August 1, 1916.] 



THE INDIA RUBBER WORLD 



599 



New Machines and Appliances. 



THE M. & W. HEAVY DUTY REFINING MILL. 



THE mill embodies a number of improvements that are un- 

 questionably of great advantage in mills of this type. 

 The illustration here shown represents a 14 by 20 by 30- 

 incli, heavy duty double geared refining mill. It is of massive 

 construction, the weight being distributed to adequately resist the 

 heavy strains to which refiners are subjected. The housings are 

 of the end cap type, made of semi-steel iron and provided with 

 broad feet, which insure rigid attachment to the foundation 

 plates. The end caps are cast steel and the cap bolts are made 

 from chromium vanadium steel, making the completed housing 

 capable of withstanding the heaviest strains. 



The rolls are made of the best chilled iron, cored and fitted 

 with stuffing boxes, water and steam connections for controlling 

 the temperature of each roll. The roll bearing boxes are cast 

 steel and bushed with phosphor-bronze, a pocket being provided 

 to accommodate a quantity of grease, and sight feed oil cups 

 are also provided for stimulating the grease, thereby insuring 

 proper lubrication. The roll guides are cast iron with telescop- 

 ing tee irnns that tit the radius of the roll to the lowest possible 

 point. 



Another feature is the telescope gap guard fastened to tlie 

 boxes and frame, completely covering the openings at the inside 

 of the housings and preventing particles of rul)ber and other ma- 



terials from getting into the bearings and gearing, resulting in 

 considerable saving of materials as well as affording a protec- 

 tion to the lubrication. 



The roll adjusting screw has a coarse, heavy pitch and is 

 made of chromium vanadium steel. The bronze adjusting screw 

 nut interlocks with housing so that it can be removed or inserted 

 from the outside. The adjusting screw wrench is a special 

 double-acting ratchet wrench and has a number of advantages, 

 such as a time saver in adjusting the rolls (it being always in 

 position for use), as well as the convenience with which adjust- 

 ment can be made, as the operator can locate the lever to suit 

 his convenience. [Morgan & Wright. Detroit, Michigan.] 



DYKES' BELINEE MOLD AND VULCANIZER, 



A machine that dispenses with all cores and wrapping and 

 cementing operations necessary in the old method of making 

 reliners, patches and inner shoes, is illustrated herewith. It com- 

 bines in one machine both shaping and curing, the former by 

 hydraulic pressure and the latter by heat directly applied. 



The frame and bed are solidly built of I-beams to withstand 

 deflection common to hydraulic presses of this type. The lower 



platen carries the male reliner mold and l^ raided and lowered by 

 three hydraulic rams. The upper platen is rigid and carries the 

 female mold. 



To make a complete reliner, the material is placed longitudi- 

 nally on the lower mold and pressure applied to the rams which 

 raise the lower platen and force the molds together. Heat is then 

 admitted to the molds and in ten or twelve minutes the cure is 

 complete and the reliner is ready for the stock room. 



One man can operate two machines and easily turn out 200 

 reliners a day. By doubling up— that is, molding "two on" for 

 each heat— the capacity can be increased to 400 reliners ; depend- 

 ing on the length of cure. In making patches, material for 18 is 

 placed en the liiold of each machine. .Allowing one hour for 5 



heats, the result will be 50 heats a day and the product, 1,800 

 complete patches. The machines are made in five sizes for 3-inch 

 to 5-inch reliners and special size for patches, double hock shoes, 

 lace and clincher boots. [The Dykes Tire Shoe Machinery Co., 

 Chicago, Illinois.] 



THE WILLS RUBBER EDGING PLAITEH. 



Tliis machine was designed with the object of producing 

 plaited edgings from strips of rubber sheet. That it is practical 

 in construction and efiicient in operation is evidenced by the 

 accompanying illustration showing the machine in operation. 



It is compactly built and mounted on a substantial base that 

 may be fastened to any convenient bench or table. The strips 

 of rubber are delivered from the feed table to the horizontal 



plaitin.u head, on which the folds are made, and the plaits per- 

 manently cemented together. The machine is belt driven and 

 will finish 30 inches of plaiting per minute. [Arthur Jack.?on 

 Wills, North Brookfield, Massachusetts.] 



