228 



Popular Science Monthly 



A gigantic pencil which when fully extended was seventy-five feet long. Eight of its "points" 

 could not only write but talk. But it's a stingy pencil despite its length ; it hasn't any eraser 



Here Is a Pencil with Nine 

 Good Points 



AT a masquerade ball recently given in 

 jTjl Oakland, California, by the advertis- 

 ing men of that city, there appeared eight 

 girls standing in single file and wearing 

 cone-shaped hats which resembled the 

 points of pencils. They were enveloped in 

 a clumsy, bag-like device which had a 

 big point at the front end. 



A signal being given, these girls stepped 

 forward one by one. To the amazement of 

 the on-lookers, they presented a gigantic 

 pencil, seventy-five feet long and thirty 

 inches in diameter. For once a pencil 

 became longer with use. 



on all hand derricks, the elevator platform on 

 which the electric saw is mounted can be 

 easily raised up to the level of any rack. 

 A rod on this rack has then to be moved 

 a foot or two to feed it into the saw. In a 

 few minutes the biggest rod is severed by 

 the' hack saw as it mechanically receives 

 its rocking motion from the motor. 



In order to cut other pieces of a different 

 size, the platform is merely lowered in its 

 guides to the level of the racks which con- 

 tain the stocks of the proper diameters. 

 It would ordinarily require six men to 

 carry the heavy rods across the room, 

 but by this means one operator can do 

 it alone and in half the time. 



The Latest Enemy of Lost 



Motion — the Portable 



Elevated Saw 



IN all manufacturing 

 plants using steel 

 rods, considerable 

 time and labor were 

 formerly required to 

 carry the heavy rods 

 from their racks to 

 the sawing machine 

 and back again when 

 short pieces were to 

 be cut off. But 

 thanks to a new 

 portable elevator de- 

 signed especially for 

 carrying the electric 

 saw, there is practi- 

 cally no loss at all. 



When it is necessary 

 to cut off short pieces 

 of different diameters 

 and shapes from the 

 stock rods, the elevator 

 is simply hauled over 

 to the racks. By means 

 of a system of reducing 

 gears such as are used 



The saw is simply raised or lowered to 

 the racks containing the different sizes 

 of stock. It takes the place of six men 



Deadening Noise by Past- 

 ing Tar Paper on a 

 Concrete Floor 



BY pasting heavy tar 

 paper to the con- 

 crete floor of a factory 

 the thundering noise 

 of passing trucks can 

 be eliminated. The 

 floor is first given a 

 coating of gray ce- 

 ment paint and, 

 when that is dry, a 

 second coating is 

 then applied. At 

 the same time one 

 side of a five-ply tar 

 paper is painted and 

 when both paper 

 and floor are wet the 

 paper is laid wet side 

 down on the floor and 

 rolled until all air- 

 pockets disappear. 

 This gives a tar-paper 

 flooring which acting 

 as a muffler, deadens 

 all noise from trucks 

 or heavy vehicles. 



