Maschinenfabrik Rieter Ag

Urs Stahli

Robert Demuth

Paul Staheli

Peter Fritzsche

Marcel Bosshard

Fritz Knabenhaus

A card wherein at least the pre-carding zone, located between the licker-in and the revolving flats is subdivided into a multiplicity of angular ranges with respect to the axis of the main cylinder, all of which have a unified angular extension or an integral multiple of this unified angular extension. In this zone, or in several of these zones on both sides of the main cylinder there are exchangeable fastening plates, lying opposite to each other in pairs, which can be fitted to the card shells, whereby the angular extension of the fastening plates around the axis of the main cylinder corresponds to the unified angular extension or to an integral multiple of this angular extension. Each pair of fastening plates with the component parts fitted thereto forms an exchangeable, pre-adjusted module whereby the components comprise groups or combinations of the same or different pieces of equipment of a card and each has an angular extension around the axis of the main cylinder which corresponds to the unified angular extension or to an integral multiple of this unified angular extension.

Carding machine with modular subdivision of the carding zones

An arrangement for pneumatically transporting fiber material flocks through respective chutes to individual carding machines includes a duct which bounds an internal passage that communicates with the chutes, the chutes extending downwardly from the duct. A plurality of control elements is arranged in the passage, respective two of such control elements being situated between each adjacent two of the chutes. Each of the control elements has a substantially plate-shaped control member which is pivotally mounted at the bottom region of the duct, and a block member that extends substantially at a right angle to the control member remotely from the pivot axis and extends toward and into the respective chute. The control element can be pivoted into and arrested in any selected pivoted position, including a closed position in which the block member thereof substantially completely prevents the flow of the transporting medium past the same. The transporting medium carrying the flocks is introduced into either one or into both of the ends of the passage, and the positions of the control elements are so adjusted as to obtain flow speeds upstream of the respective chutes in the range substantially between 2 and 10 m/s; the transporting medium volume can also be adjusted toward this goal. Those of the control elements which are situated between two adjacent chutes may be mounted on a common pivot axle.

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Turbenthal, Switzerland

Urs Stahli