December i, 1905.] 



THE INDIA RUBBER "WORLD 



83 



NEW GOODS AND SPECIALTIES IN RUBBER. 



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"RE-NU" VACUUM PRESERVING JARS. 



GRAY STAUNTON (Evanston, Illinois) has had patented 

 an improvement in sealing preserving jars, an applica- 

 tion of which is Illustrated in the accompanying draw- 

 ing. The invention relates primarily to jars or other 

 vessels for hermetically sealing and preserving fruits or other 

 foodstuffs, beverages, and so on, and has for its object the 



providing of simple and ell'icient 

 means whereby the cover may be 

 held on by atmospheric pressure 

 and readily released without in- 

 juring the cap, so that the vessel 

 may be refilled and used an in- 

 definite number of times, thus 

 adapting the invention for house- 

 hold as well as other purposes. 

 The illustration relates to a jar 

 the upper end of which is formed 

 with a flange upon which rests a 

 cap so shaped as to form a tight 

 connection. Around the edge of 

 the cap is a rubber gasket, indi- 

 cated in the drawing. The center 

 of the cap is formed with a small 

 vent, closed by means of a rubber 

 valve. In the use of such preserv- 

 ing vessel a vacuum or partial vac. 

 uum within the same may be cre- 

 ated by bringing the contents to a boiling temperature, which 

 will cause the outside atmospheric pressure to tightly close 

 the rubber valve in the cap ; or the air at the top of the ves- 

 sel may be exhausted by means of a simple pump. In tfie 

 latter event the invention maybe used for preserving materials 

 without cooking or any other employment of heat in connec- 

 tion with the canning process. Under the atmospheric press- 

 ure, after the vacuum is formed, the flattening of the rubber 

 gasket serves more completely to seal the jar. This invention 

 is adapted to the use of any other material than glass for jars, 

 and the form is not necessarily such as is indicated in the draw- 

 ing. The suction pump referred to may be of the simplest con- 

 struction, such as may be provided for a few cents. Patents 

 have been granted in the United States (No. 793,107), France, 

 Belgium, Italy, Spain, Canada, and Japan, and applications are 

 pending in other countries. [The Vacuum Appliance Manu- 

 facturing Co., Postal Telegraph building, Chicago.] 

 AN AUTOMATIC AIR TIGHT COVER. 

 There have come into wide use in Great Britain in the bot- 

 tling and preserve provision trades air tight covered glass jars 

 the sealing of which, with patent tit- 

 tings, is accomplished as follows: The 

 packages referred to are closed by plac- 

 ing an India-rubber ring under a metal 

 lid, which is pressed into place and 

 held down temporarily by a clip. The 

 glass jar, with its contents and lid in 

 position, is then boiled, and the expan- 

 sion of the contents drives the air out, 

 so that when the package is cold again, a vacuum has been 

 formed under the lid, which is pressed down by the atmos- 

 phere, and thus hermetically sealed, after which the clip is re- 



moved. At least this has been the practice for some time, but 

 with a view to doing away with the use of India-rubber the 

 Automatic Air Tight Cover, Limited (17, Thavies Inn, Holborn 

 circus, London, E. C), controllers of the patent referred to, 

 have introduced a new style, figured herewith, in which the 

 rubber ring is replaced by a special composition let into the 

 rim of the tin cover, the composition and the cover being in 

 one piece. This is placed in position on the top of the glass 

 jar and the same procedure followed as when the rubber ring 

 is in use. The new composition is referred to as containing no 

 sulphur or other material likely to act upon the tin, nor does 

 it perish, being unaffected by the boiling process. In opening 

 the jar all that is necessary is to pierce the lid to destroy 

 the vacuum, or to raise it from the side as shown in the illus- 

 tration. Some of the largest British provision packing firms, 

 including Lipton, Limited, are mentioned as using this system. 

 FOSTER PNEUMATIC HEEL CUSHION. 

 The article herewith illustrated is designed to be worn inside 

 the shoe, under the heel. It is a springy pneumatic device 

 which slips readily into place and requires no effort to make it 

 remain there. The construction of the rubber is such that it 

 gives a maximum amount of resilience and absorbs all the jar 

 of walking. It is claimed that this cushion 

 not only gives comfort to the wearer, 

 but that it improves the fit of the shoe. 



An encouragmj4 sale of this article is reported, and it is sup- 

 plied in any size desired in shoes for men and women. It 

 is designed to retail at 25 cents per pair. [Foster Rubber 

 Co., No. 370 Atlantic avenue, Boston.] 



THE " NO SLIP " HEEL. 

 A NEW heel illustrated herewith, the invention of Joseph 

 Martin, is referred to as having been designed by a man who 

 has attached many rubber heels at the bench, and has thus 

 become familiar with the merits and demerits of many brands. 

 This is principally a leather heel, 

 the rubber part being indicated 

 by the lighter shaded section of 

 the cut. In form the rubber sec- 

 tion suggests the steel plate often 

 applied to leather heels to keep 

 them in shape, but in size it is 

 considerably larger than the ordi- 

 nary steel plate. The rubber sec- 

 tion is flush with the leather heel, 

 and an inner edge of it extends 

 within the heel to further assist 

 in keeping it in position. The 

 rubber is placed where the wear and jar first come. These heels 

 are referred to as being much lighter in weight than the ordi- 

 nary rubber heel, and their durability is assured by the use of 

 good rubber. [National Heel Co., 127 Duane street. New York.] 



