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SPECIAL FEATURES OF THE
. . . URBAN ARC LAMP.
Model " W" — Angle for Direct Current.
Being neither automatic nor semi-automatic, it is Operator, giving a continuous and steady light. Durability and first-class workmanship at a Immense Current Capacity (in the larger sizi
An improved slow feeding movement ensuring perfect steadiness of the light.
A fine Adjustment for the backward displacement of the positive carbon.
A rapid movement for separating the Carbon holders when re-trimming, etc.
A universal Centering Movement combining in the one instrument all the advantages (without the disadvantages) of a separate centering table
Great Portability, enabling the smaller sized lamps to be used in all ordinary limelight lanterns
Special Adaptability for use with widely varying currents and voltages, either alternating or direct, entirely under the control of the
moderate price.
s) without risk of over-heating.
Price £3 5s.
. . . PRICES . . .
URBAN ARC LAMP, MODEL "S" tested for use on direct current to 20 amperes; alternating current to 35 amperes. This type lamp is used for optical slide projection, amateur Cinematographs and stage lighting. Will fit any ordinary optical lantern.
Price £2 2s.
URBAN ARC LAMP, MODEL "A." This type embodies all necessary adjustments, and is the most practical lamp for lanternists and cinematographers using direct current to 30 amperes; alternating current to 50 amperes. Will fit any ordinary optical lantern.
URBAN ARC LAMP, MODEL
"W." The popular Arc Lamp for cinematographers and all projecting or lighting purposes where heavy currents are utilized. Tested for use with direct current to 50 amperes, and 70 amperes alternating current. (This is the type^ily lamp supplied with Urban ■-■ Bioscope Outfit " A "
Price £4.
Model M W " Position for Alternating Current.