Maintenance notice about new vacuum windshield wiper kits for jeeps from Army Motors, Vol. 6, No. 2, May 1945:
Vacuum Windshield Wipers for Jeeps
Some of you jeep herders can start riding “no hands”—as far as your windshield wipers are concerned. A new vacuum-operated windshield-wiper kit, Item Stock No. G503-5700249, is being issued for ¼-tons in areas where the rain is heavy and the downpour season long. A TB, out soon, will give the authority and parts numbers.
The kit’s complete with two motors, arms and blades, tubing, hose, clamps, and fittings to do the job. All you need’s a few tools and a little energy. Fig. 1 shows the finished installation.Remember, this kit’s for where it keeps rainin’ all the time, practically, and both hands are better off on the wheel.
Kits are expected to be available this month (May), but don’t bust your pencil making out requisitions unless you qualify as a long-term rain-in-the-face.
in the article, what is a TB?
TB = Technical Bulletin