US 319338 A
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Description (OCR text may contain errors)
0. O. SOUTHWELL.
' DENTAL BREATH GUARD.
Pate (Qggune 2, 1885 WZ/fiessesj STATES N ITE :l
DENTAL BREATH GUARD.
SPECIFICATION forming part of Letters Patent No. 319,338, dated June 2,1885.
Application tilc(l September 17, 1884. (No model.)
T0 or whom it may concern: I
Be it known that I, CHARLES 0. SOUTH- WELL, of Milwaukee, in the county of Milwaukee, and in the State of Wisconsin, have invented certain new and useful Improvements in Breath-Guards for Dentists Use; and I do hereby declare that the following is a full, clear, and exact description thereof.
My invention relates to breath-guards for dentists use; and it consists in peculiarities of construction, as will be fully described hereinafter.
In the drawings, Figure l is a perspective view showing my device in position for use. Fig. 2 is a perspective view of the device detached from the face. Fig. 31s alike view of the supporting-plate, and Fig. 4 shows in perspective also one form of the breath-guard.
A is the supportingplate of my device, which is bent rearward and has its upper edge concaved, so as to conform to the parts of the face on which it is to be applied-that is, the upper lip and the base of the nostrils. The ends are bent in and under to form the hooks a a, wherein the upper edge of the rubber dam B is passed, the plate A being thus held in posi tion, as desired.
In the center of thesupporting-plate A, and made integral with the same by punching, or fastened in any suitable manner on its outer face, is the staple (1, wherein is received the lug c, that is hinged or otherwise attached to the inner edge of the breath-guard O. This latter may be made of various forms, according to the location of the tooth being operated upon, and consequently according to the position the operator has to take in relation to it, and also to the direction of the exhaled breath of the sitter. The guard is for that reason interchangeable, its connection with the supporting-plate adapting it to be readily removed and replaced to suit the circumstances sired.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-
1. In a dental breath-guard, the combination of a support adapted to fit the upper lip with a guard hinged thereto, so as to be capable of adjustment, as described.
2. The combination of the plate A, having staple a and fastenings a e, the breath-guard 0, having the lug c, and the band D, substantially as shown and described, and for the purpose set forth.
8. In combination with the rubber dam B and fastenings, the supporting-plate A, having hooks a a, staple a, and fastenings a 0?, the breathguard 0, having the lug c, and the band D, substantially as shown and described, and for the purpose set forth.
In testimony that I claim the foregoing I have hereunto set my hand, at Milwaukee, in the county of Milwaukee and State of Wisconsin, in the presence of two witnesses.
CH AS. 0. SOUTHWELL. \Vitncsses:
S. S. STOUT,
H. J. FORSYTHE.