. India rubber world. l pocket diary, hound in brownleather, w-ith divisions in the inside of the cover forming com-partments for postage stamps, bills, etc. The book is dividedinto two parts, one containing a number of pages devoted togeneral and useful information, calendar and space for dailymemoranda, addresses, etc., and the other half of blank pages,the space between being provided with a pocket which unusually attractive little pencil. The West India Committee Circular, Seething Lane,London, has forwarded a calendar 9x6 inches in size, with aview in colors entitled The S
. India rubber world. l pocket diary, hound in brownleather, w-ith divisions in the inside of the cover forming com-partments for postage stamps, bills, etc. The book is dividedinto two parts, one containing a number of pages devoted togeneral and useful information, calendar and space for dailymemoranda, addresses, etc., and the other half of blank pages,the space between being provided with a pocket which unusually attractive little pencil. The West India Committee Circular, Seething Lane,London, has forwarded a calendar 9x6 inches in size, with aview in colors entitled The Sunday Market in .Antigua. HOT AIR VULCANIZER. In the past it has been found difficult to vulcanize rubber bymeans of hot air on account of the uneven temperature whichusually prevails in different parts of the apparatus. The deviceillustrated in the accompanying drawing, however, is claimed tosolve this difficulty and to make vulcanization by means of hotair as efficient as by any other process. The large steel tank A. A New Type of is closed at one end and has a hinged door B at the other. In-side the tank is a steam coil C which is heated from a steamgenerator on the outside. -At each end of the tank is a small elec-tric motor D communicating with a fan E on the inside. Duringthe entire period of vulcanization the fans are kept in motion inorder to stir up the air and maintain an equal temperature in allparts of the tank. The vulcanizer may be made in any shape andsize to accommodate tires or smaller rubber articles, while theheating of the interior may be effected by means of coils of anyshape, placed spirally or lengthwise. If desired, a steam jacketmay be substituted in place of the coils. The fans may be oper-ated by any availaole source of power through a belt from a lineshaft, altho electric motors are preferable for this purpose. 262 THE INDIA RUBBER WORLD [February 1, 1914. New Rubber Goods in the Market. LEATHER BOOTS LINED WITH RUBBER. HIRR is
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Keywords: ., bo, bookcentury1800, bookdecade1890, bookidindiarubberworld49phil
