curl their outer edges into the curl of the ends is injected a rubber gasket material graphically illustrated it looks like this later on when the ends are seemed on the can body this material will provide an air tight bond between the body and the m p s now to make the candidate this body maker actually operates too fast for us to see how they can bodies for so after the body blanks which you saw being cut earlier are fed into the body maker we will follow it's intricate steps in slow motion and with graphic illustration first the body blanks move to a not ging stage here small notches are cut from the corners to eliminate a double thickness of metal when the ends are seemed on the body blank is then formed and hooked into the familiar shape of the can around the body maker bodies speed along to where they are flange studies jan so the tops and bottoms will fit on here you will see why the body blanks were not not just the lemonade a double thickness of metal by the side seam overlaps the flange part only two layers come together at this point  permitting a perfect seal when the end pieces are seemed on air in the can making plant only one of the end pieces is double seemed in place and the other end left open so they can maybe easily failed at the canneries this operation is extremely important it calls for the utmost precision one hand is placed on the can body it curls over the flange on the body and precisely the right amount remember that rubber gasket material in the curl of the end pieces while this material provides a bomb between the layers of metal to ensure a permanent air tight seal as they are pressed together to give us the finished double s cans with only one hand seemed on leave the double seam are ready for final testing fresh air is a wonderful thing but not in a can by means of air pressure this machine detects a can that might leak air and tosses it out as a suspect to be checked separately against a can like the red one we know to be a leaker and that is the seemingly simple can require such precision in its making that any variation in excess of a few thousands of an inch are sufficient to cause automatic rejection  to achieve high speed production with such precision as place the can manufacturing industry in the front rank of the mass production leaders of the world but how do all these billions of cans get to the right place at the right time food cans for instance well that takes a lot of planning a lot of experience and good teamwork between the can manufacture the canning and the farm actually there's hardly a minute of the day or night that you won't see trucks loaded with containers or freight cars similarly loaded on their way to the canneries scattered across the land such jour the uncertainty of the weather so the weather holds good crops should be ready about the thirtieth give or take a day on either side so you want your candor on the and you make it the twenty first twenty readiness depends upon the weather not weather and its effect on a crop like peas for example is a mighty unpredictable thing you can't depend on guesswork that's why the american can company develop this machine the tender ometer it shows one of the crop has reached the proper stage of maturity for best quality such information together with the council of agronomists sent out by the can makers help scanners and farmers select the right time for harvesting well anything i'd say you can start taking him in next monday and a special time of the day or the i leave that up to me monday is ok with me but sometimes unexpected things happen well it's plenty hot out here the temperature shot right up we took another t it goes for the entire can making industry operate on this principle enough cans at the right place at the right time to meet the canners need for us every year billions of whatever it contains the contents must be in perfect condition word for that is dependability dependability built by the turn allows vigilance of modern industry and science into every single cat or whatever the contents but ever their ultimate purpose goal is satisfaction there is nothing more important than serving the health and well being of multitudes of people providing protective containers for the food of a nation is such a service about which here's something to remember no no shown don't do away would be like well like doing a chicken and throwing away the broth right for not only do canned foods contain as much nutrition as fresh cooked foods but nature's own nutrients are seal these foods are at their very best and none of the precious values can now let's eat the likely and we'll add the p s just a few minutes before we are ready to say the least little keep them hot and you know they are already cooked perfectly you can depend on that dependability and nutrition these essential characteristics of canned food are assured by constant laboratory studies of canning techniques the first laboratory in the industry devoted to such studies was established by the american can company in one thousand nine hundred six since then scientific study and research have grown with the industry today it reaches into every phase of canning and can making ten play for instance ten itself comes from far off lands us every world crisis threatens its supply that can making industry is therefore working on coatings and bonding materials that will replace stand in can making will be better than tan and best of all always available here on our own continent the industry constantly looks to the com scales of science and manufacturing to solve many problems which directly affect our daily lives for instance behind this simple familiar twist of the wrist lies a story of teamwork typical of the achievements in the can making industry that bring the homemaker convenience and satisfaction here's how it came about ed this is mr ward the coffee roaster i told you about  meat out of our research staff pleased to meet you how do tell us what you're up against mr ward well it's short and sweet we pack coffee here is a container using it's good but it's not airtight you know coffee when it's freshly ground and exposed to air naturally lose its freshness and there goes our flavor has been on the shelf for a while you can guess what we've got stale coffee probably if it stays there long enough right then folks don't like it well there's only one real answer to that since is the air the ruins your coffee you've got to take the air out of the can but that can cause the can is what you need that sounds good but i've never seen a bac coffee can because easy to pack and easy for the housewife to open well those are our problems and they're toughens let's work on the chair of the you've got to develop a can strong enough to hold a vacuum and yet still be easy to let me think it over a while i'll try to come up with something but i warn you it may be designing machinery to produce this you let me worry about that going to get an idea all right ok draw yourself a sanitary tan only a little shorter and about five inches in diameter inside now inside they can drop a collar from the bottom of the be up to the underside of the cover and add a curl of the top of the col that puts the bottom of the collar into the b to hold it in place and just above the draw a double score on the outside of the  too after the cans are filled with coffee and loosely covered they pass into a chamber where the vacuum closing machine draws out the air almost at the same time th tightly doubled seemed on so that no lawyer can possibly get back again so from then on the vacuum coffee can not only solve the roasters problem of protecting his product freshness even though months or years of my past before the cans were opened but it also meant the consumers demand for easy opening more than that had led to other developments that make the housewives job easier for it was an ideal container for override a zero product especially shortening so so far freshness and convenience instead of this this and for sanitar or perhaps the whole story can be summed up in the vast difference between this and with all it signifies in our modern way of life this so our basic idea adapted to human needs is like a pebble dropped in a pool the need is the pebble the pool our democratic way of life and the answer the rings spreading ever outward touching the lives of millions of our everlasting good that is why this key is not just a little household gadget symbol of challenges mapped and victories won for the good of all many many challenges and many answers whether containers of steel or paper or a combination of both they are products of the can makers imagination and skill here are some of them just a few all of them we know we recognize each one instantly familiar to us from almost daily use many of their colorful and informative labels as seen on store shelves or skillfully lithograph them permanently baked on in the can making plant all as part of the can making process disposable container for the dairy industry yes these containers are familiar because they are part of the pattern of our living an essential indispensable part of our way of life even recreation just another type of can just as if these tennis balls were peas or beads or beans they will come out as perfect as they were when they were put in while man may survive without tennis there have been all too many occasions when a life has depended upon the blood plasma in that very same kind of can coming out as perfect as it was when it went in to the men and women who make the can there could be no greater satisfaction than its use for a purpose such as this thus every new ideas sets in motion a succession of ideas that expand an ever widening circle saw the miracle of the can continue bringing to countless supporting industries added expansion and prosperity to millions of people more jobs greater security and better way of life the can manufacturing industry ranks among the first ten indispensable industries of the world hundreds of thousands of men and women in the united enterprise first planted by the pioneer can makers of america and nurtured by their successors has truly brought about miracle of benefits to our be a miracle which continues daily for all people for a day every day is harvest day daily we have the assurance of nature's bounty both for today and tomorrow much we have today and our promise of the future is ever more and more and just as harvest time means more than the ending of one  within itself the seeds of another fruitful spring so this tumblers little servant of your daily life contains not just a product but symbolizes a more abundant life for all freedom loving people everywhere in the