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Kam's Oxygen Generator and Carburator have been invented with the object of providing cineinotographers and lanternists generally with the means of producing their oxygen and hydrogen as they require it. There are various kinds of apparatus in the market already, but they are unsuitable for several reasons for cinematograph work. It is well-known that the light required for this kind of work must be more powerful than for ordinary lantern projecting purposes, and sin add be from 1,000 to 2,000 candle power.
This power of light is more generally produced by weights placed upon the reservoir containing the generated oxygen gas. In many cases, some gallons of water are used to procure the necessary pressure, which is messy and inconvenient.
It will be clearly seen that this method has many disadvantages, especially when entertainments are given in friends' houses, or at a place of public entertainment, where it is difficult to procure the necessary weights.
Kamm's Generator has none of these disadvantages, as no weightis depended npon. By means of specially-constructed springs, a continual pressure, which can be varied from 100 to 200 lbs. is kept upon the gas. The weight is thus reduced to a minimum, and the apparatus— which does not weigh more than 35-Ibs.— may be stored in a comparatively small box. The usual water tank also, which is generally loaded with weights upon the container, is entirely discarded.
Kamm's Generator is a perfect machine, compact, and entirely reliable and automatic. The oxvgen is made by heating cakes made of Chlorate of Potash and Oxide of Manganese, which is the most convenient method, as any quantity of the cakes may be made and stored away for future use. For cinematograph work, two pounds of these cakes are sufficient to produce a most powerful light lasting for one hour ; and for ordinary lantern slides, only half this quantity is consumed by simply lighting one burner instead of two.
■ The following are some advantages of a generatorsIt is much cheaper than gas bought in cylinders.
There is no carriage to pay on the cylinders to and from, and the gas can be used
to the very last inch. Then again, if an operator living any distance from the oxygen works should
run out of gas, he has to order it and wait for its arrival, whereas with his
own generator he has the means of preparing the gas in five minutes. The advantages to colonists are self-evident, as this is very often the only
means they have of procuring oxygen gas.
The whole apparatus for producing the oxygen and hydrogen is very simple, as a glance at the illustration will show.