Low temperature process of dry cleaning textiles

Claim 1

IN A PROCESS OF DRY CLEANING GARMENTS AND/OR TEXTILE MATERIALS WITH AN ORGANIC SOLVENT HAVING A LATENT HEAT OF VAPORIZATION LESS THAN THAT OF WATER, A LOW TEMPERATURE METHOD OF REMOVING SAID SOLVENT FROM SAID MATERIALS, COMPRISING THE STEPS OF DISPOSING THE SOLVENT LADENED MATERIALS IN A SUBSTANTIALLY VAPOR-TIGHT ENCLOSURE, ENCLOSING A MASS OF SOLID ADSORBENT WHICH SELECTS AN ORGANIC SOLVENT IN PREFERENCE TO WATER WITHIN A PORTION OF A CONFINED CHANNEL WHOSE OPPOSITE ENDS ARE JOINED TO SPACEDAPART PORTIONS OF SAID ENCLOSURE TO FORM A CLOSED SUBSTANTIALLY GAS-TIGHT CIRCUIT, CYCLICALLY PASSING THE GAS IN SAID CIRCUIT FROM THE ENCLOSURE THROUGH THE ADSORBENT AND BACK TO THE ENCLOSURE UNTIL THE MATERIALS ARE RELATIVELY DRY, THE CIRCULATION OF GAS IN THE CIRCUIT THROUGH THE ENCLOSURE INCREASING THE RATE OF EVAPORATION OF SOLVENT FROM THE MATERIALS THEREIN AND THEREBY REDUCING THE TEMPERATURE OF GASES PASSING TO THE ADSORBENT PROPORTIONATE TO THE AMOUNT OF SOLVENT BEING EVAPORATED, AT WHICH TEMPERATURE THE SAID GASES ARE INTRODUCED INTO THE ADSORBENT, THE ADSORPTION OF VAPORS FROM SAID GASES BY THE ADSORBENT CAUSING THE LATTER TO BE HEATED TO A TEMPERATURE PROPORTIONATE TO THE AMOUNT OF VAPORS BEING ADSORBED, SUBSTANTIALLY AT WHICH TEMPERATURE THE RESIDUAL GASES ARE RETURNED THROUGH THE CIRCUIT TO THE ENCLOSURE TO INCREASE THE RATE OF EVAPORATION OF SOLVENT FROM THE MATERIALS, THEREAFTER RECOVERING THE SOLVENT FROM THE ADSORBENT BY ISOLATING THE PORTION OF SAID CHANNEL CONTAINING THE ADSORBENT FROM THE REMAINDER OF SAID CIRCUIT, PASSING STEAM THROUGH SAID ADSORBENT AND DIRECTING THE VAPORS EMITTED THEREFROM THROUGH A CONDENSER, AND SUBSEQUENTLY REMOVING RESIDUAL MOISTURE FROM THE ADSORBENT BY ADMITTING AIR INTO A PART OF THE CIRCUIT AND FORCING SUCH AIR THROUGH THE ADSORBENT AND THEN OUT OF THE CIRCUIT.