Author Topic: Otto Langen 1867 Engine Drawings  (Read 18625 times)

Offline Jo

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Otto Langen 1867 Engine Drawings
« on: January 22, 2014, 11:25:48 AM »
An old friend of mine, John Day, who sadly is no longer with us  :'(, had a friend who had one of these Otto Langen engines:





John diligently drew it up and made a model of this own, which had a lovely motion but at the time I was not interested in building one as it runs on Actelene... Time has moved on and I have a growing desire  :mischief: but sadly John is no longer around so I am unable to sweet talk him out of his drawings  :(

I understand that over the years two other models of this type of engine have been made one a 1/8th scale and a 1/6th scale (ignoring the 3/4 scale  :Love: that is in a museum). I understand that the designer of one of these models (Johnnie Lenaz) has now gone the way of my good friend John.. One of my club members built one of these engines but has subsequently lost the drawings  :toilet_claw:  :hammerbash:  :rant: :hellno:  :'(

So the question is does anyone know where I could acquire a set of drawings for one of these models.

Jo

« Last Edit: January 22, 2014, 11:49:54 AM by Jo »
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Offline steamer

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Re: Otto Langen 1867 Engine Drawings
« Reply #1 on: January 22, 2014, 11:56:49 AM »
Jo I've seen this engine at shows...about 18" tall.   I can't recall the casting source at the moment....but I'll poke around later...

Dave
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Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #2 on: January 22, 2014, 12:04:01 PM »
Thanks Dave,

From what I remember of John's engine running she was easy to start, and the motion is  :Love:

Jo
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Offline Mike OConnor

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Re: Otto Langen 1867 Engine Drawings
« Reply #3 on: January 22, 2014, 12:58:51 PM »
Hello Jo,

At one time Wayne Grenning of Grenning Models ( Lockport, NY USA ) had castings and drawings available for a 1:7 scale Otto Langen engine. I have seen examples of these in person at model engine shows and they are indeed impressive. He may be your best source for drawings and information. Sadly, I do not believe castings are available anymore.

Check out his 'Previous Projects' page, there are several examples in different scales.

https://sites.google.com/site/grenningmodelscom/home

https://sites.google.com/site/grenningmodelscom/review17thscaleottolangen

Hope this helps,
Mike
« Last Edit: January 22, 2014, 01:04:00 PM by Mike OConnor »

Offline Dave Otto

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Re: Otto Langen 1867 Engine Drawings
« Reply #4 on: January 22, 2014, 01:19:35 PM »
Hi Jo
The drawings that I know of were created by Emmett Lenaz; this is a total bar stock engine. A friend made one from these plans and it turned out beautiful and runs as nice as it looks. I donít believe Wayne Grenning ever sold castings or kits of either of his Otto & Langen engines; only completed engines.
I thought that someone was still selling Emmettís plans but Iím not sure who.
I have this engine mostly modeled in SW working from these plans and it is on my someday project list.

Dave

Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #5 on: January 22, 2014, 01:28:26 PM »
Thanks Mike, I had tracked down the Grenning Models but as Dave mentioned I understand that they only did them ready to run in 3/4" and the (25 off) 1/7th, then later (50 off) 1/6th scales. 

But there is out there was also the 1/8th scale barstock version by Lenaz :naughty:

I think a 1/4 scale one would be about right...

12" flywheel
13" column
1 1/2" bore.
40" tall  8)

Dave... How far through are you in drawing it up?

Jo
« Last Edit: January 27, 2014, 02:30:45 PM by Jo »
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Offline Dave Otto

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Re: Otto Langen 1867 Engine Drawings
« Reply #6 on: January 22, 2014, 01:47:58 PM »
I have it mostly done; this was done quite a few years ago in my spare time at work when I was learning SW. There are some things I need to fix and also go back through everything and make sure it's all correct.

There are still a few parts that need to be modeled and added to the assembly. This version has a 7 3/4Ē flywheel and stands about 22Ē tall.

When my friend made his he altered the base somewhat and used needle bearings on the shafts. The bearing standards were also modified to hide the needle bearings.

Dave

Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #7 on: January 22, 2014, 02:52:49 PM »
 :Love: That is very nice.

Jo
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Offline Mosey

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Re: Otto Langen 1867 Engine Drawings
« Reply #8 on: January 22, 2014, 03:18:17 PM »
Lady and Gentlemen:
I have a large bucket of popcorn, and soda ready for this build. Hang on to your hats, who will have it done first? A transatlantic build contest?
Mosey :cheers: :cheers:

Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #9 on: January 22, 2014, 03:22:24 PM »
 :lolb:

No the of my life comes first. But I am planning on doing a couple of smaller builds in tandem to keep my sanity ;)

Jo
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Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #10 on: January 25, 2014, 09:09:03 PM »
:embarassed: I don' think MEM has yet done a team build... I am not sure what consitutes a team build. Is that building engines in parallel or is it sharing the machining between the members?

Don't hold your breath but  ;)

Jo
« Last Edit: January 25, 2014, 09:13:30 PM by Jo »
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Offline Mosey

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Re: Otto Langen 1867 Engine Drawings
« Reply #11 on: January 25, 2014, 11:39:57 PM »
Different from the green one in the Beautiful Engines book?
Mosey

Offline Dave Otto

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Re: Otto Langen 1867 Engine Drawings
« Reply #12 on: January 26, 2014, 01:03:40 AM »
I think the context of team build from the other place is; an engine is chosen (usually a very basic bar stock steam engine) and folks sign up to build certain parts of it in quantity. When you get your parts done you ship them to all the other builders. If all goes to plan you will receive enough parts in the mail to build an engine (except for the part that you made).

People over commit and the project drags on for what seems to be forever, this is based only on the length of the threads that I have seen.

Me, interested? I don't think so; but a tandem build where people all start the the same engine and work at your own pace would be somewhat different. My main problem with this is my projects run into years not months. I work for the enjoyment and for me it is the journey and not necessarily the end result.

I think Brian tried this at the other place with mixed results; not sure how it all turned out.

Interesting topic maybe it should be started in the chatterbox section.

Dave

Offline steamer

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Re: Otto Langen 1867 Engine Drawings
« Reply #13 on: January 26, 2014, 02:48:00 AM »
What Dave says is true, and without going into it..he's right.   It depends on the team, and the engine.   It can go very well or very poorly.   I think it really needs a leader,  who can be the leader, and facilitate the communication necessary to keep everybody moving.

It had mixed results at the other place...generally the mods laid low, though Tin Falcon I know got involved in some.

And yes....Chatterbox would be a better place to talk about it.

Dave
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Offline mhirst121

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Re: Otto Langen 1867 Engine Drawings
« Reply #14 on: January 26, 2014, 08:16:16 AM »
I have seen one of these engines on display at the Anson museum. Asked about it but did not get much of an answer and could not find the guy that owned it. It really is a nice looking engine.

MartinH
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Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #15 on: January 26, 2014, 08:33:46 AM »
Ok so really we are thinking more of a Tandem build then. First we need to put together a design (I can see a bit of competition there  :LittleDevil:), then someone who is good with  :embarassed: wood will need to be sweet talked into making a set of patterns and we can get them cast as a batch. Once one of us has set up for the gears it is just as easy to run off a number of sets as cutting the first.

I can't see the others wanting to let anyone else machine/bore the column for them  :lolb:

There is one of these engines in the London Science Museum that I might just have to visit ;)

Jo
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Online Brian Rupnow

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Re: Otto Langen 1867 Engine Drawings
« Reply #16 on: January 26, 2014, 01:20:52 PM »
Dave Otto--If it was my international build of the "Rupnow engine" you are referring to, the results were rather disappointing. I had initially hoped to find at least ten people world wide to build the engine along with me. Ten people did immediately step foreword, but about half of them found it to be too ambitious for their skill level and dropped out after making a few of the simple parts. One poor fellow fell ill and was unable to finish his. One gentleman finished the engine but for some reason was never able to get his to run. So---I ended up with 3 completed engines, mine, Gus's in Singapore, and Swifty's in Tasmania. One of the things I could never understand was that there were a number of people who proceeded with the build and are still working on their engines, but refuse to post their progress.--Brian Rupnow

Offline tangler

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Re: Otto Langen 1867 Engine Drawings
« Reply #17 on: January 26, 2014, 03:20:18 PM »
Here are some pics of the Crossley Langen and Otto patent engine at the Anson collection - on loan from the London Science Museum.



















Modeling this is vaguely there somewhere in my future plans.

As acetylene seems to provide a wider ignition range  than butane or propane I was wondering whether it would be possible to (safely) make a gas generator using water and calcium carbide.  I understand such things are still used by the caving community.

cheers,

Rod


Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #18 on: January 26, 2014, 03:26:37 PM »
Thanks Rod,

That  :Love: engine is lightly different again... I was thinking of modeling the version with the octagonal base.

Jo
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Offline Mosey

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Re: Otto Langen 1867 Engine Drawings
« Reply #19 on: January 26, 2014, 03:35:31 PM »
Brian,
Allow me to offer an explanation of why they may have never posted their progress. Perhaps they are like me, not very skilled, and stopped at every step by mistakes, lack of knowledge, how do I clamp this, hold that, frustration, discouragement, embarrassment of progress compared to yours, etc. and a host of other similar reasons. They may have stopped to do other things too.
So, my solution is to take on simpler projects guaranteeing success, and leave the more challenging stuff for later.
Just my thoughts.
Mosey   :hammerbash:

Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #20 on: January 26, 2014, 04:55:53 PM »
Mosey, I am sorry to hear that  :( I always try to explain everything as I go along in my threads but  you are not the only one who has problems those UPT arms are giving me no end of problems  :paranoia:.

Jo

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Online Brian Rupnow

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Re: Otto Langen 1867 Engine Drawings
« Reply #21 on: January 26, 2014, 05:18:01 PM »
Mosey--Never be afraid to present your lack of knowledge. Although there are some unkind people out there, most of us are more than willing to help. We all had to learn too at some point. Most of us are still learning. I started posting almost as soon as I started machining. Some of the things I posted make me cringe a bit now, when I think about it 5 years later, but nobody called me a fool. Many people offered up advice and wisdom I would never learned if I hadn't posted.--I know, you have to be a bit of an extrovert to post, and I am probably more extrovert than most.-----Brian

Offline Mosey

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Re: Otto Langen 1867 Engine Drawings
« Reply #22 on: January 26, 2014, 05:48:16 PM »
Brian,
Thanks for the encouragement! Perhaps I am too extroverted and post too much? I must say, on this forum the people have been like family to me, helping with expertise, suggestions, sending me stock, transistors, motors, plans, disks, and the list goes on. Bogs, Steve, Dave, Don, Dave, George, Jo, many others etc. Generous and helpful good people. Thank you all. So, I have tried to do likewise, sending things to others that they need and I may not. What comes around should go around.
Keep it coming, guys & gal!
Mosey  :cheers:

Offline stevehuckss396

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Re: Otto Langen 1867 Engine Drawings
« Reply #23 on: January 26, 2014, 06:12:09 PM »
Look at it this way Mosey, If you flub a part and show what you did and how you got there, what does it hurt to show what happened. Nothing. But what might happen is, you may get 2 or 3 suggestions of different ways to try. Or you may find that the way you were doing it was easiest and just need to change some small detail. Sure beats doing things the same way time after time and struggle all the way.

Either way Mosey, we got your back buddy. If you ever need anything you know you can write anytime.
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Offline Mosey

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Re: Otto Langen 1867 Engine Drawings
« Reply #24 on: January 26, 2014, 06:58:23 PM »
Thanks, Steve, you're one of the guys who always comes thru with help, be it bits and bobs, or expertise. Now for the bad news, it's taken me 10 years to build my Silver Bullet (2 cyl) off and on, mostly off, and you built the  same basic design times two (4 cyl)  in about 3 weeks. There's something to learn in there somewhere. HeHe! :lolb: :lolb:
Mosey

Offline fumopuc

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Re: Otto Langen 1867 Engine Drawings
« Reply #25 on: January 29, 2014, 07:37:29 PM »
Hi Jo, may be not a big help, but it is part of the original documentation of this engine. Fig.1 to 4 are links to an enlarge view of the drawing.
http://dingler.culture.hu-berlin.de/article/pj186/ar186020
Kind Regards
Achim

Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #26 on: January 29, 2014, 09:26:37 PM »
Thanks Achim,

Those are a lot better than some of the other versions of that drawing I have seen  :ThumbsUp:

Jo
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Offline tangler

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Re: Otto Langen 1867 Engine Drawings
« Reply #27 on: February 15, 2014, 09:43:34 PM »
Jo,

ME 4101 and 4103 (Sept 1999) have details of Herbert Stumm's Gold Medal winning model of the original  Otto & Langen with octagonal base.  He also includes details of his acetylene gas generator.  I'm not entirely convinced that it needs any castings.  Boring the long column, which is also the cylinder, will be "interesting".  As will machining the long rack.

Rod

Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #28 on: February 16, 2014, 02:30:28 AM »
Thanks Rod, one of the GMES members pointed me at that article  :ThumbsUp: with that and finding the last of the Lorenz drawings we are getting some good progress on putting the 1/4 scale design together  :whoohoo:

It looks like we can buy the rack for £40ish so we are planning on cheating  :naughty: and the column is 355mm tall, of which 325mm needs to be accurately bored and two of us have large enough lathes to easily do that and the flywheel  ;).

Current thoughts are to make the column and flywheel out of castings and it looks like it should be another cheap build 8)

Jo
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Offline Phil_L

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Re: Otto Langen 1867 Engine Drawings
« Reply #29 on: January 14, 2015, 01:23:49 AM »
Hello all,
Does anyone have a set of drawings for the Otto Langen?  I'm looking for 1/6 or maybe even 1/4 scale. 

I recently finished my Mery Explosive and would love to add the Otto to my collection.
I documented my Mery build here: http://www.teqknow.com/Shop/Mery.html and have a running video here:

Thanks!
Phil

Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #30 on: January 14, 2015, 07:41:15 AM »
Not yet  :shrug:

My 1/4 scale drawings are still in my 3D CAD package and a few bits still need a correcting to make them look more realistic, there are a couple of design decisions still to make which might alter internal measurements  ;)

We are not far off. A very nice man has made the patterns which I hope to pick up on Saturday  ;D: Then we just need to find a new foundry (after I have done the pattern for something else  :-[).

Currently the run looks to be 5 engine sets  :pinkelephant:

Jo

P.S. as it is a German engine the drawings are all in metric  :mischief:
« Last Edit: January 14, 2015, 09:38:29 AM by Jo »
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Offline Jasonb

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Re: Otto Langen 1867 Engine Drawings
« Reply #31 on: January 14, 2015, 07:57:16 AM »
And you can't have a top without a bottom


Offline Phil_L

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Re: Otto Langen 1867 Engine Drawings
« Reply #32 on: January 14, 2015, 04:25:43 PM »

We are not far off. A very nice man has made the patterns which I hope to pick up on Saturday  ;D: Then we just need to find a new foundry (after I have done the pattern for something else  :-[).

Currently the run looks to be 5 engine sets  :pinkelephant:

I like six. It just became my favorite number!  :embarassed:  :naughty: What would I need to do to get a slot in the line?

P.S. as it is a German engine the drawings are all in metric  :mischief:

You obviously have a keen eye for maintaining the full historic authenticity!!  It should be no other way.  Now I'll have to get my metric adjustable wrenches calibrated.

Offline Don1966

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Re: Otto Langen 1867 Engine Drawings
« Reply #33 on: January 14, 2015, 05:24:24 PM »
Jo I am interested in modeling this engine as well. I could not open any of the PDF files that were posted. Any info I can get would help.

Don

Offline Steamer5

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Re: Otto Langen 1867 Engine Drawings
« Reply #34 on: January 14, 2015, 05:33:02 PM »
Hi Don,
 I  had the same problem trying to view on my iPad. I've got adobe viewer on it. Hit the open in adobe & up came the drawings! Hope that helps.
Wonder if Jason's version is going to be made from stock........


Cheers Kerrin

Edit, sorry adobe reader....should of checked first!
Get excited and make something!

Offline b.lindsey

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Re: Otto Langen 1867 Engine Drawings
« Reply #35 on: January 14, 2015, 05:38:03 PM »
They opened here ok but I am at work. It seems like I saw some several years back at Cabin Fever but if I recall, they were bar stock not castings.

Bill

Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #36 on: January 14, 2015, 05:51:01 PM »
 :o Ok lets be honest this is not a small engine  :ShakeHead: You need a lathe that can throw a 12" flywheel.

We considered making the bits from stock and came to the assumption that it was actually cheaper to have them cast. And whilst Cast Iron is messy if it is cast by a good foundry it can be nice to machine.

I have six more parts to redraw (rachet Pawl, Pawl Eccentric Strap, Ratchet Wheel, Lever (2), and the rack foot). I used the original Lenaz drawings that I luckily acquired from a lovely man :-* as the basis for our redesign. Gears work out at 20DP. The rack is available commercially but only in volume.

Before I do all this I have to design and make the pattern for my Ploughing engine cylinder, which means working in the brown stuff  :paranoia: and I have been putting it off :facepalm2:

Jo

« Last Edit: January 14, 2015, 08:05:53 PM by Jo »
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Offline Stuart

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Re: Otto Langen 1867 Engine Drawings
« Reply #37 on: January 14, 2015, 06:07:33 PM »
Don

You cannot open the PDFs because a. You have a Mac and b. They are 3d ones

You can get a app to do it on the iPad and Adobe reader will do it if you have a OS X machine ( only install the Adobe stuff if you want it spread about your system

I do dev work for apple OS X and I have tried yo get them to extend the preview util to open them

Note your iPad uses iBooks to open the PDFs files

Stuart
My aim is for a accurate part with a good finish

Offline Jasonb

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Re: Otto Langen 1867 Engine Drawings
« Reply #38 on: January 14, 2015, 06:27:37 PM »
The patterns are not for highly detailed parts, more of a minimal waste if all surfaces are machines approach which will still work out cheaper than buying bar and billets to get the three main components out of.

Though I hate to think what postage to the collonies would be as they will weigh in at 27kg or 58lbs :-\

I'll sort out a photo a bit later.

J

Offline Xldevil

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Re: Otto Langen 1867 Engine Drawings
« Reply #39 on: January 14, 2015, 06:44:16 PM »
Don

You cannot open the PDFs because a. You have a Mac and b. They are 3d ones

You can get a app to do it on the iPad and Adobe reader will do it if you have a OS X machine ( only install the Adobe stuff if you want it spread about your system

I do dev work for apple OS X and I have tried yo get them to extend the preview util to open them

Note your iPad uses iBooks to open the PDFs files

Stuart

Hello.
I can open them in iBooks but the sides are blank.I'm using IOS 8.
Cheers,Ralph

Offline Stuart

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Re: Otto Langen 1867 Engine Drawings
« Reply #40 on: January 14, 2015, 06:49:52 PM »
Yes that's correct but it's because they are 3d PDFs not normal text based PDFs

Stuart

Ps look out for OS 8.1.3 later this week or next
My aim is for a accurate part with a good finish

Offline mhirst121

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Re: Otto Langen 1867 Engine Drawings
« Reply #41 on: January 14, 2015, 07:31:31 PM »
This is coming along very well. I am waiting for the Lorenz on the cart from Germany, as I used to own the full size engine and regret ever parting with it, but it does not seem to be available yet. Otherwise I could have been very tempted by one of these lovely engines.

Cheers,
MartinH
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Offline Phil_L

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Re: Otto Langen 1867 Engine Drawings
« Reply #42 on: January 14, 2015, 07:37:40 PM »
:o Ok lets be honest this is not a small engine  :ShakeHead: You need a lathe that can throw a 12" flywheel.

Before I do all this I have to design and make the pattern for my Ploughing engine cylinder, which means working in the brown stuff  :paranoia: and I have been putting it off :facepalm2:

Jo

The 12" flywheel doesn't scare me.  I've got 13" over the ways and the Mery was 12" or darn close if I remember. 

I'll just have to clean up the shop while I wait patiently...  :stir:  :happyreader:  :popcorn:

Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #43 on: January 14, 2015, 08:05:28 PM »
Hi Phil,

We normally ask new member to participate in the forum before we start giving out free drawings  ;)

As for the 12", that will just about fit on my small faceplate on the Colchester but I am expecting to choose to use the 18" one to give me more and easier clamping options  8)

Martin the Lenaz design is a "nearly" 1/6th scale version, so a little smaller than these  :naughty:

Jo
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Offline Jasonb

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Re: Otto Langen 1867 Engine Drawings
« Reply #44 on: January 14, 2015, 08:29:49 PM »
Quick Pic, I'll do a write up on the pattern making at some time.

J

Offline b.lindsey

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Re: Otto Langen 1867 Engine Drawings
« Reply #45 on: January 14, 2015, 11:49:40 PM »
Yep, based on the size of those patterns, this is a rather large engine. Nice looking patterns though!!

Bill

Offline Phil_L

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Re: Otto Langen 1867 Engine Drawings
« Reply #46 on: January 15, 2015, 01:13:33 AM »
Wow.  If that's a regular soda can then that flywheel is about 15 inches.  :o
Maybe I'll start looking for 1/6 scale.  :thinking:

Offline Don1966

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Re: Otto Langen 1867 Engine Drawings
« Reply #47 on: January 15, 2015, 02:05:18 AM »
Jo I will be looking to scale the engine down. A six inch flywheel is all I can handle. I want to make mine from bar stock. I just need drawings to scale down with.

Don

Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #48 on: January 15, 2015, 07:36:26 AM »
Hi Don,

I know that Alessandro Ambrosi did a very nice design for this engine with a 150mm flywheel, which has Mod 0.7 gears.

Jo
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Offline Mike Henry

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Re: Otto Langen 1867 Engine Drawings
« Reply #49 on: May 19, 2015, 06:20:37 PM »
Has there been any more progress on the Otto-Langen being discussed here?  I bought the Lenaz plans back in 1999 at NAMES where it has languished on a shelf recently.  I've been modeling it in Onshape with the idea of possibly building it, but am having difficulty figuring out exactly how some of the parts are attached.  My researches on the web have brought me here looking for more info and to this thread.

The attachment shows the status of the model thusfar.

Mike

Offline Jasonb

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Re: Otto Langen 1867 Engine Drawings
« Reply #50 on: May 19, 2015, 06:23:50 PM »
Waiting for someone to get their finger out and get some castings done from my patterns, seems she they has other things on her mind at the moment  :ShakeHead:

Offline Mike Henry

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Re: Otto Langen 1867 Engine Drawings
« Reply #51 on: May 19, 2015, 07:13:29 PM »
Too bad on the castings.  I will probably work from bar stock if I build it.  Nice assembly drawings, by the way.  Were those done in Alibre/GeoMagic?

A couple of questions if you don't mind.  The Lenaz plans don't show any way to attach the gears and other components to the shafts - is the builder expected to drill and tap his/her own set screw holes for that purpose?

Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #52 on: May 19, 2015, 07:14:16 PM »
:embarassed: We are learning how to make little engines together.

And my new friend has made is making a sizable dent in my funds so I am trying to recover from the shock of having a fella around again before I invest in lots more money in castings. And someone tried telling me women are expensive  :ShakeHead:

My supplier's excuse is he still looking for a foundry, nothing to do with him buying more WW1 aircraft books  ::).

Jo
Enjoyment is more important than achievement.

Offline Dave Otto

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Re: Otto Langen 1867 Engine Drawings
« Reply #53 on: May 19, 2015, 07:15:43 PM »
Hi Mike

If you look back at page one of this thread you will see that I'm in about the same place as you. I modeled most of the engine in SW a number of years ago and still hope to build it some day.

Which parts are you having problems with?

Dave

Offline Jasonb

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Re: Otto Langen 1867 Engine Drawings
« Reply #54 on: May 19, 2015, 07:35:30 PM »
I think tapered gib head keys would be more in keeping with the prototype to hold the gears etc to the shafts, you can make out a couple of keys on teh attached.

One problem with our drawings is that I drew the bottom in Alibre and jo did most of teh top in te same then had to change to Cubify and I can't open her files as they are a newer version.

I'm not in a rush to build this one and may even opt to make it somwhere between teh published drawings and teh one we have made castings for as that would suit my machines better.

Offline Mike Henry

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Re: Otto Langen 1867 Engine Drawings
« Reply #55 on: May 19, 2015, 07:36:36 PM »
I'm mostly having problems figuring out how the gears and ratchet wheel are affixed to the shafts.  I'm assuming that setscrews are used but the drawings don't show any holes in the gears or ratchet wheel for that purpose so I'm not sure what was intended.  I'm a bit new to engine building but from what friends have said, engine plans sometimes leave a fair bit to the builder's imagination.

Mike

Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #56 on: May 19, 2015, 07:39:03 PM »
The version in ME has keys fitted.

Jo
Enjoyment is more important than achievement.

Offline Mike Henry

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Re: Otto Langen 1867 Engine Drawings
« Reply #57 on: May 19, 2015, 07:49:24 PM »
OK, tapered gib keys hadn't occurred to me so I'll consider that option after researching it a bit.  How fiddly are those to get right?

I've been using Alibre/GM for several years now but like where Onshape is headed, aside from the cloud-only aspect.  Onshape is still in beta and has no drawing capability so I'd probably do any detail drawings in GeoMagic from exported Onshape files.  I'd prefer a different dimensioning approach to the one Lenaz did so at least some of the parts will be redrawn.  This would be my 1st internal combustion engine and I gather that the Otto-Langen is not for beginners, so I'm still undecided on whether or not to build it.

Offline gary.a.ayres

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Re: Otto Langen 1867 Engine Drawings
« Reply #58 on: November 24, 2020, 10:45:07 PM »
OMG... this is beautiful.

An old friend of mine, John Day, who sadly is no longer with us  :'(, had a friend who had one of these Otto Langen engines:







Offline Alyn Foundry

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Re: Otto Langen 1867 Engine Drawings
« Reply #59 on: November 29, 2020, 12:01:42 PM »
An old friend of mine, John Day, who sadly is no longer with us  :'(, had a friend who had one of these Otto Langen engines:





John diligently drew it up and made a model of this own, which had a lovely motion but at the time I was not interested in building one as it runs on Actelene... Time has moved on and I have a growing desire  :mischief: but sadly John is no longer around so I am unable to sweet talk him out of his drawings  :(

I understand that over the years two other models of this type of engine have been made one a 1/8th scale and a 1/6th scale (ignoring the 3/4 scale  :Love: that is in a museum). I understand that the designer of one of these models (Johnnie Lenaz) has now gone the way of my good friend John.. One of my club members built one of these engines but has subsequently lost the drawings  :toilet_claw:  :hammerbash:  :rant: :hellno:  :'(

So the question is does anyone know where I could acquire a set of drawings for one of these models.

Jo

Hi Jo.

I picked up on this early last week as a member " bumped " the topic.

Was John from the Guildford area by any chance? Did he also make a Dynamo?

Cheers Graham.

Offline Jo

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Re: Otto Langen 1867 Engine Drawings
« Reply #60 on: November 29, 2020, 01:21:33 PM »
Was John from the Guildford area by any chance? Did he also make a Dynamo?

Yes, he lived just down the road at Hazelmere.

I can imagine if there was a design for a dynamo he would have made it. When they cleared his models out I recall over 20 went to Auction  :'(

Jo
Enjoyment is more important than achievement.

Offline Alyn Foundry

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Re: Otto Langen 1867 Engine Drawings
« Reply #61 on: November 29, 2020, 02:05:45 PM »
Thanks Jo, I thought it rang a bell.

John visited me at Ffordd Lerry a day I shall never forget. My mother had passed away not even 10 hours previous to his visit. I don't remember who accompanied him now but it might have been Tony Harcombe?
Tony has a small engine museum that has one of the only known running versions of the Preistman Oil engine.

John was definitely a talented engineer and a lovely personality, despite my obvious grief we spent an interesting Saturday afternoon together.

I ended up buying his Dynamo patterns and the rights to produce but like many other projects it got shelved. My goodness that was 32 years ago just gone.... ( October )

Cheers Graham.