BIG tool...

[wore out]

Wonder what the weight rating is on that thing?

 

[Loosehandle]

Depends on how many guys can dangle from
the loop....

 

[DoubleO7]

(reply to post at 14:40:33 11/24/23)

Looks like the lower sheave says 3 or 8 ton on it at the 11 o'clock position.

 

[JMOR]

(quoted from post at 15:41:34 11/24/23)

(reply to post at 14:40:33 11/24/23)

vote for 8

 

[moresmoke]

8 ton would need 3/8 chain minimum.

 

[Cash4Toys]

OASHA has a 5:1 safety factor on all lift rigging including chain.

 

[john in la]

Depends on how many guys can dangle from the loop

Lol. Always one in every crowd but thanks for posting that.

 

[JMOR]

(quoted from post at 21:27:19 11/24/23) OASHA has a 5:1 safety factor on all lift rigging including chain.

hy in the world would you think OASHA even existed when that hoist was made??!! :roll:

 

[john in la]

OSHA did not exist WHEN that hoist was made.

OHSA exist today BECAUSE that hoist was made.

 

[Texasmark]

I'd say the wood looking rafters would be the weak link especially if any span is involved.

 

[dr sportster]

Strength of wood is listed in engineering handbooks. Could be calculated for strength .

 

[Crazy Horse]

I'm with you John.

 

[DoubleO7]

(quoted from post at 11:20:51 11/25/23) I'd say the wood looking rafters would be the weak link especially if any span is involved.

Does not look like the rafters are involved with supporting the chain hoist.
Looks like it is hanging on a manually operated trolley running on wood column supported iron rails on beams (maybe wood).
The other columns and rails are behind the camera overhead.

I am thinking.

 

[ss55]

Looks old, pre-1950, maybe pre-1900? Anything I've seen used commercially had a weight rating clearly marked on both the hook and on the frame.

 

[Charles in Aus.]

The image really looks like rendered art work , or at the very least a manipulated photograph . Certainly a nice piece but details probably aren't exactly authentic . Look closely around the lift hook , classic signs of some type of photoshop type work in the outline .

 

[Jim.ME]

I don't believe there is any photoshop work there. I have seen many similar to it, smaller and larger, in the old mill buildings and hydroelectric stations around New England. Some are still in use after some repairs and upgrades.

 

[DoubleO7]

(reply to post at 07:38:57 11/26/23)

Might be some photoshoping going on.

But more inclined to believe some special effects via filters, computer and site and object prep like spraying with water or oil to get the desired look.

 

[Jim.ME]

(quoted from post at 16:12:28 11/26/23)

(reply to post at 07:38:57 11/26/23)

I would agree with some lightening and adjusting clarity of the picture; however, I believe the hoist is real. Pictures taken in those old mills can be pretty dim and have to be lightened up to make out details, then they can look about like this one. I say that from experience documenting such for projects as part of my job over the years. If the roof wasn't leaking it is not unusual to find they are not all rusty and frozen up. The guys who used them in the day kept them lubed. I have used ones like that to lift things, after inspections and safety checks. Some have two speed gearing so loaded light you can raise and lower a bit quicker. The crew pulls a lot of hand chain to move an inch on a 15 to 20 ton one, in low speed.

 

[Charles in Aus.]

I'm not questioning the reality of the tool Jim .
I wanted to point out that because it is a manipulated photograph any details in it need to be questioned and not taken on appearance value .
I've since made a reverse image search and found that it is a poster image that has been enhanced . Available from Pintrest , Amazon and a few other outlets .

 

[Bruce(OR)]

About 1 or maybe 200 pounds judging by the looks of the wood beam.
I suppose if I put anything on it, I would have to consider the roof caving in and whatever crashing to the
floor underneath. That being the case, I might go 50 pounds. Tops.