May i, 1904.] 



THE INDIA RUBBER WORLD 



275 



be beautifully handled if the bad accounts did not reach to at 

 least $iooo, or 1 per cent, of the total. 



The writer acknowledges that he has no figures for " returned 

 goods", " bad goods", or " experimental work", which are even 

 larger items than he appears to realize. In experimental work 

 alone in a business of this volume this item would very easily 

 reach $5000 a year. 



RUBBER FACTORY APPLIANCES. 



A NEW SPREADER AND DOUBLER. 



THE spreader and doubler shown in the accompanying cut 

 is simple, inexpensive, and does the work excellently. 

 Its method of operation is as follows : The cloth to be spread is 

 put on the small rolls at either end of the machine. That 

 coming from the roll at the front end passes up and under the 

 spreading knife, where the solutioned rubber is applied, after 

 which it meets the cloth from the roll at the back of the mach- 

 ine. The two fabrics with the rubber between them then pass 

 through the compression rollers, where they are firmly united. 



From this point the cloth passes over the large drum at the 

 back of the machine to the wind up roll directly under the 

 compression rolls. The " wind up " is driven by a chain and 

 sprocket, and is fitted with a friction, as are the two cloth carry- 

 ing rolls, to allow of an adjustment of the tension. The thickness 

 of the coating can easily be gaged by adjusting the knife by 

 means of side screws. The weight of the machine complete is 

 1950 pounds. [The New England Butt Co., Providence, Rhode 

 Island.] 



A TEN ROLL CALENDER. 



Mr Arthur N. Hood, of the Hood Rubber Co. (Boston), is 

 the inventor of a new system of working rubber that appears to 

 be perfectly practical and very simple. Compounded rubber 

 has long been sheeted by a building up process— that is, by run- 

 ning a thin sheet and then calendering one or more sheets 

 upon it. This ensures a denser sheet and allows the manufac- 

 turer to use for example one type of stock as a base, another as 



ness is attained. Mr. Hood's device, however, has a multiplic- 

 ity of rolls and does the whole business at once, besides emboss- 

 ing the upper surface. To accomplish this result he has what 

 are practically two small five roll calenders with the rolls so 

 arranged that any part is easily accessible. Of the ten rolls 

 shown, that marked d is engraved, while all the rest are plain. 

 If, therefore, a cheap basic stock is sheeted on the right hand 

 calender, and meets a better grade, covering stock, coming 

 from the left hand machine, the two would be united by the 

 roll e and embossed by the roll d. The machine is so built that 

 the rolls are interchangeable and if desirable it can be reversed, 

 rendering it extremely convenient for manipulation. It is cov- 

 ered by United States patent No. 752,975 — February 23, 1904. 



COVERING FLEXIBLE CONDUITS WITH RUBBER. 

 This is the invention of a practical rubber man and consists 

 of an apparatus for coating, drying, and cleaning flexible con- 

 duits. The conduit in the application of this principle is passed 

 first through a coating pan, partially filled with rubber cement, 

 on one side of which is a spreading device. From here it goes 

 to the drying device, which consists of a table and steam coil 

 encased in perforated sheet metal, the conduit being supported 



and carried by an endless belt. After drying it goes through 

 the cleaning apparatus, which consists of a vessel set on stand- 

 ards, provided with guide rollers, and a pair of brush rollers. 

 As will be seen, the machine is very simple and the work can be 

 done quickly and effectively. The spreading device is so made 

 that a variety of thicknesses can be applied to the surface of 

 the conduit. The inventor is John T. Dickey, of Barberton, 

 Ohio, to whom has been granted United States patent No. 701, 

 472. 



A NEW VILLAGE HOSE CART. 



TH E illustration below relates to a new line of wood wheeled 

 hose carts for village use. The frame, reel, and tongue 

 are formed of tubukr steel, making a strong and durable cart 

 of medium weight, and one that will stand rough usage. They 



a filler, and a third for a cover. These sheets as a rule are put 

 through the same rolls again and again, until the desired thick- 



are equipped with fireman's axe and rack, crowbar and holder, 

 automatic brake on reel, tool box, friction roller, pipe holders, 

 tongue rest, and rope reel and drag rope; polished brass hub 

 caps, and handsomely painted and striped. Roller bearings and 

 also arch and bell, if desired. The capacity of the type of cart 

 here pictured is 400 or 500 feet of 2% inch rubber hose, accord- 

 ing to size ; height of wheels \\i to 5 feet ; weight, 350 and 450 

 pounds. Rubber tires, if desired. [Wirt & Knox Manufactur- 

 ing Co., No. 22 North Fourth street, Philadelphia.] 



