end to be removed from the socket in the main support means 54 this permits the stripper shaft 72 and the stripping means 48 to be readily removed for cleaning the feed roller mounting member 52 comprises two vertical parallel spaced apart mounting plates pivotally mounted on the main support means in the preferred embodiment there are two eccentric cams 62 which may be rotated to the desired rotational position by means of hand wheel 100 to adjust the distance between the feed rollers 42 and 46 and the coating roller 28 feed roller biasing means 58 comprises two springs shown in fig1 which bias the feed rollers towards the coating roller the feed rollers are prevented from contacting the coating roller 28 by two stops 60 which ride on the two eccentric cams 62 although dual springs cams and stops are used in the preferred embodiment only one of each element is required gears 90 92 and 94 have a depth of engagement which is greater than the range of adjustment of the distance between the coating roller and the feed rollers this allows the distance between the coating roller and the feed rollers to be adjusted to provide for different thickness of sheet materials while maintaining the engagement of the feed roller gears 94 and 92 and the coating roller gear 90 a chain and gear drive system 102 drives the conveyor belt 50 in the appropriate direction stop 104 is provided against which the apparatus is held by gravity in the operating position a latch mechanism could also be used in different configurations of the invention to latch the invention in the operating position the angle of guideway 80 is made adjustable by means of a bolt 106 sliding.