Transactions . Fig. 4— Scale. 1 Foot to I inch. V</j. MX, Plate/. Arf-KeiaiComp?;. KewjaiaeuprnTS™ THE BOLD BOX-CONTROLLER AND BOX-SWITCH. 3/ the movement of the lever, about 185 degrees, is determined byslitting the edge of the plate and turning it up. This movement,also, going past the centres, forms a lock on the switch. A re-arrangement of the switch has been made to adapt it to three-throw points. The lever in this case works under a guard inwhich is a notch corresponding to the middle position. A springunder the lever lifts it into the notch when the pressure is takenoff th
Transactions . Fig. 4— Scale. 1 Foot to I inch. V</j. MX, Plate/. Arf-KeiaiComp?;. KewjaiaeuprnTS™ THE BOLD BOX-CONTROLLER AND BOX-SWITCH. 3/ the movement of the lever, about 185 degrees, is determined byslitting the edge of the plate and turning it up. This movement,also, going past the centres, forms a lock on the switch. A re-arrangement of the switch has been made to adapt it to three-throw points. The lever in this case works under a guard inwhich is a notch corresponding to the middle position. A springunder the lever lifts it into the notch when the pressure is takenoff the handle. Another rearrangement, for dealing with empties from thescreens, consists in fixing a long vertical lever and connecting-rod to the deflector-plate, enabling a lad to easily deal with tenboxes per minute. The long lever can be locked, if necessary, bymeans of a notch. The advantages arrived at were an easily-worked, self-locking switch, not liable to be clogged up with dust or grease,and able to be moved over rapidly
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Keywords: ., bookcentury1800, booksubjectmechan, booksubjectmineralindustries
