Hand-Cranked Toothbrush (Oct, 1944)
Filed under: Just Weird, Personal Appearance — @ 7:03 am
Source: Popular Science ( More articles from this issue )
Issue: Oct, 1944
| Buy on Ebay
Source: Popular Science ( More articles from this issue )
Issue: Oct, 1944
| Buy on Ebay
THAT UP-AND-DOWN MOTION that dentists tell us we should use in brushing our teeth is easily accomplished by the use of a new manually operated rotary toothbrush invented by Denis Borgeat, Montreal, Canada. The shape of the handle allows the user to take a firm grip and vary the pressure of the brush against the teeth. Since the bristles are arranged in a spiral sequence, there is a transverse as well as vertical brushing motion. The construction has been kept simple and open to enable the user to keep the brush clean and free from accumulations of toothpaste.
Hand-cranked toothbrush…
Seems like a good (re)MAKE – a hand cranked tooth brush from Popular Science 1944 – Link…….
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