DE358578C - Device for grinding two facets at an angle to one another on oval glasses with a curved shape (menisci) - Google Patents
Device for grinding two facets at an angle to one another on oval glasses with a curved shape (menisci)Info
- Publication number
- DE358578C DE358578C DESCH54844D DESC054844D DE358578C DE 358578 C DE358578 C DE 358578C DE SCH54844 D DESCH54844 D DE SCH54844D DE SC054844 D DESC054844 D DE SC054844D DE 358578 C DE358578 C DE 358578C
- Authority
- DE
- Germany
- Prior art keywords
- grinding
- angle
- facets
- menisci
- curved shape
- Prior art date
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
- B24B9/14—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Description
Vorrichtung zum Anschleifen zweier im Winkel zueinander liegender Fassetten an ovale Brillengläser durchgebogener Form (Blenisken). Durch das Hauptpatent 356476 wird eine Vorrichtung zum Anschleifen zweier im Winkel zueinander liegender Fassetten an ovale Brillengläser durchgebogener Form (Menisken) unter Schutz gestellt, bei welcher als Schablone eine der Schnittlinie der beiden Fassetten (Schneide) kongruente Linienschablone Verwendung findet, die mit einem zur Schleifebene parallelen, also zur Schablonenebene schrägen Anschlag zusammenwirkt, längs dessen der Berührungspunkt der Schablone beim Umlauf hin und her wandert.Device for grinding two at an angle to each other Facets on oval lenses of curved shape (blenisks). By the main patent 356476 is a device for grinding two at an angle to each other Facets on oval lenses of curved shape (menisci) placed under protection, in which one of the cutting line of the two facets (cutting edge) is used as a template congruent line template is used, which with a parallel to the grinding plane, so cooperates to the stencil plane oblique stop, along which the point of contact the stencil moves back and forth as it rotates.
Um bei solchen Vorrichtungen ein vollständig einwandfreies Anschleifen zu erzielen, insbesondere aber bei solchen Vorrichtungen, bei denen die Annäherungsbewegung zwischen Werkstück, d. h. anzuschleifendem Glase, und Werkzeug, nämlich Schleifstein, durch Schwingung des Werkstückhalters erfolgt, ist es nötig, die zur Schleifebene parallele Anschlagfläche für die kongruente Schablone in der zur Wanderrichtung des Berührungspunktes senkrechten Ebene zu krümmen. Diese Krümmung ist kongruent der Krümmung des Schleifsteins und ist dieselbe aus der Zeichnung zu erkennen. Die KrÜmmungsradien x, y und z sind die gleichen.In order to achieve completely perfect grinding with such devices, but especially with those devices in which the approach movement between the workpiece, ie the glass to be ground, and the tool, namely the grindstone, occurs through vibration of the workpiece holder, it is necessary to use the stop surface parallel to the grinding plane for to bend the congruent template in the plane perpendicular to the direction of travel of the point of contact. This curvature is congruent to the curvature of the grindstone and can be seen from the drawing. The radii of curvature x, y and z are the same.
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH54844D DE358578C (en) | 1919-03-03 | Device for grinding two facets at an angle to one another on oval glasses with a curved shape (menisci) | |
FR519401A FR519401A (en) | 1919-03-03 | 1920-07-08 | Device for cutting two facets in oval glasses for spectacles, etc. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH54844D DE358578C (en) | 1919-03-03 | Device for grinding two facets at an angle to one another on oval glasses with a curved shape (menisci) | |
DE519401X | 1919-03-03 | ||
DESCH54637D DE356476C (en) | 1919-03-03 | 1919-03-04 | Device for grinding two facets at an angle to one another on oval glasses with a curved shape (menisci) |
GB19698/20A GB147708A (en) | 1919-03-03 | 1920-07-08 | Improvements in or relating to a machine for grinding bevels on meniscus lenses |
Publications (1)
Publication Number | Publication Date |
---|---|
DE358578C true DE358578C (en) | 1922-09-12 |
Family
ID=27436150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DESCH54844D Expired DE358578C (en) | 1919-03-03 | Device for grinding two facets at an angle to one another on oval glasses with a curved shape (menisci) |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE358578C (en) |
FR (1) | FR519401A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2877249B1 (en) * | 2004-10-28 | 2007-01-05 | Xavier Carriou | GRINDING PROCESS FOR THE RETOUCHING OF PRE-SIZED GLASSES |
-
0
- DE DESCH54844D patent/DE358578C/en not_active Expired
-
1920
- 1920-07-08 FR FR519401A patent/FR519401A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR519401A (en) | 1921-06-09 |
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