US1554604A - Pencil - Google Patents

Description

sept. 22, 1925.

W. A. SHEAFFER PENCIL Original Filed May 5. .1919

Patented Sept. 22, 1925.

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The body of the pencil is yprovided with an inner shell 16 with Whichthe lead reservoir tube 18 frictionally engages. the pencil being rigidly secured to the lead reservoir ltube and the latter being in frictional engagement With the inner shell 316 so as to impart rotary movement to the latter relatively to the outer shell 6,V constitutes an operating head, as may be more fully understood by referring to the afore` said patent No. 1,284,156. rlhe lead reserv voir tube 18 also has a sliding lit With the of the circular edge 12 and extendsover such maximum cross-area. rlhe lead tube 18 extends into the Vouter shelll() to form a hollow chamber With a bottom adjacent the closure 11. The flaring from the cylin-` drical portion 9 tothe circular edge 12 is continuous to form ivith'the circular reinforcing closure 11 a bell-shaped cap as shown in Fig. 1. Preferably' the closure 11 has the shape of a segment of a sphere and so also the bottom 15 of the lead reservoir 18 so that such bottom y15 mayk make a close fit with the inner surface of the disc 11. As aboveexplained, the annular bead 17 engages the inner surface of the outer shell 10 betvveenV the cylindrical portion thereof and the flaring portion thus assisting the securing means at 19 to hold 'the bottom of the lead reservoir abutting'against the inner surface of the disc 11. Maximum space for the leads is therefore secured and at the same time the lead reservoir assists in forming an operating head rigid in construction and prevented from being dented when the pencil falls on the floor, either sideivise or endwise. Vhen the pencil falls sideivise there will be a resisting thrust at the circular edge 12 of the disc 11 Where the annular flange of the shell 10 fits over suoli circular edge. When the pencil falls endivise there 'will be a resisting thrust over the bottom 15 and at the circular edge 14; of the lead reservoir tube 18.

I claim f 1. A pencil comprising a head portion having an outer shell with one portion substantially cylindrical and another portion flared, a member in and substantially fitting the 4, cylindrical part of the shell With a shoulder engaging the inner Wall of said flared portion, and a disc secured in the flared end of the shell and engaging an end of said member.

The headv of 2. A pencil comprising Va head portion having an outer shell with one portion of substantially uniform cross-section and an jotlier portion flared, an outwardly curved dise held in the flared end of the shell, and a member in said shell with a shoulder engaging the flared part of the latter and its end engaging the disc.

8. A pencil comprising a head portion having outer and inner shells with the outer shell having one end `closed and one end of the inner shell engaging the inner Wall 'of said closedend; and a shoulder on the inner shell engaging the inner Wall of the outer shell holdingthe end of the inner ,shell tightly against the closed end of the outer shell. y

a. A pencil comprising a head portion having telescoping tubes with the outer tube flaring at its upper end;r a 'disc resting against an `end of the inner tube' and held at its periphery in the flaring opening of the outer tube; and a bead struck up in the inner tube engaging they flaring inner Wall of the outer tube.

5. A pencil head portion comprising an outer shell having one end flaring; a convex disc closing the flaring end of said outer shell; and an linner shell having a portion engaging the concave side of said disc and another portion engaging the inner Wall of the flaring end of the outer shell tending-to hold the shells against relative movements.

6. A'pencil head portion comprising an outer shell khaving an enlargement therein; a disc in theupper end of the outer shell attached at its periphery to said shell; an inner'shell disposed in the outer shell with one end resting against saidr disc; and an enlargement on the inner shell engaging the enlargement on the outer shell and cooperatn ing with the disc to hold the inner shell in position. i i 5 k'2'.v A pencil head portion comprising tele# scoping tubes With the outer tube flaring; a closure Ahaving its edges attached to the upper flaring end of said outer tube; a closure at the upper end of the inner tube conforming in shape to and fitting against the inner side of the central portion of the first-mentioned closure reinforcing the latter over its c'entralportion; and means associated With the tubes holding said closures together. y y

8. A pencil head portion comprising telescoping tubeswith the outer tube flaring; a sheet material closure in the form .of a segment of a sphere, conveXed upwardly and having its edges attached to the upper flaring end of the outer tube; a closure at the upper end of the inner tube upwardly conveXed and fitting against the inner wall of the first-mentioned closure adapted to reinforce the latter over its central area op# posite'the upper end of the inner tube; and

. theisheet.,material disc reinforcing tl'ie.lat-

means .associated with said1 tubes `.bOlling said closures together.u i .e y

L9. A pencil head portion oomprisingtelescoping. tubes with. the .outer Ytube flaring; an upwardly i f convexed sheet material disc disposed in andclosingthe upper flaring end `of the outer: tube, the top edge of said Qutertube being disposed over and lsecun ing the latter in position; a Vclosure Yonthe upper` end .of the. inner; tube upwardly ,cenvexedand .fitting `against .the under` side` ot" ter; .and means.` associatedlivithisaid tubes for holding .said disc f and closure together 10. A pencil `head .portion comprising ftelescoping .tubes with the. outer tube flaringat its upper end; a sheet materialdisc .upwardly convexeduand disposedin the upper flaring end of said outer tube, the upper edge portion of said outer tube being dis osed over the peripheral edge of said disc rolding the latter in operative position; and means holding the tubes against relative movements.

11. A pencil head portion comprising a relatively7 long lead reservoir tube; a relatively short tube telescoped over the lead tube and having its upper end flaring; a closure in the upper end of said lead tube upwardly convexed; a disc closing the upper flaring end of said relatively short tube and disposed tightly against the entire area of said closure. for the lead reservoir tube; and means associated with said relatively short tube and said lead reservoir tube holding said disc tightly against the closure of the lead reservoir,

12. A pencil head portion comprising a relatively long tubular lead reservoir, a relatively short tube telescoped over the outer side of said lead reservoir and having its upper portion continuously and uniformly fiaring to a circular edge, and a circular closure spanning the circular edge and convexed outwardly todiave the form of a segment of a sphere.

13. A pencil head of sheet metal comprising a tubular portion and a bell-shaped portion merging into each other, the bellshaped portion being continuously flared from the tubular portion to a narrow circular edge, an annular flange extending inwardly from said narrow circular edge, and a disc fitting within said annular flange and against the inner annular wall of said narrow circular edge in position to resist thrusts and prevent denting when the pencil falls onto a horizontal surface.

14. A pencil head portion comprising an outer shell flaring outwardly longitudinally of the pencil and also flaring uniformly to a circular edge with its greatest cross-section at its extreme top and thereby forming a bell-shaped head, a disc closure within the boundary of said circular edge and extendend of; thepencil, andwareinforcing Ac lcsnure within theflboulrdary of said 4cirgnilar.'` edge and extending across ,the greatest diameter of said flared portion position. to resist falling-thrusts and1preventingifdentingfof tllelfltll Y l y 151,6. Ai capafor .the headoat` aapencili coul.- prsngf. azhollowbelleshaped member-flared outwardly and longitudinallyof the pencil and continuously to a circular edge of maximum diameter, and a reinforcing closure having an outer surface of the shape of a segment of a sphere and located within the boundary of said circular edge and extend ing across the maximum diameter of said hollow bell-shaped member to resist falling thrusts and preventing denting of the latter.

17. A pencil head comprising an outer `shell flared at one end with its greatest cross-area at the aforementioned end; a disc having a peripheral edge attached to the outer shell at its greatest cross-areag and an inner shell disposed in and secured to the outer shell and engaging the central portion of said disc.

18. A pencil comprising an operating head having an outer bell-shaped shell flaring continuously. to the extreme end of the head, a closure at such extreme end of the.

head in position to resist falling thrusts and preventing denting of the head, an inner shell having a chamber adapted to store extra leads for the pencil, and means for securing said inner shell to said outer shell with the bottom of the inner shell adjacent said closure.

19. A pencil head comprising an outwardly flaring hollow bell-shaped port-ion, and an outer closure extending inwardly from the peripheral edge of the largest :rosssectional area of said bell-shaped portion and secured rigidly thereto in position to enable said edge to resist falling thrusts and prevent denting of the head.

20. A pencil head comprising an outwardly flaring end portion and a disc having the shape of a segment of a sphere fitting within the turned-over edge of said flaring end portion.

21. A pencil head comprising a bellshaped fiaring end portion, a disc fitting against an annular shoulder at the edge of said end portion, and means within said end portion foi-abutting against the inner surface of said disc.

22.A head' for a pencil comprising an outer bell-shaped portion continuously liaring to a Circular edge of maximum crossseotional area, a Circular end closure for said maximum cross-sectional area, a lead reservoir tube extending into said outer bell-shaped portion to the inner surf-ase of said closure, said lead reservoir being adapted to store extra leads for the pencil, and means securing said Ltube within said outer bell-shaped portionto abut `against the inner wall of said circular Closure with the bottom of said lead reservoir substantially at the inner surface of said closure.

23. AV head for afpenoil comprising an outer shell flared longitudinally and Youtwardly uniformly to a eireular edge, a dise closure fitting securely under an annular flange extending inwardly from said circular edge, and an inner shell having a closed circular bottom iitting against the inner surface of the central portion of said disc.

24. Jnhead for a pencil comprising an outer shell having a Cylindrical tubular portion and an outwardly flaring portion, a circular closure for the said flaring portion, an inner tubularshell concentric with said tubular portion and extending into said flaring'portion, andan annular connection between said inner tubular shell and the said outer shell where said tubular portion merges into said flaring portion.

In testimony whereof l have signed my name to this specification on this 30th day of April A. D. 1919.

VALTER A. SHEAFFER.

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