Knickerbocker Co. v. Rogers’s Empirical Analysis

Citation profile

3 federal appellate · 1 district ·

Most-quoted passages

The sentences later courts lift from this opinion, ranked by how many decisions quote each — the parts of the opinion doing the work. These counts are smaller than the citation total above because most of the 9 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.

1. ““The current of dust-laden air, being blown through the tangential opening into the collector, is projected round the interior of the large end of the cylinder and cone. By reason of the fact that its specific gravity is greater than that of the air, all particles of dust are thrown, by centrifugal force, to the interior walls of the cone, and, circulating spirally down these walls, emerge from the small opening at the lower end of the cone. The air from which the dust has been more or less precipitated is itself subjected to the spiral motion and centrifugal force, and also to a degree of condensation greater than the outside air, by reason of the inpouring currents through the tangential opening, and therefore, upon reaching the lower edge of the tubular guard, pours upward round the exterior walls of the guard, to the air without. The effect of the centrifugal force, however, is such that, at the immediate axis of the whirling air, there is a rarification that causes the outward air to pour in, both through the guard and- through the lower opening. What office this plays in the ultimate operation of the collector, I am not able satisfactorily to determine. The net result of the operation is, however, clearly shown to be that a large percentage of the dust flows through the lower opening, while the air rising through the tubular'guard is almost entirely freed of dust. The evidence established, beyond any substantial doubt, that the machine is highly successful, and that no ”

   1 later decision quote this exact passage · from the majority
   e.g. Allington & Curtis Mfg. Co. v. Globe Co.

2. ““A dust collector, consisting of a tapering separating chamber, having an imperforate peripheral wall, in which the whirling body of air forms a vortex, and in which the air moves from the periphery towards the axis of the vortex as it becomes freed from the solid matter; said chamber' having at its large end a tangential inlet for tho dust-laden air, and a. discharge aperture for the purified air opening into the atmosphere, and provided with a tubular guard projecting into the separating chamber, and at its small end a discharge opening for the separated dust, substantially as set forth.””

   1 later decision quote this exact passage · from the majority
   e.g. Allington & Curtis Mfg. Co. v. Globe Co.