Mystery object

Twister_Ken

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Given the size, could it have been some sort of attempt to add self-tailing to a non-ST winch? The tufnol arm with the door stops could have been an early attempt at a rope stripper, in which case it wouldn't need to be very rigid. The 'jaws' look very self-tailery. Is there anything on the underside which would allow fixing to a winch?

I presume no manufacturer's name or model number, etc.
 

Plan_B

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I've got a feeling that the arm is an arm and not a handle - it seems to be some sort of guide or tensioner - seen something like it before but can't remember where - not in connection with boats tho.
 

mainmarine

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Ken
There are no markings etc on the thing, there are 6 holes in the base that could be used for fixing, I thought it may be an engage/disengage device for a wheel steering autopilot. There were a load of other items which were Lewmar prototypes for rope clutches etc in the box of items. below is a photo of another item from the same batch whether its related or not I don't know.
http://s158.photobucket.com/albums/t89/mainmarine/?action=view&current=31052007.jpg
The splined end drives a shaft to the right
 

mainmarine

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I haven't a clue what they are. I'm going to list them on eBay as a
gripplethripwurbley and see what response I get. By the way the other pic is of some pelican hooks not Senhouse slips,[they have a pin through them] So I'm afraid you don't even qualify for second prize which I will have to present to myself for being a smug [--word removed--].
/forums/images/graemlins/laugh.gif
 
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[ QUOTE ]
...it may be an engage/disengage device for a wheel steering autopilot.

[/ QUOTE ]

To MY view, it is more likely to be a vane steering set-up, except that the non-stainless socket screws wouldn't be appropriate but the ability to run a cord around the outside groove could be quite indicative.

However, I think it's either that or a prototype shaft brake as far as I can judge, without "hands on"

Steve Cronin
 
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No No No--More...

Those barbs in the groove mean that rope can only be gripped in one direction.

So, this device, locks on a shaft or spigot and tensions a rope coming onto it from any direction.

Had they put 30mm studs around hatch covers, then I would have said that it was a canvass hatch cover tensioning device.
AH, maybe it's intended to secure helicopters onto flight decks with the ability to release quickly. Does it "release quickly"? Maybe not with the angle of those barbs.

More important things to do

Steve Cronin
 

mainmarine

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Steve,
I think the fact that non ferrous fixing are used indicates that it is a prototype for something, the lever turns 1/4 turn to grip onto the rope, it has a slightly spring assisted return. the bevel drive fitting in the other picture seems also to be a prototype also with alloy main body but steel fixings. Thanks for your input. By the way my wife is a FA with Connells Estate Agents
Malc
 
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