作者: Robert H. Bowers
DOI:
关键词:
摘要: Ball-ender apparatus for securing an annular ball to a wire musical instrument string. A carriage reciprocable between front and rear positions carries rotatable support spindle. An upstanding feed tube receives column of balls from oscillating hopper has retractable gating pins dropping at time on the forward end Wire is fed behind past substantially L-cross-section guide plate. The length determined in proportion rotation timing wheel. de-reeling device leads supply reel serpentine path reduces starting tension wire. Upon rearward movement carriage, spindle ball, which severs upstream forms into U-shape about clamp actuator cones cause members engage legs said tightly. Rotation then twists such together first twist ball. In single embodiment, subsequent return causes ejector member guided eject interconnected However, double modification, ejection step proceeded by engagement lock jaws with area, momentary interposition stop advancement, release form twist. Guide rods adjacent plate ejected point removal apparatus.