------=_NextPart_000_001B_01C5DE54.1AA112B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I see that my name has been drawn into the title of this discussion, which = was previously "Bell frames". This imparts a personal dimension to the disc= ussion, which was not intended. I am pretty certain that in this case I could argue along the lines I set o= ut in my previous posting till the proverbial cows come home without signif= icant effect, if any. I am content that I am one of those "regularly going into towers" having se= rved three DAC's, two associations and the CCC as a Bells adviser/consultan= t, to which over 2000 carefully prepared reports testify. I am also content= that I have received a reply in appreciation of my previous posting from F= rank Lewis, who wrote the Brasted article. So, it's goodbye from me (on this)........ David Cawley =20=20 ----- Original Message -----=20 From: Roderic Bickerton=20 To: bellhistorians@yahoogroups.com=20 Sent: Monday, October 31, 2005 12:04 PM Subject: [Bell Historians] bellframes, David Cawley You are correct on down/ horizontal thrust and I should have looked up th= e towers and bells handbook sooner. My memory!, getting old. This error results in comparing 5T to 120T as against 2.5T to 120. Incidentally the braking load of a 3/4 rod is likely to be over 6T in the= sort of drawn steel bar to be found in a tie rod. My 3T is would be a reas= onable working load, so that 40 rods, over tightned could achieve well over= 120T. Frames usually have single 5/8" or 16mm, tie rods not 4 rods of 3/4" (19= mm), although 3/4" is found. regarding Kingposts perhaps you would like to look at the RW P 1030 pictu= re again. Near centre there is a bell with chalked on it=20 "12.1.?? Brasted." Immediately to the right of the chalk writing a vertical oil stained post= can be seen, with an angle brace coming to it, not the frame head. The baring for the bell is immediately above it. The next bell on the left, the other side of the same pit, on the left of= the writing but before the image of the wheel can be seen a tie rod next t= o another vertical post, with an angled brace coming to it. If you like to look at P34 of the towers and bells handbook you will see = this is like illustration III not IV, although the braces are straight, or = nearly so, which is much more normal than illustration III. The many short head frames I have seen are not like Illustration II and c= annot be. They are much higher and have spanning beams across the angled braces, es= sential to stabilise the pit widths. I have certainly seen crushed timber, with load spreader plates bent and = drawn into frame heads and headstocks, to say nothing of crushing under hea= dstock cross bars. No one regularly going into towers will not have seen th= is problem.=20 Admittedly not a show stopping issue unless there is also serious decay = or infestation as well. SPONSORED LINKS Craft hobby Hobby and craft supply Ringing=20=20 Bell=20=20 ---------------------------------------------------------------------------= --- YAHOO! GROUPS LINKS=20 a.. Visit your group "bellhistorians" on the web. =20=20=20=20=20=20 b.. To unsubscribe from this group, send an email to: bellhistorians-unsubscribe@yahoogroups.com =20=20=20=20=20=20 c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Servic= e.=20 ---------------------------------------------------------------------------= --- ------=_NextPart_000_001B_01C5DE54.1AA112B0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I see that my name has been drawn into the= title of=20 this discussion, which was previously "Bell frames". This imparts a=20 personal dimension to the discussion, which was not intended.
I am pretty certain that in this case=  I=20 could argue along the lines I set out in my previous posting till= the=20 proverbial cows come home without significant effect, if any.
I am content that I am one of those "regul= arly=20 going into towers" having served three DAC's, two=20 associations and the CCC as a Bells adviser/consultant, to which over 2000= =20 carefully prepared reports testify. I am also content that I have received = a=20 reply in appreciation of my previous posting from Frank Lewis, who wrote th= e=20 Brasted article.
So, it's goodbye from me (on=20 this)........
 
David Cawley
  
----- Original Message -----
Fro= m:=20 Roderi= c=20 Bickerton
To: bellhistorians@yahoogroups= .com=20
Sent: Monday, October 31, 2005 12:= 04=20 PM
Subject: [Bell Historians] bellfra= mes,=20 David Cawley

You are correct on down/ horizontal thru= st and I=20 should have looked up the towers and bells handbook sooner. My memory!,=20 getting old.
This error results in comparing 5T = to 120T=20 as against 2.5T to 120.
Incidentally the braking load of a 3/4 r= od is=20 likely to be over 6T in the sort of drawn steel bar to be found in a tie = rod.=20 My 3T is would be a reasonable working load, so that 40 ro= ds,=20 over tightned could achieve well over 120T.
Frames usually have single 5/8" or 16mm,= tie rods=20 not 4 rods of  3/4" (19mm), although 3/4"=20 is found.
 
regarding Kingposts perhaps you would like to look at the RW P 1030 picture= =20 again.
Near centre there is a bell with chalked= on it=20
"12.1.??
Brasted."
Immediately to the right of the chalk wr= iting a=20 vertical oil stained post can be seen, with an angle brace coming to it, = not=20 the frame head.
The baring for the bell is immediately a= bove=20 it.
The next bell on the left, the other sid= e of the=20 same pit, on the left of the writing but before the image of the wheel ca= n be=20 seen a tie rod next to another vertical post, with an angled brace coming= to=20 it.
If you like to look at P34 of the towers= and=20 bells handbook you will see this is like illustration III not IV,=20 although the braces are straight, or nearly so, which is much more normal= than=20 illustration III.
The many short head frames I have seen a= re not=20 like Illustration II and cannot be.
They are much higher and have spanning b= eams=20 across the angled braces, essential to stabilise the pit=20 widths.
 
I have certainly seen crushed timber, wi= th load=20 spreader plates bent and drawn into frame heads and headstocks, to say no= thing=20 of crushing under headstock cross bars. No one regularly going into= =20 towers will not have seen this problem.
Admittedly not  a show stoppin= g issue=20 unless there is also serious decay or infestation as well.
------=_NextPart_000_001B_01C5DE54.1AA112B0--