392 



THE INDIA RUBBER WORLD 



[April 1, 1917. 



a hand wheel they are made to bear down on tlic bale to any 

 degree of pressure required, insuring an even rotation and tight 

 wrapping. The overlapping is evenly done, the width of the 

 overlap can be easily regulated, and changing from the wrapped 

 bale to the ne.Nt one to be wrapped is instantaneous. 



The macliinc occupies a space 6 feet by 6 feet, by 7 feet high, 

 and require.'! 2^4 horse power to drive it. Motor drive is fur- 

 nished if desired. [Terkelsen & Wennberg, Boston, Massa- 

 chusetts.] 



THE WILLS CARTON ERECTING AND FILLING MACHINE. 



An extremely light-running, accurate, and rapid machine for 

 cartoning good.s in what are called tucked cartons such as are 

 used for boxing rubber heels, fruit jar rings, etc., is tlie subject 

 of the following illustrated description. 



The equipment consists of two units, a carton erecting ma- 

 chine, and a carton filling machine, coupled together and syn- 

 chronised ; all being operated by a 54 horse-power motor. It will 

 handle articles in multiples as well as units. For instance, it 

 can be built to count fruit jar rings into dozens, or will put two 

 heels and a package of nails into each box. 



The cartons are placed in a stack, flat or collapsed as they 

 come from the maker, and the articles to be packed are placed 

 on a carrier belt. The machinery erects the carton, closes the 

 bottom, inserts the contents, closes the top, counts the carton, 

 and sends it off on another carrier belt, a complete, symmetrical 



five. The efficiency of the rectifier increases and recharging costs 

 per battery are lowered as the number of batteries on charge is 



package. The speed of this machine depends somewhat on the 

 article packed, but usually runs about 40 packages per minute. 

 The entire equipment with electric motor and counting de- 

 vice, complete and ready for use, is made to order in accord- 

 ance with the special requirements of each case. [Arthur J. 

 Wills. Xorth Brookfield, Massachusetts.] 



TUNGAR RECTIFIER FOR GARAGES AND SERVICE STATIONS. 



To meet the demand for a device that will transform the 

 llS-voIt, 60-cycle alternating current supplied to many garages 

 and service stations into direct current suitable for recharging 

 automobile storage batteries, the General Electric Co., of 

 Schenectady., New York, has developed a type of "Tun.gar" 

 Rectifier of 6 amperes, 75-volts capacity that will charge from 

 one to three storage batteries at a time. 



A compensator with 15 taps is attached and a dial switch 

 for adjusting the voltage according to the number, of batteries 

 to be charged. The current is instantly adjustable in stei'S 

 up to six amperes. 



After the two upper ' wires are connected to the alternating 

 current supply and the direct current leads coming out of 

 the bottom of the rectifier are connected to the batteries, which 

 should be connected in series, turning the alternating current 

 switch will start the rectifier charging and without shaking. If 

 the alternating current should fail, the batteries cannot dis- 

 charge through the rectifier and will start recharging when me 

 current comes on again. Charging costs about 9 cents per 3-cell 

 battery for about a 13-hour charge when groups of ten are charged 

 and about 12 cents per 3-cell battery when charged in groups of 



increased toward tiie 3U-cell, ma.ximum capacity of this type 

 "Tungar." 



The entire apparatus, including all live parts, is enclosed in 

 a perforated, japanned finish, sheet iron casing. [The General 

 Electric Co., Si.'henectady, Kew York.] 



A NEW ELECTRICAL PUMP UNIT. 



A novel combination of condensation trap, electric motor 

 and centrifugal pump is shown in the following illustration. 

 The application of this unit to a line of heaters for auto- 

 matically dischargin.g the water of condensation into a hot- 

 well, lov/-pressure lioiler or feed-water heater, appears to be 

 quite practical where the radiation is below the water line. 



The unit is placed below the radiator and the condensation 

 flows into the trap by gravity, the air being taken care of by 

 the air vent and an automatic air valve. 



As the trap fills it tilts downward and remains in this po- 

 sition as long as there is any water in the system. In tilting 



downward, it throws in a snap switch, starting the motor that 

 is directly connected to the centrifugal pump, and the accumu- 

 lated water is discharged into the hot-well boiler or feed-water 

 heater. 



