June 1, 1917.] 



THE INDIA RUBBER WORLD 



523 



1-10 degrees F. in the tempering apparatus, which is not sufficient 

 to harden the albumen, and consequently this remains in the 

 cake. It is for this reason that the oil, containing no albumen, 

 is of vastly superior quality. In the case of linseed oil it will 

 not break, i. c, it remains perfectly clear at a temperature of 

 800 degrees F., which makes it much more valuable for paint and 

 varnish purposes than the old process oil. In the case of cotton- 

 seed oil and all other edible oils, it will make much sweeter oil, 

 which refines more readily, and with smaller loss. As to the 

 cake, the larger percentage of albumen makes it more valuable, 

 inasmuch as the albumen is more easily digested in its raw state 

 than when cooked. Cooked seed may be also pressed, obtaining 

 the same yield as by the hydraulic process, and at a considerably 

 lower cost. Less horse power is required for pressing cooked 

 seed, and a larger quantity of seed can be pressed hourly, but 

 while the products from the cooked seed are equal in quality to 

 the best results obtained from the most improved hydraulic 

 presses, they are not equal to the oil and cake obtained from the 

 cold or tempered seed, as described above. 



The plant working automatically effects almost a complete 

 saving of labor. The machinery once started, one man can run 

 a plant of at least six expellers, while by the hydraulic process 

 four men are required to obtain the same results. It also 

 eliminates the cost of expensive press cloths. [The \'. D. Ander- 

 son Co.. Cleveland, Ohio.] 



PFXTFER'S RESILIENT WHEEL WITH PNEUMATIC HUB. 



This is a resilient wheel that embodies the pneumatic principle 

 without the wear and tear, punctures and blow-outs common to 

 the average pneumatic tire. With slight variation in structure 

 it is adaptable to heavy trucks, pleasure cars, bicycles and motor- 

 cycles. 



Contrary to ordinary practice, the drive is transmitted directly 

 to the rim section, thereby relieving the pneumatic part of the 

 wheel from driving strains. The hub consists of two normally 

 concentric main parts, one being revolvably secured to the axle, 

 while the other is rigidly secured to the rim of the wheel. In- 

 terposed between these parts is a ring-shaped cushioning member, 

 A, preferably a pneumatic tire, with a conve.x-shaped outer cir- 

 cumference. This modified pneumatic tire is mounted upon a 

 cylindrical steel sleeve, B, which is secured to the axle, revolving 

 around it in the usual way on ball or roller bearings, according 



to the weight of the vehicle. The tire is held between two cir- 

 cular steel -disks, C, which are secured to the sleeve, B, and sup- 

 port the tire on two sides, leaving the convex-shaped outer cir- 

 cumference free. 



The principal feature of the invention comprises a ring- 

 shaped steel casing, D, convex in cross-section, that encir- 

 cles the tire and comes in contact with it, providing a nar- 

 row steel track upon which the tire rolls when revolving. under 



pressure. Thus the cushioning quality of the ordinary pneumatic 

 tire is retained and punctures and blow-outs are eliminated. 



Two circular-shaped steel plates, E, with an open center to 

 allow play in a radial direction, are secured to the sides of the 

 casing. Between the inner disks, C, and these outer disks, E, 

 are anti-friction ball bearings, F, that take up the lateral forces 

 while allowing radial play of the two concentric parts of the hub ■ 

 without friction between them. The wheel travels on a solid 

 or block tire and is driven by chain drive, the sprocket wheel, G, 

 being secured to the outer disk, E. 



The illustrations show three variations of construction, the 

 one on the left being the smallest type and the one on the right 

 giving the greatest cushioning effect, while a circular-shaped tire 

 occupying a place between these extremes is outlined in the same 

 illustration. An additional factor of safety is provided by two 

 ring-shaped cushions, H, of solid rubber that receive the weight 

 on the wheel should the tire become deflated. [Paul de Pfyffer, 

 302 West Twenty-second street. New York City.] 



CARLL STEEL TIRE RACKS. 



When pneumatic tires have been finished, inspected and paper 

 wrapped, they are sent to the storeroom, where they are segre- 

 gated according to size and type. The racks on which they are 

 placed are often built of wood and according to the individual 

 ideas of the executive or superintendent. It is claimed that 



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wooden racks absorb moisture and dry out the tires to the det- 

 riment of the aging qualities of the stock in storage. However 

 serious this may be, the substitution of all-metal tire racks for 

 storage purposes has many advantages. For example, the system 

 here shown permits the use of standard three-tier units, S feet 

 long and 10 feet high, with a capacity of 40 4-inch tires. The 

 angle iron supporting the tires is adjustable to accommodate 

 tires of large and small diameter in such a manner that they 

 rest on the flat surface of the angle irons. The construction 

 is obviously strong, light and fireproof, while economy of factory 

 space and the easy addition of units for storage extension are 

 interesting features. 



The first cost is said to be about equal to that of wood con- 

 struction; moreover, the metal racks may be easily taken down 

 and reassembled if so desired. A low insurance rate and mini- 

 mum depreciation in value are the final advantages claimed by 

 the manufacturers. [Chas. W. Carll's Sons, Trenton, New 

 Jersey.] 



MACHINERY PATENTS. 



MOLDING ELECTRICIANS' GLOVES. 



THE entrapping of air and the formation of bubbles are dif- 

 ficulties that are incidental to making electricians' rubber 

 gloves by the dipping process. 



