June i, 1906.] 



THE INDIA RUBBER WORLD 



297 



PLANTING "CEARA." 



EIGHT SPOOL WIRE STRANDER. 



AN EIGHT SPOOL WIRE STRANDER. 



THE necessity for a thoroughly reliable eight wire strand- 

 ing machine for cable building that is stronglj- and 

 compactly built, has been met. This new machine is the 

 result of many years of experience and experimenting by 

 men who knew what they were after and how to get it. It 

 is built in two bays, with four spools to the baj-. By an in- 

 genious arrangement the cradles are connected at the rear to 

 an electric ring which gives back motion to the spools, at 

 the same time preventing the wires from getting twisted. 

 The cradles are made of high grade steel castings and fitted 

 into bushed bearings formed in the spiders. Three spiders 

 run on rollers, while the center spider is also provided with 

 an upper roll, a contrivance that is valuable in giving rigid- 

 ity to the machine when running at high speed and out of 

 balance. The machine has cut gears throughout. The 

 capstan wheel has a diameter of 48 inches, with an eight 

 face. The machine is furnished for belt or motor drive and 

 can be run right or left at will, at high speed. It is espe- 

 cially recommended where a large output of high grade 

 strand is desired. [Aiton Machine Co., New York citj- and 

 Harrison, N. J.] 



ADAMSON'S BAND CUTTING MACHINE. 



'^T^IIl-; machine illustrated herewith is adjustable for any 

 -^ kind of work, from the shortest to the longest rubber 

 bands. The cutting is done by means of a band knife and 

 three other knives on a cylinder. The cylinder is revolved 

 at a high speed by means of a pulley belted direct to the 

 countershaft. The mechanism is simple, being operated by 

 means of gears, and all standard widths and lengths of bands 

 can be cut on this machine. The cylinder makes up to 300 

 revolutions per minute, and, having three knives, the work 

 of the machine for any width or length of band is about 900 

 per minute. The machine weighs approximately 600 pounds. 

 It is in use by a number of manufacturers of rubber bands 

 and has given general satisfaction. [A. Adamson, Akron, 

 Ohio.] 



TXTlTHOUT indicating its au- 

 ^ ^ thoritj', T/ie South Amer- 

 ican Journal (London, April 21) 

 makes the following statement re- 

 garding the cultivation of Manihot 

 Glaziovii : "The cultivation of 

 India-rubber plants in the state of 

 Sao Paulo is reported to have un- 

 dergone a complete change, as a 

 result of the arrival in the country 

 of a Portuguese from Ceara, a year 

 ago. About eight years ago the 

 growing of manifoba plants for 

 the collection of rubber was in- 

 augurated, but the results were 

 not financially successful, and 

 thousands of 5 and 6 year old 

 manifoba trees were cut down. 

 Tlie advent of the Portuguese led, 

 however, to the discovery that the 

 trees had not been tapped at the proper time, but that if 

 drawn at the appropriate period the yield of juice from a 

 6 year old tree produces 50 per cent, of pure rubber. As a 

 consequence, the cultivation of the manijoba plant has 

 been resumed, and it is estimated that 5000 acres of land 

 are now planted in this manner, and that the production 

 of rubber will increase every year, owing to the great an- 

 nual j-ield from each tree and the more skillful method of 

 collection. " 



'^^^ 



ADAMSON'S BAND CUTTING MACHINE. 



