摘要:
The invention relates to abrasive flap discs which are used for a variety of finishing, grinding and polishing operations, particularly on welded fabrications. The present invention provides an abrasive flap disc (20) comprising a backing plate (11), an annular array of flaps (12) of abrasive material arranged on the backing plate (11) and bonded thereto along the lower most edge of each flap (12), wherein each flap (12), at least in a radially outer region is substantially spaced from each adjacent flap (12) such that the flaps (12) have freedom to flex and conform to an underlying surface in use.
摘要:
The invention relates to an eyeglass lens layout device for performing layout to fit an eyeglass lens to an eyeglass frame, and an eyeglass lens processing apparatus with the eyeglass lens layout device incorporated therein. The device include a layout data input system by which layout data are inputted for each of horizontal and vertical layout items with respect to the frame, a memory in which layout methods are stored corresponding to lens types, a designating system by which one of the lens types can be designated; and a controller which retrieves one of the layout methods from the memory and sets the retrieved one of the layout methods for a corresponding one of the layout items, in accordance with the designated one of the lens types.