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Post subject:Elbow Pattern
 Posted: Aug 13, 2007 - 03:44 AM #6646
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Joined: Aug 29, 2006
Posts: 12
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| We have a ton of elbow patterns in the shop where I work. On the pattern, there is a few different "v" notches on the bottom edge of the pattern. Someone once said that is for determining the throat radius of an elbow. Anybody know about this? How are they used? |
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Post subject:RE: Elbow Pattern
Posted: Aug 13, 2007 - 12:24 PM #6649
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Webmaster
Joined: May 13, 2003
Posts: 1305
Location: Waukesha
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Could be, anyway to show us a picture of these patterns?
Elbow Patterns By Kidder on page 63 shows some notches, is this similar to what you're referring to?
http://www.thesheetmetalshop.com/pdf_ma ... Kidder.pdf |
_________________
"If you make your job important it is quite likely to return the favor" Author Unknown
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Post subject:RE: Elbow Pattern
Posted: Aug 14, 2007 - 10:10 PM #6650
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Power User
Joined: Dec 31, 2003
Posts: 289
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| The notches are there because this is a pattern for a drop cheek elbow and this is were you would make your brake for the set down but I could be wrong. Like Bud said I got to see a pic. Don't forget the pop rivet at the begining. No blood letting. Bob |
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Post subject:RE: Elbow Pattern
Posted: Aug 17, 2007 - 04:13 AM #6661
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Joined: Aug 29, 2006
Posts: 12
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Bud,
Here is the pic of the pattern. Notice, there are two notches on the lefthand side. This is for a 6" elbow, we have patterns all the way up to 60", and all the patterns have at least a couple of these notches.
Andrew |
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Post subject:RE: Elbow Pattern
Posted: Aug 24, 2007 - 02:21 AM #6679
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Power User
Joined: Dec 31, 2003
Posts: 289
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| Thats is the weirdest looking 6" elbow pattern I've ever seen? That looks like a machine cover of some kind and I wasn't to far off. The notches appear to be an indicader for a drop cheek of sorts or true leanth. Bob |
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Post subject:RE: Elbow Pattern
Posted: Nov 03, 2007 - 02:40 AM #6813
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Joined: Nov 03, 2007
Posts: 3
Location: Pahrump, NV
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| Off subject, but I haven't seen that spangle in years ! |
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Post subject:RE: Elbow Pattern
Posted: Nov 10, 2007 - 03:33 AM #6835
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Power User
Joined: Apr 04, 2007
Posts: 90
Location: Florida
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pahrump wrote:
Off subject, but I haven't seen that spangle in years !
Im a youngster compared to some of you an your so right...not in years! |
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Post subject:RE: Elbow Pattern
Posted: Nov 11, 2007 - 02:27 AM #6837
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Power User
Joined: May 16, 2005
Posts: 172
Location: Atlantic, Iowa
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Geez, now I do feel old, I still have a sheet of that stuff that I am using for a cover sheet for my cold roll.  |
_________________
Stickman,
The thin tinman.
www.martinsheetmetal.com
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Post subject:RE: Elbow Pattern
Posted: Nov 13, 2007 - 02:51 AM #6848
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Power User
Joined: Nov 13, 2007
Posts: 112
Location: Omaha, NE
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Wow, I have no idea what I'm looking at in that pic. Anyone have a pic of the finished product?
There are so many complex things people have done with sheet metal it makes my head spin. |
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Post subject:RE: Elbow Pattern
Posted: Apr 03, 2008 - 01:12 AM #7450
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Joined: Apr 01, 2008
Posts: 25
Location: Humboldt County
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I believe the pic shows the end of the gore, that angled cutout which is roundsd, looks like it's used to hang the pattern from a nail in the wall...
The v-notches he's asking about are where the seam of the gore would be...
Maybe they are rivet guides or perhaps swedging/crimping marks for assemblying each gore? |
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Dean in Eureka, CA
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