We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
FOR MANAGERS AND OPERATORS 445
It will be well to clean the contact between block 7 and blade 6. Plate 7, say, once a month with 00 emery cloth.
Should anything happen to seriously injure the parts on top of relay 4, Plate 5, as, for instance, something falling on them and smashing the whole thing so badly that it could not readily be put back into shape, then new parts can be obtained from the factory. In order to remove the old parts, take out three screws in the top of block 10, Plate 7, the same being countersunk into the block — two on one side of the brass parts and one on the other; disconnect the wires from the parts; take out plunger 5, as per former directions, and you can then lift the block off and replace it with a new one. The block should be ordered complete with the parts assembled. Should it ever become necessary to remove the coil of relay 4, Plate 5, first proceed as before directed, and remove block 10, Plate 7. Having removed this block you will see three screws in the top of the coil casing. Take out these screws and disconnect the two wires which lead from the coil, and disconnect wires (two of them) X, Plate 5. You may then lift the coil out, and replace it with a new one if necessary.
The instruction given for removing the top and the coil of relay 4, Plate 5, applies equally to all the other relays; just remove the screws in the top of the block (the screws are countersunk in all cases), disconnect the wires, remove the relay plunger, and the whole thing comes off.
Starting anode relay resistance 1, Plate 5, is in series with starting anode relay 8, Plate 5 (also see Plate 2), the purpose of this resistance being to limit the amount of current flowing through the coil of the relay. It is connected permanently into the circuit of the relay magnet coil.
Resistance coil 9, Plate 5, is connected in series with the contacts of series underload relay 11, Plates 5 and 7. (You cannot see this relay in Plate 5. It is under arrow head 11). This resistance is not in series with the relay coil, but serves to limit the flow of current through the starting anode, Plate 2. But for this resistance the flow of current through the starting anode would be so heavy thai there would be liability of damage to the tube.
Resistance coils 1 and 9, Plate 5, may be removed simply by pulling them out of their clips as you would a cartridge fuse. Resistance coil 3 may be removed by disconnecting the wires attached to it, and taking out the screw which holds the carrying clip to the panel.
Shaking Magnet. — The action of the rectifier is made