ArticleslgStudy

science

Lace machine

Lace machine is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Lace machine rather than just read about it. In short: Lace machines took over the commercial manufacture of lace during the nineteenth century. History The stocking frame was a mechanical weft-knitting knitting machine used in the textile industry.

Lace machine — main illustration
Lace machine — illustration

Key takeaways

  • Lace machine belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Lace machine to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Lace machine from memory before moving on to harder problems.

Reference excerpt

Lace machines took over the commercial manufacture of lace during the nineteenth century.

History The stocking frame was a mechanical weft-knitting knitting machine used in the textile industry. It was invented by William Lee of Calverton near Nottingham in 1589. Framework knitting was the first major stage in the mechanisation of the textile industry at the beginning of the Industrial Revolution. It was adapted to knit cotton, do ribbing and by 1800, with the introduction of dividers (divider bar) as a lace making machine. Bobbinet machines were invented in 1808 by John Heathcoat. He studied the hand movements of a Northamptonshire manual lace maker and reproduced them in the roller-locker machine. The 1809 version of this machine (patent no. 3216) became known as the Old Loughborough, it was 18 inches (46 cm) wide and was designed for use with cotton. The Old Loughborough became the standard lacemaking machine, particularly the 1820 form known as the Circular producing two-twist plain net. The smooth, unpatterned tulle produced on these machines was on a par with real, handmade lace net. Heathcoat's bobbinet machine is so ingeniously designed that the ones used today have suffered little alteration. However during the next 30 years inventors were patenting improvements to their machines. The ones that stand out are the Pusher machine, the Levers machine (now spelled Leavers) and the Nottingham lace curtain machine. Each of these developed into separate machines. Others were the Traverse Warp machine and the Straight Bolt machine.

Time line 1589 – William Lee of Calverton, a village some 7 miles from Nottingham, invented the stocking frame 1768 – Josiah Crane invents the hand-operated warp knitting machine 1791 – The Englishman Dawson solves the mechanization of the warp knitting machine. 1801 – Joseph Marie Jacquard invents the Jacquard punched card loom 1808 – John Heathcoat patented the bobbin net machine in Loughborough 1813 – John Levers adapted Heathcoat's machine in Nottingham producing the Leavers machine (sic), which could work with a Jacquard head 1835 – general application of pierced bars and the Jacquard apparatus 1846 – John Livesey, in Nottingham, adapts John Heathcoat's bobbinet machine into the curtain machine 1855 – Redgate combines a circular loom with a warp knitting machine 1859 – Wilhelm Barfuss improves on Redgate's machine, called Raschel machines (named after the French actress Élisabeth Félice Rachel) 1890s – Development of the Barmen machine

Typology

Stocking frame

The stocking frame, invented in 1589 by Lee, consisted of a stout wooden frame. It did straight knitting not tubular knitting. It had a separate needle for each loop- these were low carbon steel bearded needles where the tips were reflexed and could be depressed onto a hollow closing the loop. The needle were supported on a needle bar that passed back and forth, to and from the operator. The beards were simultaneously depressed by a presser bar. The first machine had 8 needles per inch and was suitable for worsted: The next version had 16 needles per inch and was suitable for silk.

Warp frame

This includes the later Raschel machine

Bobbinet

The bobbinet machine, invented by John Heathcoat in Loughborough, Leicestershire, in 1808, makes a perfect copy of Lille or East Midlands net (fond simple, a six-sided net with four sides twisted, two crossed). The machine uses flat round bobbins in carriages to pass through and round vertical threads.

Pusher

In 1812 Samuel Clark and James Mart constructed a machine that was capable of working a pattern and net at the same time. A pusher operated each bobbin and carriage independently allowing almost unlimited designs and styles. The machine however was slow, delicate, costly and could produce only short "webs" of about two by four yards. The machine was modified by J. Synyer in 1829. and by others before. Production had its heydays in the 1860s and ceased around 1870–1880.

Leavers

John Levers adapted Heathcoat's Old Loughborough machine while working in a garret on Derby Road Nottingham in 1813. The name of the machine was the Leavers machine (the 'a' was added to aid pronunciation in France). The original machine made net but it was discovered that the Jacquard apparatus (invented in France for weaving looms by J M Jacquard in about 1800) could be adapted to it. From 1841 lace complete with pattern, net and outline could be made on the Leavers machine. The Leavers machine is probably the most versatile of all machines for making patterned lace.

Nottingham lace curtain machine

The lace curtain machine, invented by John Livesey in Nottingham in 1846 was another adaptation of John Heathcoat's bobbinet machine. It made the miles of curtaining which screened Victorian and later windows.

Barmen

The Barmen machine was developed in the 1890s in Germany from a braiding machine. Its bobbins imitate the movements of the bobbins of the hand-made lace maker and it makes perfect copies of Torchon and the simpler hand-made laces. It can only make one width at a time, and has a maximum width of about 120 threads.

Embroidery machines These produce Chemical lace or Burnt out lace on bobbinet or dissolvable net, For instance the Heilmann of 1828, Multihead, Bonnaz, Cornely and the Schiffli embroidery machine.

Social effects Part laces like Honiton and Brussels profited to a certain degree from mechanisation. Part lace is made in pieces or motifs, which are joined together on a ground, net or mesh, or with plaits, bars or legs. With mechanisation, the complex motifs could be mounted on machine made net. New net based laces emerged, such as Carrickmacross and Tambour lace. By 1870, virtually every type of hand-made lace (pillow lace, bobbin lace) had its machine-made copy. It became increasingly difficult for hand lacemakers to make a living from their work and most of the English handmade lace industry had disappeared by 1900. Few were interested in tracing and curating old laces and few courses were available to keep the technique alive, until a revival in the 1960s.

References

Notes

… excerpt ends here. Continue reading the full article.

Illustrations

Lace machine: Carrickmacross lace
Carrickmacross lace
Lace machine: Stocking Frame 1820
Stocking Frame 1820
Lace machine: Bobbinet schematic
Bobbinet schematic
Lace machine: Leavers lace machines
Leavers lace machines
Lace machine: Replacing the bobbins on a Nottingham lace curtain machine
Replacing the bobbins on a Nottingham lace curtain machine

Worked examples

Example 1 — a first encounter with Lace machine

Start with the simplest possible case. Write down what Lace machine claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Lace machine before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Lace machine ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Lace machine

In research
Lace machine appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Lace machine in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Lace machine is common in secondary-school and first-year university syllabi. It links to neighbouring topics Lace-making machinery, Textile machinery, so understanding it makes those chapters shorter.
In everyday life
Look for Lace machine outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Lace machine in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Lace machine means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Lace machine out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Lace machine in simple terms?

Lace machines took over the commercial manufacture of lace during the nineteenth century. History The stocking frame was a mechanical weft-knitting knitting machine used in the textile industry.

Why does Lace machine matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Lace machine?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Lace machine.

Tags

  • Lace-making machinery
  • Textile machinery

Keep exploring