122 KANSAS CI TV REVIEW OF SCIENCE. ■ 



gaging the rack. A stop panel is provided for securing the proper adjustment of 

 the tightening pulley. 



Process of Manufacturing Gas — A late improved process for generating 

 gas consists, first, in subjecting bituminous coal to the direct heat, by contact; 

 secondly, evolving, by means of a mass of incandescent fuel, the gaseous vapor 

 from the former, and at the same time decomposing steam by injecting it into the 

 incandescent mass of coke or fuel, and conducting the resulting hot products, 

 hydrogen and carbonic oxide, through the distilling mass of bituminous coal for 

 taking up the heavy tarry vapors therefrom ; thirdly, carbureting the mixed 

 gases and vapor thus formed, while hot, in a separate chamber; and finally, 

 combining the carbureted mixture into a fixed gas by bringing it into contact 

 with a mass of highly heated refractory material in a separate chamber. 



Cable Railroad — This improvement is designed to be used on a railroad 

 where the cars are propelled by a moving cable. It relates to a method of accel- 

 erating or increasing the speed of the car or train, which consists in so combining 

 one or more pairs of the wheels that support the car on the track with rolling 

 sheaves that grasp the cable, so that the friction of the wheels upon the track 

 shall serve as a driving agent to set in motion the rolling sheaves to increase the 

 speed of the car. 



Machinery for Reducing Ores — This improved apparatus combines a 

 series of concentrically arranged troughs or vessels for receiving the material to 

 be ground or crushed. They are provided with a series of traveling, grinding 

 or crushing rollers or wheels arranged in the troughs. An elevated mechanism 

 travels in one of the troughs and follows the rollers, by means of which the ma- 

 terial is carried upward from said trough. A screen or sieve moves with the 

 elevating mechanism and is arranged to receive the material therefrom. A chute 

 or conveyer is located beneath the screen, and arranged to discharge the material 

 from the inner into the outer adjacent trough. 



Novel Telephone — This invention provides, in combination with a dia- 

 phragm, of a sound augmenter box having an opening at which the mouth or ear 

 may be applied. It is provided with a number of resonant wires, under tension, 

 secured within the box between the opening and diaphragm. Each wire is 

 capable of independent adjustment, and a device is employed whereby all the 

 wires may be adjusted at once. 



Watchman's Time Detector — In this improvement a time-movement car- 

 ries a drum or carrier having a strip of paper or other material surrounding or 

 facing the same. The device is placed in a case, the body of which is provided 

 with a lock, and the lid of which is provided with a hasp. A perforating or 

 marking device for the paper, is arranged within the body of the case adjacent 

 to the lock, and is adapted to be operated by said hasp in opening or closing the 

 hd. 



