. India rubber world. of Ceararubber. On the other hand there are scores of large Europeanmanufacturers—the Michelins for example—who have been ableto get better results in many lines of goods with Ceara rubberthan with Para even. It is therefore of the greatest interest tothe trade that a firm like Hirsch & Co. has gone into suchplanting. It will undoubtedly aid not only in the production ofmore and better Ceara rubber, but in showing American manu-facturers the true value of this excellent gum. MH. WILLIS MISQUOTED. In the Bolctin da Superintendcncia da Borracha, No. 1, pub-lished May 30, th
. India rubber world. of Ceararubber. On the other hand there are scores of large Europeanmanufacturers—the Michelins for example—who have been ableto get better results in many lines of goods with Ceara rubberthan with Para even. It is therefore of the greatest interest tothe trade that a firm like Hirsch & Co. has gone into suchplanting. It will undoubtedly aid not only in the production ofmore and better Ceara rubber, but in showing American manu-facturers the true value of this excellent gum. MH. WILLIS MISQUOTED. In the Bolctin da Superintendcncia da Borracha, No. 1, pub-lished May 30, the statement is made that Mr. John C. Willis,the director of the Botanical Gardens in Rio Janeiro, had beenexperimenting with the Manicoba tree and that this rubber gaveas good results as Hcvea. This is a misquotation, as Mr. Willissays there is only one Manicoba in the botanical gardens andthat this has never been tapped. The experiments that he hasbeen making have been confined exclusively to the Hevca Ce.\r.\ Rubber G.\therers on \tiox Serra. October I. 1913. THE INDIA RUBBER WORLD 11 The Plastometer—A Rubber Testing Instrument. By B. Denver Coppage. THK inslrunient illustrated here, kuowu as The Plastom-eter, was exhibited by the inventor at the RubberConference. It was designed primarily to meet theneeds of its manufacturers, The Pusey & Jones Co., manu-facturers of paper making machinery. The rubber covered rolls used in the press part of papermachines must be covered with densities that have beenselected suitable to the paper to be made; and it is very im-portant that the density be as ordered or the rolls will not beacceptable to the purchaser.
Size: 1944px × 1285px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1800, bookdecade1890, bookidindiarubberworld49phil
