CQR anchors.

[Neeves]

I would have thought that the easiest way would be to have the pin an interference fit, driven in with the shank hot, so that it would shrink on to the pin when it cooled.

I did wonder whether the pin might be tapered but I have just been out to the back yard where I have a spare genuine 35lb CQR (and no, it is NOT a garden ornament ) to check and the pin is not tapered.

Our pin does not look tapered but the pin looks as if it is part of a casting or has been welded in, I don't know what the technical term might be but where the pin interfaces with the rest of the fluke its, sort of neatly filled or rounded (a shoulder?). There was me thinking all drop forged was 'hot', really hot, like red hot - which is why they are, or were, so expensive.


Fascinating that a 100 year old design, almost - time to think of the birthday party and the telegram - can engender such a debate. But I've said this already - no need to harp on

Jonathan

 

[JumbleDuck]

I would have thought that the easiest way would be to have the pin an interference fit, driven in with the shank hot, so that it would shrink on to the pin when it cooled.

Good idea. How rough is your pin?

 

[Poignard]

Good idea. How rough is your pin?

That's rather a personal question!

 

[GHA]

On facebook there was a comment that users of a "£$% new gen should fly some sort of pennant to show others they had a decent anchor down - maybe users of cqr could do similar so the rest of us know not to anchor downwind just in case the wind gets well into double figures and you drag...

 

[JumbleDuck]

That's rather a personal question!

Well, I've already said that my hole is round rather than oval.

 

[JumbleDuck]

On facebook there was a comment that users of a "£$% new gen should fly some sort of pennant to show others they had a decent anchor down

Good idea. It would also let us know that they are on 10:1 chain and are using three separate anchor alarms, such is their faith in their anchor.

 

[Poignard]

Good idea. How rough is your pin?

Here are some photos. It was starting to rain so I didn't linger for a closer look.






I ought not to leave my shoelaces untied. It's as much a sign of old age as a liking for CQR anchors

 

[GHA]

If CQR made politicians .....

 

[JumbleDuck]

If CQR made politicians .....

Well if Rocna made politicians they'd be bent.

 

[Neeves]

Here are some photos. It was starting to rain so I didn't linger for a closer look.

View attachment 100438
View attachment 100439
View attachment 100440
View attachment 100441

I ought not to leave my shoelaces untied. It's as much a sign of old age as a liking for CQR anchors

What I note is - there is very little evidence of wear and your pin and hole are neater than mine, on a smaller anchor - yours has much less wobble space. You anchor does not show much wear on the gal either

Jonathan

 

[Little Dorrit]

Here are some photos. It was starting to rain so I didn't linger for a closer look.

View attachment 100438
View attachment 100439
View attachment 100440
View attachment 100441

I ought not to leave my shoelaces untied. It's as much a sign of old age as a liking for CQR anchors

That's encouraging very similar to mine. Nice to know that's not too worn.

I'm referring to the CQR, and not the shoes of course

 

[Poignard]

Regarding how the pivot pin is secured on the CQR, the diagrams in the original patent application show a grub screw.

But I can't see the foundry where the smaller, drop-forged, anchors were made faffing about drilling and tapping holes for a grub screw.

A tapered cotter-pin could have been used instead of a grub screw I suppose, but I still think a foundry would have used the simpler (for them) and less labour intensive option of shrinking the shank onto the pivot pin (see post#200).

Interestingly, it also shows the CQR as being fabricated rather than drop-forged (the larger sizes advertised by Lewmar were, in fact, fabricated).

 

[Poignard]

That's encouraging very similar to mine. Nice to know that's not too worn.

I'm referring to the CQR, and not the shoes of course

.

Hadn't you realised that worn old shoes are de rigeur for the poverty-stricken owners of manky old boats equipped with CQR anchors?

 

[Little Dorrit]

.

Hadn't you realised that worn old shoes are de rigeur for the poverty-stricken owners of manky old boats equipped with CQR anchors?

As an aside, my uncle who was a bank manager in the days when banks had real bank managers (Captain Mainwaring era), explained any decision to lend money was based on the appearance of the shoes of the potential debtor.

 

[Poignard]

As an aside, my uncle who was a bank manager in the days when banks had real bank managers (Captain Mainwaring era), explained any decision to lend money was based on the appearance of the shoes of the potential debtor.

Actually I have a pair of Loakes shoes for those rare, and usually unsuccessful, occasions when I feel the need to "dress to impress".

 

[Neeves]

Regarding how the pivot pin is secured on the CQR, the diagrams in the original patent application show a grub screw.

But I can't see the foundry where the smaller, drop-forged, anchors were made faffing about drilling and tapping holes for a grub screw.

A tapered cotter-pin could have been used instead of a grub screw I suppose, but I still think a foundry would have used the simpler (for them) and less labour intensive option of shrinking the shank onto the pivot pin (see post#200).

Interestingly, it also shows the CQR as being fabricated rather than drop-forged (the larger sizes advertised by Lewmar were, in fact, fabricated).

View attachment 100506

On this basis I'd say our pin was welded in. It might be tapered, it might have a a cotter pin or be keyed, it might be a heat fit but that will be hidden under the gal - but the ends where the pin 'exits' what must be a cylindrical hole - looks like a weld, top and bottom.

Jonathan

I've never thought about it but - all the genuine CQRs I've seen have this unusually long 'D shackle - its quite a monster in comparison to what we use today. I had always assume it was original equipment and 'part' of the anchor. I note it is not part of the Patent.

 

[Little Dorrit]

Well I doubt there are many bits of 1930’s technology still going strong in the boating world today.

 

[Kukri]

In 14 years time we can have a birthday party.

 

[GHA]

Well I doubt there are many bits of 1930’s technology still going strong in the boating world today.

Probably a few ancient designs here and there, but there are just far better options these days.

 

[FlyingGoose]

Sorry just been rip van winkled and came back to see if anything was going one here ,