Parts and Functions of a Lockstitch Sewing Machine

Question 1

Is the part that holds the spool of thread in place

Answer 1

Spool pin

Question 2

Holds the upper thread in place from the spool to the needle

Answer 2

Thread guide

Question 3

Is a lever that moves the thread up and down to form and tighten stitches

Answer 3

Thread take-up lever

Question 4

Is a round, metal plate where the thread is passed and regulated by tightening and loosening to create a perfect stitch.

Answer 4

Tension regulator

Question 5

Is a part that gibes access to the oiling points on the needle bar, presser bar, and thread take-up lever.

Answer 5

Face plate

Question 6

Holds the material in place while running the sewing machine.

Answer 6

Presser foot

Question 7

Holds the presser foot

Answer 7

Presser bar

Question 8

Is a lever attached to the presser bar used to raise and lower the presser foot.

Answer 8

Presser bar lifter

Question 9

Is a screw to keep the needle in place in the needle bar

Answer 9

Needle clamp

Question 10

Is the vertical bar to which the needle is attached

Answer 10

Needle bar

Question 11

Is the instrument that carries the upper thread through the fabric to complete the stitch.

Answer 11

Needle

Question 12

Is situated directly underneath the presser foot and throat plate, moving the cloth forward while sewing.

Answer 12

Feed dog

Question 13

Is the plate directly under the presser foot through which the needle passes.

Answer 13

Throat plate

Question 14

Is a flat that provides access to the bobbin case and other parts of the lower thread mechanism without lifting the sewing machine

Answer 14

Slide plate

Question 15

Is the mechanism used to wind the thread on the bobbin.

Answer 15

Bobbin winder

Question 16

Controls the length of the stitches. It can also be set to stitch in reverse in case of reinforcing stitches

Answer 16

Stitch regulator

Question 17

Is located at the right of the head, driven by the belt.

Answer 17

Balance wheel

Question 18

Hold the bobbin and contains mechanism that controls the tension of lower thread.

Answer 18

Bobbin case

Question 19

Holds the lower thread

Answer 19

Bobbin

Question 20

Drives the band wheel when operated by the feet in the case of pedal-driven dewing machine.

Answer 20

Treadle

Question 21

Is used for electric-driven sewing machine. It controls the speed of the sewing machine.

Answer 21

Foot controller