The present invention is directed to an angled or tapered reamer. The reamer was initially designed to ream a truncated cone shaped opening in a cylinder used to repair a railroad crossing gate. After the gate falls off due to impact, the cylinder is placed on the gate pivot and a lever arm is inserted in the cylinder and used to retract the gate raising mechanism to a lowered gate position in order for a functional gate to be placed on the pivot. The reamer is preferably a tapered reamer but can also be a straight reamer.
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In use to make the crossing gate repair kit, a hole the diameter of the pilot end 13 is bored into a cylinder. The pilot end 13 is inserted into the hole and the rotation of reamer 1 reams a conical opening in the cylinder. The arbor end 19 acts as a stop to limit the depth of cut. An opening for a lever is cut through the diameter of the cylinder. The cylinder is then placed on a conical pivot for a crossing gate. A lever is then inserted into the cylinder and the crossing gate mechanism is returned to the gate down position for replacement of the gate.
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The tapered reamer 1 of the present invention can come in a kit form with different degree cutter bodies to obtain the desired angular degree in special jobs.
The retainers can be made to accept the straight arbor end as shown or it can accept MT or R8 arbors so they can be used in a milling machine with an R8 arbor or in a metal lathe with straight or Marse taper which is M.T. '. 1-2-3-4-5.
The carbide cutters are one-fourth inch wide or a size desired by the manufacturer.
The reamers of the present invention have multiple uses, and can be changed from one angle to another in a very short down time. Also it takes very little time to change cutters.
The present invention is disclosed at least in part in Provisional Application serial No. 60/297184 filed Jun. 11, 2001 and priority is claimed based upon the Provisional Application. The present application is a continuation in part of co-pending application Ser. No. 10/128386 filed Apr. 23, 2002 which in turn claims priority of Provisional Application serial No. 60/285623 filed Apr. 23, 2001. U.S. Pat. No. 4,560,309 discloses at the abstract “This invention relates to a tapered finishing reamer” U.S. Pat. No. 5,800,437 discloses at the abstract placing a cannulated reamer over a centering rod. See also FIG. 3. U.S. Pat. No. 4,740,121 discloses a tapered reamer having a guide portion. See FIG. 1 and FIG. 1a.
Number | Name | Date | Kind |
---|---|---|---|
330508 | Price | Nov 1885 | A |
1062114 | Neale | May 1913 | A |
1600770 | Metzger | Sep 1926 | A |
1873177 | Beard | Aug 1932 | A |
1919745 | Raphael | Jul 1933 | A |
1946584 | Judge | Feb 1934 | A |
1951100 | John | Mar 1934 | A |
2188584 | Tyne | Jan 1940 | A |
4114484 | Feamster, III | Sep 1978 | A |
4560309 | Hornsby | Dec 1985 | A |
4740121 | Arnold | Apr 1988 | A |
5800437 | Gustilo et al. | Sep 1998 | A |
Number | Date | Country |
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1961862 | Jun 1971 | DE |
Number | Date | Country | |
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20020164219 A1 | Nov 2002 | US |
Number | Date | Country | |
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60297184 | Jun 2001 | US | |
60285623 | Apr 2001 | US |
Number | Date | Country | |
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Parent | 10128386 | Apr 2002 | US |
Child | 10162097 | US |