Rollin Blackman
1911 School Science and Mathematics  
Being in need of a means to carry a cumbersome photographic .outfit on a bicycle, I made for the purpose a successful device which clamps on the head of the frame. I have no trouble carrying my 5x7 view outfit (which weighs nineteen pounds) at a rapid rate. The outfit being stationary on the head of the bicycle does not throw the rider out of balance as it would if it were fastened on the handle-bars. The accompanying illustration will give the reader an idea of its construction without much
more » ... ion without much description. However, a few facts and figures may be of service. I bought a compact dress suit case, 171^i nches long, 11y^inches in depth, and 53^inches wide, in which to carry my view camera, plateholders, focusing cloth, tripod-head, and sample pictures. The upright board A in the illustration is 6 inches wide, %^c h thick, and 14 inches long. The base B is 6 inches wide, 614 inches long, and % inch thick. This board frame is reinforced and held together by the irons e and i, which are in the form of an "L" and fastened on with % inch bolts. They are % inch wide and Vis inch thick. The iron clamp 0 is made of iron 13^i nches wide and Vie inch thick. D is a wooden block l%x l%x41^i nches hollowed out to fit the bicycle head. Two % inch bolts pass through it and hold the iron clamp M. The upright board A is
doi:10.1111/j.1949-8594.1911.tb01487.x fatcat:vcqzhbs5jfhonpz23zmjomfxey