Do It With Tools and Machines 



A convenient oil 

 and grease cup 

 in which the grease 

 is retained for an 

 emergency. The 

 object of this cup is 

 to prevent the over- 

 heating of the bear- 

 ing should the oil 

 passages become 

 clogged or the at- 

 tendant fail to start 

 the oil cup feed or 

 neglect to fill the 

 oil cup promptly 



A triangle that can 

 be used alone for 

 drawing any kind of 

 an angle or series 

 of parallel lines di- 

 rectly and easily 



With this electrically driven screw-extractor a 

 broken screw may be removed as quickly 

 as a new one without waste of time. It is 

 made similar to the portable electric drill 



m * 



a 



A vise for use between milling 

 machine centers which saves 

 much of the time of the usual set-up 



A light inclosed 

 electric hoist that 

 may be operated 

 from a distance and 

 used in a manner 

 similar to the hoist- 

 ing unit on travel- 

 ing jib or wall 

 cranes. The addi- 

 tion of an operator's 

 cab adapts this 

 hoist for high speed 

 intercommunication 



74 



COTTER PIN 

 SHAFT 



CLIP CHANNEL 



COTTER PIN 

 CHANNEL 



A cotter pin extractor 

 that not only draws the 

 pins but straightens the 

 shanks so that they may 

 be used again without 

 any special operation to 

 permit their reinsertion 

 in the opening of the 

 bolt or shaft from 

 which they were 

 taken. The clip 

 for drawing the 

 cotter is worked 

 by a pair of 

 arms between the 

 closing handles 



A handle like a saw 

 grip to receive the 

 shank of an ordi- 

 nary file of any size 



An expansion bolt shown 

 in detail in Fig. 1 and fully 

 expanded in hole in Fig. 2 



