Press for use in the molding of parts

Claim 2

In a press for applying pressure to an object moving through the press from one end thereof to the other, back-up means, a plurality of rollers located in spaced-apart relationship with said back-up means, said back-up means and said plurality of rollers being adapted to receive therebetween and apply pressure to an object positioned between said rollers and said back-up means, means associated with a group of said rollers located adjacent said one end of said press to move said group rollers between first and second positions, in aid first position said group of rollers being adapted along with others of said plurality of rollers and in cooperation with said back-up means to apply pressure to an object located between said rollers and said back-up means, in said second position said group of rollers being located further away from said back-up means than in said first position thereof, whereby an object to which pressure is to be applied by others of said plurality of rollers may be loaded into said press, said means associated with said group of rollers comprising a frame including generally parallel arms terminating in a cross-member joining said arms, means for moving said frame, a plurality of elongated connectors pivotally connected to said arms adjacent one end thereof and to cams adjacent the other end thereof, each individual member of said group of rollers being connected to one such cam, and surfaces engageable with said cams, said cams turning relative to said surfaces upon movement of said frame between two positions, in one of said positions said group of rollers being in said first position and in the other of said positions, said group of rollers being in said second position.

Claim 3

The press of claim 1 wherein said rollers have axles eccentrically journalled in said cams.

Claim 4

In a press for applying pressure to an object moving through the press from one end thereof to the other, back-up means, a plurality of rollers located in spaced-apart relationship with said back-up means, said back-up means and said plurality of rollers being adapted to receive therebetween and Apply pressure to an object positioned between said rollers and said back-up means, means associated with a group of said rollers located adjacent said one end of said press to move said group of rollers between first and second positions, in said first position said group of rollers being adapted along with others of said plurality of rollers and in cooperation with said back-up means to apply pressure to an object located between said rollers and said back-up means, in said second position said group of rollers being located further away from said back-up means than in said first position thereof whereby an object to which pressure is to be applied by others of said plurality of rollers may be loaded into the press, said means associated with said group of rollers comprising a frame including generally parallel arms terminating in a cross-member joining said arms, means for moving said frame, a plurality of elongated connectors pivotally connected to said arms adjacent one end thereof and to cams adjacent the other end thereof, each individual member of said group of rollers being connected to one such cam, said rollers having axles eccentrically journalled in said cams, surfaces engageable with said cams, said cams turning relative to said surfaces upon movement of said frame between two positions, in one of said latter positions said group of rollers being in said first position and in the other of said latter positions, said group of rollers being in said second position, said axles being additionally journalled in blocks, and means resiliently mounting said blocks on said press, said axles moving against the resiliency of said means upon turning of said cams as the frame moves from the first of the two positions to the second of the two positions.

Claim 5

In a press for applying pressure to an object moving through the press from one end thereof to the other, back-up means, a plurality of rollers located in spaced-apart relationship with said back-up means, said back-up means and said plurality of rollers being adapted to receive therebetween and Apply pressure to an object positioned between said rollers and said back-up means, means associated with a group of said rollers located adjacent said one end of said press to move said group of rollers between first and second positions, in said first position said group of rollers being adapted along with others of said plurality of rollers and in cooperation with said back-up means to apply pressure to an object located between said rollers and said back-up means, in said second position said group of rollers being located further away from said back-up means than in said first position thereof whereby an object to which pressure is to be applied by others of said plurality of rollers may be loaded into the press, said means associated with said group of rollers comprising a frame including generally parallel arms terminating in a cross-member joining said arms, means for moving said frame, a plurality of elongated connectors pivotally connected to said arms adjacent one end thereof and to cams adjacent the other end thereof, each individual member of said group of rollers being connected to one such cam, said rollers having axles eccentrically journalled in said cams, surfaces engageable with said cams, said cams turning relative to said surfaces upon movement of said frame between two positions, in one of said latter positions said group of rollers being in said first position and in the other of said latter positions, said group of rollers being in said second position, said axles being additionally journalled in blocks, and means resiliently mounting said blocks on said press, said axles moving against the resiliency of said means upon turning of said cams as the frame moves from the first of the two positions to the second of the two positions.