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May 31, 2017. Roll Grinders / FRIEDRICH SCHMALTZ WRG 4500; This Item is No Longer Made. Still looking for a FRIEDRICH SCHMALTZ WRG 4500? Try the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents. Schmaltz Grinder Manuals. Schmaltz grinding.

PATBNTED MAY 1, 1906. DRILL GRINDING MACHINE.

APPLICATION FILED JULY 5. 7 SHEETS-SHEET l. WiTNESSES: I I INVENTOR 1 Frzknn'c/Z 2); ATTORNEY No. PATBNTED MAY 1, 1906. DRILL GRINDING MACHINE.

APPLICATION FILED JULY 5. 7 SHEETS-SHEET 2, in m F'l GAL WITNESSES: INVENTUR Fn'girz'cb Afdfim No. Ragini Mms 2 Hindi Movie Free Download Songs. PATENTED MAY 1, 1906.

DRILL GRINDING MACHINE. APPLIOATION FILED JULY 5. 7 SHEETS-SHEET 3. ' PATENTED MAY 1, 1906. DRILL GRINDING MACHINE. APPLICATION FILED JULY 5.

7 SHEETS-BHBE'I' 4. DUJH I WITNESSES: No. PATENTED MAY 1, 1906. DRILL GRINDING MACHINE. APPLIOATION FILED JULY 5. 7 SHEETS-SHEET 5 PATENTED MAY 1, 1906, P. ' DRILL GRINDING MACHINE.

APPLICATION FILED JULY 5. 7 SHEETSSHEET G. ATTORN EY PATENTED MAY 1, 1906 P. DRILL GRINDING MACHINE. APPLICATION FILED JULY 5.

7 SHEETS-SHEET 7. 4M w P WITNESSES: M33424 Q3 E1 ATES PATENT ()FFICE. DRELL-GRINQING MACHINE Specification of Letters Patent. Xatenteoi may 1, 1906. Application filed July 5, 1904. To will whom it may concern.- ' Be it known that I, FRIEDRICH SCHMALTZ, a subject of the German Emperor, and a resident of Muhlweg, Offenbach-on-the-Main, in the Empire of Germany, have invented certain new and useful Im rovements in Drill- Grinding Machines, of w ich the following is a specification.

As far as some of the broader claims in this specification are concerned my present application for a patent is a division of my former application, Serial No. 169,118, filed August 11, 1903. The invention.

Relates to a machine having automatic movements for presenting the cutting edges of the drill to the grinding-disk successively and grinding the conical surfaces behind said edges to produce clearances of said surfaces with respect to the material bored. Without regard to the various scopes.