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Pattern Puzzle - The Patent Blouse

Monday, December 09, 2013

Looking a lot like an origami bat, this weeks self-drafted #PatternPuzzle comes from some of the greatest minds of the 1960's - the inventors filing patents for the next best thing in clothing production.  July 2019 - this pattern is now available as a PDF download on this website The Patent Blouse Sizes XS-XXL
The Patent Blouse

Extracting the detail from the funny little patent sketches was probably one of the most frustrating self-drafted puzzles I have ever put together.  It took me ages to make sense of the garment and the suggested shape for the pattern.  I managed to unpack the shape by tracing the front half shape, then folding the paper and tracing half the back diamond shape.  Then all I had to do was add the lower back section onto the front side seam.  That's how I arrived at the final pattern puzzle shape above.

Patent Office Sketch

The diagram below has all the relevant markings to help with understanding the garment and how it goes together.  As soon as I had this shape I decided to reverse engineer it onto a loose fit kimono block that I use in my freelance pattern making work.

the patent Blouse

On the pattern plan below I've worked this top to the high hip although I think it could be made any length you desired.  I have also marked up for a separate hipband and front fastening as per the original sketch.

Pattern Plan

Tracing the front and back shapes I found the only way I could get the front and back centres to sit at right angles (as indicated in the patent sketches) is by placing the two shoulder points (SP) together and pivoting the back pattern to 90 degrees.  This move does give you the correct angle to work to the plan but it also gives you extra fabric around the neckline.  That accounts for the drape effect in the original sketch for the patent application.

Pattern Plan

A few things I discovered along the way:

  • the CF & CB lines are exactly the same length.
  • the notches for the armhole fall approx. at thirds through the body of the pattern.
  • the armhole may also need to be bigger than marked depending on the fabric.
  • that extra fabric around the neckline drapes nicely.
  • that it is possible to cut the trim in one piece with the pattern.
  • you don't necessarily need a front opening if your fabric is stretchy enough.

Before cutting, my alterations to the original shape were to add double the hip band width onto the hem edge (+10cm) and a decent turnback (+4cm) onto the centre front edge.  This way the whole garment can be cut in one piece, with only two seams and a turnback hem band and front opening.  You may want to add a little stretch fusing to the front opening turn back if you want buttons or snap fastenings.

Pattern Piece

The first sample below was cut in a stripe like pattern which really illustrates the change of direction in the garment front the CF line through to the back.  The photos on the top are the inside of the garment.  The photos on the bottom are the garment right side of fabric out with the hipband and front edge turned in.  As far as the centre front goes I will probably sew that up (my fabric is two way trench) and use the wide fold back as a deep hem for the drape neckline.

Samples Patent Blouse

The following will give you a guide as to how to sketch up your own pattern.  From my quarter scale image I calculated the scale-up to full size using 63cm on the CF and worked the rest out on a grid.  So although I needed the Kimono Block to work my ideas out in the beginning, it did lead to a shape that can be calculated easily and altered for different fits.  After you have sketched up the shape think about adding the front fastening and hipband all in one with the main pattern.


Scale Diagram Pattern

Overall I think there was a reasonable outcome for the first sample and imagine there is plenty of potential in most knits.  However I don't believe it would work well in a woven.  This was a fun project to work through and I really enjoyed demystifying the patent sketches and arriving at a reasonable garment.   Let me know if you have any questions via email or in the comments section of this post.  Enjoy! 

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Margaret Crawford commented on 11-Apr-2020 12:05 AM
I would like to purchase your patent top but I can't figure out how to do that on your site
Anita - Studio Faro commented on 11-Apr-2020 09:38 AM
Hi Margaret, thanks for dropping by. You can go to the DOWNLOADS part of the menu and go to SEWING PATTERNS. Click on the Patent Blouse and you go to the page where you can purchase the sewing pattern. Either via Paypal or using your credit card. There is also a direct link to the sewing pattern in the first paragraph of this blog post. Happy sewing! :)

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All images, designs, photos and layouts on this blog are created and owned by Anita McAdam© of Studio Faro. They are available for HOME AND PERSONAL USE ONLY.  If you would like to use my content for teaching or commercial purposes please ask.  I have some amazing resources for teachers and manufacturers. ;) enquiries@studiofaro.com

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The challenging patterns, the exciting new design trends and the impossible drapes; that's what I live for.  Disclaimer: These new ideas are offered here for testing and are offered without guarantee.  Allow yourself time and space to truly test and perfect the patterns for all your new ideas.  And please don't give yourself a hard time if the first toile is less than perfect.  It's simply part of a process. Enjoy :)

Using my content

All images, designs, photos and layouts on this blog are created and owned by Anita McAdam© of Studio Faro. They are available FOR HOME AND PERSONAL USE ONLY.  If you would like to use our content for teaching or commercial purposes please ask.  I have some amazing resources for teachers and manufacturers. ;) enquiries@studiofaro.com

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