Degussa Aktiengesellschaft

Patentverwertungs Kg

Cvt Verwaltungs Gmbh & Co.

Georg Kell

Rolf Schuster

Peter Wagner

Johannes Heinrich

Manfred Maier

Dirk Weitzel

Wolfgang Heise

Klaus Sohnge

Gert Schonnenbeck

Rocker link elements (32, 33), which are located in pairs for connection of plate links (40), have end facing friction surfaces (43) which are essentially part spherical, for cooperation with essentially part spherical cone surfaces of cone disks (3, 4, 7, 8, 24-27). A base or central surface line is located approximately at a radial position of engagement with the end facing surfaces (43) of the rocker elements (32, 33) with the cone surfaces of the cones when the transmission is set for a transmission ratio of 1:1. To prevent engagement of edge regions of the rocker link elements with the respective cone disks, surface lines (54, 55) located radially outwardly, or inwardly, respectively, from a central surface line (49, 53), are inclined by an angle (.delta.), with respect to the base or central surface line. The angle of inclination (.delta.) increases, in positive or negative direction, respectively, starting at said central or base surface line about the intersection with the rocking surfaces (41, 42) in the direction to the cone surface (44) of the respective cone in engagement with the respective rocker link element. The engagement surfaces between the rocker link elements and the cone surfaces will thereby be protected by material of the rocker link elements adjacent the engagement location.

Plate link chain for a continuously variable, movable cone-type

A holding element for heating bars in industrial furnaces must be as flexible as possible so that it can accommodate the thermal expansion of the heating bars. Circular rings or circular-ring sectors provided with bores and made from a flexible graphite laminate plate are used for this purpose.

Graphite holding elements for heating bars in industrial furnaces

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Frankfurt am Main, Germany

Georg Kell