Author Topic: Pictures of my machines.  (Read 1533 times)

Offline Bruno Mueller

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Re: Pictures of my machines.
« Reply #15 on: November 17, 2020, 03:52:24 PM »
some more pictures of my machines.

Offline Daggers

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Re: Pictures of my machines.
« Reply #16 on: November 17, 2020, 04:23:26 PM »
Nice collection of interesting engines, excellent work  :ThumbsUp:
Would be interested in a little more information on the last picture (group of three).
Daggers

Offline Pete49

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Re: Pictures of my machines.
« Reply #17 on: November 18, 2020, 02:04:18 AM »
Who's been a busy boy then?   :cheers:
Beautiful engines Bruno.  :Love:
I used to have a friend.....but the rope broke and he ran away :(

Offline Bruno Mueller

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Re: Pictures of my machines.
« Reply #18 on: November 18, 2020, 11:05:43 AM »
Nice collection of interesting engines, excellent work  :ThumbsUp:
Would be interested in a little more information on the last picture (group of three).
Nice collection of interesting engines, excellent work  :ThumbsUp:
Would be interested in a little more information on the last picture (group of three).

Well, all machines shown were built by me in the last 30 years.
This is the last small series of steam feed pumps for locomotives of gauge 5". The first series I put on 1994. There were 15 pieces at that time.
I produced this last series in 2007 with a total quantity of 7.
They are small self-starting, flywheel-less double acting steam pumps, which have a 16mm steam piston diameter and the water piston is 10mm. The stroke is 22mm. The pump is of the type "Westinghouse".
In the lower pump body there are two suction valves and two pressure valves.
The total size of the pump is 115mm.
In the last year I made two more, slightly larger pumps for a 7 1/4" gauge locomotive.
These pumps have the dimensions steam cylinder 30mm, water cylinder 16mm, stroke 40mm.



« Last Edit: November 18, 2020, 11:12:48 AM by Bruno Mueller »

Offline Chipswitheverything

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Re: Pictures of my machines.
« Reply #19 on: November 18, 2020, 02:32:22 PM »
Many thanks for showing us these excellent photos of your wonderful collection of very fine model engineering projects and engines, very impressive and interesting. Dave

Offline Bruno Mueller

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Re: Pictures of my machines.
« Reply #20 on: November 18, 2020, 02:58:35 PM »
In 2016 I built the Pillar tool by G.H.Thomas.
I found the drawings in his book "Workshop Techniques".
I did not use any cast blanks for the construction. The complete device was worked out of solid material. Some parts I found on the scrap metal. Other parts I bought from steel dealers.
Since I can't work well with the imperial measurement system, I converted all measurements to the metric scale. This will inevitably result in very unfavorable dimensions. All measures were then rounded up or down.
But see for yourself.

Offline Bruno Mueller

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Re: Pictures of my machines.
« Reply #21 on: November 18, 2020, 03:02:14 PM »
more Pictures.

Offline Daggers

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Re: Pictures of my machines.
« Reply #22 on: November 19, 2020, 12:18:08 PM »
Well, all machines shown were built by me in the last 30 years.
This is the last small series of steam feed pumps for locomotives of gauge 5".
Thanks for the photos of the pumps. Always thought about putting a pump on one of my locos but never have. Would be interested in seeing one of your pumps fitted on a loco. Are the pumps to your design? Great work.
Daggers

Offline Bruno Mueller

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Re: Pictures of my machines.
« Reply #23 on: November 19, 2020, 03:37:26 PM »
The principle of the pumps was developed by H.Wittman, who unfortunately has already passed away. But I redesigned the pumps and adapted them to the appropriate scale.  I don't have any drawings, only rough sketches of the function.  At the garden railroad workshop in Germany there are still drawings by Hans Wittmann.

http://www.garba.de/wittmann-modellbauplaene.html
« Last Edit: November 19, 2020, 03:57:36 PM by Bruno Mueller »