Seal

Claim 2

Apparatus for providing a seal between a housing and a rotatable shaft, comprising: a circular first sealing means supported on said shaft for rotation therewith, said first sealing means having a radially outwardly facing peripheral groove; a second sealing means supported by said housing, said second sealing means having an annular portion surrounding said first sealing means and protruding radially inwardly into said groove, with the surfaces of said protruding portion being spaced relative to the adjacent surfaces of said groove; and circular third sealing means supported by and rotatable with said first sealing means, said third sealing means in frictional contact with the said protruding portion of said second sealing means.

Claim 3

The apparatus as claimed in claim 1 wherein said second sealing means is further characterized as comprising an intermediate support member in sealing engagement at one end with said housing, the other end of said support member terminating in a radially inwardly extending flange, the inner edge of which flange forms a circular opening having a diameter greater than that of the exterior diameter of said first sealing means, said second sealing means further including annular ring means in sealing engagement along its outer edge with the inner edge forming said circular opening, said annular ring means including the annular portion of said second sealing means which protrudes into said groove.

Claim 4

The apparatus as claimed in claim 1 wherein said first sealing means is provided with a generally U-shaped cross-section, including a circular base adapted for sealing engagement with said shaft and a pair of axially spaced oppositely disposed flanges extending radially outwardly from said base.

Claim 5

The apparatus as claimed in claim 3 wherein said base is provided with an inner groove disposed oppositely to said radially outwardly facing peripheral groove, and means seated in said inner groove for providing a seal between said base and said shaft.

Claim 6

The apparatus as claimed in claim 3 wherein said first circular sealing means is further characterized as comprising an assembly of two abutting elements, each of said elements having a generally L-shaped cross-section.

Claim 7

The apparatus as claimed in claim 3 wherein said flanges are provided with opposed annular faces having circular grooves therein, the said third circular sealing means being seated in and protruding axially outwardly from said circular grooves.

Claim 8

The apparatus as claimed in claim 6 wherein the bottom of each of said circular grooves is inclined relative to the axis of said first sealing means, and wherein the third circular sealing means seated in each of the said circular grooves has a radial thickness which is less than the radial width of said circular groove and an inclined inner edge which is in face-to-face contAct with said inclined bottom, the outer edge of said third circular sealing means being in frictional contact with the said protruding portion of said second sealing means.

Claim 9

The apparatus as claimed in claim 1 wherein said shaft is journalled for rotation in an eccentric sleeve which is in turn journalled for rotation in said housing, the annular portion of said second sealing means having sufficient radial width to accommodate movement of said third sealing means occasioned by rotational adjustment of said eccentric sleeve.

Claim 10

The apparatus as claimed in claim 2 wherein said shaft is journalled for rotation about a first axis in an eccentric sleeve, and said sleeve is in turn rotatably adjustable in said housing about a second axis which is parallel to said first axis, the said annular ring means also having an eccentric configuration with its inner edge concentric with said first axis and its outer edge and the inner edge of the radially inwardly extending flange of said support member being concentric with said second axis, and means for connecting said annular ring means to said eccentric sleeve, whereby rotative adjustment of said eccentric sleeve relative to said housing will result in corresponding rotative adjustment being imparted to said annular ring means relative to said support member.

Claim 11

For use in combination with a roll shaft journalled for rotation in a roll housing, with one end of the roll shaft protruding from the housing to axially receive a roll removably mounted thereon, and with roll parting adjustment means assocaited with the roll housing for adjusting the roll shaft, apparatus for providing a seal between the roll shaft and the roll housing, comprising: a circular flinger assembly mounted on the roll shaft for rotation therewith, said flinger assembly having an exterior groove formed by a base in sealing engagement with the roll shaft and opposed axially spaced flanges extending radially outwardly from said base; a wear ring having axially spaced inner and outer faces and radially spaced inner and outer edges, intermediate means in sealing engagement with the roll housing and the outer edge of said wear ring for supporting said wear ring in an operative position in said groove, the wear ring when thus supported having its inner edge spaced radially from said base and its inner and outer faces spaced axially from said flanges; and seal rings supported by and protruding from said flanges into engagement with the inner and outer faces of said wear ring.

Claim 12

For use in combination with a roll shaft journalled for rotation in a roll housing, with one end of the roll shaft protruding from the housing to axially receive a roll removably mounted thereon, and with roll parting adjustment means assocaited with the roll housing for adjusting the roll shaft, apparatus for providing a seal between the roll shaft and the roll housing, comprising: a circular flinger assembly mounted on the roll shaft for rotation therewith, said flinger assembly having an exterior groove formed by a base in sealing engagement with the roll shaft and opposed axially spaced flanges extending radially outwardly from said base; a wear ring having axially spaced inner and outer faces and radially spaced inner and outer edges, intermediate means in sealing engagement with the roll housing and the outer edge of said wear ring for supporting said wear ring in an operative position in said groove, the wear ring when thus supported having its inner edge spaced radially from said base and its inner and outer faces spaced axially from said flanges; and seal rings supported by and protruding from said flanges into engagement with the inner and outer faces of said wear ring.