672 



Popular Science Monthly 



rises and does not permit rotation. 

 The present apparatus can rise to a 

 height of sixteen hundred feet. Its 

 length is twenty feet, its weight about 

 fifty-five pounds, and the pictures are 

 seven and one-quarter inches square. Its 

 parts are shown on the preceding page. 

 The guide-staff about fifteen feet long 

 is made in two united but easily sepa- 



rable parts, the upper being bolted to 

 the rocket, the lower carrying the vanes, 

 as shown. 



When ready for use the rocket is 

 mounted on a collapsible, heavy frame 

 carrying the sighting device and weigh- 

 ing about eight hundred and eighty 

 pounds. The rocket is ignited by a 

 distant electric device. The weight im- 

 mediately runs down and the charge is 

 fired, driving the rocket up one thousand, 

 six hundred feet in eight seconds. When 

 near the highest point of ascent the 

 contact in the top of the hood opens the 

 instantaneous shutter and releases the 

 parachute. As the parachute opens, the 

 rocket divides into two parts, connected 

 by a thirty-two-foot belt. The hood and 

 camera hang just under the parachute, 

 while the container and staff swing about 

 thirty-two feet below. The parachute, 

 relieved of extra weight, lands the camera 

 without jar in sixty seconds. 



