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Archive for March, 2013

Podgers!

Podgers or framing pins are tapered steel pins that mimic the form and job of an oak peg.

Timber Frame PodgersTheir supreme usefulness is twofold:
Firstly to pull draw-pegged joints up tight in the workshop when making and assembling frames.

Timber Frame PodgersSecondly when raising frames, they allow the speedy and safe temporary securing of joints until the oak pegs take over

“Podgers!” is the confusing cry that can often be heard on raising day.

If you want to see how they are made, check out Jon Snow http://www.windysmithy.co.uk/hand-tools

Mar-29-13 a las 12:37 pm Jowl Post, Uncategorized. Sin Comentarios

The Humble Pencil

Friday afternoon musings about timber framing – ‘The Jowl Post’

The Pencil!

Perhaps not the most glamorous of workshop tools you might think, but probably the most important. With carpentry it’s imperative to draw an accurate line that you can cut to.

Castle Ring Oak Frame

The quest for the ideal pencil can consume a timber framer to the point of obsession! All too rarely the individual properties of wood and lead combine in such a way that leaves a perfectly clear sharp line ready for machining.
The relationship between timber framer and pencil can be profound and yet fleeting as by the time you’ve discovered the “chosen one”,  it’s been whittled away into an inch long stub – you’ll see I can’t bear to throw mine away…….fag ends in an ash tray.

Used pencils! Castle Ring Oak Frame

Mar-22-13 a las 12:39 pm Jowl Post. Sin Comentarios

Draw Pegging or Draw Boring

Draw Pegging is a nifty (and of course historic) way of getting timber frame joints to close up snugly under tension.
It’s achieved by offsetting the peg hole in the tenon relative to the peg hole in the mortice by about 4mm closer to the shoulder.
When the joint is assembled, the tapered oak peg tries to align the 2 holes and literally goes round the (very slight) bend, tightening the joint.
The “offset pricker” (yes, that’s what we call it) is a handy tool with an offset centre used to mark the  tenons. Get it the wrong way round and you’ll find that your oak pegs prise open the joints like a squirrel in a sack of hazelnuts.

Jowl Post blogJowl Post blogJowl Post  blogCastle Ring Oak Frame workshopCastle Ring Oak

 

Mar-15-13 a las 12:55 pm Jowl Post. Sin Comentarios

Queen Post Truss‏

The Queen Post Truss

A truss is effectively a large triangle that serves to support the roof and stop the building from spreading.The queen post truss is perhaps the most common roof truss and consists of a pair of principal rafters jointed at the apex with a bridal joint and tenoned into a tie beam at the bottom.

Castle Ring Oak Frame

Queen posts, are added to stiffen the truss and stop the principal rafters from flexing. Queen posts are often curved, but may be straight to frame a window in a gable for example.

Queen Post Truss - Castle Ring Oak Frame blog

Mar-08-13 a las 5:57 pm Jowl Post. Sin Comentarios

Braces

Timber frame musings – ‘The Jowl Post’
BRACES
Sartorially designed to stop your trousers from falling down, braces have an even more important job to do when considering and designing a timber frame. Without them the vertical elements of the frame would topple like dominoes around your ankles when subjected to wind loads.
Diagonal bracing creates a strong triangle and when braces are incorporated into a frame in opposing tabs pairs, they help to counter the evil forces of “racking”.

Oak frame braces by Castle Ring Oak

We use curved timbers for braces – why? Because they look good and it’s a tip of the hat to tradition when poorer grade bent timbers may have been used to avoid waste.

Oak frame braces by Castle Ring Oak Mar-01-13 a las 12:23 pm Jowl Post. Sin Comentarios
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