I claim, 1st, the combination of the two molding cylinders, C C, when the molding recesses, I I, in said cylinders, and their intermediate followers, J J, are so proportioned with each other that the faces of the said followers cannot be brought in contact with each other, and when the said follower pieces have substantially the degree of curvature herein represented and described.
2d, In connection with the molding cylinders, C C, I also claim the central shaft, b, and its operating levers, L L, in combination with the jointed rods, n n, and the crank arms, m m, on the respective cam shafts, for operating all the cams simultaneously, substantially in the manner herein set forth.
3d, Also the vibrating spring scraper, i, in combination with the wire cloth belt, w, when arranged with the molding cylinders, C C, and operated substantially in the manner and for the purpose herein set forth.
72,138.--APPARATUS FOR ENAMELING PHOTOGRAPHIC PICTURES.--Nathaniel Weston, San Francisco, Cal.
I claim the rest, A, for the glass, or its equivalent, the use of the glasses, B B, the weight G, the fastenings, H, the clamps, E E, or their equivalents, in combination, for the purposes, herein set forth.
72,139.--VALVE GEAR FOR STEAM ENGINES.--Norman W. Wheeler, Brooklyn, N.Y.
I claim, 1st, Opening the ports, as i' i" so as to suspend the operation of the moving force upon the valve or valves at the period when the steam is cut off, and before the exhaust is opened, substantially as and for the purpose herein set forth.
2d, Also the closure of certain ports, as i' i" and k' k", so as to cause the valve or valves to resume the movement toward its or their full throw at the proper period, substantially as and for the purposes herein set forth.
3d, Also opening the proper ports, as h' h, so as to suspend the moving force operating upon the valve or valves, when they or it have reached the proper limit of throw, substantially as and for the purposes herein set forth.
4th, Also regulating the times of closing passages, so as to induce the cutting-off movement of the valve or valves, at variable periods, substantially in the manner and for the purposes herein set forth.