Specification of Richard Oke Millett : instruments for extricatng teeth.

  • Millett, Richard Oke.
Date:
1857
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Richard Oke Millett : instruments for extricatng teeth. Source: Wellcome Collection.

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    - -- ■ - - I ——.——~~ ■ ■ Millett's Improvements in Instruments for Extricating Teeth. manner in which the same is to be performed, are fully described and ascertained in and by the following statement thereof, reference being had to the Drawing hereunto annexed, and to the figures and letters marked thereon, that is to say • The instrument consists of a handle, shaft, lever, bolster, claws, and screws. 5 Figure 1 :—A, the handle; B, dotted lines, shewing the hollow within the handle, into which is inserted the square of the shaft. Figure 2A, the shaft; B, the square of the shaft, on which the handle is fixed; C, the dotted lines, marking the hollow between the square, which is occupied by the screw D, that keeps the handle on the square; E, the gaff, which receives the claw; 10 F, the lever; G, dotted lines, shewing the channel or hole within the lever, through which the bolster screw passes. Figure 3 :—A, the bolster, shewing its smooth surface; B, dotted lines, marking the direction of the gaff on the opposite side. Figure 4 :—A, the bolster, shewing its upper or lowest side; B, the gaff of the bolster, into which is inserted the lever; C, dotted lines, 15 marking the direction of the bolster screw within the bolster. It shews itself as it passes across the gaff B. This screw retains the lever in its place. Figure 5 :—A, the handle ; B, the shaft; C, the claw, shewing its upper or convex surface; D, the head of the claw screw; E, dotted lines, marking the direction of the claw screw within the end of the shaft. This screws retains go the claw when adjusted in its place. F, the upper side of the bolster; G, a tooth. This Figure represents a diagonal view of the instrument, the tooth being lifted from its socket. Figure 6:—A, the claw; B, section of the shaft; C, the lever ; D, the point or end of the bolster screw ; E, the end of the bolster ; F, dotted lines, shewing the continuation of the lever within the gaff of the 25 bolster; G, a tooth. This plate represents a view of the instruments, looking from the handle along the shaft. The tooth is lifted from its socket. Figure 7 :— A, the head of the claw screw ; B, the claw; C, the lever; D, the head of the bolster screw; E, the end of the bolster; F, dotted lines, shewing the lever within the gaff of the bolster; G, the tooth. This plate represents a view of 30 the instrument looking at the end along the shaft towards the handle. The tooth is lifted from its socket. What I claim as my Invention is the mode of combining and constructing of the parts called the lever and bolster with the stem of the key, as above described. 35 In witness whereof, I, the said William Oke Millett, have hereunto set my hand and seal, this Twentieth day of November, One thousand eight hundred and thirty-seven. RICHARD OKE (l.s.) MILLETT