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Author Topic: ENGRAVINGS - Marine Engines  (Read 33117 times)

admin

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ENGRAVINGS - Marine Engines
« on: March 14, 2011, 02:56:14 AM »

I think most of these are marine engines.

« Last Edit: August 01, 2017, 09:29:20 AM by admin »
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admin

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Re: Miscellaneous Marine Engine Engravings
« Reply #1 on: March 14, 2011, 02:58:45 AM »

More marine engravings:

I think most of these are marine engines.
(These are also in the Engravings download section, but are copied here for viewing and discussion)

« Last Edit: August 01, 2017, 09:29:33 AM by admin »
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admin

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Re: Miscellaneous Marine Engine Engravings
« Reply #2 on: March 14, 2011, 02:59:09 AM »

More marine engravings:

I think most of these are marine engines.
(These are also in the Engravings download section, but are copied here for viewing and discussion)

« Last Edit: August 01, 2017, 09:29:47 AM by admin »
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Johnlanark

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Re: ENGRAVINGS - Marine Engines
« Reply #3 on: June 28, 2012, 03:55:37 PM »

That looks like a typical late Herreshoff stationary or circulating engine. There is a drawing of a similar one in "Steamboats & Modern Steam Launches". The MIT Museum holds the works archives. 

The piston is shaped so that condensate drains to the steam ports, and drain cocks aren't needed. The 1885 Herreshoff launch engine that I have been building has the same idea (but is very different otherwise). The valve rod connecting pin will be hollow, but I don't know why it is so long.  Somewhere I think I have a drawing of the bearing at the foot of the dual con rods, it think it just has flats for the rods to be bolted down, and the rods would need to be made absolutely identical in length.

Hope you decide to build one!
John
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Johnlanark

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Re: ENGRAVINGS - Marine Engines
« Reply #4 on: June 28, 2012, 06:12:26 PM »

Sorry no, but there is a dead ringer here...
http://www.newsm.org/steam-engines/herreshoff.html

John
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Johnlanark

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Re: ENGRAVINGS - Marine Engines
« Reply #5 on: June 28, 2012, 09:11:44 PM »

I enquired about a similar "Probably Herreshoff" engine being sold by Preston Steam in England. Kurt Hasselbach the curator at MIT Hart Nautical Collection looked into it for me and advised that the company had never made an engine of the bore and stroke stated. That saved me from having to reinforce my mantelpiece.

It is on this list
  http://www.prestonservices.co.uk/marine.html

John
« Last Edit: August 23, 2013, 02:46:13 PM by PatJ »
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Johnlanark

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Re: ENGRAVINGS - Marine Engines
« Reply #6 on: June 29, 2012, 11:41:01 AM »

What you can see are huge steam ports on the valve face of the intermediate and low pressure cylinders. The slide valves themselves are missing. John
« Last Edit: August 23, 2013, 02:47:08 PM by PatJ »
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