Maw ii 1. 1915.] 



THE INDIA RUBBER WORLD 



333 



A NEW STRANDING MACHINE. 



OKI.MU i- an illustration of a stranding machine that has 

 *-* recently been placid on the market. It will be of in- 

 terest i" manufacturers of insulated wire, as il is capable of 

 much higher speed than machines ol this type previously built. 

 This machine makes the bare coppei strands, and also lays 

 up insulated wires or strands into cables. It has 7 reels, tak- 

 pools 7 to 9 inches in diameter and capable of running at 



800 r. p. m. The large machines take spools up to 32 inches 

 in diameter, while smaller ones are built for making fine wires. 

 running a- high as 1,300 r. p. m. Tun-head tandem machines 

 are built with 7 and 12-reel sections; also singli head machines 

 with as many as 19 reels in one section. 



These machines an' accurately balanced and equipped with 

 hall bearings, and the main bearing and driving gears are en- 

 closed in nil tight eases. [Xew England Butt Co.. Providence, 

 Rhode Island. 1 



OTHER DEVICES. 



A DAMSON COLLAPSIBLE COR KS : Adamson has patented 

 ^* a core with a locking ring that can be used on tin- other 

 side of the erne when the flanges become worn. The four hollow 

 segments, one of which is wedge-shaped, are aligned by inter- 

 locking keys and grooves. The locking ring is channeled to fit 

 the core flanges, and wedges the segments of the core into perfect 

 alignment, these being held by two conical pointed set screws. 

 On the inner surface of the locking ring there i- a \ -groove for 

 supporting the core on the chuck. [ \. Vdamson, United State-, 

 patent Xo. 1,124,381.] 



A later patent covers a core with lived locking keys and lock- 

 ing holts, operated bj conical pointed set screws. There are no 

 loose parts, all being located within or attached to the four 



[tnents of the core. The abutting ends of the segments are 

 i ed to receive a broad, flat key. which is attached to one 

 of the segments. In the opposite segment are recessed spring 

 holts with slots that engage the lower lips of the keys. Headless 

 set screws with conical points engage the conical recesses in the 

 holts. The segments are assembled and aligned by the keys. The 

 set screws being loosened, the spring bolts engage the keys. 

 The set screws are then tightened, drawing the segments to- 

 gether. Dowel pins are inserted through the flanges at the 

 joints, and the core is ready for the casing. [A, .Vdamson, 

 United Slates patent Xo. 1,125,431.1 



Wickham's Latex Coagulator: This invention distributes 

 and coagulates, by smoke, films of latex on the inner surface of 

 a circular revolving trough. The trough is attached to a spider 

 mounted on the end of the main shaft, which is journaled to the 

 frames and driven by a hand wheel or belt pulley. The outer 

 side is open and has two sliding partitions for isolating the smoke 

 from the lower part of the trough. It is entirely enclosed by a 

 casing with the exception of three openings — one through which 

 the latex is fed, another for the pipe which conveys the smoke 

 from the furnace to the upper part of the trough and a third for 

 removing the rubber. The drum is rotated and the latex is 



delivered from a receiving tank to the inner surface of the drum 

 !>>• a reciprocating trough. [*he films of latex, earned around 

 by the rotating cylinder, are hardened by the smoke. |l|. A. 

 Wickham, United States patent Xo. 1,126,327.] 



Hit i Making Machine. It makes multiple-ply belting fr 

 strip ot material which is marked, cut, folded and stamped by 

 the machine. The parallel side frames form a long wide table 

 with lower i'rn.> braces winch support the longitudinal driving 



shaft, Bolted to the top ,,f the side frames are upper parallel 

 frames which carry tin feed rollers, cutter and spool shafts, 

 folding, stamping and doubling devices. The belting strip from 

 the roll of material is passed over the table, which lias adjustabli 

 bars for guiding the edges. Stylographic devices mark the lines 

 along which the strip is to he slit and the material i finall rolled 

 up at the end of the machine. I he roll is thi red to the 



upper frame and the material passed betv thi feed roller and 



cutting discs that cut the filler strips, which are then wouni 



on spools. The wrapping strip and the idlers are passed bet 



teed roller-, and through a device which Folds the wrapping strip 

 over the fillers in longitudinal alignment with the center of the 

 belt. A printing cylinder stamps tin- identifying mark on the 

 belt before it passes between the final icc-<\ rollers out of the 

 machine to the finishing table. \ lull of half the width is made 

 by passing tile folded material through th< d ubling trough and 

 presser rollers mounted in front of the feed roller-. | V !1 

 Wright, United States patent Xo 1,123 : 



MORSE SILENT DRIVE CHAIN. 



""THE chain drive has a number of marked advantages. It lias 



■*■ the positiveness of drive which is the characteristic of 



gearing and at the same time the possibility of running at a 



high speed without the extremelj disagreeable noise that 



attends the year drive. It also has the advantage of gri 



flexibility. The silent chain consist-- of stamped links pivoted 

 toy, ther into a multiple chain. It runs with a smooth action 

 and is not affected by stretching, for when stretched the 

 chain merely rides higher on the sprockets. The accompany- 

 ing illustration shows an 85 horsepower Morse silent chain 

 driving a compressor from gas engine. 'Morse Chain ' 

 Ithaca, Xew York.] 



