| 摘要 |
668,704. Rotary tables. BERTHIEZ, C. W. May 23, 1950 [July 29, 1949], No. 12887/50. Class 83 (iii). [Also in Group XXXIV] A horizontal turntable 64 is mounted on a machine bed 55 by means of stationary roller bearings 61, 66 and an annular slidable bearing, the upper element of which is formed by a slideway 79 secured to the turntable while the lower element consists of a number of separate portions each in the form of a shoe 81 provided with a shank 82 slidable in a cylinder 83 secured to the machine bed, oil under pressure, which is adjustable, being supplied to the shank and cylinder through a pipe 88 and duct 89. |
