re fast¬ ened to the side frames by angles 11 11, to which they are rivet¬ ed. These channel bars are braced on their under side by diagonal braces 12 12, which hold them in position and keep the truck square. The bolsters consist of a pair of I beams, a sectional view of which is shown in fig. 11.… … “ The arrangement, while producing the impression of a construction, and as little or no special machinery would be continuously moving streak of light, economizes current mate¬ required for the manufacture, this truck should have the ad¬ rially, as the quantity of current consumed will not exceed…
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-333-132.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten02unit-482-210.webp)
