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Resi-twin instrument to control vacuum distillation
254
CURRENT TOHCS
minutes after a facsimile has been requested, it can be delivered by the Micro-Twin operator. Placing a 100-ft. roll in the camera for recording is as easy as loading a box camera. A simple knob control sets the lens. As the documents are photographed, the film is automatically indexed to set up a filing system and simplify locating documents on the reader. The film indexing meter is an exclusive Micro-Twin feature. As many as 999 locations may be indexed on a 100-ft. roll. This 100-ft. roll, which takes up approximately the same space as a package of cigarettes, will record the average contents of a four-drawer filing cabinet. Visible, automatic and audible safeguards on the control panel are a feature of the Micro-Twin. An alarm sounds if an operator tries to record with improperly loaded film and the machine will not operate if the lens is not in the recording position. Another alarm sounds and the recorder will not operate if one of the lamps in the machine burns out. An indicator shows how much film has been exposed. A lock prevents tampering or accidental film exposure. High speed automatic feeding of documents is made possible with an "Acro-Feeder" attachment which features an adjustable micrometer control. This automatically stops the feeding when documents overlap or are thicker than the micrometer setting. An immobilizing switch permits feeding of documents of varying thicknesses without changing the micrometer setting. Each document takes its own picture as it passes the camera lens. The leading edge of the document turns on the lights to expose the film and the lights turn off as the trailing edge passes the photographic area.
[J, F. I.
R e s i - T w i n I n s t r u m e n t to Control V a c u u m D i s t i l l a t i o n . - - W e i l l e r Instruments Corporation ( N e w York) has announced a new instrument built to control a vacuum distillation process. It is provided with eight sockets to take the plug connectors of eight resistance thermometer bulbs. Two of the bulbs are connected to a sensitive differential control. This control will maintain a constant temperature difference between two points of the still. A switch on the upper panel connects the indicator bridge either to the control or to the switches on the lower panel. In the first position, control and bridge operate from the same bulb; in the second position, any one of six bulbs may be connected to the bridge by the switches on the lower panel. There are also two range switches on the lower panel--one for the control and the other for the bridge. The instrument measures and controls to 400 deg. C. N e w Portable Vibration M e t e r . - A new direct reading portable vibration meter--capable of measuring both displacement and acceleration--has been announced by the General Electric Company's Meter and Instrument Department. Designated as type V H A it measures over a frequency range of 10-250 cps, acceleration ranges of 0-0.03, 0-0.1, 0-0.3, 0-1, 0-3, 0-10 G, and peak to peak displacement ranges of 0-3, 0-10, 0-30, 0-100 and 0-300 mils full scale, according to G - E engineers. The new meter consists principally of a barium titanate accelerometer, which feeds through an electronic amplifier and a copper-oxide rectifier to an indicating microammeter. Unlike coil-type pick-up instruments, operation of this new meter is not affected by magnetic fields. Operating on common hearing aid batteries, the battery
CURRENT TOHCS
minutes after a facsimile has been requested, it can be delivered by the Micro-Twin operator. Placing a 100-ft. roll in the camera for recording is as easy as loading a box camera. A simple knob control sets the lens. As the documents are photographed, the film is automatically indexed to set up a filing system and simplify locating documents on the reader. The film indexing meter is an exclusive Micro-Twin feature. As many as 999 locations may be indexed on a 100-ft. roll. This 100-ft. roll, which takes up approximately the same space as a package of cigarettes, will record the average contents of a four-drawer filing cabinet. Visible, automatic and audible safeguards on the control panel are a feature of the Micro-Twin. An alarm sounds if an operator tries to record with improperly loaded film and the machine will not operate if the lens is not in the recording position. Another alarm sounds and the recorder will not operate if one of the lamps in the machine burns out. An indicator shows how much film has been exposed. A lock prevents tampering or accidental film exposure. High speed automatic feeding of documents is made possible with an "Acro-Feeder" attachment which features an adjustable micrometer control. This automatically stops the feeding when documents overlap or are thicker than the micrometer setting. An immobilizing switch permits feeding of documents of varying thicknesses without changing the micrometer setting. Each document takes its own picture as it passes the camera lens. The leading edge of the document turns on the lights to expose the film and the lights turn off as the trailing edge passes the photographic area.
[J, F. I.
R e s i - T w i n I n s t r u m e n t to Control V a c u u m D i s t i l l a t i o n . - - W e i l l e r Instruments Corporation ( N e w York) has announced a new instrument built to control a vacuum distillation process. It is provided with eight sockets to take the plug connectors of eight resistance thermometer bulbs. Two of the bulbs are connected to a sensitive differential control. This control will maintain a constant temperature difference between two points of the still. A switch on the upper panel connects the indicator bridge either to the control or to the switches on the lower panel. In the first position, control and bridge operate from the same bulb; in the second position, any one of six bulbs may be connected to the bridge by the switches on the lower panel. There are also two range switches on the lower panel--one for the control and the other for the bridge. The instrument measures and controls to 400 deg. C. N e w Portable Vibration M e t e r . - A new direct reading portable vibration meter--capable of measuring both displacement and acceleration--has been announced by the General Electric Company's Meter and Instrument Department. Designated as type V H A it measures over a frequency range of 10-250 cps, acceleration ranges of 0-0.03, 0-0.1, 0-0.3, 0-1, 0-3, 0-10 G, and peak to peak displacement ranges of 0-3, 0-10, 0-30, 0-100 and 0-300 mils full scale, according to G - E engineers. The new meter consists principally of a barium titanate accelerometer, which feeds through an electronic amplifier and a copper-oxide rectifier to an indicating microammeter. Unlike coil-type pick-up instruments, operation of this new meter is not affected by magnetic fields. Operating on common hearing aid batteries, the battery