured out how to do rain marks. Excellent results.

Interesting to compare the look of your field battered vehicle with the pristine wagon that greenie posted on his old wagons thread.