Apparatus for dry-cleaning and degreasing of fibrous material

Claim 1

AN APPARATUS FOR CLEANING FIBROUS MATERIAL WITH A DRY CLEANING AGENT COMPRISING TWO BANKS OF SPACED ROTATABLE ROLLS HAVING SMOOTH AND HIGHLY POLISHED SURFACES, THE ROLLS FORMING ONE BANK BEING ADAPTED TO ENGAGE COOPERATIVELY THE ROLLS FORMING THE OTHER BANK, A PLURALITY OF PAIRS OF SAID COOPERATIVELY ENGAGING ROLLS BEING ARRANGED AT DIFFERENT LEVELS, SAID COOPERATIVELY ENGAGING ROLLS BEING ADAPTED TO ENGAGE OPPOSITE SURFACES OF A LAYER OF FIBROUS MATERIAL AND TO ADVANCE THE LAYER THROUGH THE NIPS FORMED BETWEEN COOPERATIVELY ENGAGING ROLLS, EACH PAIR OF COOPERATIVELY ENGAGING ROLLS ARRANGED AT AN RELATIVELY HIGHER LEVEL BENG ADAPTED TO FEED SAID LAYER DIRECTLY INTO THE NIP FORMED BETWEEN A PAIR OF COOPERATIVELY ENGAGING ROLLS ARRANGED IMMEDIATELY BELOW, A FEEDING DEVICE ADAPTED TO FEED FIBEROUS MATERIAL TO THE NIP FORMED BETWEEN A PAIR OF COOPERATIVELY ENGAGING ROLLS ARRANGED ABOVE THE LEVEL OF AT LEAST ONE OTHER PAIR OF COOPERATIVELY ENGAGING ROLLS, A WETTING DEVICE ADAPTED TO SUPPLY CLEANING AGENT TO THE FIBROUS MATERIAL PRIOR TO ITS PASSAGE THROUGH SAID NIP, AND OPERATING MEANS FOR THE ROOLS OF BOTH BANKS COMPRISEING GEAR MEANS FOR POSITIVELY ROTATING EACH OF THE ROLLS CONSTITUTING A PAIR OF COOPERATIVELY ENGAGING ROLLS AT UNEQUAL SURFACE SPEEDS FOR EXERTING A RUBBING ACTION UPON THE LAYER OF FIBROUS MATERIAL ARRANGED THEREBETWEEN.

Claim 2

AN APPARATUS FOR CLEANING FIBROUS MATERIAL WITH A DRY CLEANING AGENT COMPRISING TWO BANKS OF SPACED ROTATABLE ROLLS HAVING SMOOTH AND HIGHLY POLISHED SURFACES, THE ROLLS FORMING ONE BANK BEING ADAPTED TO ENGAGE COOPERATIVELY THE ROLLS FORMING THE OTHER BANK, A PLURALITY OF PAIRS OF SAID COOPERATIVELY ENGAGING ROLLS BEING ARRANGED AT DIFFERENT LEVELS, SAID COOPERATIVELY ENGAGING ROLLS BEING ADAPTED TO ENGAGE OPPOSITE SURFACES OF A LAYER OF FIBROUS MATERIAL AND TO ADVANCE THE LAYER THROUGH THE NIPS FORMED BETWEEN COOPERATIVELY ENGAGING ROLLS, EACH PAIR OF COOPERATIVELY ENGAGING ROLLS ARRANGED AT AN RELATIVELY HIGHER LEVEL BENG ADAPTED TO FEED SAID LAYER DIRECTLY INTO THE NIP FORMED BETWEEN A PAIR OF COOPERATIVELY ENGAGING ROLLS ARRANGED IMMEDIATELY BELOW, A FEEDING DEVICE ADAPTED TO FEED FIBEROUS MATERIAL TO THE NIP FORMED BETWEEN A PAIR OF COOPERATIVELY ENGAGING ROLLS ARRANGED ABOVE THE LEVEL OF AT LEAST ONE OTHER PAIR OF COOPERATIVELY ENGAGING ROLLS, A WETTING DEVICE ADAPTED TO SUPPLY CLEANING AGENT TO THE FIBROUS MATERIAL PRIOR TO ITS PASSAGE THROUGH SAID NIP, AND OPERATING MEANS FOR THE ROOLS OF BOTH BANKS COMPRISEING GEAR MEANS FOR POSITIVELY ROTATING EACH OF THE ROLLS CONSTITUTING A PAIR OF COOPERATIVELY ENGAGING ROLLS AT UNEQUAL SURFACE SPEEDS FOR EXERTING A RUBBING ACTION UPON THE LAYER OF FIBROUS MATERIAL ARRANGED THEREBETWEEN.