[Bell Historians] In defence of RHS!

[Andrew Higson]

We were supplied with a load of RHS when we were doing the job at Easton
on the Hill. They had persuaded Corby steel works to donate it. What
they delivered was sufficient for about 6 bellframes - quantity hadn't
been specified! It was all 12mm thick stuff and more robust than what we
would have used. Several projects benefited from this stock.
 
Naturally it was galvanised inside and out and I can't see it rusting
away any time soon. Having been sceptical about its use prior to this we
are now sold on the idea and have used RHS on a number of subsequent
occasions.
 
I'm with Matthew on this one.
 
Andrew
 
-----Original Message-----
From: bellhistorians at yahoogroups.com
[mailto:bellhistorians at yahoogroups.com] On Behalf Of
matthewhigby at 4KOQClsH-PjUSKLCRmeFpkV_X_gbYQTo5_3OJ7RK42svS_bqff8ixt4vNkE_4398nnpNAGtymRGpbA.yahoo.invalid
Sent: 08 February 2006 21:26
To: bellhistorians at yahoogroups.com
Subject: [Bell Historians] In defence of RHS!


In a message dated 08/02/2006 20:37:07 GMT Standard Time,
davidbryant at qk8RGWIqUY2f_AEdW2FEEvwdusCr4Qki3qhyEzkSPRqvfZQqY4ljJBk-s4EO9Gx48Z-XvKcIKgxCrLm4QZbl1w.yahoo.invalid writes:

Are there many frames of tubular steel? Most of those I've seen have 
been made predominantly of channel. RHS is common for headstocks - I'm 
not a fan!

 
There are a few frames of tubular steel, I am pretty sure that Taylors
designed one a while ago. It was built by a firm who specialised in the
use of tubular steel - free of charge from memory. I am sure ADH will be
able to confirm this.
 
Some modern H section framesides are also made of RHS (we are installing
one shortly at Preston by Weymouth - the lower tier is H's). All box
section has to be appropriately  drilled for the galvanizing process -
so that it is galvanized on the inside surfaces too.
 
Is there really any evidence that steel headstocks are more likely to
fail due to fatigue? My personal view is that a headstock of galvanized
RHS which has been either powder coated or primed and painted, is belt
and braces above a cast iron stock from a corrosion point of view.
There are heaps of steel headstocks from the early 20th Century that are
still doing good service, and in much better condition than some cast
iron ones that I have seen.
 
I suppose that it mainly comes down to looks, cast iron looking much
more stylish than RHS - a bit of a Rolls Royce vs Ford Escort scenario -
they both do the same job, but one looks more stylish and costs a lot
more! 
RHS is more robust than grey cast iron - I have lost count of the number
of stay sockets I have seen cracked or broken out, caused by improper
fitting of replacement stays..............."Oh one bolt will be enough
Jim - we had better get a move on, practice starts in 10 mins" and all
that............
 
The steel corrosion at Rosscarbery is the most extensive that I have
ever seen - I have kept some bits as souvenirs! However it was only
extensive where it was in direct line with the sea air (near the
windows), or in contact with the tower walls.
 
The slating of RHS on this list is undeserved, I have seen no compelling
evidence (as yet) to convince me otherwise.
 
Nuff from me!
 
Matthew (Who drives an Escort Van and supplies both RHS and Cast iron
headstocks ;-)

 
Matthew Higby & Co Ltd,
Church Bell Engineers.
Jasmine Cottage,
The Street,
Chilcompton,
Bath,
BA3 4HN.


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