953,116. Reservoir pens. A. J. FAGARD & CIE. Feb. 13,1962 [Feb. 17, 1961], No. 5457/62. Heading B6P. In a retractable ball-point pen, wherein the cartridge 31 is biased in the retracted position by a restoring spring (not illustrated), a push button 19 has cam surfaces 21, 22, 23 and 34, and radial lugs 24, Fig. 2. A drum 10, integral with the barrel of the pen has cam surfaces 13-17 with slots 12, Fig. 1. Lugs 24 run in the slots 12, preventing relative rotation between the drum 10 and the push button 19. A turn button 27 which receives the cartridge 31 against a rear transverse wall 28 has radial ears 29, each with a bevelled top surface 30 as shown in Fig. 8, or alternatively a rounded or pointed surface (not illustrated). A spring 32 biases the push button 19 away from the turn button 27. From the retracted position, Fig. 8, the push button is depressed, transferring the radial ears 29 from the push button cam surface 21 to the drum cam surface 13 with a small rotation of the turn button. The cartridge is then in the projected writing position. Further depression of the push button releases the ears 29 from cam surfaces 13, and the turn button returns to the retracted position of Fig. 8. The complete operation of projection and retraction is shown in Fig. 8 and Figs. 9-14 (not shown).
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机译：953,116。储水笔。 A. J. FAGARD＆CIE。 1962年2月13日[2月。 1961年第17号]，第5457/62号。标题B6P。在可缩回的圆珠笔中，其中盒31通过复位弹簧（未示出）被偏压在缩回位置，按钮19具有凸轮表面21、22、23和34以及径向凸耳24，图2与笔的笔筒成一体的鼓10具有带有槽12的凸轮表面13-17，图1。突耳24在槽12中延伸，从而防止了鼓10和按钮19之间的相对旋转。相对于后横向壁28接收药筒31的图27所示的实施例具有径向耳29，每个径向耳29具有如图8所示的倾斜的顶表面30，或者具有倒圆的或尖的表面（未示出）。弹簧32将按钮19偏压到远离旋转按钮27的位置。从图8的缩回位置，按下按钮，将径向耳29从按钮凸轮表面21传递到鼓凸轮表面13。旋转按钮的旋转很小。然后，盒带处于投影的书写位置。进一步按下按钮可使凸耳29从凸轮表面13松开，并且转动按钮返回到图8的缩回位置。投影和缩回的完整操作如图8和图8所示。 9-14（未显示）。
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