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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#41
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Dave Hinz wrote:
On 29 Dec 2004 20:10:08 GMT, Ignoramus25177 wrote: I have a serious question. I have a chain hoist and hoist various things like generators, UPSes etc. I want some serious introduction into safe rigging methods. I do make attempts at making rigging safe and so far avoided accidentw, but feel that my skills are sorely lacking. I already read DOE standard 1090, but there is not much on rigging methods. I have (but not here) a small handbook called "The Rigger's Handbook". Tons of good real-life information in there. We got it where I used to work, when we took a crane safety course. Maybe someone here knows the book. Dave Hinz http://www.hanessupply.com/images/RiggersPDF_200406.pdf pdf 148 pages -- Martin Eastburn, Barbara Eastburn @ home at Lion's Lair with our computer NRA LOH, NRA Life NRA Second Amendment Task Force Charter Founder |
#42
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On 29 Dec 2004 20:10:08 GMT, Ignoramus25177
wrote: I have a serious question. I have a chain hoist and hoist various things like generators, UPSes etc. I want some serious introduction into safe rigging methods. I do make attempts at making rigging safe and so far avoided accidentw, but feel that my skills are sorely lacking. I already read DOE standard 1090, but there is not much on rigging methods. i http://www.logbuilding.org/Hoists.ch3.pdf http://www.logbuilding.org/GinPoles.ch5.pdf http://www.logbuilding.org/Anchors%26Guys.ch4.pdf Hunt around on the internet for Rigging, TM 5-725 the US Army manual on all such matters. It can be found via PDF format for free downloading. Gunner "War is an ugly thing, but not the ugliest of things. The decayed and degraded state of moral and patriotic feeling which thinks that nothing is worth war is much worse. The person who has nothing for which he is willing to fight, nothing which is more important than his own personal safety, is a miserable creature and has no chance of being free unless made and kept so by the exertions of better men than himself." - John Stewart Mill |
#43
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F-16's are moved by a pair of monorail cabs working in tandem. Both
cabs are rated at 15,000+ # working load. The lift is done by a single bridle from each cab with a spacer bar to assure a vertical lift on each lead. The fuselage at that point has the gear installed but no wings or stabilators. It is lowered onto a special dolly for the rest of it's time in the factory. When it moves to the paint shop and on to the flight line, it's completely on it's gear. Going back to 1986, I only know of one complete airframe ever being dropped and that was one in the ground vibration test rig. It fell when there was an equipment failure in the test rig. Craig C. |
#44
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F-16's are moved by a pair of monorail cabs working in tandem. Both
cabs are rated at 15,000+ # working load. The lift is done by a single bridle from each cab with a spacer bar to assure a vertical lift on each lead. The fuselage at that point has the gear installed but no wings or stabilators. It is lowered onto a special dolly for the rest of it's time in the factory. When it moves to the paint shop and on to the flight line, it's completely on it's gear. Going back to 1986, I only know of one complete airframe ever being dropped and that was one in the ground vibration test rig. It fell when there was an equipment failure in the test rig. Craig C. |
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On Thu, 30 Dec 2004 05:29:54 GMT, "Martin H. Eastburn"
calmly ranted: http://www.hanessupply.com/images/RiggersPDF_200406.pdf pdf 148 pages The last 20 or so of the 148 pages look like rigger's info, but the pictures of all the rigging toys makes it an interesting read. The Rigging Manual that Robert sells on CD is an Army manual. -- Save the Endangered ROAD NARROWS! -|- www.diversify.com Ban SUVs today! -|- Full Service Websites |
#47
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Find someone working a construction job as a millwright, a rigger, or as an
ironworker, and they are sure to have access to "The Rigger's Handbook", that you could surely get for a beer or two. RJ "Ignoramus25177" wrote in message ... I have a serious question. I have a chain hoist and hoist various things like generators, UPSes etc. I want some serious introduction into safe rigging methods. I do make attempts at making rigging safe and so far avoided accidentw, but feel that my skills are sorely lacking. I already read DOE standard 1090, but there is not much on rigging methods. i |
#48
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Ignoramus25901 wrote:
thanks, good stuff. Will look for that manual. http://atiam.train.army.mil/portal/application?namespace=viewdoc&origin=mil.army.atsc .ptas.atia.servlet.viewdoc.ViewDocServlet.servlet& event=select.page&action=altfmt&docId=296944-1 Kevin Gallimore |
#49
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On Sat, 01 Jan 2005 23:23:28 -0500, axolotl
wrote: Ignoramus25901 wrote: thanks, good stuff. Will look for that manual. http://atiam.train.army.mil/portal/application?namespace=viewdoc&origin=mil.army.atsc .ptas.atia.servlet.viewdoc.ViewDocServlet.servlet& event=select.page&action=altfmt&docId=296944-1 Kevin Gallimore Many thanks Kevin. Gunner "War is an ugly thing, but not the ugliest of things. The decayed and degraded state of moral and patriotic feeling which thinks that nothing is worth war is much worse. The person who has nothing for which he is willing to fight, nothing which is more important than his own personal safety, is a miserable creature and has no chance of being free unless made and kept so by the exertions of better men than himself." - John Stewart Mill |
#50
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On Sat, 01 Jan 2005 23:23:28 -0500, axolotl
calmly ranted: Ignoramus25901 wrote: thanks, good stuff. Will look for that manual. http://atiam.train.army.mil/portal/application?namespace=viewdoc&origin=mil.army.atsc .ptas.atia.servlet.viewdoc.ViewDocServlet.servlet& event=select.page&action=altfmt&docId=296944-1 I stumbled upon an Audel Millwright's and Mechanic's Guide at the library last week and had a chance to look at it last night. There's a lot of info stuffed into a 5x7x3" book of 952 pages! -- Save the Endangered ROAD NARROWS! -|- www.diversify.com Ban SUVs today! -|- Full Service Websites |
#51
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On Sat, 01 Jan 2005 23:23:28 -0500, axolotl
wrote: Ignoramus25901 wrote: thanks, good stuff. Will look for that manual. http://atiam.train.army.mil/portal/application?namespace=viewdoc&origin=mil.army.atsc .ptas.atia.servlet.viewdoc.ViewDocServlet.servlet& event=select.page&action=altfmt&docId=296944-1 Kevin Gallimore I think I have a copy of the Rigger's Handbook at work. I'll check tomorrow, and note the publisher, etc. I had the safety contact get some when we set up the new warehouse. The lead guy had a 2 ton electric chain fall put in to lift heads and agitators off our small vessels. It was obvious none of the techs (or engineers for that matter) knew any of the requirements about tagged and inspected lifting equipment, knowing loads, working limits on chokes, etc. I think I've written here before about getting a rude education in the importance of proper rigging when the techs on another project dropped a 5-1/2 ton cell hatch cover about 3 ft. away from me. Got my attention. Pete Keillor |
#52
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On Sun, 02 Jan 2005 09:09:36 -0800, Larry Jaques
wrote: On Sat, 01 Jan 2005 23:23:28 -0500, axolotl calmly ranted: Ignoramus25901 wrote: thanks, good stuff. Will look for that manual. http://atiam.train.army.mil/portal/application?namespace=viewdoc&origin=mil.army.atsc .ptas.atia.servlet.viewdoc.ViewDocServlet.servlet& event=select.page&action=altfmt&docId=296944-1 I stumbled upon an Audel Millwright's and Mechanic's Guide at the library last week and had a chance to look at it last night. There's a lot of info stuffed into a 5x7x3" book of 952 pages! The Audel's guides are full of good stuff. Best of all, you can often pick them up cheap in used book stores. I'm not sure I'd follow the practices recommended in their Electrician's Guides (from the 50s or before) but the others are extremely useful. --RC "Sometimes history doesn't repeat itself. It just yells 'can't you remember anything I've told you?' and lets fly with a club. -- John W. Cambell Jr. |
#53
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On Sun, 02 Jan 2005 13:41:33 -0500, Peter T. Keillor III
wrote: I think I've written here before about getting a rude education in the importance of proper rigging when the techs on another project dropped a 5-1/2 ton cell hatch cover about 3 ft. away from me. Got my attention. Try dropping a 250 pound welded steel, rectangular cover into a congested high voltage manhole. The delicate touch takes on a whole new meaning. Gerry :-)} London, Canada |
#54
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On Sun, 02 Jan 2005 09:09:36 -0800, Larry Jaques
wrote: I stumbled upon an Audel Millwright's and Mechanic's Guide at the library last week and had a chance to look at it last night. There's a lot of info stuffed into a 5x7x3" book of 952 pages! My copy is the 1945 reprint of the 1940 edition - a fascinating 1167 page book! Gerry :-)} London, Canada |
#55
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On Sun, 02 Jan 2005 19:23:05 -0500, Gerald Miller
wrote: On Sun, 02 Jan 2005 13:41:33 -0500, Peter T. Keillor III wrote: I think I've written here before about getting a rude education in the importance of proper rigging when the techs on another project dropped a 5-1/2 ton cell hatch cover about 3 ft. away from me. Got my attention. Try dropping a 250 pound welded steel, rectangular cover into a congested high voltage manhole. The delicate touch takes on a whole new meaning. Gerry :-)} London, Canada Yikes! That'll give you religion. Must've been like the time the rural distribution power line finally arced out after the pole burned for a while after a lightning strike. I was a teenager, and was in our barn when I heard something that sounded like the world's biggest arc welder. When I ran outside, the thing was throwing huge pink and green discharges (copper plasma?) all over the place. I took off the other way, scooted through the barbed wire fence and kept running until the line burned in two and fell on the ground. I had heard horror stories from my great uncle about high tension lines arcing out and flying around, cutting down everything in their path. Supposedly happened down the road at Hoskins Mound, a sulfur mine active in the first half of the century. I wasn't sticking around to see if they were true. Pete Keillor |
#56
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Leon Heller wrote:
When I worked for Rank-Xerox, we refurbished a Copyflo machine (a large microfilm printer). It took several months of work and cost a lot of money. The delivery truck was backed in with the roller shutter part way down, the machine was loaded and tied down, and the truck went on its way. Unfortunately, no-one had thought to raise the shutter to clear the machine, and it ended up on the floor, completely wrecked. Leon I'm not sure I got this right...Which was the "it" in your last sentence..... Was it the machine which got damaged and did the loading guys just say "fuhgedit" and leave it for the customer to discover? Or was the "roller shutter" part of the loading dock and that was what got wrecked when the truck backed in to pick up the load? (America and Britain...two countries separated by a common language...) Happy New Year, Jeff -- Jeffry Wisnia (W1BSV + Brass Rat '57 EE) "As long as there are final exams, there will be prayer in public schools" |
#57
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Gerald Miller wrote:
On Sun, 02 Jan 2005 13:41:33 -0500, Peter T. Keillor III wrote: I think I've written here before about getting a rude education in the importance of proper rigging when the techs on another project dropped a 5-1/2 ton cell hatch cover about 3 ft. away from me. Got my attention. Try dropping a 250 pound welded steel, rectangular cover into a congested high voltage manhole. The delicate touch takes on a whole new meaning. Gerry :-)} London, Canada I thought that mostly always made manhole covers round because that shape COULDN'T fall into the hole*, with the side benefit that you can easily roll them on the pavement when moving them. Or maybe that wasn't THE manhole's cover you dropped in, but the cover to something that belonged down there. Jeff *An equalateral triangle shape wouldn't fall through either, but it'd look stupid and not be very efficient. -- Jeffry Wisnia (W1BSV + Brass Rat '57 EE) "As long as there are final exams, there will be prayer in public schools" |
#58
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On Tue, 04 Jan 2005 15:19:05 -0500, Jeff Wisnia
wrote: Try dropping a 250 pound welded steel, rectangular cover into a congested high voltage manhole. The delicate touch takes on a whole new meaning. Gerry :-)} London, Canada I thought that mostly always made manhole covers round because that shape COULDN'T fall into the hole*, with the side benefit that you can easily roll them on the pavement when moving them. Or maybe that wasn't THE manhole's cover you dropped in, but the cover to something that belonged down there. This was a field produced item where a standard airfield drainage MH frame was put on the electrical MH and the heavy grating provided with a solid cover plate welded on. Unfortunately, the lifting method proved inadequate, and when the cover dropped it did so at an angle to the opening. Fortunately, no damage occurred. Gerry :-)} London, Canada |
#59
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Stephen Young wrote:
It's all part of some manager's master plan to save a couple bucks to make himself look better to investors. Gotta justify your existence right? I don't know what hospitals in the USA are like, but most of the ones I've been inside in the last couple of years look very close to being dirtier that some factory places I've seen. Lots of small maintenance jobs are also not being done. No wonder they are admitting that 1 in 10 people leave hospital in a worse situation than when they entered (NSW Australia) |
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