Improvements in dental burrs, and in hand-pieces therefor / [John Dietrich Wilkens].

  • Wilkens, John Dietrich.
Date:
1896
Catalogue details

Licence: Public Domain Mark

Credit: Improvements in dental burrs, and in hand-pieces therefor / [John Dietrich Wilkens]. Source: Wellcome Collection.

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    JV° 2535 A.D. 1895 Date of Application, 5th Feb., 1895—Accepted, 5th Feb.t 1896 COMPLETE SPECIFICATION. Improvements in Dental Burrs, and in Hand-pieces therefor. 1, John Dietkich Wilkens, of No. 2231 Prairie Avenue Chicago, in the County of Cook and State of Illinois, United States of America, Mechanical Engineer, do hereby declare the nature of this invention and in what manner: the same is to be performed, to be particularly described and ascertained in and by 5 the following statement:— My invention relates to certain improvements in hand pieces and burrs for dental engines; and it consists in certain features of construction of those parts of the hand . piece which are manipulated to lock and release the tool; and in certain features of construction of the tool, «.<?., a dental burr. lU In the accompanying drawing, Figure 1 is a view of the hand piece complete. Figure 2 is a sectional view, partly in elevation, showing the tool in position to be withdrawn. Figure 3 is a view showing separately and detached the chuck, the chuck actuating 15 rod and the rear section of a divided spindle. Figure 4 is a perspective view, partly broken away, of the forward section of the divided spindle. Figure 5 is a perspective view of a cam lever. Figure 6 is a similar view of an actuating collar for the earn lever. 20 Figure 7 is a sectional elevation of the connected ends of the spindle sections and the sliding collar for actuating the cam lever, the latter showing in side elevation. Figure 8 is a detail plan view of the outside casing. Figure 9 is a similar view of a sliding sleeve which works over the casing. 25 Figure 10 shown in inverted plan and side elevation, respectively, a removable detent used in connection with the sliding sleeve. Figure II is a perspective view of an eight toothed burr, showing the stem partially broken away. Figure 12 is an end view of the head or working end of the burr shown in 30 Figure 11. Figure 13 shows a six toothed burr ; and Figure 14 a twelve toothed burr, both of which embody my invention. The hand piece shown in the accompanying drawings belongs to that class wherein a tool driving spindle is revolubly mounted within a non-rotating casing or sheath, 35 the spindle being adapted for connection at its rear end to a flexible shaft or other means for rotating it. In the drawing, A represents an enclosing casing having the usual hard metal nose piece a and an aperture a1 in the wall of the casing toward its rear end. C represents a sheath collet having threaded ends c, one of which threaded ends 40 engages with the internal threads of the casing A, and the other of which engages with a coupling section (not shown). Within the collet C is an internal spindle collet D, having a jamb nut d. E, (Figure 3), represents the rear section of a divided spindle which has its forward end externally threaded for engagement with the front spindle section F, 45 (Figure 4). The spindle section E is longitudinally slotted, as at e, Figures 2, 3 and 7, and this slot is bisected by a transverse depression e\ which forms a seat for [Price 8</.j