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"The abolishment of pain in surgery is a chimera. It is absurd to go on seeking it...knife and pain are two words in surgery that must forever be associated in the consciousness of the patient."
Dr. Alfred Velpeau, French surgeon ; 1839
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| Number | Title | Issue Date |
| 7360725 | Material crusher Crusher has a housing with a cylindrical crushing chamber defined by a tubular wall. Opposed side plates are secured to respective ends of the wall. A drive shaft rotates impact tools within the chamber. An intake aperture and a discharge aperture are in communicati... | 04/22/2008 |
| 7222805 | Shredder with cage relief A materials processing system adapted for the reduction of metallic materials including a material feed portion configured to convey materials to a mill portion comprising a motor driven rotor in close running fit with a cage mounted grate through which reduced mate... | 05/29/2007 |
| 6877610 | Screen assembly A screen assembly 22 includes a conveyor 26 pivotably mounted beneath a screen 24 for segregation of fractions of material, for example from a mobile crusher 10. Hydraulic cylinders (not shown) are used to selectively move telescopic arms... | 04/12/2005 |
| 5472147 | Comminuting machine with comminution grates The comminuting machine includes a housing provided with a rotary impact mechanism. A conveyor conveys infed material to the rotary impact mechanism which cooperates with an impact plate in disintegrating the infed material. A first comminuting grate foll... | 12/05/1995 |
| 5221052 | Household separating compactor A household compactor and separator utilizes linear motion in crushing glass and metal refuse for comminution and separation. A crushing element disposed on a worm shaft crushes refuse against a steel grate, broken glass falling therethrough into a glass ... | 06/22/1993 |
| 4318512 | Quick action screen latching apparatus for hammermill The invention herein relates to the screen latching apparatus of a hammermill structure in which the improvement consists of a releasing and latching arrangement for the removal and replacement of a screen member by a tension linkage whereby the screen is... | 03/09/1982 |
| 4151960 | Comminution device A comminution device having an improved means for supporting and gaining access to the sizing screen as well as an improved arrangement for material discharge from such comminution device.... | 05/01/1979 |
| 4133489 | Shredders, notably for processing heterogeneous materials A rotary comminuting apparatus adjustable to reduce either hard or soft materials includes a segmented perforated semi-cylindrical grate partially surrounding the lower portion of the rotor. The grate segments are pivotally supported on a common axle para... | 01/09/1979 |
| 4037795 | Waste disposal systems A centralized vacuum waste disposal system, particularly for use in hospitals, comprises one or more shredding machines feeding a remote incinerator via a ducting system through which shredded waste is drawn by an air compressor. To prevent contaminated a... | 07/26/1977 |
| 4002302 | Reducing machine having a positively displaced grate The cage of a reducing machine is positioned within the machine housing below the rotor. One end of the cage is pivoted with respect to the machine housing, while the other end is suspended from chains which pass over sprockets so that when the sprockets ... | 01/11/1977 |
