DRIVES AND CONTROLS 



241 



Fig. 497. — A slider-operated switch. The slider 

 moves back and forth as indicated in the drawing. 

 This switch is not provided with any release arrange- 

 ment. It is used only on light model tools where no 

 damage would be done if the tool were laid down 

 with the power still on. 



Fig. 498. — Latest type switch handle for polishers, 

 Sanders, and portable grinders. The switch is in a dust- 

 tight chamber and is operated by a plunger instead of a 

 trigger which eliminates the necessity of an opening such 

 as is required when triggers or rockers are used. The 

 plunger makes a close fit. Switch is not self-releasing, it 

 being necessary to push the plunger for both on and off 

 positions. 



Fig. 499. — Latest design of switch arrangement for small die grinders and sanders. The toggle-operated switch 

 unit is mounted in a dusttight compartment and a dust seal is provided where the toggle comes through the case. 

 This type of switch does not have a release arrangement that opens it automatically. 



Fig. 500. — This switch is of the same type as shown in Fig. 495. It is mounted in a longer handle, being actuated 

 by a remote trigger arrangement. It is provided with an additional return spring for quick action and also has a 

 locking pin for holding the switch in the closed position when the trigger is released. A slight pull on the trigger 

 releases the locking pin and opens the switch. 



