Purlbed

Short rows (partial knitting) › Shapes

Centre bulge / dome

A horizontal band of rounded bumps or a soft dome in the middle of the fabric, with flat edges. Repeated bands give a quilted, puckered ridge texture. A shadow sits under each bump. Hold both edge groups. Knit r extra rows on the centre only, wrapping the held turn needle every row.

Machine types that can knit it

Demo swatch

Drawn for: Single bed, punch card
Approximate preview worked out from the bed chart, not a photo.Short rows change the shape of the piece. The preview shows where extra fabric builds up, not the real curve or flare.
Bed chart
HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH15101520253035→←→←→←→←→←→←→←→←→←→←→←→←→←→←→←→←→←→←Front bedHold1 square = 1 stitch × 1 row · read from the bottom · Single bed, punch card, 36 needles
Needle notation, first steps
1. Rows 1–4: knit 4 rowsStocking stitchcarriage →bed2. Rows 5–14: knit 10 rowsStocking stitch · hold 24carriage →bedHHHHHHHHHHHH3. Rows 15–22: knit 8 rowsStocking stitchcarriage →bed4. Rows 23–32: knit 10 rowsStocking stitch · hold 24carriage →bedHHHHHHHHHHHHShowing needles L12–R12 of 36; repeat across the working area.

Steps

  1. Carriage on R. Hold the left edge group. Knit one pass to L.
  2. Hold the right edge group and wrap.
  3. Knit r rows on the centre, wrapping each turn.
  4. Return the left group before the next pass. Knit carefully over the bulky wrapped needle.
  5. Knit a plain row back.
  6. Repeat 4–6×.

The full card

What it looks like
A horizontal band of rounded bumps or a soft dome in the middle of the fabric, with flat edges. Repeated bands give a quilted, puckered ridge texture. A shadow sits under each bump.
How it behaves
Relief bulge, pronounced. A horizontal ridge if repeated per band.
How it works
Hold both edge groups. Knit r extra rows on the centre only, wrapping the held turn needle every row. Return the edges and knit plain. Variation: also shape inside the centre (shrink and regrow the working width) for a rounder, more pointed dome.
Machines
Single bed, hold. Hand-weight the centre.
Parameters
W (≈40); centre width Wc (≈W/2); extra rows r (4–8); repeats per band; tension around 7 on 4-ply mercerised cotton.
Steps
1) Carriage on R. Hold the left edge group. Knit one pass to L. 2) Hold the right edge group and wrap. 3) Knit r rows on the centre, wrapping each turn. 4) Return the left group before the next pass. Knit carefully over the bulky wrapped needle. 5) Knit a plain row back. 6) Repeat 4–6×.
Charting
A shaded centre column r rows tall on top of full-width rows. Mark "C" on both turn needles each row and an arrow per pass.
Limits and common problems
Wrapped needles grow bulky. Too many extra rows make the fabric jam against the needles.
Combines with
stuffing (hand-sewn backing), pk-peak, ch.4 pleats.
Pieces and assembly
Local volume without separate pieces. Use it for padded or raised zones.

Written in our own words from machine manuals, knitting references and swatching. Knit a test swatch before a whole piece.

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