Shop Floor Talk  

Go Back   Shop Floor Talk > Welding and Metalworking Forums > Fabrication

SFT Search:   
Reply
 
Thread Tools Display Modes
  #11  
Old 10-05-2017, 06:39 PM
kbs2244 kbs2244 is offline
Elite Member
 
Join Date: Sep 2006
Location: Way North Illinois
Posts: 1,456
Default

Originally Posted by Lightman
"Are the style of endless loop of chain and a double top wheel and single lower wheel still around? The top wheels are conected together and have slightly diffrent diameters?"

HF has a 1 and 2 ton rated ones that are good sellers.
I have a 1 ton hanging in my shop right now.
20 foot lift I belive.
But my beam is 14 foot off the floor, so I have all I need,
Reply With Quote
  #12  
Old 10-06-2017, 05:30 AM
Lightman Lightman is offline
Junior Member
 
Join Date: Dec 2012
Location: South Carolina
Posts: 15
Default

Quote:
Originally Posted by kbs2244 View Post
Originally Posted by Lightman
"Are the style of endless loop of chain and a double top wheel and single lower wheel still around? The top wheels are conected together and have slightly diffrent diameters?"

HF has a 1 and 2 ton rated ones that are good sellers.
I have a 1 ton hanging in my shop right now.
20 foot lift I belive.
But my beam is 14 foot off the floor, so I have all I need,
Those use one chain for teh lift and a diffrent one to pull on, what I am asking abour uses the same chain for the lift and the operating lift?

https://www.youtube.com/watch?v=OXzGSB4i1UU

long video, but this is wnat I was asking about.
Reply With Quote
  #13  
Old 10-06-2017, 08:27 AM
camdigger's Avatar
camdigger camdigger is offline
Roving Reporter
 
Join Date: Aug 2008
Location: Central Oilberta
Posts: 3,242
Default

Quote:
Originally Posted by Lew Hartswick View Post
Those things a curse on mankind. We used one for while to butcher beefs and the cursed thing NEVER had the the right length to fit. Had to physically lift the carcass to hook in on to have enough lift to get it off the ground. I suppose it was a matter of the loop being too short to have the needed lift. But every time I hear of them I curse those days. :-)
...lew...
Sounds like somebody bought a cheap or plain short one. Mine has a chain loop more than long enough to raise a beef for butchery. I have a lighter version of one my dad had. Mine is about 2 t, his must have been around 5. Both would pick up off the floor and raise a load 10 feet.

My issue with using a differential style chain hoist for butchery is handling the slack loop. The higher the load gets, the longer the slack loop gets. Rubbing the slack loop against the carcass is a sure way to get floor Schmeg all over the meat.


I haven't seen one for sale, but they come up at auctions now and then.
__________________
Design to 0.001", measure to 1/32", cut with an axe, grind to fit..
Reply With Quote
  #14  
Old 10-06-2017, 02:12 PM
kbs2244 kbs2244 is offline
Elite Member
 
Join Date: Sep 2006
Location: Way North Illinois
Posts: 1,456
Default

"Those use one chain for teh lift and a diffrent one to pull on, what I am asking abour uses the same chain for the lift and the operating lift?"

Right you are.

The kind you are talking about use the difference in dia between the upper and lower pulleys.
It is just a chain version of the sailors rope system.
Problems are the room needed for the lower pulley and the long "tail" of used chain that gets in the way.

The geared and "endless chain" version solves those problems.
Reply With Quote
  #15  
Old 10-06-2017, 03:56 PM
camdigger's Avatar
camdigger camdigger is offline
Roving Reporter
 
Join Date: Aug 2008
Location: Central Oilberta
Posts: 3,242
Default

[QUOTE=kbs2244;695712]"Those use one chain for teh lift and a diffrent one to pull on, what I am asking abour uses the same chain for the lift and the operating lift?"

Right you are.

The kind you are talking about use the difference in dia between the upper and lower pulleys.
It is just a chain version of the sailors rope system.
Problems are the room needed for the lower pulley and the long "tail" of used chain that gets in the way.

The geared and "endless chain" version solves those problems.[/QUOTE

Slight correction. These hoists work on the difference in diameter of the two side by side pulleys at the top. The lower pulley has no effect. Mine has toothed pulleys at the top that grip the chain as it rolls over it, while the lower pulley has a simple rounded groove.
__________________
Design to 0.001", measure to 1/32", cut with an axe, grind to fit..
Reply With Quote
  #16  
Old 10-06-2017, 06:01 PM
old iron old iron is offline
Junior Member
 
Join Date: Dec 2005
Location: Corinth, Vermont USA
Posts: 31
Default

Here on the farm there is a winch log mounted at the top of the hay loft access door that they used to hoist the carcass when butchering. These tools are ancient, but seems they are still far ahead of the improvements made in the last hundred years.
I will get a picture and try to post later on in the weekend.
Reply With Quote
  #17  
Old 10-06-2017, 08:13 PM
Ironman's Avatar
Ironman Ironman is offline
Iron Modification Investigator
 
Join Date: Feb 2008
Location: Warburg, Alberta, Canada
Posts: 11,389
Default

Quote:
Originally Posted by Lightman View Post
Are the style of endless loop of chain and a double top wheel and single lower wheel still around? The top wheels are conected together and have slightly diffrent diameters?
Haven't seen one for years, they were called a differential hoist. Could lift a engine effortlessly.
__________________
Gerry
It is tempting to blame others for all this, especially those in control of the system, but don’t forget that for decades you voted for people who routinely lied before elections, and told you what you wanted to hear, that you could have it all right now and to hell with the future – well, that future has now arrived. Clive Maund

Even duct tape can't fix stupid ... But it can muffle the sound.
Reply With Quote
  #18  
Old 10-06-2017, 08:48 PM
greywynd's Avatar
greywynd greywynd is offline
I can dig it
 
Join Date: Dec 2005
Location: Peterborough, Ontario
Posts: 3,165
Default

I have one that belonged to my dad. He used it for years in his automotive repair shop doing engine removal/replacements.

It's in storage these days waiting for the right place to be put back into use.

Time for a new signature line!!
Reply With Quote
  #19  
Old 10-06-2017, 08:58 PM
camdigger's Avatar
camdigger camdigger is offline
Roving Reporter
 
Join Date: Aug 2008
Location: Central Oilberta
Posts: 3,242
Default

Quote:
Originally Posted by Ironman View Post
Haven't seen one for years, they were called a differential hoist. Could lift a engine effortlessly.
You can see mine in the pole shed. Hanging from the ridge pole in the third bay. Makes unloading stuff out of a pickup a breeze. Back under, hook up load, hoist, drive out from under.....
__________________
Design to 0.001", measure to 1/32", cut with an axe, grind to fit..
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Web Search:

All times are GMT -5. The time now is 05:19 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2017, vBulletin Solutions, Inc.