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Popular Science Montlily 



H 



Loading and unloading heavy barrels 

 with an electrically-operated crane 



A Pigmy Electric Crane with the 

 Strength of a Giant 



TIME is the all-important factor in the 

 dehvery system of any large distribut- 

 ing company. That is one reason why 

 motor-trucks have superseded the horse and 

 wagon. But it sometimes happens that 

 more time is consumed in loading or un- 

 loading a vehicle than in transporting the 

 material to its destination. Thus 

 there is a persistent demand at 

 present for cranes and lifting 

 machinery which will serve 

 the truck without delay 

 The illustration shows 

 a novel type of electric 

 crane employed to load 

 and unload three hun- 

 dred-pound barrels on 

 a truck. It does its 

 work in one fifth the time 

 required to roll the barrels 

 and lift them on the truck 

 by hand. Another advan 

 tage is that 

 the barrels are 

 not damaged 

 or handled 

 roughly in 

 unloading 

 and there is 

 little or no 

 danger from 

 accidents. It 

 requires the 

 services of 

 only two men. 



What the Zeppelins Have 

 Cost London in Acci- 

 dents and Deaths 



OME Secretary Cave, 

 in a recent speech in 

 the House of Commons, gave 

 the total number of fatal 

 accidents in the London 

 streets between sunset and 

 sunrise since the beginning of 

 the war and the total num- 

 ber of persons killed by Zep- 

 pelins. According to him the 

 number of fatal accidents in 

 the Metropolitan Police Dis- 

 trict during the hours of 

 darkness between August i, 

 1914, and January 31 last, 

 was nine hundred and fifty- 

 four. The number of persons 

 killed by Zeppelins in the 

 same district was one hundred and thirty- 

 seven. In the city proper there were 

 twenty-nine fatal accidents and thirteen 

 persons killed by Zeppelins. 



HANDLE 



Serving Individual Portions of Butter 

 by Machinery 



AN automatic butter-serving machine, 

 such as is shown in the illustration, will 

 cut and deposit the individual squares 

 of butter on their respective 

 plates in a fraction of the 

 time required by a waiter 

 for the task, and in a man- 

 ner more satisfactory to 

 the health experts. 



The butter is placed 

 in a cylinder inside the 

 machine, from which it 

 is forced through an 

 opening in the bottom 

 by means of a plunger 

 geared to a handle. A 

 downward throw of the 

 handle moves the plunger 

 the length of a notch. A 

 cutting wire is simultane- 

 ously swung into position. 

 The upward ii*reTr of the 

 ha^idie reverses the cutter 

 shaft and forces the wire 

 through the butter, thus 

 4ividing it into individual portions. These 

 It throws forward on to the plates set to 

 receive them. A separate chamber in the- 

 center of the machine is filled with ice to 

 keep the butter at the proper temperature. 



There are 

 eight storage 

 cylinders and 

 a compart- 

 ment for iee 



