CUT BENCH MARK

Unusual markings, logos and symbols around the city
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liits
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Re: CUT BENCH MARK

Postby liits » Fri 22 Apr, 2016 12:15 am

New York St.jpg
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The limescale / saltscale or whatever the white staining is on the bricks has receded a bit since I photographed the BM almost exactly five years ago. I wonder how the brickwork was damaged? It doesn't look like .
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Brunel
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Re: CUT BENCH MARK

Postby Brunel » Mon 30 May, 2016 11:03 am

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Re: CUT BENCH MARK

Postby liits » Tue 31 May, 2016 10:32 am

Something that I've just thought of..... There must have been something in the 1841 OS Act [or later - although I can't find the particular paragraph] that permitted the OS to cross your land and or to start chopping away at your building. I couldn't imagine it happening these days!
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Re: CUT BENCH MARK

Postby warringtonrhino » Tue 31 May, 2016 1:04 pm

In my opinion one of the best books on mapping is Ordnance Survey map makers to Britain since 1791
here is page 129
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Brunel
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Re: CUT BENCH MARK

Postby Brunel » Sun 05 Jun, 2016 11:04 pm

CUT BENCH MARK-LS17

This may be an "imposter", I cannot find any reference to it on any of the old 6" maps that are online

http://www.openstreetmap.org/?mlat=53.8 ... 85/-1.5380


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mhoulden
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Re: CUT BENCH MARK

Postby mhoulden » Sun 05 Jun, 2016 11:37 pm

Section 2 of the OS Act 1841 grants the powers needed, in return for fair compensation: http://www.legislation.gov.uk/ukpga/Vic ... /section/2
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Re: CUT BENCH MARK

Postby liits » Mon 06 Jun, 2016 9:54 am

I had a reply from the OS this morning in response to my questions; Did the OS cast its own Flush Bracket plates or were they sub-contracted out, also about the piece of legislation allowing them to cross private land and either cut BM's or affix plates, also, was there ever any problems with people refusing access.

1- the flush brackets were produced by Ordnance Survey. Attached is a photograph from our image library of the OS workshops on London Road, Southampton in 1917 showing the production of brass flush brackets.
OS Workshop with Watermark.jpg
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2- This relates to Section 2 of the Ordnance Survey Act 1841 as amended which refers to our rights under the Act:
“ after due notice . . . to enter land for the purpose of fixing any mark or object to be used in the survey, or any post, stone, or boundary mark whatsoever . . . “
However, we should point out that entering land in order to cut bench marks or fix flush brackets are activities that are no longer carried out by Ordnance Survey as we no longer maintain them and reply on GPS technology for our field work.
We don’t hold any details of property owners refusing access in the past.


I would guess that the photograph, while it does indeed show a workshop, I don't think that it has much to do with either the pattern making for FB plaques or their casting. If anything they may actually be making, among other things, the surveying brackets themselves.
warringtonrhino
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Re: CUT BENCH MARK

Postby warringtonrhino » Mon 06 Jun, 2016 11:45 am

Ordnance Survey map makers to Britain since 1791 ( fantastic book0 here is page 91, which shows how the metal plates were leveled and explains a fundamental bench mark.
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Brunel
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Re: CUT BENCH MARK

Postby Brunel » Mon 06 Jun, 2016 4:41 pm

Well into Anorak territory here....!!

http://www.bench-marks.org.uk/
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Re: CUT BENCH MARK

Postby liits » Mon 06 Jun, 2016 7:27 pm

Brunel wroteColonWell into Anorak territory here....!!

http://www.bench-marks.org.uk/


I've used that site a lot and its brilliant but a bit clunky. At one time - and this may still be the case, its most prolific contributor was a certain Roger Templeman. None of my photographic contributions to the London BM's flickr page had not been visited by him. I didn't have to use the database to know this, he marked every BM he had logged by ringing it with a yellow wax crayon. That man certainly got about a bit!

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