602 



THE INDIA RUBBER WC ,LD 



form the bead. During the winding operation the hand-operated 

 pressure roller / is introduced into the groove of the bead mold, 

 firmly compacting the threads. The finished bead is released 

 from the mold by detachinn the outer ring. (C. Kuentzel, as- 

 sigtior'to The Republic Kuhl.er Co. — both of Youngstown, Ohio, 

 Tiiited States patent Xo. 1.1^7.339.) 



COLE S COLLAPSIBLE COEL 



Ihe rapidity wilh which tire casings are made depends to a 

 J! eat c.vtent on the core, with relation to easy manipulation, 

 iiid facility in rcmnval from the vulcanized casing. 



The drawing on the 

 left is a front elevation, 

 and on the right is an 

 enlarged cross section, 

 of a new collapsible 

 core. The four core 

 segments indicated by 

 A arc provided with the 

 usual web B, terminat- 

 uig on the inner cir- 

 cumference with a pro- 

 jection C, that fits the 

 groove in the outer an- 

 nular clamping ring D. 

 When the core segments are assembled on the ring, they are 

 held in alignment by the four plates /;'. that arc clamped by 

 eight bolts /•". 



When the casing is removed from the mold, after curing, 

 the bolts are sirnply loosened and the plates withdrawn in- 

 wardly, which permits the removal of the core segments from 

 the interior of the shaft in the usual manner. [J. C. Cole, as- 

 signor to -Fisk . Rubber Co. — both of Chicopee Falls. Massa- 

 chu.setts. Ignited States patent No. 1,189,192.] 



A FRENCH PRESS VULCANIZEK FOK TIRE CASINGS. 



Ibis press is characterized by the arrangement of its con- 

 trolling p;,rts and the method of extension and retraction of the 

 divided core. 



The illustration shows on the 

 ^- right a perspective view of the 



press and on the left a vertical 

 section. 



The upper mold A is carried 

 by a heating table B, which is at- 

 tached to the platen C that is 

 operated by the hydraulic ram D. 

 The lower half of the ' mold E 

 rests on a heating table F, sup- 

 ported by the stationary bed-plate 

 C. The core H, divided in seg- 

 ments, is supported by a plate / 

 that is fixed to the ram /. This 

 is hollow and acts as a cylinder 

 for piston rod K, which is pro- 

 vided, at its upper end, with con- 

 necting links that control the ex- 

 tension and the retraction of the 

 core segments. 



The operation of the apparatus 

 is as follows : To bring the upper 

 platen C into the position it oc- 

 cupies in the illustration, pressure 

 is introduced under the ram D. 

 To release the core H from the lower part of the mold, pressure 

 is introduced under ram /. Finally, to bring about the retraction 

 of the core segments, the piston rod/ is raised and the segments 

 converge towards the center. 



When the press is in this position, the casing 



placed on the 



core and the segments extended. It is then lowered in contact 

 with mold E and pressure applied by the upper part of the mold 

 ./. Thus the casing is molded and vulcanized. It is then re- 

 moved and the operation repeated. | A. Wolber. I'reiuli patent 

 No. 477.474 (June 17. 1914 ),| 



MACHINES FOR RELL:N3 BIAS FABRIC STRIPS FOR TIxiES. 



The old method of placing bias fabric strips used for tire 

 lu'ilding between the muslin leaves of a "book" is apparently 

 oi.viatcd by th'' "-w invention. Referring to the illustration, ./ 

 is an elevation of the delivery end 

 f a bias shear, and B indicates the 

 .elivery belts. C is the side eleva- 

 on of one of six reeling machines 

 hat are placed alongside the shear, 

 .vith sufficient space between them 

 for the SIX op..„.wrs. .is the cut strips are ad\anced by the 

 traveling delivery belts of the shear, they are removed by the 

 operators to the reeling tables, where the ends are spliced to- 

 gether and the continuous strip D is wound up on tlie reel E by 

 the hand wheel F. At the same time the liner strip (/ is wound 

 between the -strips of fabric. 



Besides the saving of labor a^id the avoidance of the trouble- 

 some "books,'' it is claimed tltat a better splice is obtained by 

 »his method, due to the superior adhesiveness of the rubber 

 fresh from the caleiuler. [De Courcy Neal, Detroit, Michigan, 

 assignor to Morgan & Wright, Detroit, Michigan, United States 

 patent Xo. 1.189,724.] 



Tire Builwng Machjne. This automatic machine stretches 

 and applies the fabric to the core smoothly, imparting an ec- 

 centric movement to the smoothing rollers that are mounted on 

 a vertically swinging arm. [A. Mathern, Zollikou near Zurich, 

 Switzerland. United States patent No. 1,186,591.] 



TfBfL.AR Tire Fabric Loom. A tubular endless fabric, com- 

 posed of single or multiple interwoven plies, is woven on this 

 loom without stretching, pulling, packing or otherwise distort- 

 mg the weave. [F. S. Dickinson, New York City. United States 

 patent No. 1,188,418.] 



CoRu OR Strip Wr.m'I'ing M.vchine. The core is rotated and 

 the spools of material, mounted on the ends of two arms that 

 revolve in opposite directions, apply the strip or cord circum- 

 ferentially, beginning at the sides and continuing toward the 

 middle of the core, where the two series of convolutions meet. 

 [.T. H. Coesir, Joplin, Missouri. United States patent No. 

 1,1?9,666.] 



Tire Fl.xt Trimming Machine.— The ragged excess material 

 known as "flash" is trimmed from the tire flaps by two endless 

 band cutters that operate in a manner similar to double band 

 saws, severing the "flash" from the flap as it passes through the 

 machine. [Thomas Midgley, Worthington, Ohio. Assignor to 

 Morgan & Wright, Detroit, Michigan. United States patent No. 

 1,190,315.] 



THE UNITED KINGDOM. 



Inner Tube M.vndrel. This is tapered and made of a series 

 of transverse cardboard or papier-mache disks, surrounded by 

 and supporting a tapering tube of similar material. When the 

 tube has been spliced, the mandrel is dissolved, or reduced to 

 pulp, by water or steam. [F. H. Hall, 6 Livery street, Birming- 

 ham, England. British patent No. 16,890 (1915).] 



Wire Core for Solid Tires. A straight or wavy wire is inserted 

 within the coils of the wire core before the rubber is forced or 

 molded around the core. [Thomas Gare, Wembly, Middlesex, 

 England. British patent No. 8,228 (1915).] 



Air-fiu,ed Studs for Solid Tires. The hollow rubber studs 

 are stififened at the base by notched metal rings that are incor- 

 porated in the tire and vulcanized with it. [E. B. Killen and 

 the Commercial Tire Co. British patent No. 11,070 (1915).] 



