| 摘要 |
629,343. Book ends. MARGERISON, C. J. July 26, 1947, No. 20196. [Class 52 (i)] [Also in Group XXIV] A lazytongs linkage carrying end members 7 for engaging books or other articles is locked in any required position by means of a wing-nut 9 carried on a pivot 2b of the linkage and screwed against a slotted bar 8 carried by a second pivot 2a. The end members 7 are pivoted at 5 to one end of links 4 the other ends of which are pivoted to the end links of the lazytongs. |
