| 摘要 |
437,435. Locking bolts, nuts, and pins. HUGHES, G., 9, Warwick Court, High Holborn, London.-(Collis, R.; 169, Holmwood Avenue, Ottawa, Canada) May 31, 1935, No. 15888. [Class 89 (i)] A locking-device for bolts, nuts, and pins comprises a split annular metal or alloy disc 3 with spaced lug-like ends 4 to enable it to be passed over a groove in the pin or bolt, which ends are pressed together to grip the collar about the pin or bolt, or are separated to release it by pinching towards each other a pair of projections 7 located midway between the ends. The pin has circumferential channels 2 to receive the locking-members 3, which may be composed of pewter, aluminium alloy, or brass. Separation of the lugs to effect removal may be effected by tools. The distance between the points 8 is somewhat less than the diameter of the groove. The collar may be reduced between its ends as shown at 9, Fig. 4. The ring tends to fracture upon removal, thereby necessitating a new ring. Additional channels may be provided at one or each end of the pin. The lugs may be bent to produce upstanding free ends and/or apertures may be provided for tools to open the collar. Bolts may be grooved and supplied with rings 3 to lock the nuts. |
