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Messages
10,829
Location
vancouver, canada
Belfast, I considered coming directly to you, but you've been such a help recently I thought I'd give you a break. Thank you, once again! Your advice is always so well detailed. That explains the angles. Ok, here I go! Thanks again!
It is easier making a hat for yourself as you can tape the sweat together and try it on for size. I always end up cutting it twice as I err on the side of caution and get it a bit big so have to cut again. Take it slow.
 

Gobi

One of the Regulars
Messages
169
Does this look like Long Oval dimensions to you? It doesn't to me but maybe my eyes are lying. I have a larger sized block that IS long oval and even though it's larger, it's more narrow than this one which leads me to believe this is not a long oval. It looks regular to me. Thoughts?
20210208_193551.jpg
 
Messages
10,829
Location
vancouver, canada
Does this look like Long Oval dimensions to you? It doesn't to me but maybe my eyes are lying. I have a larger sized block that IS long oval and even though it's larger, it's more narrow than this one which leads me to believe this is not a long oval. It looks regular to me. Thoughts?
View attachment 308578
It does look Reg Oval....post the north/south and east/west dimension and i can tell you for certain. Also the measure all way around.
 
Messages
10,829
Location
vancouver, canada
^^^General question:
Is there a standard ratio length to width for a long oval??
Regular oval??
B
I first purchased a full set of vintage Long Oval flanges and had my blocks made to fit. 60cm block is 21cm long, 16cm wide. 58cm block is 20.5cm long, 15.3 wide. Now this might not be the standard as the vintage flanges had some wear and the opening may be slightly larger than the standard. I have blocks from 56cm up to 62cm, all LO
 
Messages
19,001
Location
Central California
I first purchased a full set of vintage Long Oval flanges and had my blocks made to fit. 60cm block is 21cm long, 16cm wide. 58cm block is 20.5cm long, 15.3 wide. Now this might not be the standard as the vintage flanges had some wear and the opening may be slightly larger than the standard. I have blocks from 56cm up to 62cm, all LO


Maybe one of our resident engineers will work out a ratio for us.
 
Messages
19,408
Location
Funkytown, USA
The ratio of a regular oval appears to be about 1.23-1.24.

Based on the measurements given by Rob (@belfastboy), the ratio of a LO is between 1.30 and 1.339. Somewhat inconsistent, but as Rob mentioned, his vintage flanges could have worn away or, if they are different manufacturers, may have a different RO to LO ratio at the outset.

Need more data.
 

Adam L

New in Town
Messages
18
Location
Canada
I had the same question a while ago, and while researching I stumbled across a top hat maker in the UK that listed dimensions of their hat blocks. While there is no regulated system, they provided these guidelines for classifying hat blocks:

Round Oval - Approx. 5/8 inch longer than it is wide
Regular Oval - Approx. 1 3/8 inches longer than it is wide
Long Oval - Approx. 2 1/8 inches longer than it is wide

I only have one block, so I can’t verify, and I imagine regular ovals have slightly different specs depending on the block maker. This may also be the only reference I’ve ever seen to round oval, too.
 
Messages
19,001
Location
Central California
I had the same question a while ago, and while researching I stumbled across a top hat maker in the UK that listed dimensions of their hat blocks. While there is no regulated system, they provided these guidelines for classifying hat blocks:

Round Oval - Approx. 5/8 inch longer than it is wide
Regular Oval - Approx. 1 3/8 inches longer than it is wide
Long Oval - Approx. 2 1/8 inches longer than it is wide

I only have one block, so I can’t verify, and I imagine regular ovals have slightly different specs depending on the block maker. This may also be the only reference I’ve ever seen to round oval, too.

It seems to me that it would need to be a ratio as a fixed number would mean the smaller the hat hat size the longer the oval and vice versa.
 
Messages
10,829
Location
vancouver, canada
I had the same question a while ago, and while researching I stumbled across a top hat maker in the UK that listed dimensions of their hat blocks. While there is no regulated system, they provided these guidelines for classifying hat blocks:

Round Oval - Approx. 5/8 inch longer than it is wide
Regular Oval - Approx. 1 3/8 inches longer than it is wide
Long Oval - Approx. 2 1/8 inches longer than it is wide

I only have one block, so I can’t verify, and I imagine regular ovals have slightly different specs depending on the block maker. This may also be the only reference I’ve ever seen to round oval, too.
That roughly fits for my LO's. It seems the ratio is plus/minus 2" longer than width across the range.
 
Messages
19,408
Location
Funkytown, USA
I had the same question a while ago, and while researching I stumbled across a top hat maker in the UK that listed dimensions of their hat blocks. While there is no regulated system, they provided these guidelines for classifying hat blocks:

Round Oval - Approx. 5/8 inch longer than it is wide
Regular Oval - Approx. 1 3/8 inches longer than it is wide
Long Oval - Approx. 2 1/8 inches longer than it is wide

I only have one block, so I can’t verify, and I imagine regular ovals have slightly different specs depending on the block maker. This may also be the only reference I’ve ever seen to round oval, too.

I suppose that would work in a limited range, but specific numbers aren't scalable.

Makes me all twitchy as an engineer.
 
Messages
11,635
View attachment 308804 I believe this is mold. How would I get rid of it? Is scraping it away sufficient or should the hat be treated in some way?

View attachment 308804
I believe it is verdigris from the copper wire used as part of the reeding material. Think of like the Statue of Liberty turning green

I realize that doesn’t help you on the cleaning advice. LOL. I’m sure others have more experience with it. I’ve generally left it on the few hats I have with similar stains... I kinda liked the character.
 

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