What is band wheel crank?
Band wheel crank – moves the band wheel. Bent – a change of shape or angle caused by pulling or pricking to a harder part such as machine needle driven out of throat plate slot. Blunt – refers to an unsharp or dull needlepoint that is irreplaceable.
Which part of the sewing machine controls the looseness and tightness of the stitch by controlling the pull on the upper thread?
Tension Regulator (7)
This dial controls the tension on the top thread. With proper tension the top thread and bobbin thread will join together in uniform stitches. If the tension is set too tight, the stitch will pucker and break; if set too loose, the stitches will not hold.
How will you move the fabric while sewing through the use of?
Bobbin spindle- holds the bobbin while it winds. Bobbin winder tension- provides tension on the thread when the bobbin winds. Feed dog– moves the fabric along as you sew.
Why do sewing machines lock up and won’t sew?
Thread bunched up in the shuttle race often causes the sewing machine to lock up. … Clean lint and debris out of the shuttle race; they can prevent the needle from hooking the thread, resulting in thread bunching up in the shuttle race and jamming the needle.
What is the function of Pitman Rod?
Connecting rod used to convert from rotation to reciprocating motion. A Pitman rod was used, for example, on a mowing machine to drive the reciprocating sickle bar.
What will protect the dress from the wheel?
Dress Guard protects the dress from the wheel.
Why is my machine sewing gathers?
Tension pucker is caused while sewing with too much tension, thereby causing a stretch in the thread. After sewing, the thread relaxes. As it attempts to recover its original length, it gathers up the seam, causing the pucker, which cannot be immediately seen; and may be noticeable at a later stage.