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Office of Steam Forum for Model &amp
;amp;amp;amp;amp;amp; Toy Steam Gas &amp
;amp;amp;amp;amp;amp;amp; Hot Air Engines
(HTM) https://officeofsteamforum.createaforum.com
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(DIR) Return to: Restorations
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#Post#: 16181--------------------------------------------------
Re: Beam Engine gift.
By: Tony Bird Date: October 17, 2019, 12:15 pm
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Hi,
Progress so far.
(HTM) https://youtu.be/XVxtcx8DvE0
Regards Tony.
#Post#: 16191--------------------------------------------------
Re: Beam Engine gift.
By: Stoker Date: October 17, 2019, 8:49 pm
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Great Movie!
Impressive salvage effort!!!
#Post#: 16215--------------------------------------------------
Re: Beam Engine gift.
By: Nick Date: October 18, 2019, 9:28 am
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Yes, a very good moving showing your work so far 8)
#Post#: 16412--------------------------------------------------
Re: Beam Engine gift.
By: Hero Date: October 23, 2019, 1:22 am
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"I rather suspect that there will be more holes plugged and
drilled again than original when this project is finished."
Keep plugging away at it, Tony!
#Post#: 16413--------------------------------------------------
Re: Beam Engine gift.
By: Tony Bird Date: October 23, 2019, 9:49 am
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Hi,
Before continuing working on new parts of the model what has
already been done has been tidied up: the flywheel has been
skimmed, the crankshaft bearing pedestals along with the column
have been painted, the wooden base of the column has been
varnished, the eccentric and its sheaf have been fitted on the
crankshaft and any temporary screws have been replaced.
With this done a new bolt to hold the connecting rod to the beam
has been made. The parallel motion has been cleaned up before
checking that it works. A suitable cast resin figure of an
engine driver has been bought and painted by Mrs. B. This is as
likely as far as it will go for a bit as I am now concentrating
on building a new portable 16 mm scale model railway layout;
however I am bound to get a bit board or have to wait for some
materials when some further work will be done on the beam
engine.
[attachimg=1]
[attachimg=2]
[attachimg=3]
Regards Tony.
#Post#: 17084--------------------------------------------------
Re: Beam Engine gift.
By: Tony Bird Date: November 14, 2019, 11:17 am
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Hi,
Well this morning it was cold and damp in Cardiff and while I
waited for the heater in the shed to do its bit, I had a look at
the beam engine. I was a little concerned as the flywheel is a
bit on the small side for a beam engine that would usually work
quite slowly. So, I decided to check how well the beam
balanced; the connecting rod and crank on one side and the
parallel motion and piston on the other. Well by accident or
design it is pretty well balanced, the crank and connecting rod
being possibly a little heavier. It is close enough that it is
not worth weighting the flywheel to compensate until it has run
and then it might not be necessary. The piston and its rod are
interesting the piston is screwed off not the big end to remove
the piston rod from the cylinder cover. Anyway, most of the day
has been spent build the model railway layout. Work will only be
done on the beam engine if I get time or get bored with working
on the layout.
[attachimg=1]
[attachimg=2]
[attachimg=3]
[attachimg=4]
[attachimg=5]
[attachimg=6]
Regards Tony.
#Post#: 17101--------------------------------------------------
Re: Beam Engine gift.
By: Nick Date: November 14, 2019, 5:57 pm
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Looking good and thanks for the update. Now that you mention it,
the flywheel does look a bit small...
#Post#: 20171--------------------------------------------------
Re: Beam Engine gift.
By: Tony Bird Date: January 30, 2020, 12:14 pm
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Hi,
Its is over two months since I posted in this thread, having
spent those months doing a lot of repetitive work building base
boards for a model railway layout this comes as a bit of light
relief. I have a few days before we leave for a warmer climate
so how far I will get towards finishing this restoration I don’t
know. It will depend on what has to be done.
The last plastic bag containing the cylinder and the remaining
valve gear parts has been opened and the contents taken apart.
Like the other parts of the beam engine they are not
particularly well made.
Like the beam the cylinder is a fabrication and also like the
other parts uses BA threads so the model was probably made in
the UK and after 1903 when the British Association adopted the
thread. As the sealant used instead of gaskets blocked one of
the cylinder’s steam passageways after the engines last assembly
it probably never would have run in fact there is no evidence
that the engine ever ran. Attached photographs of the cylinder
and valve gear parts being taken apart. Tomorrow I hope to
start on the cleaning up and deciding what repairs are or not
are necessary. There is no evidence after taking apart that the
model ever worked so getting the cylinder positioned under the
beam and the valve gear in place never mind working might be
interesting.
[attachimg=1]
[attachimg=2]
[attachimg=3]
[attachimg=4]
[attachimg=5]
[attachimg=6]
[attachimg=7]
[attachimg=8]
[attachimg=9]
Regards Tony.
#Post#: 20238--------------------------------------------------
Re: Beam Engine gift.
By: Tony Bird Date: February 1, 2020, 3:50 am
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Hi,
Well, I made quite a lot of progress yesterday: all the
brass/bronze bits have been cleaned and the rusty steel work
blackened. The cylinder has been lapped; out of interest its
stroke is 1.3/4” and bore 5/8” (46 x 16 mm), the cylinder port
faces and valve have been polished. The lagging surprisingly;
went back on the cylinder, gaskets were made and the engine was
assembled. The parts of the engine went back together quite
well the positioning of them on the wooden base took some time,
they were first held by wood screws to check alignment, when
happy these screws were replaced by screws with nuts. This took
some time as the beam had to be removed a few times to allow the
base to be drilled. I am not keen on wooden rather than metal
bases as the drill holes tend to wander if drilling jigs aren’t
used also the wood can contract allowing the parts to become
loose at a later date. With all the valve gear connected the
engine was turned over using an electric drill, there was no
major binding there was a bit of a knock, but the big end
bearing is a bit over size, if it irritates me, I will line it.
It was getting late and from experience I know that trying to
time an engine isn’t sensible; it can be frustrating at the best
of times, maybe today?
[attachimg=1]
[attachimg=2]
[attachimg=3]
[attachimg=4]
[attachimg=5]
[attachimg=6]
[attachimg=7]
[attachimg=8]
Regards Tony.
#Post#: 20248--------------------------------------------------
Re: Beam Engine gift.
By: Tony Bird Date: February 1, 2020, 11:08 am
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Hi,
(HTM) https://youtu.be/jkGxGVEZVJI
Regards Tony.
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