Combination belt and disk sander machine

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT With continuing attention to the drawing wherein applied reference numerals indicate parts similarly hereinafter identified, the reference numeral 1 indicates the main body of the present machine which body is of elongate configuration comprising a casting 2 conveniently adapted for bolted securement at 3 to the face of a motor 4.
A motor pedestal at 5 is carried by a base plate 6 in place on a supporting surface 7.
With attention again to elongate main body 1, casting 2 includes an upper surface 2A which is of substantial length (eighteen inches in one embodiment) to support the upper run of an abrading belt B.
Said casting is additionally interiorly provided with threaded bosses (not shown) to receive screws S securing a cover plate 8 of the main body.
An opening at 9 is of slotted configuration defined by a raised portion 2B of casting 2 and the end of cover plate 8.
A motor output shaft at 10 is provided with a drive pulley 11 on which is entrained a V-belt 12 driving a hub 13 of a drive wheel 14.
A spindle at 15 for hub 13 is suitably mounted to casting 2 by a boss 16 which may be positioned fore and aft in an opening in the casting wall and secured by fasteners 19.
A resilient tread 18 is on roll 14.
At the opposite end of main body 1 is a tail roll 17 which serves to tension belt B.
A tail roll mounting assembly is indicated generally at 20 which assembly is adapted for fore and aft movement along casting 2 parallel to the lengthwise axis A of said casting.
Additional provision is made for movement of a spindle component of the assembly about an upright axis to enable proper roll camber for desired tracking of the belt on the crowned tail roll.
Flanges at 21 and 22 on casting 2 mount a pair of slides 23 which in turn receive a suitably bored spindle carrier block 24.
Spiral springs 25 bias said block outwardly toward the adjacent end of the main body.
Said block is internally threaded crosswise to receive a tail roll adjustment screw 26 suitably provided with a fingergrip at its outer end