US1378174A - Pencil - Google Patents

Description

UNITED STAT FERDINAND KAISER, os sr. rAUL, MINNESOTA.

rENcIL.

To all whom it may concern: I

Be it knownathatv I, FERDINAND KA1snR, a citizen of Germany,r.esiding atlSt. Paul, inthe county of Ramsey and State of Minnesota, have invented a new and useful Penoil, of which the following is a specification.

My invention relates to improvements in pencils/ 7 V .Its object to provide a simple, durable and inexpensive pencihadapted to readily receive supplies of leadsections and designed to' quickly and easily eject a used section and replace the same with a fresh one.

-,A further object is to provide a device of this nature, designed so that the'seotion of lead, in use, is firmly secured.

'With the foregoing and other objects in view, which will appear in the following descrip'tion, the invention resides in the a novel combination and arrangement of parts and in the details of construction hereinafter described and claimed. 1 y

In the drawings Figure 1 is an enlarged central longitudinal sectional viewv of my improvedpencil; Fig. 2 is an elevation thereof; Fig.- 3 is a perspective view' in; de tail showing one end of-thetubular magazine, and Fig. 4 is' a view illustrating; an alternate structure.

In the drawings, I haveused the reference numeral 10 "to indicate a barrel, one end thereof being turned inwardly to form an annular flange 11. Near the oppositeend of the barrel 10', a Washer'12 is soldered or otherwise secured to the inner wall of the barrel 10 and is similarly secured to'a tube" ormagazine' 13 passing axially through a bore in said washer 12. Said tube 13"liesflush, or substantially so, with the endof the barrel 10 adjacent said washer 12.,but projects considerably beyond the flangedend 11 of the barrel 10. The extremity of this projecting end of the tube 13 is slit atl l and'slightly contracted to form a holder 15 to yieldingly grip lead sections 36 inserted therein. Opposite the slit 14 and near the end of the tube 13' is a slot 17 and at the inner end of said slot is a ring 18 rigidly em bracing the tube, said ring being cut away at 19 to form a recess or way, equal in width to that of the slot 17 for purposes as will soon appear. A hollow tip 20 having a cylindrical base section 21 and a tapered section 22 incloses the end of the tube 13 projecting beyondthe flanged end 11 of the barrel 10. Thersection 21 of the tip slides Specification of Letters Patent.

'KF s- 1s a washer 24, the bore of which loosely ger 27 FATENT OFFICE-e ent a 1.7, .1 21. Application filed January 28,1920. Serial No. s54,72 7. Y 7

outwardly projecting flange 23 on said section slides within the bore of. the barrel! These flanges form coacting stops to prevent the removal of said tip 20 fromthe barreli 10. The reduced end 22 of thejtip 20 ,slidably receives the end ofthe tube 13. Se-

cured within the section 21-of said tipsow or abutting thereagainst' (Fig. 4)

receives'the tube 13. A spring 25 is coiled about said tube 13 and interposed between said-Washer 24 and a'shoulder 26 fixed upon the tube l3. This spring 25 yieldingly'holdsfi the tip 20 in normal position: wherein the flanges 11 and 23 abut and the reduced end of the tip 20 inward so 'as spring 25, and-near the end Of SliChum OVe lies flush with the inclosedextremity of the tube 13. A. yielding finger- 27, cut from the wall'of the tip 20, is turned to project through the slot 17 f in the tube 13, when the tip 20 is in normalv position. This finger'passes rearw'ardly' in'- ment of the tip 20, rides over the end 17 of said slot 17 and into "the way 19 in the ring 18 on the tube- 13. 5 Thus, it will beseen that K said finger 27 prevents the rotationof the tip 20 with respect to the barrel 10, by rea--' son of its positions in the'islo t 17 and a 19. 1 A knurled annular portion 28 onfthe tip 20 furnishes a grip for th'e' fingers, by which the tip 20 may-be easily manipulated against the 'action of'the' spring 25-. 25 serves, :in the absence of resistancefto return'the tip 20 to normal position The sharpened lead sections16 are inserted, point" first, in the mouth 13 of the tube 13 andfall by gravity therein,

The finger 27 holds the lead 16 against backward movement and, together with the holder 15, firmly secures the lead 16 in position'for use To supply a fresh lead to the holder, it is only necessary to press the tip 20 inward. During this operation, is lifted from the slot 17 into the Way 19, thus allowing the second lead to fall, by

Said spring the first' lead beingshiftedby the tip'20 into operable position within the holder 15 as shown in Fig.

gravity,to a'point within the tube 13 ahead v of said 20, the spring 25 forces the same outward to normal position. During this return movement of said tip 2O. the finger 27 first reenters the slot 17, then abuts against the finger 27. Upon releasing the tip second lead,then urges the same forward toward position within the holder 15 and finally seats the same within said holder.

The used lead is ejected from the holder 1 by pressure from the new lead as it 1s ad,-,

vanced into position in said holder. A slipcap 29 closes the top of the barrel 10 and also the mouth of the magazine 13.

Changes in the specific, form of my invention,;as herein disclosed, may be made within the scope of whatis claimed without departrom the. spirit of my invention.

. n f i ilaving described my invention, what I 'claimas new and desire to protect by Letters-Patent is:-

or r 1. A pencil comprising a barrel, a tubular magazine fixed axially therein and adapted to freely receive pointed leads, said magazine ha ving a slot near the discharge end thereof and being split longitudinally and contracted slightly at said end to form a yielding holder for the leads, a hollow cone- I shaped tip slidable at its large end within the barreland at its small end upon said magazine,'a spring for yieldingly holding the tip in extended position, and an inwardly inclined yielding finger cut from the wall of the tip and normally'projecting through the slot insaid magazine to hold a 7 adjacent lead, eject the first to hold a lead within the holder againstlead within the'holder against backward movement, and being further adapted, upon the reciprocation of said tip, to engage the lead from the holder and insert the second lead therein.

2. A pencil comprising a barrel, a tubular magazine fixed axially therein and adapted to freely receive;pointed leads, said magazine having a slotnear; the discharge end thereof and being split longitudinally and contracted slightly at said end to form a yielding holder for the leads, a hollow cone-shaped tip. slidable at its large end within the barrel and at its smallend upon said magazine, a spring for yieldingly holding the tip in extended position, an inwardly inclined yielding finger on thetip normally projecting through the slot in said magazine 7 backward movement, and being further adapted, upon'the reciprocation of said tip,

, to engage the adjacent lead, eject the first and contracted slightlyatsaid-end to form a. yielding holder, for the; leads, a hollow its large end cone-shaped tip slidable at within vthe barrel and at its small end upon said magazine, a spring'for yieldingly holding the tip in extended position, an inwardly inclined yielding finger cut from the wall of thetip and normally projecting through the slot in saidmagazine to hold a lead within the holder, against backward movement, and being further adapted, upon, the reciprocation of said tip, to engage the adjacent lead, ejectthe first load from the holder-and, 7

insert the second lead therein, and a: guide on the magazine to receive the .finger,when the tip is retracted, said slot and guide serving to maintainthe tipin fixed angular relation with respect to the barrel; 1 a

4:. A'pencil comprising a barrel, a tube fixedaxially within the barrel, a tip slidable at one end in the barrel and at its other end on the tube, said tube being adapted to slid,- ably receive a series of lead sections, means on the tip arranged to engage the leads within the tube and advance the same-therein and a-spring within the barreljadapted to yieldingly hold the tip inextended position,

whereby the lead engagingmeans on said 7 tip is further caused to act as a-stop for saidleads.

5. A fixed axially within the barrel, a tip slidable at one end in the barreland at its other end in the tube,

said tube being adapted toslidably receive aseries'of lead sections and leads within th therein.. 7 In testimony whereof, IQhavesigned my name to this specification.

FERDINAND KAISER.

tubeand advance the same pencil comprising a barrel, a tube" 95. means on the tip arranged to engage the f

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