A warm welcome to all those who are going through this site.
As it claims ‘it’s all about pneumatic tires’. It is not due to sudden love for US, but because it is the correct spelling. Let me quote here what I read.
The etymology of "tire" is that the word is a short form of "attire", and that a wheel with a tire is a dressed wheel.
“The spelling tyre does not appear until the 1840s when the English began shrink fitting railway car wheels with malleable iron. Nevertheless, traditional publishers continued using tire. The Times newspaper in Britain was still using tire as late as 1905. The spelling tyre began to be commonly used in the 19th century for pneumatic tires in the UK. The 1911 edition of the Encyclopedia Britannica states that "the spelling 'tyre' is not now accepted by the best English authorities, and is unrecognized in the US", while Fowler's Modern English Usage of 1926 says that "there is nothing to be said for 'tyre', which is etymologically wrong, as well as needlessly divergent from our own older and the present American usage". However, over the course of the 20th century, tyre became established as the standard British spelling.
This site at present hosted by a group of four persons who served in the tire industry. They are:
K. Ganapathy: 75 years old. Worked in CEAT, India from 1963 to 1975 and in Modi Rubber Ltd. from 1975 to 1991. From 1992 to 2008 as Executive Director of Quality Circle Forum of India.
Kiran M Desai: 71 years old. Worked in CEAT, India from 1969 to 1976 and in JK Tyres from 1977 to 1980 and once again in CEAT from 1980 to 2005. Now a consultant for tire industries.
R. Rajasekharan: 69 years old. Worked in MRF, India and then Modi Rubber Ltd. for 35 years in manufacturing operations, customer & technical service in markets & training & development. Now as a consultant propagating Quality Circle and other quality concepts.
A.K. Kaushik: 57 years old. Worked in Modi Rubber Ltd. from 1983 to 2001. Now as a consultant propagating Quality Circles and other quality concepts.
To start with that it is not started with an idea for any monetary gain but purely as a service. Another point is that it is not going to be all at onetime effort. Topics will be added over a period gradually.
Hence, we expect many more to join us. It can be you also if you are interested in it.
Another point is that it is not going to be all at one time effort. Topics will be added over a period gradually. Hence, we expect many more to join us. It can be you also if you are interested in it.
There are many reasons for us to create this website.
Tires are a great, useful and an excellent product and they never get tired in doing their job. We four have served in this wonderful industry. We created this site keeping in mind 'workers' rather 'artisans' who create this wonderful product.
Then tires are not a simple product. What started as a simple product to make comfortable driving of a bicycle, developed into a great product which calls for understanding organic materials and engineering concepts. It is difficult subject even for qualified technicians.
There was a time, when we entered in the industry in 60s of past millennium general belief was as far as the workers were concerned that they should just obey the orders and strictly follow the instruction. It was believed as the right way to perform. They were often quoted army as an example and were told that a discipline like that will make them do a better job.
Strangely it was Japanese who were known for unquestionable loyalty brought changes in this thinking. Great quality gurus like Kaoru Ishikawa, Shigeo Shingo, Masaki Imai, Takashi Osada, Genichi Taguchi etc. who in turn learnt from Dr. Edward Deming, Dr. Joseph Juran etc. stressed the importance of knowledge based working and trust and mutual respect to the workforce.
We three of us among the present group of four of this site spent and spending time for the last three decades propagating quality concepts to various organizations. We are seeing a remarkable change in the reputed industries. Most of them have now knowledgeable workforce. This in turn we see created a better working atmosphere in majority of the industries.
Still, in most of the places knowledge is restricted to the job they do but the overall knowledge about the product is far from desired.
Of course, such knowledge input will take a long time. Industries have practical difficulties. So, the best solution will be a site like this for all industries. In that case learning will be from here and doubts arising only need to be cleared by the organization. Realizing that need made us to venture in this effort.
Besides that, pneumatic tire is not just a run of the mill product but rather an enigmatic one. It is less than hundred years old product. It is getting improved regularly but no replacement so far.
This is in a world which is in a most fierce phase of development now where rapid changes are order of the day.
It is said at the at the end of 19th century Charles H. Duell who was the Commissioner of US patent office in 1899, on the last day entered in his register "everything that can be invented has been invented." Of course, it turned out to be a fictitious one.
On the contrary inventions gained momentum only in 20th century.
Let us see what happened at the end of 20th Century.
Bill Gates in his book ‘Business @ the Speed of Thought: Using a Digital Nervous System’ published in 1999 predicted in the introduction of the book that in the next ten years or in the first decade of 21st century inventions will be more than what we saw in the last fifty years of 20th century. In fact, he under estimated it.
Not only changes are happening in a mind-boggling way but many of what introduced too is becoming obsolete fast and new one appearing in its place with uncertainty about its life period.
Where is Typewriter? Where is carbon paper? Where is Pager? Look at the cameras and TV and changes happening to them?
Nobody thought computer will become a personal home product. It became and your five years old kid can handle it better than you. Now it is on the way out because components can become part of our attire and we don’t need one separate equipment. Pranav Mistry an Indian boy demonstrated in his TED speech.
Look at the cellphone? What all it has replaced. Just two to three-decade earlier communication was greatest bottleneck.
But strangely pneumatic tire is still holding the ground. Many are working on for an alternate one but they have a long way to go. Michelin has come out with Tweel, Hankook with assorted types. They have a long way to go. Tweel can’t be an aircraft tire, at least for quite some time. We have also put here one write up on the developments going on.
In case of pneumatic tire, it is the pressurized air that carries the load. We used to say that it is the air that carries the load and tire is only a cover holding it. It is more significant and appropriate too. Look at an aircraft weighing more than 350 tons landing at a speed of 160 miles.
The high-flying tire is inflated to 200 psi, roughly six times what put in an automobile tire, and the tires on an F-16 fighter are pumped to 320 psi.
Here a few words about Microsoft co-founder Paul Allen. He funded SpaceShip-One, the first private aircraft to successfully put a civilian in suborbital space, earning him and designer Burt Rutan the Ansari X-Prize in 2004.
Now, his Stratolaunch Systems built the world's largest airplane, one designed to launch satellites from mid-air into low-earth orbit. This monstrous Stratolaunch airplane is intended to carry a rocket slung beneath the central part of the wing, between the two fuselages, and release it at 35,000 feet. The concept is that the rocket will then launch into space and deliver satellites into orbit.
For comparison, the empty weight of the world’s largest airliner, the double-decker Airbus A380 designed to carry around 550 passengers, is 610,000 pounds. And the empty weight of Boeing’s largest jet, the 747-8, is a paltry 435,000 pounds.
Paul Allen’s aircraft is 238 feet from nose to tail, and it stands 50 feet tall from the ground to the top of the vertical tail.
It will carry about 250,000 pounds of fuel and a rocket payload of up to 550,000 pounds or 275 tons, giving it a maximum takeoff weight of 1.3 million pounds (650 tons)— equal to more than two fully loaded weight of the A380.
The aircraft’s full weight to rest on its28 wheels.
The typical aircraft tire, not tires, a single tire, can handle a 38-ton load. It is expected to do 500 times landing or grounding before getting retreaded and should be able to take up seven or eight such retreading. Like a cat, it has nine lives.
It is estimated that everyday more than 100 thousand flights are landing (Most of the aircrafts many a time in a day) throughout the world in varying climatic and air strip conditions.
Six sigma quality standards are not sufficient for aircraft tires (99.99966% accuracy). We can’t afford to have one tire bust problem once in three days while landing. One thing almost one can never see is a blow out when a plane, lands.
The strength to tires come from their strong body and carcass is the terminology used for that. They were high denier nylon and now changed to aramid. Each layer of the carcass contributes to its load bearing and air pressure resisting capabilities.
To conclude it is our strong belief that pneumatic tire is here to stay for a long time. It is possible a new material or a compound may be invented which can be used to injection mold a tire as one replacing all these elaborate processes needed now. Still the air will carry the load.
As said there is no dramatic change when it comes to pneumatic tires. Impressive improvements are taking place here too, but basic idea remains the same.
It is a big and important industry. Pneumatic tires are manufactured in about 450 tire big factories around the world. In 2004, $80 billion of tires were sold worldwide, in 2010 it was $140 billion, and is expected to grow to $258 billion by 2019. In 2015, the US manufactured almost 170 million tires. Over 2.5 billion tires are manufactured annually, making the tire industry a major consumer of natural rubber. It is estimated that by 2019, 3 billion tires will be to be sold globally every year.
The top five tire manufacturing companies by revenue are Bridgestone, Michelin, Goodyear, Continental, and Pirelli.
In India, it is an 8-billion-dollar industry. A small write up about Indian tire industry can also be seen here.
We think this should be sufficient to establish credibility and importance of pneumatic tires.
Next point is how competent we are to do full justice to this task.
We are fully aware of our limitation. All we are doing is compiling them in an order from various write ups, books etc. available. Google search, Google play, Wikipedia, many organizations website are helping us. We are trying to do it without any copyright violation. If perchance we err we are ready to do the needful promptly.
Then as we mentioned it is purely a non-profit service effort. We are not aiming to have any personal monetary gain out of this.
My other three friends are still working. I am the only 75 years old man fully engaged in it and I left the industry 35 years back. So, we request other knowledgeable people to join us in this. It can be in any way. It can be an active involvement, suggestion, contribution, correction, improvement, propagation etc.
Even though it is started keeping Indian tire industries in mind we will be extremely happy if it is made as an international effort. Understanding the importance of it we are making a separate appeal in this write up.