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US 4,044,669 AGranted
Rotary screen mounting device
AssigneeAlmedahls Aktiebolag
InventorHarald Johan Luther
Life of this patent
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AssigneeAlmedahls Aktiebolag
InventorHarald Johan Luther
Estimating the term…
This invention relates to a device for releasably mounting thin walled cylindrical members in a machine involving rotary working operations, such as rotary screens used in rotary printing presses. The device comprises cylindrical end members adapted to be mounted on the rotary machine and adapted to fit within and engage inner peripheral flanges at the ends of the cylinder. The end members comprise an annular slot which contains a ring member expandible by suitable pressure means. Each ring member contains an outer annular groove adapted to engage the inner flange at each end of the cylinder upon expansion of the ring member thereby securing the ends of the cylinder on each end member. The ring member can be a steel band expandable by the action of a pressurized air tube mounted in the annular slot, or alternatively, the ring member can be an outer wedge ring disposed in the annular slot with an inner wedge ring in the slot which can be axially moved and thus radially moving the outer wedge ring. With the cylinder mounted between the end members, it is capable of being stretched in an axial direction.
A device for releasably mounting a thin walled cylindrical member in a rotary machine, whereby said cylindrical member can be installed and maintained in an axially stretched condition and used in rotary working operations, comprising a pair of cylindrical mounting members disposed in spaced axial alignment in said rotary machine, each of said mounting members comprising an annular outer peripheral slot, a radially outwardly expansible ring member containing an annular outer peripheral groove disposed in said slot within the outer periphery of each said mounting member, annular expansion means disposed in said slot for outwardly expanding said ring member, said thin walled member comprising a peripheral flange disposed on the inner annular surface of each end thereof, said peripheral flange of said thin walled member engaging said groove of said ring member and being retained therein upon expansion of said ring member, whereby when both of said flanges are engaged and retained in said respective groove members, said thin walled member can be axially stretched and maintained in an axially stretched condition for use in rotary working operations.
Dependencies are inferred from the claim text.