. Bacteriological apparatus : pathological, biochemical. Scientific apparatus and instruments; Bacteriology; Chemical industry. 16000-B 16000-D Ovens—Freas', Electric. Approved by the National Board of Fire Underwriters; have become favorably known for their durable con- struction, reliability and accuracy, and are satisfactory for long, continuous and unattended operation; are always ready for use, and are easily and quickly regulated for any desired temperature; constructed with a double wall of heavy asbestos transite, which is absolutely fireproof, with cast aluminum frame and door; air sp
. Bacteriological apparatus : pathological, biochemical. Scientific apparatus and instruments; Bacteriology; Chemical industry. 16000-B 16000-D Ovens—Freas', Electric. Approved by the National Board of Fire Underwriters; have become favorably known for their durable con- struction, reliability and accuracy, and are satisfactory for long, continuous and unattended operation; are always ready for use, and are easily and quickly regulated for any desired temperature; constructed with a double wall of heavy asbestos transite, which is absolutely fireproof, with cast aluminum frame and door; air space between inner and outer asbestos walls is filled with air-cell asbestos, permitting very little loss of heat and reducing current consumption to a minimum; interior of each is fitted with shelf racks, allowing shelves to be placed at any desired height; a small electric lamp within the oven, which can be lighted at will, is used for illumination and as a pilot; small window in door permits con- tents to be observed without opening door; two openings on each side of oven, which can be closed if desired, give ventilation; Freas regu- lator, made entirely of metal and of durable construction, so con- structed that no vapor from evaporating residues can reach contact points, regulates the temperature to within a fraction of a degree; temperature range is from that of the room to 180°C, and in high temperature oven, to 260°C; heating element, wound for 600 watts and requiring 250 watts to maintain a temperature of 105°C, con- sists of wire wound resistance plate on bottom of oven. 16000 Ovens—Freas', Electric. (Type R). On heavy iron base, with legs; intended for temperature to 180°C; furnished with flexible cord and plug to fit socket of ordinary lighting circuit and with high grade thermometer of special design, with graduation etched to 200 °C. No. A B C D Length, cm 40 45 50 55 Width, cm 40 35 65 80 Depth, cm 35 42 V2 35 45 Each 345^00 (Please s
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectscientificapparatusa
