of high fatigue continuously moving over the blanket surface so that the amount of time any particular region sees wear is minimized positioning of the heads to which the blanket ends are mounted is controlled by hydraulic pistons mounted between a support beam and the heads a controller operates a valve to reverse the direction of motion of the blanket when sensors indicate one end of the blanket has reached a stop a throttle valve controls the rate at which hydraulic fluid is supplied to the cylinders which urge the head away from the shoe application_number US 65981596 A description referring more particularly to fig1 3 wherein like numbers refer to similar parts a press 20 formed by a shoe 22 and a backing roll 24 is shown in fig3 the shoe 22 is supported on a cross beam 26 by one or more hydraulic pistons 28 which urge the shoe 22 against the backing roll 24 a film of oil or lubricating fluid is supplied between a blanket 30 and the shoe 22 allowing the blanket 30 to move over the shoe with low friction the press 20 has a back end 32 and a front end 34 the blanket 30 front end 36 is mounted to a front head 38 and the.