Looking at the instruction book for my Viking sewing machine they are called the "feed teeth".
Also known as the ‘feed dog’.
NO it is not made of glass in earlier times the sewing machine was made of metal. now it is made of plastic with glass in it
The very first sewing machine is made up of metal parts.
You find the lever that will lift them. It is on the back of the arm of the machine.
the throat plate covers the opening to the shuttle and shuttle basket. it is also a seam gauge.
How to thread a sewing machinePlace the presser foot in the upward position.Place a spool of thread on the spool holder.Traveling from the spool holder, across the top of the machine, look for a minimum of one thread guide.Insert the thread in the thread guide(s).Now look for a tension mechanism. Bring the thread downward to the tension mechanism, slip the thread between the metal disks of the tension mechanism, and travel back upwards with the thread.Look for a take up mechanism. This is the area on the front of the machine which will go up and down, when you turn the hand wheel. Place the thread through the take up lever. Some machines are set up so the thread will slide in to this, others require you to place the thread through a hole.Now the thread will go downward on the left side of the take up lever.Locate and thread any thread guides, leading down to the sewing machine needle.Thread the sewing machine needle. Hold the thread with your left hand and turn the hand wheel.
It makes the needle move. Actually the pressure foot works in conjunction with the feed dog mechanism, as well as in synchronicity with the needle movement, and the looping hook. In a zigzag for instance the side to side movement creates a taller or shorter 'Z' based on distance the feed dog moves the material. The feed dog is simply a jagged stepped piece of steel which travels one direction in an elevated motion, 'pushing' the material through the machine. The feed dog returns it's travel in a lowered position, thereby allowing the material to pass in one continuous direction. Often it is the pressure foot which is the final adjustment in preparing ones machine, and is adjusted with more pressure for materials with a more stable nature. It has been my experience that if a fabric is not smooth ( IE. a pocket on a pair of jeans), that loosening the pressure foot allows for easier control whilst sewing around bumpy edges. In fact, I must admit I am more of a technician than a sewer ( what do you call one who sews?), but I've found that you can increase the number of stitches in a given area if you lessen the foot pressure and pull the material back slightly- then let the material go back across the same point again. This of course is the bane of every sewing person ( smells, oops spells better than sewer). If one could only sew a cloth with the same accuracy that their machine was prepared to handle there would be far more people still making their own cloths, or at least fixing them. The bottom line is that the less you sew the more needles you'll break. Practice practice practice.
I have an olive green that is all metal except the case and one knob.
Yes! Most sewing machines combine plastic parts with metal parts, although higher end brands such as Husqvarna, Bernina, and Pfaff, as well as industrial sewing machines, will contain more metal parts in the inner workings of the machine. A Singer commercial sewing machine would contain a plastic bobbin case, whereas a comparative Bernina model would contain a metal bobbin case. Metal parts are of higher quality, because they do not stretch, warp, or break as easily as plastic parts.
The presser foot is the prong shaped piece of metal resting where the needle passes through the garment to be sown.
i think its made out of metal . thnx
Have the instruction book but does not mention so I have the machine and I would say same size as the singer but are metal OK ( bobbin ) Most Kenmore sewing machines (including this one) take class 15 bobbins which you can find at Joann's, Walmart, and most places that deal in sewing machines. They come in either plastic or metal.
They are called the feed dogs