中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

11 records (took 0.019 seconds)

    MACHINE FOR CURVED,SPECIALLY ROTARY NON-SPHERICAL SURFACES MAKING
    1.
    发明专利
    MACHINE FOR CURVED,SPECIALLY ROTARY NON-SPHERICAL SURFACES MAKING 未知

    公开(公告)号：CS181736B2

    公开(公告)日：1978-03-31

    申请号：CS906873

    申请日：1973-12-28

    Applicant: ESSILOR INT

    Inventor： BETTIOL BRUNO

    IPC: B23B5/36 ,  B23B5/40 ,  B23C3/16 ,  B23Q11/00 ,  B23Q27/00 ,  B23Q35/10 ,  B23Q35/20 ,  B23Q35/44 ,  B24B13/00 ,  B24B13/06 ,  G02C7/04 ,  B23P17/02

    Abstract: A machine for producing concave or convex aspherical surfaces, comprises a blank carrier spindle mounted for rotation about a first axis, a cutting tool mounted for travelling movement in the direction of the second axis and pivotable about a third axis perpendicular to the first two axes, a control cam, and drive means controlled by the said cam and adapted to displace the said cutting tool, in response to the cam, along its travelling axis between two positions, one of which is an advance position and the other a withdrawn position and either of which is a cutting position and the other a position of rest, the axis of rotation of the spindle and the axis of movement of the tool passing through the centre of the aspherical surface to be cut, and wherein the blank carrier spindle is adjustable in a stable axial position in a spindle support, the control cam is fixed, and the cutting tool is carried by a shoe displaceable on a rotating turret, a drive means being disposed between the said shoe and the said fixed control cam.

    3.
    发明专利
    未知

    公开(公告)号：DE2456606A1

    公开(公告)日：1975-06-05

    申请号：DE2456606

    申请日：1974-11-29

    Applicant: ESSILOR INT

    Inventor： BETTIOL BRUNO

    IPC: B23Q35/44 ,  F16H53/04

    Abstract: The invention relates to a variable-profile cam of the kind comprising a cam-surface formed by one of the longitudinal faces of a thin strip extending freely between at least two supports, of which at least one is adjustable transversely in position, in which the thin strip is made of an elastically-deformable material, and the transverse moment of inertia of the strip can vary between the two supports, for example by variation of the width or the thickness of the strip. The invention is particularly applicable to cams for reproducing machines for the production of aspherical surfaces of moulds for contact lenses.

    CAME A PROFIL VARIABLE, NOTAMMENT POUR MACHINE A REPRODUIRE
    5.
    发明专利
    CAME A PROFIL VARIABLE, NOTAMMENT POUR MACHINE A REPRODUIRE 未知

    公开(公告)号：CA1008274A

    公开(公告)日：1977-04-12

    申请号：CA215279

    申请日：1974-12-03

    Applicant: ESSILOR INT

    Inventor： BETTIOL BRUNO

    IPC: B23Q35/44 ,  F16H53/04

    Abstract: The invention relates to a variable-profile cam of the kind comprising a cam-surface formed by one of the longitudinal faces of a thin strip extending freely between at least two supports, of which at least one is adjustable transversely in position, in which the thin strip is made of an elastically-deformable material, and the transverse moment of inertia of the strip can vary between the two supports, for example by variation of the width or the thickness of the strip. The invention is particularly applicable to cams for reproducing machines for the production of aspherical surfaces of moulds for contact lenses.

    MACHINE POUR L'OBTENTION DE SURFACES ASPHERIQUES
    7.
    发明专利
    MACHINE POUR L'OBTENTION DE SURFACES ASPHERIQUES 未知

    公开(公告)号：CA1014381A

    公开(公告)日：1977-07-26

    申请号：CA189123

    申请日：1973-12-28

    Applicant: ESSILOR INT

    Inventor： BETTIOL BRUNO

    IPC: B23B5/36 ,  B23B5/40 ,  B23C3/16 ,  B23Q11/00 ,  B23Q27/00 ,  B23Q35/10 ,  B23Q35/20 ,  B23Q35/44 ,  B24B13/00 ,  B24B13/06

    Abstract: A machine for producing concave or convex aspherical surfaces, comprises a blank carrier spindle mounted for rotation about a first axis, a cutting tool mounted for travelling movement in the direction of the second axis and pivotable about a third axis perpendicular to the first two axes, a control cam, and drive means controlled by the said cam and adapted to displace the said cutting tool, in response to the cam, along its travelling axis between two positions, one of which is an advance position and the other a withdrawn position and either of which is a cutting position and the other a position of rest, the axis of rotation of the spindle and the axis of movement of the tool passing through the centre of the aspherical surface to be cut, and wherein the blank carrier spindle is adjustable in a stable axial position in a spindle support, the control cam is fixed, and the cutting tool is carried by a shoe displaceable on a rotating turret, a drive means being disposed between the said shoe and the said fixed control cam.

    MACHINE FOR PRODUCING ASPHERICAL SURFACES
    8.
    发明专利
    MACHINE FOR PRODUCING ASPHERICAL SURFACES 未知

    公开(公告)号：AU6459374A

    公开(公告)日：1975-07-17

    申请号：AU6459374

    申请日：1974-01-17

    Applicant: ESSILOR INT

    Inventor： BETTIOL BRUNO

    IPC: B23B5/36 ,  B23B5/40 ,  B23C3/16 ,  B23Q11/00 ,  B23Q27/00 ,  B23Q35/10 ,  B23Q35/20 ,  B23Q35/44 ,  B24B13/00 ,  B24B13/06

    Abstract: A machine for producing concave or convex aspherical surfaces, comprises a blank carrier spindle mounted for rotation about a first axis, a cutting tool mounted for travelling movement in the direction of the second axis and pivotable about a third axis perpendicular to the first two axes, a control cam, and drive means controlled by the said cam and adapted to displace the said cutting tool, in response to the cam, along its travelling axis between two positions, one of which is an advance position and the other a withdrawn position and either of which is a cutting position and the other a position of rest, the axis of rotation of the spindle and the axis of movement of the tool passing through the centre of the aspherical surface to be cut, and wherein the blank carrier spindle is adjustable in a stable axial position in a spindle support, the control cam is fixed, and the cutting tool is carried by a shoe displaceable on a rotating turret, a drive means being disposed between the said shoe and the said fixed control cam.

Patent Agency Ranking