Abstract: A positioning table includes a table member having a load plane, a supporting device for movably supporting the table member within a plane parallel to the load plane and, first, second, and third slide blocks located around the table member in a freely movable fashion toward and away from the table member. The first and second slide blocks move in directions parallel to each other, and the third slide block moves in a direction perpendicular to the moving directions of the first and second slide blocks. First, second, and third rollers project from a peripheral edge of the table member and are rotatable about axes perpendicular to the load plane.

Abstract: A printing apparatus includes a loading section for guiding wiring boards into the apparatus, a printing section equipped with a mask for printing a conductive material onto each of the wiring boards, a position detecting device for detecting a position of the wiring board held by the holding device, an alignment section for positionally correcting the mask or wiring board held by the holding device on the basis of an output signal from the position detecting device, and a transfer device having holding device for holding the wiring boards and turning to transfer the holding device and stop the holding device at the loading, printing, and alignment sections at the same time so that loading, printing, and alignment operations are simultaneously performed.

Abstract: A grinding apparatus includes a disc-like carrier rotatably driven and having a plurality of holding holes formed in a circumferential direction thereof, the carrier transferring a work fitted in each of the holes, a ring-shaped holder member disposed at an outer peripheral part of the carrier and holding the carrier in a stretched state, an upper and a lower guide members for guiding upper and lower surfaces of the work fitted in the holding hole of the carrier and transferred by rotation of the carrier, and a first grindstone arranged at either an upper or a lower side of a processing position for grinding one of the upper and lower surfaces of the work while the other surface of the work is guided by means of either one of the guide members.

Abstract: A method of winding a long sheet continuously around the plate bobbin comprises the steps of repeatedly moving in one direction on an approximately circular locus a rotary shaft for winding, rotating the plate bobbin, repeating on a certain moving locus, repeatedly moving in the same direction or reciprocatingly the rotary shaft of the nip roll so that a nip roll disposed in an approximately parallel to the rotary shaft of the plate bobbin continuously move in one direction along the surface of the plate bobbin rotating from above the above described long sheet, depressing the long sheet against the above described plate bobbin so as to continuously wind it, thereby to wind a long sheet around a plate bobbin with better accuracy, higher speed without the air swallowing operation.