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EQUIPMENT Sr<br />
DEVELOPMENTS<br />
Adjustable Ceiling Diffusers P-376<br />
Available in Two Models<br />
The Barber-Colman Co. has introduced<br />
new ceiling outlets, adaptable to any air<br />
conditioning systems, which can be adjusted<br />
to deflect air streams in either<br />
vertical or horizontal patterns.<br />
FOR MORE<br />
INFORMATION<br />
USE Readers'<br />
Bureau Coupons^ P^SC 60<br />
Onan Generating Plants P-379<br />
Are Diesel<br />
Powered<br />
D. W. Onan & Sons. Inc., have added<br />
five new models of Diesel-driven electric<br />
generating plants, equipped with automatic<br />
voltage regulators which range from<br />
12 '72 to 55 KW to their line of Diesel generating<br />
equipment.<br />
Available in wide size ranges for any<br />
installation requirements, the Venturi-Flo<br />
outlets come in two separate models. Model<br />
J supply outlet is equipped for rapid temperature<br />
equalization as well as being air<br />
flow adjustment.<br />
Similar in appearance to Model J is the<br />
JC unit which is a combination supply<br />
and exhaust model finished in a prime<br />
coat or baked metalescent aluminum finish.<br />
Flameproof Drapery Doubles P-377<br />
As Wall Covering<br />
A flameproof drapery material called<br />
Colorbestos, which may also be used as a<br />
decorative wall covering and can be applied<br />
to wall structures of plaster, steel<br />
or asbestos board, is announced by Johns-<br />
Manville.<br />
Much lighter in weight than ordinary<br />
asbestos cloth, Colorbestos is said to drape<br />
and fold nicely, has a good appearance<br />
and feels and handles easily, as well as<br />
being flameproof.<br />
Colorbestos combines asbestos yarn with<br />
a warp of cotton. The result is a ma-<br />
terial which is reported to meet the need<br />
for a drapery that will not support combustion<br />
and is also attractive.<br />
Colorbestos is being produced in ten<br />
plain colors and three different weaves and<br />
can be washed or dry cleaned without<br />
damage to fire protection qualities. The<br />
material comes in 50 or 100-yard bolts of<br />
standard 48-inch width. Its average weight<br />
per square yard varies from 0.92 pounds for<br />
the plain weave' to 1.1 pounds for a ratine<br />
weave.<br />
Cooling Tower Adaptable<br />
To Self-Contained Units<br />
A new cooling tower<br />
especially adaptable<br />
to self-contained air<br />
conditioning units is<br />
announced by Carrier<br />
Corp.<br />
Available in four<br />
models, ranging from<br />
5 to 15 tons of refrigeration<br />
capacity,<br />
P-378<br />
the Carrier unit permits<br />
the recirculation<br />
of water with a minimum<br />
of loss due to<br />
normal evaporation.<br />
The unit features a<br />
water turbine drive with electrical connections<br />
needed only for a pump, apart<br />
from the tower itself. It requires floor<br />
space of only 36 inches wide by 36 inches<br />
deep and stands seven feet high. The fill<br />
material is of waterproof asphalt impregnated<br />
board.<br />
The four lightweight models are for 5,<br />
TVs, 10 and 13 h.p. air conditioning systems.<br />
Installation requires a minimum of<br />
piping connections. Casing is of durable,<br />
water-resistant construction, hot dipped<br />
after assembly to permit outdoor installation.<br />
The unit may also be installed inside<br />
in a room apart from the conditioned<br />
area.<br />
Powered by International Harvester lowspeed<br />
engines, the new units combine aUweather<br />
gasoline engine starting with full<br />
Diesel operation. The engine is started by<br />
cranking a 12-volt starting system, and<br />
less than a minute of warm-up is needed<br />
before changing over to full Diesel operation<br />
by means of a control lever. A battery<br />
recharging generator is provided to<br />
maintain starting batteries at full charge.<br />
Available in all standard voltages, frequencies<br />
and phases, the new Diesel models<br />
are said to assure low-cost electric<br />
power. The units are equipped with Onan<br />
voltage-regulated generators, which are designed<br />
and constructed for operation under<br />
all climatic conditions.<br />
V/W Compressors Provide<br />
P-380<br />
Freedom From Vibration<br />
A new line of high speed refrigeration<br />
compressors for ammonia application has<br />
been developed by the York Corp., according<br />
to John R. Hertzler, vice-president and<br />
general sales manager.<br />
Termed V/W compressors because of the<br />
arrangement of cylinders, the new design<br />
is said to provide freedom from vibration.<br />
Cylinder liners and all other parts subjected<br />
to wear can be readily removed for<br />
replacement with a minimum of effort and<br />
at low cost.<br />
Most of the parts on the various size<br />
compressors are interchangeable, eliminating<br />
the necessity of keeping a large assortment<br />
of spare parts in inventory, where<br />
a number of compressors have been installed.<br />
66 The MODERN THEATRE SECTION
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