公开(公告)号：US3649107A

公开(公告)日：1972-03-14

申请号：US3649107D

申请日：1970-04-13

Applicant: ESB INC

Inventor： HOFFMASTER GEORGE R ,  PRINS JACK M

IPC: G02C5/20

CPC classification number: G02C5/20 ,  Y10S16/39 ,  Y10T16/473 ,  Y10T403/32451

Abstract: The invention relates to means for adjusting the length of spectacle temples. The forward portion of each temple is of rectangular tubular construction into which portion the rear portion of the temple is adapted to slide to selective positions held by a short spring anchored intermediate said forward portion. The spring engages selective spaced slots of the rear portion. A window is provided on the forward portion to view a scale on the rear portion which indicates the overall length of the spectacle temples.

Abstract translation: 本发明涉及用于调节眼镜镜腿长度的装置。 每个镜腿的前部具有矩形管状结构，其中该镜腿的后部适于滑动到通过锚定在所述前部的中间的短弹簧保持的选择位置的部分。 弹簧接合后部的选择性间隔开的狭槽。 在前部设置有一个窗口，以便观察后部的刻度，其表示眼镜腿的整体长度。