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to use electricity only. Dash, coil and speedometer lamps are depicted at C. A combination trouble lamp and cigar lighter is shown at D. The trouble lamp at E is an easily portable form and is convenient for use around the power plant, gasoline tank, etc., deriving its current from the regular battery. A combination tail lamp, having red lens at the rear and a white glass at the side to illuminate the number plate, is shown at F. The approved construction of a variable focus electric head lamp is shown at G.

The simple attachment shown at Fig. 293, A, is intended to convert any dry cell to a convenient inexpensive and portable electric lantern. It consists of a reflector carried by a frame that attaches to the terminals of the dry cell. To take the strain from the terminals when the cell is carried, a supplementary clamping band is also secured to the handle, this being fastened to the top of the cell.

The feature of the Federal electric hand lantern shown at B, is that it casts no shadow on the ground beneath it. Instead of having the lamp at the top with a solid base beneath, it has an open foot consisting of a ring and four legs, so that the light is strong immediately under the hand of the person carrying it as well as spread all around. It is fed with current from a special dry cell that is easy to replace, and clips are supplied to fasten the lamp to the running board of the car. It is very compact when folded and the lamp bulb is well protected, while there is a space inside the dry cell where a spare bulb can be put.

For automobiles without electric lighting sets when a moderate illumination is required now and then for short periods, there is a great deal in favor of dry batteries as a source of current, as they are less trouble to look after than oil lamps. The Wireless Autolight depicted at C is a well-made case supplied with a lamp and reflector, glazed in white, green or red. It takes a standard No. 6 cell.

Searchlights of the form shown at D are also becoming popular because these are carried on dirigible brackets attached to the windshield or any other convenient part of the car and the beam of light can be directed against sign boards, around curves, etc., at the operator's pleasure.

Novel Bulb Designs.—Combining two separate and distinct lights in one, the Tulite bulb, shown at A, Fig. 295, is designed solving the headlight glare problem. Two types of this bulb are shown, type R being inserted in the lamp with the minor filament above the major, projecting the light to the roadway at short range. This allows the focusing of a strong headlight as far ahead as desired and, when switching to the minor filament, a good driving light at 40 to 75 feet in front of the car. Type A has a minor filament, mostly surrounding the major and diffuses the light in a general way, covering eight to ten times the area of the major filament when lighted. The standard Tulite bulb is 4 candlepower on the minor and 20 candlepower on the major filament, but other combinations are furnished.

A new type of headlight bulb is the Argon depicted at B, which is filled with nitrogen gas, put into it by pressure. This gas contains a small percentage of argon, about 2 per cent., which, the maker claims, permits the use of a higher voltage for a given filament. The filament is of drawn tungsten wire and is so coiled that when properly focused the lamp does not produce dark rings.

INDEX

58

373

374

390

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202

PAGE
PAGE
Acid and Water Carboy Stand.. 149

Battery Ignition System Hints.. 179
Action of Dry Cell. ........... 25

Battery Ignition Systems, Trou-
Action of Dynamo............. 49

bles in ..................... 134
Action of High Tension Ignition

Battery Ignition, Timing......
System .....................

Battery, Simple Primary....... 24
Action of Low Tension Magneto 45

Baumé-Specific Gravity Equiv-

alents .........
Action of Mercury Arc Rectifier 150

......... 140
Action of Splitdorf-Dixie Mag-

Bijur-Hupmobile Starting Gear-
206
ing ............

.........
neto ........................

294
Action of Storage Battery......

Bijur One-Unit System......... 372
Action of Switch. .............

Bijur-Packard System. ....... 383

22
Adjusting Bosch - Rushmore

Bijur Systems, Lighting and
Regulator ......

Starting ...........

372
.........
Adjusting Magneto Contact

381

Bijur System Parts..........
Breaker .................... 233

Bijur Two-Unit Systems....
Adjustment of Bosch-Rushmore

Bijur Voltage Regulator...
Relay ......................

Bosch DeLuxe System. ......
Air Heater, Electric..........

Bosch D. U. 4 Magneto.... 200
Alternating Current Rectifiers.. 149

Bosch N. U. 4 Magneto........
Ammeter, Delco ..............

Bosch-Rushmore Automatic Re-
Ampere, Definition of..... 59

lay ......................... 458
Amperemeter, Function of...... 271

Bosch-Rushmore Regulator..... 458

Bosch-Rushmore Systems..... 390
Amperemeter Indications, Delco

Brushes, Care of..............
System .................... 446
Apparatus for Battery Charg-

Brushes, For Magneto.......

Bulbs, Novel Designs of......
ing ...........
Atwater-Kent Distributor....

Buzzer Horns ..............
Auto-Lite System....

339
Automatic Controls............ 67
Automatic Safety Switch......
Automatic Spark Advance..... Capacity of Storage Battery.... 30
Automatic Spark Advance, Care and Repair of Commuta-
Delco .......
.......... 91

tors ......
Care of Bosch N. U. 4 Magneto
Care of Brushes .............

Care of Lamps................ 436
Battery Charging Apparatus.... 148 Chalmers-Entz System......... 339
Battery Charging, Lamp Bank Charging Batteries from Alter-
for ......

........ 155 nating Current Mains. ....... 149

96

...... 427

499

............. 148

72

85

.

.

.

.

84
227

.......... 429

204

27

[blocks in formation]

Cranking Action, Voltmeter Test

for ........................ 452
Cure for Sulphating........... 147
Current Flow, Gray & Davis

System ........ ......... 352
Current Fluctuation in Magneto 40
Current Production, by Chemical
Action .....

.......... 23
Current Regulation by Third

Brush ...................... 327

94

22

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352
166

...........

450

22
56

94

Charging Edison Battery....... 160
Charging from Direct Current.. 153
Charging Rules................ 143
Charging Storage Battery...... 141
Chemical Action Produces Elec-
tricity ..

... 23
Circuit Breaker, Delco.........
Circuit Breaker or Cutout...... 267
Circuit Breaker, Thermostatic..
Circuit, Closed ....... .........
Circuit, Open ............
Circuits, Gray and Davis Syg-
tem .......

........
Cleaning Spark Plugs..........
Cleaning Vibrator Points.....
Closed Circuit .......
Closed Circuit Distributor Sys-
tem .............

120
Closed Circuit, Parts of........
Closed Coil Winding..........
Combination Switch, Delco..... 98
Commutators, Care of.........
Comparing High and Low Ten-

sion Magneto ...............
Comparing Two-Unit and One-
Unit Systems................

279
Compound Distributor.........

208.
Compound Wound Dynamo..... 54
Compressed Gas, How Ignited..
Condenser, Function of........ 70
Condensers, Delco...

.. 92
Conductors, Electrical.........
Connecticut Ignition System,

1916 Type..................
Connecticut Ignition Unit..... 120
Constant Speed Dynamo....... 51
Construction of Storage Battery 28
Contact Breaker, Connecticut

System .....................
Contact Points, Adjusting...... 232
Contact Points, Cleaning...... 232
Contacts, How Spaced in Timers 81

429

46

Defective Windings, Testing for 447
Definition of Electrical Terms.. 56
Delco Ammeter ............... 96
Delco Ammeter Reading, Motor-

ing Generator...............
Delco Automatic Spark Advance
Delco Circuit Breaker..........
Delco Combination Switch..... 98
Delco Condenser............... 92
Delco Cranking Action, Test of 452
Delco Current Output Regula-

tion ........... ........ 326
Delco Generator Clutch........ 317
Delco Generator Troubles, In-

dications ...................
Delco Ignition Coil Parts......
Delco Ignition Distributor, 1916

Model ............
Delco Ignition System..
Delco Induction Coil. ......
Delco Motor Clutch..........
Delco Motor Generator........ 314
Delco Motor Generator Lubrica-
tion .............

320
Delco Resistance Unit.......... 94
Delco Starting and Lighting
Systems ....

..... 312
Delco Starting Switch.........
Delco System Troubles. ... 442
Delco Test Points.

445

446

66

96

320

........

304

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