Page:Federal Reporter, 1st Series, Volume 5.djvu/467

 WILT V. GKIER. 455 �letters patent No. 221,056, is illustrated by model, defendant's Exhibit No. 5, and exhibits the foUowing means for effecting the elevation of the stack of trays, and their suspension, for the purpose of allowing new trays to be inserted at the bot- tom, to-wit : four movable uprights, each having a series of pivoted pawls, and' arrangea to slide in four stationary posts, secured in a frame, in combination with a series of boxes, or trays, ha.ving notches in their sides, whereby the boxes may be lifted independently of each other, or ail together. The power is applied through the medium of two worms, situated at each end of a drum, or shaft, extending along the s^ûe of, and at least the width of, the stack to be lifted. These worms engage into appropriate cog-wheels, affixefl to two other drums, or shafts, running at right angles to the first-named shaft, on opposite aides of the stiick, and extend horizontally the length of the same. Upon each of these last-mentioned shafts are geared, at the ends of the same, small cog-wheels, which, in turn, gear into vertical rack-bars on the four slid- ing posts of the machine. The power is applied by means of a crank at the end of the first-named drum or shaft. �Now, here is undoubtedly a contrivance and deviee by which the novel and useful invention first patented in the Eeynolds patent, from whom claimant derived his title, of elevating the stack of trays from a point in or on the lower- most tray thereof, bo as to permit the insertion of a fresh tray at the bottom, is accomplished. It matters not whether this deviee bas the capacity of lifting the upper trays in the series, so as to open the same for inspection or for any other purposes. So long as it accomplishes the purpose, or pos- sesses the capacity of moving up the whole series of trays from a point on the lowermost tray of the same, so as to permit the introduction of a fresh tray, it is, in that respect, an in- fringement of the complainant's patent ; nor is this conclu- sion altered because of any supposed advantages gained by the greater facility afforded by the Grier patent in opening the stack at any point above the lowermost tray for purposes of inspection or otherwise. ThusMr. Curtis says, in his Law of Patents, (4th Ed.,) § 311, p. 409: "If it accomplishes ����