US778981A - Dental mouth-mirror. - Google Patents

Dental mouth-mirror. Download PDF

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Publication number
US778981A
US778981A US18177903A US1903181779A US778981A US 778981 A US778981 A US 778981A US 18177903 A US18177903 A US 18177903A US 1903181779 A US1903181779 A US 1903181779A US 778981 A US778981 A US 778981A
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United States
Prior art keywords
mirror
cement
groove
dental mouth
disks
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US18177903A
Inventor
Alfred Littauer
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Individual
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Individual
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Publication date
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Priority to US18177903A priority Critical patent/US778981A/en
Application granted granted Critical
Publication of US778981A publication Critical patent/US778981A/en
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Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/02—Rear-view mirror arrangements
    • B60R1/08—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors
    • B60R1/081—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors avoiding blind spots, e.g. by using a side-by-side association of mirrors

Definitions

  • Figure 1 is a transverse sectional view of Fig. 2 on the line2 2
  • Fig. 2 is a plan view of the mirror with the handle shown broken ofl.
  • the device comprises two oppositely-disposed disks of glass silvered on one side in the usual manner, one of the disks being flat to constitute a plane mirror A for one side and the other being slightly concave to constitute an enlarging-mirror B, as indicated in the drawings.
  • the two mirrors are preferably of the same size and shape cement C, which conveniently extends very close to the edges of the disks.
  • the kind of cement used is immaterial, so long as it serves to unite and hold the two disks firmly together and is sufiiciently dense not to have a tendency to absorb moisture.
  • the construction being such that the double mirror may be readily lnserted and removed from the holding frame combination with a peripheral groove aroun and when inserted will be securely held with either side up, as maybe desired.
  • the groove may be formed by milling, or the quantity of cement used to form the layer 0 may be proportioned so as to leave a crevicebetween the mirrors. In either case the crevice or groove formed will serve the purpose of providing a seat for the spring members D.
  • the latter represent only one of many possible forms of holding-frames, and it is preferred by reason of its simplicity and the facility whereby the mirror may be reversed or removed.
  • said layer of cement and a holding-frame adapted to seat in said groove.

Description

'PATENTED JAILS', 1905.
A. LITTAUER. DENTAL MOUTH MIRROR. APILIOATION FILED NOV.19,1903.
mm e5 T and are placed back toback'and permanently united by means of a layer or mass of hard 9 UNITED STATES- PATENT Patented January 3, 1905.
rrrcn.
DENTAL mouTH-mmnon.
SPECIFICATION forming part of Letters Patent No. 778,981, dated January 3, 1905.
Application filed November 19, 1903. Serial No. 181,779. i
To all whom it mag concern.-
Be it known that I, /ALFRED LITTAUER, of
mirror, which is simple in construction, cheapv of manufacture, and capable of being readily cleansed or otherwise manipulated.
Referring to the accompanying one sheet of drawings, which forms a part of this specification, Figure 1 is a transverse sectional view of Fig. 2 on the line2 2, and Fig. 2 is a plan view of the mirror with the handle shown broken ofl.
In its preferred form the device comprises two oppositely-disposed disks of glass silvered on one side in the usual manner, one of the disks being flat to constitute a plane mirror A for one side and the other being slightly concave to constitute an enlarging-mirror B, as indicated in the drawings. The two mirrors are preferably of the same size and shape cement C, which conveniently extends very close to the edges of the disks. The kind of cement used is immaterial, so long as it serves to unite and hold the two disks firmly together and is sufiiciently dense not to have a tendency to absorb moisture. The double mirror as thus formed may be used as a pocketmirror without a handle, if desired; but for convenient use as a dental instrument I form a groove around the edge of the layer of cement and provide, a pair of clamping members D, adapted to fit in the groove and extend more than half-way around the disks, as
indicated in Fig. 2, the construction being such that the double mirror may be readily lnserted and removed from the holding frame combination with a peripheral groove aroun and when inserted will be securely held with either side up, as maybe desired. The groove may be formed by milling, or the quantity of cement used to form the layer 0 may be proportioned so as to leave a crevicebetween the mirrors. In either case the crevice or groove formed will serve the purpose of providing a seat for the spring members D. The latter, however, represent only one of many possible forms of holding-frames, and it is preferred by reason of its simplicity and the facility whereby the mirror may be reversed or removed.
' It is to be understood that variations may be made in the form or shape of the double mirror above described and that the groove may be formed in the edges of the glass disks as well as in the cement or'that the holdingframe may be extended to entirely surround the mirrors, all without departing from the spirit and scope of my invention.
Having described my invention, what l claim is- 1. As a new article of manufactuiea double mirror comprising single mirrors of substantially the same size and contour placed back to back and united by an intermediate layer of cement disposed between them, the peripheral edge of said double mirror being formed to receive a holding-frame.
2. Asa new article of manufacture, a double mirror comprising single mirrors placed back to back and united by an intermediate layer of cement disposed between them, in
said layer of cement and a holding-frame adapted to seat in said groove.
In testimony whereof I have signed my name, in the presence of two subscribing witnesses, this 13th day of November, 1903.
ALFRED LITTAUER.
Witnesses:
GUs'rAvF. Rrorrrnn, H. G. KIMBALL.
US18177903A 1903-11-19 1903-11-19 Dental mouth-mirror. Expired - Lifetime US778981A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US18177903A US778981A (en) 1903-11-19 1903-11-19 Dental mouth-mirror.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18177903A US778981A (en) 1903-11-19 1903-11-19 Dental mouth-mirror.

Publications (1)

Publication Number Publication Date
US778981A true US778981A (en) 1905-01-03

Family

ID=2847465

Family Applications (1)

Application Number Title Priority Date Filing Date
US18177903A Expired - Lifetime US778981A (en) 1903-11-19 1903-11-19 Dental mouth-mirror.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986000600A1 (en) * 1984-07-02 1986-01-30 Janet Strnad Magnetic cosmetic case

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986000600A1 (en) * 1984-07-02 1986-01-30 Janet Strnad Magnetic cosmetic case

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