Jriv 1. 



THE INDIA RUBBER WORLD 



The enlire beam and counterpwise mechanism is encased in a 

 <liist-proof aluminum housing having three doors; the upper duor 

 covering the beams being equipped with a Yale lock, the right- 

 hand door covering the counterpoise being so arranged that it 

 cannot be opened except when the upper door is open, and the 

 left-hand door opening into a compartment which may be used 

 for the storage of weights. The scale is built upon the four-point 

 principle of lever construction, is without check or stabilizing 

 mechanism of any description, has agate bearings throughout, and 

 is exceptionally sensitive and accurate. (Detroit .■Xutomatir Scale 

 Co.. Detroit, Michigan.) 



MACHINERY PATENTS. 



VARIABLE SPEED DRIVE FOR RUBBER MILLS. 



"T^His i.WENTioN relates to an improved method of driving the 

 *■ rolls of rubber mills, consisting, essentially, in driving the 

 front rolls of a single mill or the front rolls of a series of mills, 

 and the back roll of a single mill or the back rolls of a series of 

 mills by two variable speed electric motors so that the speed ratio 

 between the front and back rolls can be varied to any desired 

 amount. ( Frederick Iddoii, Leyland, England. United States 

 patent No. 1,342,114.) 



STRIPPING DIPPED GOODS FROM CURING FORMS. 



The illustration shows a perspective and plan view of the ap- 

 paratus which is briefly described as follows : 



Bracket .-f'is attached to the edge of a bench or other suitable 

 support arranged with a 

 slot to receive the flanged 

 end B of the form C car- 

 rying the object D to be 

 removed by air inflation 

 through the compressed 

 air outlet E. 



The mode of operation 

 is clearly shown in the 

 lower illustration, where 

 a pocket is formed by 

 pressure of the operator's 

 thumb and forefinger for 

 the entrance of com- 

 pressed air between the 

 form and the rubber ob- 

 ject, which is thus de- 

 tached by slight inflation 

 and easily stripped from 

 t h e form. (William 

 Gregg Lerch, assignor to 

 The Miller Rubber Co., 

 both of .^kron. Ohio. 



TOV I:!A,.t.OON STRtPPING M..CHIN-E. ^'3"ij'5y)'^'" ''"•'"' ^°- 



IMPROVED AIR BAG. 



To avoid permanently stretching the air-bag through repeated 

 use. a plurality of removable layers of fabric and rubber, prefer- 

 ably in the form of a series of sets of overlying or superimposed 

 patches, are applied to the outer surface of the bag so as to ap- 

 proximately cover it. These patches are applied with cement 

 after a preliminary dusting with soapstone so that while they 

 will adhere sufficiently to enable the bag to be handled in the 

 •ordinary manner they are individually removable. 



After the first tire is cured thereon an outer patch (or patches) 

 is removed, thus decreasing the dimensions of the bag by a small 

 amount, but sufficient to compensate for the permanent stretch 

 of the bag. This process is repeated until all the layers or patches 

 are removed, at the »nd of which time the hag has reached the 



it of its stretch. (Frank Fenton, assignor to The Miller Rub- 

 Co., both of .\kron, Ohio. United States patent No. 1,335,- 



101.) 



APPLYING REPAIR-TIRES TO WORN CASINGS. 



Worn casings are repaired according to this invention by apply- 

 ing cement to one or both parts, allowing it to become tacky, 

 applying the tread portion of the repair tire to the tread of the 

 casing while in normal form, deforming the sides of the casing 

 to increase their superficial area, and then rolling down the sides 

 of the repair-tire while the casing is in its deformed condition. 

 ( Charles C. Gates, assignor to the Gates Rubber Co., both of 

 Dnuer, Colorado. United States patent Xo. 1,341,121.) 



OTHER MACHINERY PATENTS. 



THE UNITED STATES. 



NO. 1,339.451. Cent.Tini! riiiR for tire beads. W. F. GofF. Akron. O.. 

 assignor to The B F. Goodrich Co.. New York City. 

 1,339,815. Machine for sawing tire cores. J. C. Fiddyment, Akron, O. 

 1,339.816. Machine for finishing tire molds. J. C. Fiddyment, Akron. O. 

 1.340,440. Apparatus for treating tires during vulcanization. F. G. Flegal, 

 assignor to The Savage Tire Co.— both of San Diego. Calif. 

 1340 641 Repair vulcanizer. II. K. Wheelock. Los .Angeles, Calif., as- 

 signor to Western Vulcanizer Manufacturing Co., a partner- 

 ship, Chicago. III. 

 1.340.642. Repair vulcanizer. H K. Wheelock, Los Angeles, Calif., as- 

 signor to Western Vulcanizer Manufacturing Co., a partner- 

 ship, Chicago, Til. (Original application divided.) 

 Apparatus for making articles from sheet rubber, such as bath- 

 ing caps, etc. R. A. Freeman, Flushing, N. Y. 



1,340,882. 

 1.340,883. 



Freeman 

 Flushii 



.340,884. 



.341.422. 



.341.500. 

 ,341.726. 



Apparatus and method for binding edges of rubber bathing caps, 

 nor to I. B. Kleinert 

 .ibber Co., New York City— both in New York. 



Machine for making sheet-rubber articles, such as bathing caps, 

 etc. R. A. Freeman, Flushing. N. Y. 



Guard for rubber mills and similar machines. L. Gaisman, as- 

 signor of '2 to S. Dreyfus — both of Manchester, England. 



Tire-bnilding stand. C. L. Durham, Salina, Kans. 



Tire-changing machine. I. A. Weaver and .T. Sternaman, Jr., 

 assignors to Weaver Manufacturing Co. — all of Springfield, 

 III.' 



Tire changer. I. A. Weaver, assignor to Weaver Manufactur- 

 ing Co.— both of Springfield, 111. 



Tir»-chanaiiit' api)liancc. I. A. Weaver and J. Sternaman, as- 

 -u'TH... I., W nr Manufacturing Co.— all of Springfield, 111. 



/^i 



THE DOMINION OF CANADA. 



Rubber mixer. F. Iddon. Leyland. Lancaster. England. 



Mold for making inner tubes for pneumatic tires. The Dunic 



Rubber Co.. 

 signee of Colin Macbeth, 

 both in England. 

 200.067. Machine for calendering vulcan 



s. The Dunlop Ruliher 

 Df London, assignee of 

 Colin Macbeth and Harry Willshaw, both of Birmingham, 

 County of Warwick— both in England. 

 200,169. Tire mold. H. Raflovich, Buffalo, N. Y.. U. S. A. 

 200,349. Mold for vulcanizing pneumatic tires. W. Seward, Baltimore, 

 Md., U. S, A. 



140,024. 

 140,317. 



502,650. 



Wash- 

 ington, D. C, U. S. A. 

 Tool for abrading rubber surfaces preparatory to patching. 

 F. N. Cordell, 709 Pine street, St. Louis, Mo., U. S. A. 



making solid tires, washers, etc. F. Offen- 

 )wn. N. Y., U. S. A. 

 re of cushion tires. A. T. Ostberg and .\. Kenny, 

 ■1, Richmond, \"ictoria. Australia. 



THE FRENCH REPUBLIC. 



for 



ructmg pne 



^■^''rk City, U. S. 



502.848. Improvements in apparatus for 



.S. II. Goldberg, Chicago, 111., 



502.849. Improvements in apparatus for 



Goldberg, Chicago, III.. V. S: 



regenerating treads and tires. 



U. S. A. 



rebuilding tire treads. S. H. 



N 



PROCESS PATENTS. 



THE UNITED STATES. 



O 1.339,696. Producing tire-patch material. C. O. Duffv. Dallas. Tex. 



1,339.789. Subjecting molded rubber articles to sufficient heat to 



remove surplus rubber from edges. R. Rothwell, Kevport. 



and W. H Cuttrell, Matawan, N. .T.. assignors to Whttall 



Tatum Co., New York City. 



