Phuket expat re-invents the way sewing machines work
British inventor creates a new sewing system that eliminates the bobbin.
When you list the worlds top inventions the sewing machine is rarely included, it’s lucky if it makes it into the top 50!
But there are very few moments in our daily life when we are not close to something that’s been produced using a sewing machine.
Now a recent patent, developed by a Phuket expat, is set to bring the sewing machine back into the forefront. Templeton Hancock, a British sewing machine mechanic and former sewing machine demonstrator living in Rawai, has created a new Everlasting Bobbin Sewing (EBS) System that eliminates the need for constantly changing thread bobbins.
A 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. In non-electrical applications the bobbin is used for tidy storage without tangles – Wikipedia
“The inception to create the EBS System came to me after a conversation I had with a customer who voiced her frustration with having to continually change the bobbin. It made me question why no one had come up with a satisfactory solution to discard it.”
“The EBS System offers huge benefits not just to manufactures but to everyone who regularly uses a sewing machine; it saves time, improves the quality and finish of garments, reduces waste and make the sewing machine more user-friendly and lessens the impact on the environment.”
The first patented sewing machine was in 1790 to an Englishman, Thomas Saint. Over the next 60 years, the machine was modified and improved to something that is still mechanically recognisable in comparison to today’s machines.
Since the 1980’s there have been significant electronic advancements to the sewing machine, but the need for a refillable bobbin has always harkened back to its introduction in 1853. Over the years, there have been many who have tried to solve this bobbin dilemma. The simple EBS System provides the solution.
So, how does it work?
With current technology, the needle and upper thread pass down into the machine bed. As the needle draws back up, the upper thread is left behind, just slightly, but it is enough that a loop is formed. Machines are timed so that a rotating hook underneath the machine, spinning off a centrally placed drive shaft, can catch this loop and pass it over the bobbin and bobbin case to create a locking stitch.
The EBS System is different. The drive shaft is moved to one side and the hook is placed within a bearing which has drive teeth on its circumference. A void is now created within the bearing which allows for a thread feed tube to supply endless amounts of thread to freely pass without interruption from the rotating hook, eliminating the need for a bobbin.
The bobbin holds, on average for #40 weight thread, around 34.3m of thread. In manufacturing this can equate to the bobbin running out on average, every 9-11 minutes. Methods of turn around to get the machine operational again can vary from 22 seconds to 3 minutes, cutting into the amount of hourly units produced and also increasing wastage/seconds garments for the item in production when the thread ran out.
Analysis of Operation in manufacturing puts aside an average 20% of Standard Allocated Hours (SAH) for changing the bobbin, adjustments and staff rest breaks. By removing the need to refill the bobbin and using the EBS System, manufacturing can be increased by as much as 19%.
Realising the problem with the bobbin, many manufacturers have opted for using a chain stitch instead of a locking thread for seaming. The downside being that the chain stitch uses more thread, creates a bulkier seam and is not as strong as the lock stitch.
By using the EBS System instead of a chain stitch, a factory making jeans (for example) could save an average of 8.9m of thread per unit produced (depending on method of manufacture), and at the same time produce a better quality garment with stronger and less bulky seams. 8.9 metres multiplied by the amount of units produced each day, week and month, equates to being considerable saving even before you add back in the garments that would usually be discarded as wastage/seconds which have now been mostly eliminated.
The EBS System is not just limited to clothing. Footwear, upholstery, luggage and automotive manufacturers are also to benefit from the lack of a bobbin. When the bobbin thread runs out, holes have been made in the material and it takes a short time before the machine operator notices.
The precision of the fit and strength of the material has been compromised and a labour intensive task now begins to reinforce the stitch and try to match the holes already created in the material.
A continuous stream of thread will reduce the amount of wastage of leather and vinyl products in the pursuit of perfection that is expected and demanded by consumers.
The EBS System is not just for industrial use.
The simplicity of the design makes it versatile to be used in the domestic market. The EBS System is a relief to home sewing enthusiasts whose interests are within home decor and quilting. No more will they suffer the frustration when the thread runs out in the middle of a project.
The versatility of the EBS System is that it can also be used with the current refillable bobbin for those small repairs and quick fixes that would require a variety of short lengths of different coloured thread.
The EBS System also looks to the future. A.I. and automation is making advances into the sewing industry, but these machines still need to be carefully monitored as they still rely on the need for a refillable bobbin. Using the EBS System machines will enable manufactures to run for 24 hours with very little supervision, with an endless flow of lower lockstitch thread.
US Patent #10156034 PCT#IB2019/050843
For further information contact Templeton Dean Hancock… templeton_dean@hotmail.com
Templeton Hancock, Phuket-based seining machine mechanic and inventor
