November 1, 1911.] 



THE INDIA RUBBER WORLD 



85 



A WIRE BEEL THAT UEASVEES. 

 This device really ought to save time and trouble, as 

 it measures the various sizes of wire, cable and cordage as they 

 are rolled up. In the meter the wire passes between two self- 



WiRE Reel and Meter. 



adjusting rollers, which admit of considerable range and measure 

 large or small sizes with equal accuracy. The reel is provided 

 with removable crossbars and the drum with grooves, so that the 

 coil can be bound with tight wires and removed in compact 

 form. The device occupies but small space, and when not in use 

 can be set to one side. [Minneapolis Electric & Construction 

 Company, Minneapolis, Minnesota.] 



A TEN THOUSAND-MILE TIEE. 



"Ten thousand miles or your money back" is the reassuring 

 guarantee given by the D & S Airless Tire Company. This is 

 one of the latest productions of the tire inventors, who are trying 

 to get the resiliency of a pneumatic tire without the disadvan- 

 tages of an inner tube. The cut shows the airless tire. The 

 tread or arch is supported by the two side walls or trusses 

 (marked A). From these two side walls two arms (marked B) 

 project inward and meet when the tire is in a normal position. 

 A crosspiece of very strong rubber connects these two arms. 

 When the tire is subjected to great weight these tend to sepa- 



The D & S Airless Tire. 



rate, but are held together by the connecting crossband. If the 

 pressure on the tread becomes particularly heavy these two 

 inner arms will be pushed apart until they touch the side walls, 

 which is as far as they can go. The tests which have been given 

 this tire in Philadelphia seem, according to the daily papers of 

 that city, to have been very successful. [D & S Airless Tire 

 Company, Philadelphia, Pennsylvania.] 



A HOT WATEH BOTTLE THAT STAYS HOT. 



The trouble with a hot water bottle is that it does not stay 

 hot, at least indefinitely. Here is a device to cure that defect. 



It is a hot water bottle, in 

 the bottom of which is a 

 built-in chamber into which 

 an electric bulb can be fit- 

 ted. The socket of the bulb 

 comes even with the bottom 

 of the bottle, and at that 

 point there are clamping 

 arms that eiicircle the sock- 

 et and hold it in place. If 

 the current is turned on the 

 water, of course, continues 

 hot. The bottle can be 

 filled with cold water and heated by the bulb where that is more 

 convenient. [Patented by Dumont P. Lamb, Portland, Oregon.] 



Showing Electric Bulb 

 IN Bottle. 



THE BUCKLEY HYDRAULIC EXPANDER. 



A TOOL which has created much interest among manufac- 

 ^^ turers of fire, suction, chemical and other hose, and 

 among fire departments in general, is the Buckley hydraulic 

 hose coupling expander and hose-testing machine. This ex- 



Front View of Buckley Hy- 

 draulic Expander. 



Top View of Buckley Hy- 

 draulic Expander Showing 

 Hand Pump. 



pander is used for attaching the couplings to all kinds of hose, 

 and not only is the work done quickly, but it is said that there 

 is no chance of the couplings being put on too tight or not 

 tight enough, which would cause "blow-offs" at fires, thus seri- 

 ously crippling the work of extinguishing at critical moments. 

 The exact pressure required to properly attach each size of 

 coupling is plainly stamped on the machine and, if properly 

 used, there is no chance for error. Any size of coupling from 

 the smallest chemical hose coupling to the largest size of suc- 

 tion hose coupling can be handled by this machine. It works 

 by hydraulic pressure in connection with a small hand pump 

 and a few strokes of the handle on the pump by the operator is 

 sufficient to produce the required pressure for any size of 

 coupling, or an electric motor or a belt-drive attachment can 

 be substituted for the hand-pump feature, thus requiring posi- 

 tively no labor at all. [Larkin Manufacturing Co., Dayton, 

 Ohio.] 



A BOOK for everybody interested in tires— "Rubber Tires and 

 All About Them"— this office. 



