A
sewing machine is a
textileA textile is a flexible material consisting of a network of natural or artificial fibres often referred to as thread or yarn. Yarn is produced by spinning raw wool fibres, linen, cotton, or other material on a spinning wheel to produce long strands...
machine used to stitch
fabricA fabric is a textile material, and is short for "textile fabrication".Fabric may also refer to:*Fabric , the spatial and geometric configuration of elements within a rock*fabric , a nightclub in London, EnglandIn computing:...
or other material together with
thread----A thread is a kind of thin yarn used for sewing. Thread may also refer to:*Thread , a cotton yarn measure, equal to 54 inches...
. Sewing machines were invented during the first
Industrial RevolutionThe Industrial Revolution was a period from the 18th to the 19th century where major changes in agriculture, manufacturing, mining, and transport had a profound effect on the socioeconomic and cultural conditions in the United Kingdom. The changes subsequently spread throughout Europe, North...
to decrease the amount of manual
sewingSewing or stitching or Tailoring is the fastening of cloth, leather, furs, bark, or other flexible materials, using needle and thread. Its use is nearly universal among human populations and dates back to Paleolithic times...
work performed in clothing companies. Since the invention of the first working sewing machine, generally considered to have been the work of Englishman Thomas Saint in 1790, the sewing machine has vastly improved the efficiency and productivity of fabric and clothing industries.
Though some older machines use a
chain stitchChain stitch is a sewing and embroidery technique in which a series of looped stitches form a chain-like pattern. Chain stitch is an ancient craft - examples of surviving Chinese chain stitch embroidery worked in silk thread have been dated to the Warring States period...
, the basic stitch of a modern sewing machine consists of two threads and is known as
lockstitchA lockstitch is the most common mechanical stitch made by a sewing machine.-Description:The lockstitch uses two threads, an upper and a lower. The upper thread runs from a spool kept on a spindle on top of or next to the machine, through a tension mechanism, a take-up arm, and finally through the...
. Industrial machines are usually specialized for a specific task, and so different machines may produce a different type of stitch. Modern sewing machines are designed in such a way that the fabric easily glides in and out of the machine without the hassle of needles and thimbles and other such tools used in hand sewing, automating the process of stitching and saving time.
The fabric shifting mechanism may be a simple workguide or may be pattern-controlled (e.g., jacquard type). Some machines can create embroidery-type stitches. Some have a work holder frame. Some have a workfeeder that can move along a curved path, while others have a workfeeder with a work clamp. Needle guards,
safetySafety is the state of being "safe" , the condition of being protected against physical, social, spiritual, financial, political, emotional, occupational, psychological, educational or other types or consequences of failure, damage, error, accidents, harm or any other event which could be...
devices to prevent accidental needle-stick injuries, are often found on modern sewing machines.
The main stitch of most older sewing machines, chain stitch, has one major drawback – it is very weak and the stitch can easily be pulled apart. When the machines started being used, people realized a stitch more suited to machine production was needed, and it was found in the lock stitch. A lock stitch is created by two separate threads interlocking through the two layers of fabric, resulting in a sturdier stitch that looks the same from both sides of the fabric.
History and development of the sewing machine
In 1791 British inventor Thomas Saint was the first to patent a design for a sewing machine. His machine was meant to be used on leather and canvas. A working model was never built.
In 1814 an Austrian Tailor,
Josef MaderspergerJosef Madersperger was a tailor. He is one of the inventors of the sewing machine.- Biography :...
, presented his first sewing machine, the development started in 1807.
In 1830 a French tailor,
Barthélemy ThimonnierBarthélemy Thimonnier, , was a French inventor, who invented the first sewing machine that replicated sewing by hand.-Early life:...
, patented a sewing machine that sewed straight seams using chain stitch. By 1841, Thimonnier had a factory of 80 machines sewing uniforms for the French Army. The factory was destroyed by rioting French tailors afraid of losing their livelihood. Thimonnier had no further success with his machine.
The lock stitch sewing machine was invented by
Walter HuntWalter Hunt was an American mechanic. He lived and worked in New York state. Through the course of his work he became renowned for being a prolific inventor, notably of the sewing machine , safety pin , a forerunner of the Winchester repeating rifle, a successful flax spinner, knife sharpener,...
in 1833. His machine used an eye-pointed needle (with the eye and the point on the same end) carrying the upper thread and a shuttle carrying the lower thread. The curved needle moved through the fabric horizontally, leaving the loop as it withdrew. The shuttle passed through the loop, interlocking the thread. The feed let the machine down – requiring the machine to be stopped frequently and reset up. Hunt eventually lost interest in his machine and sold it without bothering to patent it. In 1842, John Greenough patented the first sewing machine in the United States.
Elias HoweElias Howe was an American inventor and sewing machine pioneer. He was born in Spencer, Massachusetts.Howe spent his childhood and early adult years in Massachusetts where he apprenticed in a textile factory and then for a master mechanic...
patented his machine in 1845; using a similar method to Hunt's, except the fabric was held vertically. The major improvement he made was to put a groove in the needle running away from the point, starting from the eye. After a lengthy stint in England trying to attract interest in his machine he returned to America to find various people infringing his patent. He eventually won his case in 1854 and was awarded the right to claim royalties from the manufacturers using ideas covered by his patent.
Isaac Merritt Singer has become synonymous with the sewing machine. Trained as an engineer, he saw a rotary sewing machine being repaired in a Boston shop. He thought it to be clumsy and promptly set out to design a better one. His machine used a flying shuttle instead of a rotary one; the needle was mounted vertically and included a presser foot to hold the cloth in place. It had a fixed arm to hold the needle and included a basic tensioning system.
This machine combined elements of Thimonnier's, Hunt's, and Howe's machines. He was granted an American patent in 1851 and it was suggested he patent the foot pedal (or
treadle) used to power some of his machines; however, it had been in use for too long for a patent to be issued. When Howe learned of Singer’s machine he took him to court. Howe won and Singer was forced to pay a lump sum for all machines already produced. Singer then took out a license under Howe’s patent and paid him $1.15 per machine. Singer then entered a joint partnership with a lawyer named Edward Clark, and they formed the first hire-purchase (time payment) scheme to allow people to afford to buy their machines.
Meanwhile Allen Wilson had developed a reciprocating shuttle, which was an improvement over Singer’s and Howe’s. However,
John BradshawJohn Bradshaw may refer to:* John Bradshaw , English judge* John Bradshaw , American educator-See also:* Augustine Bradshaw , British Catholic, born John Bradshaw...
had patented a similar device and was threatening to sue. Wilson decided to change track and try a new method. He went into partnership with
Nathaniel WheelerNathaniel Wheeler was the founder and executive of many companies in Bridgeport, CT, United States, in the 1800s.He owned numerous manufacturing companies and land all over, around Bridgeport, Ct...
to produce a machine with a rotary hook instead of a shuttle. This was far quieter and smoother than the other methods, and the Wheeler and Wilson Company produced more machines in 1850s and 1860s than any other manufacturer. Wilson also invented the four-motion feed mechanism; this is still seen on every machine today. This had a forward, down, back, and up motion, which drew the cloth through in an even and smooth motion. Charles Miller patented the first machine to stitch buttonholes (US10609).
Through the 1850s more and more companies were being formed and were trying to sue each other. This triggered a patent thicket known as the Sewing Machine War. In 1856 the Sewing Machine Combination was formed, consisting of Singer, Howe, Wheeler and Wilson, and Grover and Baker. These four companies pooled their patents, meaning that all the other manufacturers had to obtain a license and pay $15 per machine. This lasted until 1877 when the last patent expired.
In the 1840s a machine shop was established at the Merrow mill to develop specialized machinery for the knitting operations. In 1877 the world’s first crochet machine was invented and patented by Joseph M. Merrow, then-president of the company. This
crochetCrochet is a process of creating fabric from yarn or thread using a crochet hook. The word is derived from the Middle French word croc or croche, meaning hook. Crocheting, similar to knitting, consists of pulling loops of yarn through other loops...
machine was the first production
overlockAn overlock stitch sews over the edge of one or two pieces of cloth for edging, hemming or seaming. Usually an overlock sewing machine will cut the edges of the cloth as they are fed through , though some are made without cutters. The inclusion of automated cutters allows overlock machines to...
sewing machine. The Merrow Machine Company went on to become one of the largest American Manufacturers of
overlockAn overlock stitch sews over the edge of one or two pieces of cloth for edging, hemming or seaming. Usually an overlock sewing machine will cut the edges of the cloth as they are fed through , though some are made without cutters. The inclusion of automated cutters allows overlock machines to...
sewing machines, and continues to be a global presence in the 21st century as the last American overlock sewing machine manufacturer.
James Edward Allen GibbsJames Edward Allen Gibbs was a farmer, inventor, and businessman from Rockbridge County in the Shenandoah Valley in Virginia. On June 2, 1857, he was awarded a patent for the first chain-stitch single-thread sewing machine. In partnership with James Willcox, Gibbs became a principal in Willcox &...
(1829-1902), a farmer from Raphine in Rockbridge County, Virginia patented the first chain-stitch single-thread sewing machine on June 2, 1857. In partnership with James Wilcox, Gibbs became a principal in Wilcox & Gibbs Sewing Machine Company. Wilcox & Gibbs commercial sewing machines are still used in the 21st century.
In 1905
MerrowMerrow Sewing Machine Company is a manufacturer of sewing machines, established in 1838 as the Merrow Company by J. Makens Merrow. Originally a gunpowder manufacturer, in 1837 the company built a knitting mill, and in 1887 evolved to design, build and market sewing machines exclusively. Best known...
won a lawsuit against Wilcox & Gibbs for the rights to the original crochet stitch.
Sewing machines continued being made to roughly the same design, with more lavish decoration appearing until well into the 1900s when the first electric machines started to appear. The first electric machines were developed by Singer Sewing Co. and introduced in 1889. At first these were standard machines with a motor strapped on the side. As more homes gained power, these became more popular and the motor was gradually introduced into the casing.
In 1946, the first TOYOTA sewing machine was built under the strict supervision of TOYOTA founder, Mr. Kiichiro Toyoda. Mr. Toyoda had a strong belief that home-use products must be "functional yet beautiful".
In 1987, Orisol (Israel) pioneers the introduction of the first vision controlled computerized industrial sewing machines into the shoe making world. The addition of vision sense ( Sophisticated image processing ) to the computer controlled sewing systems enhanced dramatically the accuracy of the multi-part sewing process correcting or compensating in real time for any deflection, deformation or dynamic movement of the sewn parts as compared to the results from conventional computerized sewing machines.
Modern machines may be computer controlled and use stepper motors or sequential cams to achieve very complex patterns. Most of these are now made in Asia and the market is becoming more specialized.
Stitch formation
Sewing machines can make a great variety of plain or patterned stitches. Ignoring strictly decorative aspects, over three dozen distinct stitch formations are formally recognized by the ISO 4915:1991 standard (for a summary see
http://www.amefird.com/stitchtypematrixflyer2.pdf,
http://www.amefird.com/denimstitchmatrix2.pdf, or
http://158.132.122.156/portal/pattern/02Clothing/6Stitches02.pdf), involving one to seven separate threads to form the stitch. Plain stitches fall into four general categories:
lockstitchA lockstitch is the most common mechanical stitch made by a sewing machine.-Description:The lockstitch uses two threads, an upper and a lower. The upper thread runs from a spool kept on a spindle on top of or next to the machine, through a tension mechanism, a take-up arm, and finally through the...
, chainstitch, overlock, and coverstitch (each described below).
Lock stitch is the familiar stitch performed by most household sewing machines and most industrial "single needle" sewing machines from two threads, one passed through a needle and one coming from a bobbin or shuttle. Each thread stays on the same side of the material being sewn, interlacing with the other thread at each needle hole. Industrial lockstitch machines with two needles, each forming an independent lockstitch with their own bobbin, are also very common. There are different types of lockstitch industrial machines. The most commonly used are the drop feed for light and medium duty, and walking foot for medium and heavy duty like the Class 7 with an impressive 3/4" foot lift. This makes the Class 7 able to stitch through heavy materials up to 3/4" with threads as strong as 57 lbs. Originally made by Singer in the US and Europe for supplying the demand of heavy duty clothing for the troops, for many years after the war this class was not available as new because the market was filled. With the outsourcing of many sewing manufacturing jobs, nowadays many Chinese Class 7 machines are available and built by Federal Specifications giving them equal performance as the original ones (FSN:3530-3111-1556, FSN: 3530-3111-3675, FSN: 3530-311-1556, FSN: 3530-3111-3075).
Chain stitchChain stitch is a sewing and embroidery technique in which a series of looped stitches form a chain-like pattern. Chain stitch is an ancient craft - examples of surviving Chinese chain stitch embroidery worked in silk thread have been dated to the Warring States period...
is less widely used than lockstitch, but it is preferred over lockstitch for applications like sealing bags of grain, garment seams likely to be altered, and as a "safety stitch" on serging machines. A chain stitch may be formed with either one or two distinct threads, one passed through a needle and the other, if used, manipulated by a looper, a device which moves back and forth but does not pass through the fabric. The needle thread is formed on both sides of the material being sewn, and on the bottom of the material either crosses through loops of itself (single thread) or loops of the second thread to prevent it from pulling back to the top of the material. Most household chainstitch machines are either very old, or toys intended for children. Industrial chainstitch machines are still heavily used in their application areas.
Lockstitch and chainstitch can be formed any distance from the edge of the material being sewn.
OverlockAn overlock stitch sews over the edge of one or two pieces of cloth for edging, hemming or seaming. Usually an overlock sewing machine will cut the edges of the cloth as they are fed through , though some are made without cutters. The inclusion of automated cutters allows overlock machines to...
can only be formed at the edge itself, where one or more threads pass over the edge. Varieties of overlock stitch can be formed with one to four threads, one or two needles, and one or two loopers. Overlock sewing machines are usually equipped with knives that trim or create the edge immediately in front of the stitch formation. Household and industrial overlock machines are commonly used for garment seams in knit or stretchy fabrics, for garment seams where a clean finish is not required, and for protecting edges against ravelling. Machines using two to four threads are most common, and frequently one machine can be configured for several varieties of overlock stitch. Overlock machines with five or more threads usually make both a chainstitch with one needle and one looper, and an overlock stitch with the remaining needles and loopers. This combination is known as a "safety stitch". Household overlock machines are widely used.
Coverstitch is formed by two or more needles and one or two loopers. Like lockstitch and chainstitch, coverstitch can be formed anywhere on the material being sewn. One looper manipulates a thread below the material being sewn, forming a bottom cover stitch against the needle threads. An additional looper above the material can form a top cover stitch simultaneously. The needle threads form parallel rows, while the looper threads cross back and forth all the needle rows. Coverstitch is so-called because the grid of crossing needle and looper threads covers raw seam edges, much as the overlock stitch does. It is widely used in garment construction, particularly for attaching trims and flat seaming where the raw edges can be finished in the same operation as forming the seam. Machines with three needles are most common, and can be configured to use any two or all three of the needles. Machines with six or more needles are often used for applications like fastening elastic waistbands to garments. Household coverstitch machines are fairly rare, but are becoming more readily available.
Other stitch formations
Zigzag are lockstitches with a side-to-side width as well as a stitch length. Basic stitch formation is dictated by a stitch pattern
camA cam is a rotating or sliding piece in a mechanical linkage used especially in transforming rotary motion into linear motion or vice versa. It is often a part of a rotating wheel or shaft that strikes a lever at one or more points on its circular path...
; maximum pattern width is established by the stitch width regulator. The cams that produce zigzag stitch patterns are single. As the cam rotates, a fingerlike follower, connected to the needle bar, rides along the cam and tracks its indentations. As the follower moves in and out, the needle bar is moved from side to side. A zigzag stitch has more give than a straight stitch, and therefore is less subject to breakage.
Stretch stitching are produced by coordinated motions of needle and feed. While the needle is moving, as for straight or zigzag stitches, the feed is automatically moving the fabric forward and backward. As with zigzag stitches, stretch stitching is cam controlled, but because of the dual action, stretch stitch patterns have double cams. As the double cam rotates, the follower, connected to a needle bar, rides along one track to move the needle bar from side to side. Another follower, connected to the feed, simultaneously rides the other cam track to move the feed for forward and reverse stitches as required by the design.
Feed mechanisms
Besides the basic motion of needles, loopers and
bobbinA bobbin is a spindle or cylinder, with or without flanges, on which wire, yarn, thread or film is wound. Bobbins are typically found in sewing machines, cameras, and within electronic equipment....
s, the material being sewn must move so that each cycle of needle motion involves a different part of the material. This motion is known as feed, and sewing machines have almost as many ways of feeding material as they do of forming stitches. For general categories, we have: drop feed, needle feed, walking foot, puller, and manual. Often, multiple types of feed are used on the same machine. Besides these general categories, there are also uncommon feed mechanisms used in specific applications like edge joining fur, making seams on caps, and blindstitching.
Drop feed involves a mechanism below the sewing surface of the machine. When the needle is withdrawn from the material being sewn, a set of "dogs" is pushed up through slots in the machine surface, then dragged horizontally past the needle. The dogs are serrated to grip the material, and a "presser foot" is used to keep the material in contact with the dogs. At the end of their horizontal motion, the dogs are lowered again and returned to their original position while the needle makes its next pass through the material. While the needle is in the material, there is no feed action. Almost all household machines and the majority of industrial machines use drop feed. Differential feed is a variation of drop feed with two independent sets of dogs, one before and one after the needle. By changing their relative motions, these sets of dogs can be used to stretch or compress the material in the vicinity of the needle. This is extremely useful when sewing stretchy material, and overlock machines (heavily used for such materials) frequently have differential feed.
Needle feed moves the material while the needle is in the material. In fact, the needle may be the primary feeding force. Some implementations of needle feed rock the axis of needle motion back and forth, while other implementations keep the axis vertical while moving it forward and back. In both cases, there is no feed action while the needle is out of the material. Needle feed is often used in conjunction with a modified drop feed, and is very common on industrial two needle machines. The advantage of needle feed over drop feed is that multiple layers of material, especially slippery material, can not slide with respect to one another, since the needle holds all layers together while the feed action takes place. Household machines do not use needle feed as a general rule.
A
walking foot replaces the stationary presser foot with one that moves with the feed. A machine might have a single walking foot, or two walking feet with alternating action, and either drop feed or needle feed might be used as well. Walking foot feed is most often used for sewing heavy materials where needle feed is mechanically inadequate. It is also helpful with spongy or cushioned materials where lifting the foot out of contact with the material helps in the feeding action. Only a very few household machines have a walking foot, but this type of feed is common in industrial heavy duty machines.
Factory machines are sometimes set up with an auxiliary
puller feed, which grips the material being sewn (usually from behind the needles) and pulls it with a force and reliability usually not possible with other types of feed. Puller feeds are seldom built directly into the basic sewing machine. Their action must be synchronized with the needle and feed action built into the machine to avoid damaging the machine. Pullers are also limited to straight seams, or very nearly so. Despite their additional cost and limitations, pulling feeds are very useful when making large heavy items like tents and vehicle covers.
Manual feed is used primarily in freehand embroidery, quilting, and shoe repair. With manual feed, the stitch length and direction is controlled entirely by the motion of the material being sewn. Frequently some form of hoop or stabilizing material is used with fabric to keep the material under proper tension and aid in moving it around. Most household machines can be set for manual feed by disengaging the drop feed dogs. Most industrial machines can not be used for manual feed without actually removing the feed dogs.
Finally, we turn to zig-zag and decorative stitches. Household machines perform only lockstitch, but almost all of them can do so in many different directions. By moving the needle from side to side, and changing the feed direction and distance, both fancy and utilitarian patterns can be sewn. The simplest example is zig-zag, where the needle moves to the left for one pass through the material, then to the right for the next pass. A household "blind stitch" takes several stitches in a straight line followed by one stitch to the right, then back to the original line. In older machines, the needle and feed motion is controlled by mechanical cams. Some household machines even offer a slot for user-replaceable custom stitch cams. In more recent designs, the needle and feed motion is controlled by electric motors. By adding controlled motion of the material being sewn through an additional set of motors, arbitrary customized patterns of 100 cm or more in each direction can be sewn, opening the door to the very popular category of programmable household embroidery machines.
While even extremely basic household sewing machines have zig-zag and a small selection of other stitch patterns, industrial machines do not. Industrial zig-zag machines are available, but uncommon. There are essentially no fancy-pattern stitching industrial machines, other than dedicated embroidery and edge decoration machines. Most industrial machines sew only a straight line of stitches. Even something as simple as a bar-tack or a buttonhole stitch is usually done by a dedicated machine incapable of doing anything else. When a variety of decorative stitching is required rather than a single stitch, a "commercial" machine (basically a heavy duty household machine) is usually employed.
Sewing needle
The
sewing needleA sewing needle is a long slender tool with a pointed tip. The first needles were made of bone or wood; modern ones are manufactured from high carbon steel wire, nickel- or gold plated for corrosion resistance. The highest quality embroidery needles are made of platinum...
for a machine has six parts
-
- the shank
- the shaft
- the eye
- the point
- the groove
- the scarf
The groove leads the thread into the eye from the front. The scarf is a cut in in back of the eye and aids the bobbin shuttle to pick up the thread.
See also
- Textile industry
The textile industry is a term used for industries primarily concerned with the design or manufacture of clothing as well as the distribution and use of textiles.-Cotton stage:...
- Home appliance
Home appliances are electrical/mechanical appliances which accomplish some household functions, such as cooking or cleaning.Traditionally, home appliances are classified into:*Major appliances *Small appliances...
- Overlock
An overlock stitch sews over the edge of one or two pieces of cloth for edging, hemming or seaming. Usually an overlock sewing machine will cut the edges of the cloth as they are fed through , though some are made without cutters. The inclusion of automated cutters allows overlock machines to...
- Merrow Sewing Machine Company
Merrow Sewing Machine Company is a manufacturer of sewing machines, established in 1838 as the Merrow Company by J. Makens Merrow. Originally a gunpowder manufacturer, in 1837 the company built a knitting mill, and in 1887 evolved to design, build and market sewing machines exclusively. Best known...
- Bernina Sewing Machine
Bernina is Swiss company that manufactors sewing machines. The name comes from Piz Bernina, a mountain in the Swiss Alps.-History:In the spring of 1890, Karl Friedrich Gegauf moved from Tägerwilen to Steckborn, Switzerland. and in Feldbach Convent established an embroidery shop and a mechanical...
- Singer Sewing Machine
- Pfaff
Pfaff is a manufacturer of sewing machines and is now owned by the VSM Group AB .- History :Pfaff was founded in Kaiserslautern Germany in 1862 by instrument maker Georg Michael Pfaff . Pfaff's first machine was hand-made, and designed to sew leather in the manufacture of shoes.-External links:**...
- Husqvarna Viking
VSM Group AB , previously named Husqvarna Sewing Machines is a company based in Huskvarna, Sweden.The company is best known for "smart" sewing machines and sergers under the brands Husqvarna Viking and Pfaff...
External links