An electrical engineer suffering from catarrh devised a windscreen that lowered onto his face and protected him from the wind and dust in his 1917 Royal Enfield. He would have been in trouble, however, if it rained. For that he should have installed something like the turbo visor,
Of course, he probably didn't wear a helmet, and the turbo-visor was only introduced in 1964. And it is still sold today!.