Garden City, L. I. Bank Does It With Mirrors
THE submarine periscope has gone into the banking business. It’s all done with mirrors, as a look into the Garden City Bank and Trust Company of Garden City, L. I., would show you.
To save valuable space on the ground floor, the bank set up its note department on the second floor. Patrons, however, still do their banking on the main floor, thanks to a periscope channel built into the wall.
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World’s Non-Stop Tractor Record Made by Californians
A STANDARD by which modern tractor farming may be gauged was set up by the Battaglia brothers and their caterpillar tractor near San Jose, California, when Dean C. L. Cory of the College of Mechanics, University of California, unsealed the gas tanks and stopped the official non-stop record of exactly ten days and nights.
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NEW ELEVATOR WORKS WITHOUT CABLES
Elevators travel under their own, self-contained power in a system upon which a New York inventor has just received a patent. Each car is suspended from a hollow drum containing a driving motor. Under control of the operator, the drum revolves and climbs a vertical series of rollers by means of a worm on its exterior, as shown in the diagrams.
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“Air Cleaners.” Is that what the kids are calling them nowadays?

ELECTRIC UNIT CLEANS AIR OF HARMFUL PARTICLES
Experimental models of an electrical unit to remove dust, soot, pollen and other solid and liquid particles from the air are being tested by Westinghouse Electric and Manufacturing company. Data are being gathered by physicians who are using similar units in treatment of patients afflicted with various types of asthma or pollen fevers. The unit is arranged to draw particle-filled air past two small wires, suspended horizontally. Connected to a power pack, which raises their voltage, these wires “charge” all air particles in their vicinity. This is called “ionizing” the air. Next, the ionized particles are drawn through a series of plates which also are charged. The plates have opposite polarity, with the result that the air particles move and cling to the plate, just as a needle jumps over to a magnet. Thus, air is made to clean itself. In addition, a film of oil covers each plate to make certain the particles stick to the plates. The air, freed of particles, then is sent into the room by a fan. The unit requires no more current than an ordinary electric lamp.
That thing looks a little unstable to me…
Mechanical “Beanstalk”
Work at a height of 22 feet is easily-reached by a mobile hydraulic platform. The user operates’ a manual hydraulic pump that boosts the tubular-steel platform to its maximum altitude in two minutes. It is lowered by pulling a pressure release. Four screw jacks lift the equipment off its rubber-tired casters and hold it in position during use. The complete unit can be folded to permit passage through a doorway six feet six inches high and less than 2-1/2 feet wide.