| 摘要 |
An arrangement for firmly mounting a body in an aperture located in a planar surface on a platen comprises a mounting plate which is inserted in a groove located on the perimeter of the body. Means are provided for urging a part of the plate projecting from the groove into abutment with the planar surface and holding the projecting plate part thereagainst. The planar surface and the opposing surface of the mounting plate form an acute angle therebetween prior to urging the projecting portion into abutment with the planar surface. The value of this acute angle is selected in respect of given parameters, so as to pre-stress the mounting plate when the projection is urged against the planar surface. |
