Page:Federal Reporter, 1st Series, Volume 5.djvu/809

 TLOWEB V. Bi^NEB. T97 �instituting a few experiments, during which the plates are to be very slowly heated, and from time to time to be inspected until the amalgamatijon required takes place." �There seems to be n» difficulty or uncertainty in regard to the foregoing description of how the process was to be oarried on, or of understanding the nature of the invention which was in the minds of the patentees. Their aim was to pro- duce an indelible impression upon the surface of sheet tin, and this was done by transferring metallic paint from the surface of a stone prepared in the usual way for lithographie printing to the surface of the tin, and then fastening it there by the slow application of artifioial beat. Paints with a metallic base were used, upon the theory that some sort of a fusion or amalgamation took place between the metallic base of the color and the metallic surface of the tin. The specifica- tions of the original patent distinctly state, as the crowning resuit of the cooling of the plates after the application of the process, "that the lettering, designs, or coat of color will ;be strongly united with the surface of the plates, and, in fact, with the body of them, so as to be indelible." • Thus construing the original patent, is the re-issue for the same invention? Without quoting largely its claims and specifications, it may be sàid generally: (1) That in tihe re-issue the application of colora and letters, by means of a press, is not confined to sheet tin or.tinned sheet iron, asrin ihe original, but includes 'the application to cans, boxes, or other metallic articles. The claims state that the process is to be employed in lettering, decorating, aiid ornamenting sheet tin, andv in addition thereto, articles rûanufactured frOm tin, as well. (2) That whilst in the ôrigiiial metallic colors— that is, colors having metals fora base-i^only are spoken of to be used in the processj a. preference seems to be given in the re-issue to minerai colors. . The word "metallic," as qualify- ing colors, is dropped, and any kind of color may be. tàken, whether the base be a mineral,' a metal, or à vggetable or animal substance. Full directions for rnixing and drying the paint are also àdded, although no suggestion/for the use of dryers has been made ihthe original. (3) That the sugges- ����