July i, 1902.] 



THE INDIA RUBBER WORLD 



327 



of the rolls, within easy reach of the operator, or in the place 

 of the chain and handle some other plan for operating latch and 

 handle, such as a bar placed across the tops of the roll frames. 

 With a slight pull on the chain, the latch releases the dog, which 

 in turn drops into the opening between the helical shoulders on 

 the clutch and the flange on the pinion, and, forcing them apart, 

 stops the rolls within two or three revolutions of the shaft. 

 As the speed of the shaft is so much greater than the rolls, the 

 latter come to an almost instantaneous stop. This form of 

 clutch can be readily applied to old as well as new mills and 

 adapted to any form of bedplate, and, as a rule, does not require 

 any more room on the shaft than the old style. 



The patent for " Automatic Stop for Heavy Machinery " was 

 issued to Frank H. Brewster, April 23, 1901, and assigned to 

 the Birmingham Iron Foundry (Derby, Connecticut). This 

 company, besides single orders for trial, have a contract to 

 equip one of the largest rubber factories in the United States, 

 having about fifty mills, and have also just completed a new 

 plant of about thirty mills, entirely fitted with this safety stop- 

 Another illustration appears in the advertisement of the firm 

 named, elsewhere in this paper. 



NEW PROCESS FOR MAKING SOLID RUBBER TIRES. 

 Albert T. Holt, superintendent of The Victor Rubber Co. 

 (Springfield, Ohio), has just been allowed a patent for a process 

 in the man- 

 ufacture of 

 solid rubber 

 tires, which 

 promises 

 exceedingly 

 well. De- 

 scribed i n 

 brief, a press 

 is m a d e , a 

 trifle longer 

 than the tire 

 would be 

 when laid 

 out straight. 

 This press 

 is provided 



with a series of mold cavities running parallel to each other, 

 the length of the lower platen. Each of these has the shape of 

 a complete tire, which would mean that the widest point lies 

 below the upper surface of the platen, forming a mold open at 

 the ends and having a relatively constricted mouth at the upper 

 surface. It will be seen that it would be difficult to withdraw 

 such tires after vulcanization from a mold shaped in this way. 

 The tires are covered with a sheet of canvas which is interposed 

 between the mold and the upper platen, and the whole vulcan- 

 ized together. After curing, the upper platen is raised and a 

 slight pull on the canvas compresses the wider portions of the 

 tires, allowing them to be withdrawn from the mold very easily. 

 The tires are then cut apart along the edge of the base of the 

 tires. 



RECENT RUBBER PATENTS. 



THE UNITED STATES PATENT RECORD. 

 Issued May 6, 1902. 



NO. 699,143. Horse collar. Edwin L. Brundage, East Orange, 

 New Jersey. 

 699,297. Heel cushion. Otto Eick, Baltimore, Maryland. 

 699,373. Soft tread horseshoe. Orion E. Dyson, Chicago. Illinois. 

 699i383- Insulating composition and method of producing same, 

 Adolf Gentzsch, Vienna, Austria. 



699,401. Exercising device. William F. Lott, East Orange, New 

 Jersey. 



699,549- Cushioning device for boots or shoes. Frank P. Macin- 



tyre, Philadelphia, Pennsylvania. 

 699,562. Rubber boot or shoe. Joseph L. Perry, Auburn, Rhode 



Island. 

 699,568. Heel for boots or shoes. John C. Rea, Paterson, New 



Jersey, assignor of one-half to Robert A. Roe, Paterson. 



699.622. Manufacture of playing balls. Eleazer Kempshall, Boston, 

 Massachusetts, assignor to the Kempshall Manufacturing Co., a 

 corporation of New Jersey. 



699.623. Manufacture of Golf Balls. Same, 



699,632. Manufacture of golf balls or other articles. Francis U. 

 Richards, Hartford, Connecticut, assignor to the Kempshall Manu- 

 facturing Co. 



Trade Marks. 



38,218. Rubber boots and shoes. Thomas Crowley, Lambertville, 

 New Jersey. 



Issued May 13, 1902. 



699,653- Dental vulcanizer. John S. Campbell, London, England. 

 699,656. Hose rack. Edward Cliff, Newark, New Jersey, assignor to 

 Cliff & Guibert Co., New York city. 



699,743- Eraser tip for pencils. Willard H. Brownell, Battlecreek, 

 Michigan. 



699>757- Child's teething nipple. William Howell, Brooklyn, New 

 York. 



699,768. Boot or shoe heel. Franklin G. Saylor, Franklin, Massa- 

 chusetts, assignor to Walter E. Austin, Boston. 



699,778. Water bag. Hubbard H. Upham, New York city. 



699,813. Playing ball. Francis H. Richards, Hartford, Conn., as- 

 signor to the Kempshall Manufacturing Co. 



699,876. Golf ball. Eleazer Kempshall, Boston, Massachusetts, as- 

 signor to the Kempshall Manufacturing Co. 



699,934. Eraser. Eric Swensson, Chicago, Illinois. 



700.123. Playing ball. Eleazer Kempshall, Boston, Massachusetts, 

 assignor to the Kempshall Manufacturing Co. 



700.124. Playing ball. Same. 



700.125. Spinning roll. Eleazer Kempshall, Boston, Massachusetts. 

 700,144. Golf ball. Eleazer Kempshall, Boston, assignor to the Kemp- 

 shall Manufacturing Co. 



700.154. Manufacture of golf balls. Francis H, Richards, Hartford, 

 Conn., assignor to the Kempshall Manufacturing Co. 



700.155. Manufacture of golf balls. Same. 



Issued May 20, 1902. 



700.655. Manufacture of golf balls. Eleazer Kempshall, Boston, as- 

 signor to the Kempshall Manufacturing Co. 



700.656. Shell blank for playing balls. Same. 



700.657. Manufacture of golf balls. Same. 



700.658. Playing ball. Same. 



700.659. Manufacture of playing balls. Same. 



700.660. Golf ball. Same. 



700,667. Horseshoe. Anthony M. Meisner, Chicago, Illinois. 

 Trade Marks. 



38,317. Vehicle tires. New York Belting and Packing Co., Limited, 

 New York city. 



Issued May 27, 1902. 



700.837. Solid rubber vehicle tire. Frank A. Seiberiing, Akron, Ohio. 



700.838. Atomizer. Cyrus J. Seltzer, Philadelphia, Pennsylvania, as- 

 signor to the Davidson Rubber Co., Boston. 



700,840. Pneumatic tire. Enos Smith, Vernham Dean, near Hunger- 

 ford, England, assignor to John Smith, Troy, New York, and 

 Henry Smith, New York city. 



700,871. Rubber tire setting machine. John K. Williams, Akron, 

 Ohio. 



700.942. Playing ball. Eleazer Kempshall, Boston, Massachusetts, 

 assignor to the Kempshall Manufacturing Co. 



700.943. Golf ball. Same. 



700.944. Playing ball. Same. 



700.945. Golf ball. Same, 



701,124. Vaginal syringe. Charles F. Allen, Hueneme, California. 

 701,254. Billiard table cushion. Moses Bensinger, Chicago, III., as- 

 signor to the Brunswick-Balke-Collender Co. 

 Trade Marks. 

 39i332. Rubber footwear. Foot, Schulze & Co., St. Paul, Minnesota. 



[Note.— Printed copies of specifications of United States patents may be or 

 dered from Ths India Rubber World offices aC tea cents each, postpaid.] 



