34 



THE INDIA RUBBER WORLD 



[October 1, 1920. 



the foregoing operations repeated. (James H. Wagenhorst, 

 Akron, Ohio. I'nitod Stato< patent No. l..\?8.4;0 ) 



MACHINERY PATENTS 

 MACHINE FOR FORMING TOY BALLOON BEADS 



Ar.\R.\i.i.EL SERIES of forms arc secured to the form boards 

 adapted to support the balloons. .A rectangular frame is se- 

 cured to the base of the machine, allowing the form boards to be 

 moved through the frame. Horizontal shafts arranged in pairs are 



! I^'i i ^_^^jl!i^ 



Bead-Roi.uxg M.vchime . ,.,. , 



bracketed and geared so that they turn in the opposite direction. 

 On each shaft A,, a rotary brush B, covered with chamois or 

 other flexible material, provides a yielding friction surface to rub 

 against the ends of the balloons. 



As the form board is slid in and out of the guide formed by 

 the base, the forms will bring the balloons into contact with the 

 covered brushes, and the rolls or beads will be quickly and uni- 

 formly made. (Harry B. Gill, Ashland, Ohio. United States 



patent Xo. 1,346.706.) 



A NOVEL SPREADING MACHINE 



This invention employs a roller for applying the rubber solu- 

 tion to the fabric instead of the usual spreading knife or "doctor." 



The dope is placed in the hopper A and a web of uncoated 

 fabric drawn from the roll B over the guide roller C beneath the 

 spreading cylinder D, over the guide roller E, thence over the 

 heating pipes and drum cylinder to the take-up roller G. Power 

 is then applied, rotating the cylinder so that its lower portion 



A Calender Spreader 



moves in the direction of the travel of the fabric. Tlie web of 

 fabric is driven by the cloth covered drum F, through gearing, 

 at the desired rate of speed relatively to the speed of the spread- 

 ing cylinder. 



The gate // is adjusted to deliver a sheet of dope of a pre- 

 determined thickness upon the surface of the roller which spreads 

 it upon the fabric, condenses the coating and smoothes it by its 

 wiping contact so that a desirable fniish is produced. 



The coated fabric thereupon passes over the drying coils with 

 the back or uncoated side of the fabric toward the coils so that 

 the heat is applied through the fabric and back of the coating. 

 (Andrew Thoma, Cambridge, assignor to Abraham Sydeman, 

 Boston — ^l)0th in Massachusetts, United States patent, Xo. 1,- 

 346.61S4 



Hood Rubber Co 



Louis, Mo 



-both of 



assiKiior to 



OTHER MACHINERY PATENTS 

 THE UNITED STATES 



Ni' 1,340,776.' Apparatus for ncIaimir.K rubber. F, L. Krydcr. Akron, 

 O., and E. W. Snyder. Indianapolis. Ind. 

 1.34S,228. Apparatus and method for electrically vulcanizing tires. 



). I-edwinka, assignor to Kihvani ti. Itudii Manufacturing 



Co. — both of Philadelphia. Pa. (Renewed January R. 19J0.) 

 Apparatus for cutting rings and washers from rubber tubing. 



I. E. Pcrranll. assign" r to He ' " ' ' ^ ' ' 



Water town. Mass. 

 Tire-building stand. K. Sterns. St, 



Surety Tire & Rubber Co., a Uelaware corfKjratioii. 

 Separal)Ic sectional ci>re for tires. (J. U. Willis, assignor to 



■ .., ■^-. The Miller Rubber Co.— both of Akron. O. 



1. 349 ,03?r"' Repair vulcanizer. A. A. Bitter. Los .Xn^eles, Calif., assignor 



by mesne assignments to Western Vulcanizer Manufacturing 

 ' ■ Co., Chicago, 111., a copartnership. 



Tire abrader. F. N. Corrlell. St. I-ouis, Mo. (See The India 



RrBBFR WoKLO. February 1. 1920, i)age 297.) 

 Apjiaratus and prcre?? for the manufacture of tires. J. 



Swinehart. Akrc;i. (). 

 Apparatus for the manufacture of pneumatic-tire casings. 



Hcpkinson, New ^'nrk City. 

 Apparatus and .pr,-cess for prrxlucing a hollow rubber bisciitt 



II Z. Cobb, New ^'ork City, assignor to The Mechanical 



Rubber Co., a New Jersey Cnrporation. 

 Tire and tuiie vulctnizer. (>. Nichols. McAind Valley. Kans. 

 Repair vulcanizing apparatus. \V. S. Rolnnett, Oakland, Calif. 

 Apparatus for use iti vulcanizing pneumatic-tire casings. E. 



Hopkinson, New- Vcrk City. 

 Apparatus for recovering rubber frctm armored hcse, etc. C. F. 



Erb, Voung'Stown, C 

 Wilcanizing mold for boots and shoes. D, F. Wilhelmi, iJoor- 



werth, Netherlands. 

 Mold for rubber heels. H. F. Maranville. assignor to the 



Firestone Tire & Rubber Co. — both of Akron, (). 

 Bead-forming ring for molding pneumatic tires. J. Schmidt. 



assignor by mesne a.s.^ignments to Howe Rubber Corporation 



— both of New Prunswick, N. J. 



1. 348. 316. 



1.348,596. 

 1,34«.612. 



1,349.366. 

 1.349.390. 

 !, 340,424. 

 '..349.560. 



1.349.688. 

 1.349.693. 

 1;349,721. 



1,349.752. 



1.349,796. 



1.350,105. 



1.350.117. 



A. 



E. 



"Omitted from our issue of July 1. 1920. 



202,260 Tire dressing wheel 

 Cai., U. S. A. 



THE DOMINION OF CANADA 



ISSUED JULY 27. 1920 



M. Taber and P. E. Taber, Berkeley, 



ISSUED AUGUST 17. 1920 



203,007 Repair vulcanizing api)aratus. W. H. Miles, Stafford. England. 

 203,099 Apparatus for placing tires in molds. The Dunlop Rubber Co., 



Ltd., Westminster. Co. of London, assignee of C. Macbeth 



and E, Sullivan, both of Birmingham, Co. of Warwick — all 



in England. 

 203.105 Pneumatic tire building machine. The Goodyear Tire & Rubber 



Co., assignee of J. D. Thompson, both of Akron, O., U. S. A. 



THE UNITED KINGDOM 



143,927 Tipping-apparatus inr kneading -machines, etc. Canstatter Misch- 

 und Kretmaschinen-Fabrik, Canstatter Dampf-Backofen- 

 Fabrik Werner Ci Pfleiderer, Pragstrasse, Canstatt. Stuttgart, 

 Germany. ( Not yet accepted. ) 



144,779 Repair vulcanizer. 11. Frost & Co., 148 Great Portland street, 

 London, and W. H. Welch, 182 Ashley Down road, 

 Bishopstcne, Bristol. 



144,822 Apparatus for making cord tires. Vickers. Ltd., Vickers House, 

 Broadway, Westminster, Sir J. McKechnie. Naval Construc- 

 tion works. B;.rrow-in-Furness, and A. Ryan, 43 Cranbrook 

 street. Oldham. 



1 44,041 Apparatus for making hollow rubber articles. Paramount Rub- 

 ber Consolidated, 5232 Germantown avenue, Philadelphia. Pa,, 

 assignee of I'. T. Roberts. 1051 Power avenue, Cleveland, 

 Ohio — both in t'. S. A. (Not yet accepted.) 



PROCESS PATENTS 



THE UNITED STATES 



N(>. 1,348,164. Putting beads on tire carcasses. W. G. Fording, assignor 

 to J. T. Lister— both of Cleveland. O. 

 1.348,755. Manufacture of clutch facings. S. Simpson, assignor to 

 The Raybestos Co.— both of Bridgeport, Conn. 

 1.349.423. Manufacture of pneumatic tires. E. Hopkinson, New York City. 



THE UNITED KINGDOM 



144,809 Making hollow rubber .-irticlcs such as valve balls. F. T. Roberts, 

 1105 Lakeview road, and R. H. Rosenfeld, 1895 East 71st 

 street — both in Cleveland, Ohio, U. S. A. 



DIATO 



Pure dialomaccou.s earth from an extensive fresh water de- 

 posit located in Oregon is being introduced lo the rubber manu- 

 facturing industry. Analysis and microscopic examination shows 

 Diato to be practically free from lime, entirely free from grit, 

 and contains only two types of diatoms. These are in the form 

 of hollow cylinders possessing relatively larger cavities than 

 is the case with the discoid forms which are so often the domi- 

 nating types in diatomaceous deposits. 



