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Thread: what is this used for
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18th April 2008, 08:58 PM #1SENIOR MEMBER
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what is this used for
looks like some sort of scraper made by moore and wright sheffield england
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18th April 2008 08:58 PM # ADSGoogle Adsense Advertisement
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18th April 2008, 09:10 PM #2
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18th April 2008, 09:20 PM #3SENIOR MEMBER
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well here i was thinking i found some kind of special wood working tool ah well one day some one will put it in a museum when im gone ( not yet for a while tho )
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18th April 2008, 09:20 PM #4
As Bob stated its a bearing scraper used for scraping white metal and or bronze bearings.
They don't get a lot of use these days unless you are restoring or repairing old machinery .There are a number of different types that make up a set.
Kev."Outside of a dog a book is man's best friend ,inside a dog it's too dark to read"
Groucho Marx
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18th April 2008, 09:28 PM #5SENIOR MEMBER
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thanks guys well if theres any antique machinery restorers that would like it let me know i dont think ill be fixing old windmills any more
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27th April 2008, 01:44 AM #6
also used as a printmakers scraper for lightening mezzotints or aquatints
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27th April 2008, 07:46 AM #7
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29th April 2008, 12:12 AM #8
That's because scraping bearings or a flat surface is a boring mind numbing job ,and I don't blame anyone for not wanting to do it.
All my scrapers are safely locked away in a tool box , pushed right to the back of the mezzanine in my shed.
They don't teach scraping at trade school ,and didn't when I did my tech , I learnt it on the job from an old fitter who did an apprenticeship in Yugoslavia as a machine bed scraper.
With modern materials and precision surface grinding processes there is really no call for hand scraping these days ,unless you want a fancy patterned finish on your lathe bed or surface table.
Restoring old machinery is another story .
Kev."Outside of a dog a book is man's best friend ,inside a dog it's too dark to read"
Groucho Marx
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29th April 2008, 02:25 AM #9
IIRC, Lindsay Books ( http://www.lindsaybks.com/ ) has a book with a title something like "Secrets of Hand Scraping." Ah, here 'tis: http://www.lindsaybks.com/bks9/hscrape/index.html
JoeOf course truth is stranger than fiction.
Fiction has to make sense. - Mark Twain
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29th April 2008, 09:55 AM #10
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29th April 2008, 09:54 PM #11
Yes , I have seen a number of patterns scraped into metal surfaces that look like basket weave .
Never been good at getting patterns myself , but did a lot of scraping when I worked in the maintenance sections at Simpson Pope where I did my apprentice ship.
Spent many hours scraping machine slides and crank bearings in Hiene metal stamping presses and associated machinery .
We used to pour and machine the white metal bearings as well for these presses .The Islington railway yard workshop scrap heap was a good source for old rail wagon axles for machining the single throw crankshafts for them as well.
I did a tool room 3 foot square marking out table and a couple of engine lathe restorations.
Last one I did was a 1916 manufactured Dean Smith and Grace ,took over 18 months to get it back to working condition .
Old man Simpson was tight with money when buying machinery and would buy second hand when ever he could ,some of the crap he wanted restored took ages to get back to use able condition, the work was done by the apprentices with supervision by the senior tradesmen.
Most parts were custom made as they were not available or Simpson was too stindgy to buy them.
A lot of my scrapers I made myself , from tool steel ,and old files ,some have tungsten carbide silver soldered on and ground to shape as cutting edges .
Maybe one day I'll dig my scrapers out and scrape a plane body flat and square, I won't be rushing into the task though.
Kev."Outside of a dog a book is man's best friend ,inside a dog it's too dark to read"
Groucho Marx
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30th April 2008, 06:48 PM #12
Only ever knew one fellow with these tools Kev sadly he past away early in my life so never got to see them in use.
I have seen many works produced by the tools on finished products
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30th April 2008, 07:29 PM #13Senior Member
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30th April 2008, 08:45 PM #14
In certain instances bush type bearings either bronze or white metal will carry higher radial loads than roller bearings ,I know white metal bearings are still used in some machinery ,I was mostly referring to machine beds and ways .
The motor gensets I worked on in the power industry were all roller bearings apart from the engine crank mains and bigends.
The gas turbine engines I maintained used a tilt pad bearing ,now that is an interesting concept
Kev."Outside of a dog a book is man's best friend ,inside a dog it's too dark to read"
Groucho Marx
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1st May 2008, 10:22 AM #15