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
Application number
DESCH54844D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Publication date
Priority to DESCH54844D priority Critical patent/DE358578C/en
Priority claimed from DESCH54637D external-priority patent/DE356476C/en
Priority to FR519401A priority patent/FR519401A/en
Priority claimed from GB19698/20A external-priority patent/GB147708A/en
Application granted granted Critical
Publication of DE358578C publication Critical patent/DE358578C/en
Expired legal-status Critical Current

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)

PATENT-ANSpRUcH: Vorrichtung zum Anschleifen zweier im Winkel zueinander liegender Fassetten an ovale Brillengläser durchgebogener Form (Menisken) nach Patent 356476, dadurch gekennzeichnet, däß bei Vorrichtungen, bei denen die Annäherungsbewegung zwischen Werkstück und Werkzeug durch Schwingung des Werkstückhalters erfolgt, die zur Schleifebene parallele Anschlagfläche für die kongruente Schablone in der zur Wan:derrichtungg des Berührungspunktes senkrechten Ebene eine der Schleifebene kongruente Krümmung aufweist. Hierzu i Blatt Zeichnungen.PATENT CLAIM: Device for grinding two facets lying at an angle to one another on oval spectacle lenses with a curved shape (menisci) according to Patent 356476, characterized in that in devices in which the approach movement between workpiece and tool is carried out by vibration of the workpiece holder, which is parallel to the grinding plane Stop surface for the congruent template in the plane perpendicular to the Wan: derrichtungg of the point of contact has a curvature congruent to the grinding plane. For this purpose i sheet of drawings.
DESCH54844D 1919-03-03 Device for grinding two facets at an angle to one another on oval glasses with a curved shape (menisci) Expired DE358578C (en)

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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
FR519401A (en) 1921-06-09

Similar Documents

Publication Publication Date Title
DE154777T1 (en) RAIL HEAD REPROFILATION MACHINE ON THE LINE FOR AT LEAST ONE RAIL OF A RAILWAY.
US1148303A (en) Device for sharpening shears.
DE358578C (en) Device for grinding two facets at an angle to one another on oval glasses with a curved shape (menisci)
DE102009036290A1 (en) Straight and round circumferential surfaces finish processing method for frame-like housing part of digital camera, involves measuring pressing force of workpiece during processing, and controlling force according to set points requirement
DE393681C (en) Process for grinding and polishing glass plates
DE407033C (en) Device for grinding and honing the cutting edges of reamers or the like.
DE839002C (en) Device for sharpening the grinding wheel of a grinding machine
US2181185A (en) Automatic cutting device
DE355008C (en) Process for sanding profile surfaces on tool steels or the like.
DE713786C (en) Device for grinding the rake angle on dies
DE943752C (en) Method and device for grinding plane-parallel surfaces
DE735509C (en) Werkstueckhilfschaltstueck for the correct angle grinding of the surfaces of optical prisms
DE379803C (en) Glass stacking device for removing pitch residues u. Like. Of optical glasses
DE102020000870A1 (en) Cross joint device
DE404230C (en) Device for practicing the method of sharpening whetstones
DE902443C (en) Method and device for the production of snap gauges
DE582333C (en) Machine for the production of sewing machine needles
DE523903C (en) Sharpening double-edged razor blades
DE807999C (en) Method and device for belt sanding of wooden components, in particular rounded furniture corners o.
DE826416C (en) Puller for razors etc.
DE551893C (en) Device for checking the bevel of twist drills
DE577495C (en) Process for pre-processing the cutting edges of steel strips for thin razor blades
DE440314C (en) Machine for grinding round, non-round and conical bodies
DE445273C (en) Crane for storage areas
DE904269C (en) Device for pulling straight razors