Installing hollow tubes in the structures through which steam or warm water is pumped also works, but this method has been seen to cause operational problems.

Because the additional increase in size of the heating area could not be improved by installing extra tubes, two of each were rebuilt to 0-4-2 and 0-6-2 locomotives.

It is not required to install the heating cables or tubes beneath the entire surface of the area.

That's because he installed fluorescent tubes underneath, making it appear to float on a halo of light.

It also installed pneumatic tubes that delivered cash and credit information to individual departments.

The demonstration, with the city covering the cost of installing and maintaining the buses and tubes, is being monitored by the Transportation Department, which expects to issue a report on the advantages of such a system for the city.

Then reattach the supply tubes to the ends of the shanks or install new tubes.