1850 29 Aug. 9/1 (advt.) Potato-pulping machines.]
1860 1 Sept. 16/3 (advt.) Bentall's pulping machine.
1909 Aug. 518/1 From this pulping machine it passes to the centrifugal pump.
2006 (Nexis) 2 May 22 The papermaking process starts with mats of raw material..being minced and ground with water for four or five hours in a pulping machine.