Conical and Round-Bottomed Flasks

….because who doesn’t want plushy laboratory glassware?!

(Conical flask = Erlenmeyer for anyone on the wrong* side of the pond….)

Firstly, the round-bottomed flask:

round flask

A very simple pattern combining a basic crocheted ball with a cylindrical neck.  I did this crocheting in the front loops only, as this suits me tension-wise.  I have high tension.  If you would normally do crocheted balls through both loops, do that.

Start with your colour:

  1. Magic ring with 6 sc;
  2. 2sc in each sc around;
  3. (2sc in next sc, sc in next) repeat around;
  4. (2sc in next sc, sc in next 2 sc) repeat around;
  5. (2sc in next sc, sc in next 3 sc) repeat around;
  6. (2sc in next sc, sc in next 4 sc) repeat around;
  7. (2sc in next sc, sc in next 5 sc) repeat around;
  8. (2sc in next sc, sc in next 6 sc) repeat around;
  9. 6 rows of sc in each sc around;
  10. (dec over next two sc, sc in next 6 sc) repeat around;
  11. (dec over next two sc, sc in next 5 sc) repeat around;
  12. (dec over next two sc, sc in next 4 sc) repeat around;
  13. (dec over next two sc, sc in next 3 sc) repeat around CHANGE COLOUR, DON’T CUT OFF COLOUR THREAD, BUT FINISH OFF;
  14. In white…. (dec over next two sc, sc in next 2 sc) repeat around PAUSE THIS COLOUR!;
  15. STUFF! In the back loops of the white row 13, dec around using the coloured thread, and finish off, cutting off the coloured thread and tucking the tail into the stuffed bit;
  16. returning to your abandoned white thread: 8 rows of sc in each sc around;
  17. (sc in next sc, 2sc in next) around.

Now for the conical flask:

Conical flask

You may have noticed a yellow conical flask in the picture of the full set.  That one was simply starting with a flat circle, and then doing as for row X onwards.  I didn’t like that as much as real conical flasks don’t have sharp corners.  Here is the pattern for Take #2!

I changed the stitch to get a different result from the same pattern.  I did this with each new stitch going through both loops of the stitch below, not just the front loops.  Using slip stitches instead of scs may work for you if your tension’s not right.

Start with your colour:

  1. Magic ring with 6 sc;
  2. 2sc in each sc around;
  3. (2sc in next sc, sc in next) repeat around;
  4. (2sc in next sc, sc in next 2 sc) repeat around;
  5. (2sc in next sc, sc in next 3 sc) repeat around;
  6. (2sc in next sc, sc in next 4 sc) repeat around;
  7. (2sc in next sc, sc in next 5 sc) repeat around;
  8. (2sc in next sc, sc in next 6 sc) repeat around;
  9. sc in each sc around;  (total of 48 stitches around)
  10. (sc in next 22 sc, dec over next 2 sc)*2;
  11. (sc in next 21 sc, dec over next 2 sc)*2;
  12. sc in next 10 sc, dec over next 2 sc,sc in next 20 sc, dec over next 2 sc, sc in next 10 sc;
  13. sc in next 5 sc, dec over next 2 sc,sc in next 19 sc, dec over next 2 sc, sc in next 14 sc;
  14. …. you get the idea – two decs per round, evenly spaced, don’t make the decs in different rows all line up or you’ll get corners.  Decide when you want to switch to white – how full do you want your flask to be?
  15. At the end of your last colour row, CHANGE COLOUR, DON’T CUT OFF COLOUR THREAD, BUT FINISH OFF, AND STUFF THE FLASK;
  16. Do next row in white (as before, 2 decs, evenly spaced);
  17. ABANDON WHITE FOR A BIT AND GO BACK TO THE COLOURED THREAD – decrease around on the inside – I found two circles of dc decreases did the job, ymmv depending on tension. Finish off and tuck trailing end inside the flask;
  18. RETURN TO WHITE THREAD AND Continue as per [14] until you have only 18 stitches around;
  19. 8 rows of sc in each sc around;
  20. (sc in next sc, 2sc in next) around.

 

*and yet I am using US crochet notation….

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2 Responses to Conical and Round-Bottomed Flasks

  1. Pingback: Crocheted Chemistry Set | Weebleflip's Craft Corner

  2. Brilliant! My inner science geek needs to find an excuse to make these. 😊

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