US1474595A - Pencil - Google Patents

Description

number of features .claimed'in the applica- TCD AUTOPN'E MNUFACTURING COMPANY,

CHICAGO,ILI|INOIS, ASSIGNOR, BY MESNIL?. ASSEGNMNTS,

OF CHICAGO, ILL'L-NOS, A GORPOR- PENCIL.

Applicationled vAugust v23, 1920. Serial No. 405,21f,

To allwhom it may concer/n.:

Ee it known that CHARLES/R'. KEER'AN, a citizen of the United States, residing at rlChicago, in the county of Cook and State of illinois, have invented certain new and useful improvements in Fencils, of which the foilowing isa specification. A

T his invention relates to a pencil equipped with propelling mechanism interiorly of its body, and operable by means exteriorly thereof, for advancing-into operative position a lea-d at one end, and an eraser at tlie other. in many respects the presentpencil follows the construction already disclosed in my application now pending as Serial No. 291,494 (Patent No. 1,372,296); it exhibits however, certain improvements which have to do particularly with a magazine within' thepencil for the accommodation of re-4 serve leads. It is to be understood, therefore, that the present pencll embodies 4 a tions aforesaid, as well as certain other improvements to which specific reference will hereinafter be made. l

In the accompanying drawing, an exemplification of this invention is shown in the manner following:

Figure 1 is a longitudinal section through a tubular pencilbody, certain of the interior parts being shown in elevation;

Fig. 2 is a similar view, enlarged, through the upper portion of the pencil;

Fig. 3 is a transverse section taken on line 3--3 of Fig. 2;

Fig. 4 is an elevation of the'm-agazine member removed from the pencil;

Fig. 5 is a fragmentary view inA longitudinal section of the sleeve which is arranged in the lower end of the penciland Fig. G is a view inplan of one ofthe sections composing a magazine member of construction slightly diterent from that elsewhere exhibited, Y

In-the use that is herein made of the terms upper and lowerf7 it is to'vbe understood that I am referring to .the pencil as it is pointed in usethat is, with the eraser end up, and thewriting end down.

ln-Fig; 1 the pencil body, designated as A, is provided with a vlower end 10 which terminates bluntly in the form of a truncated cone. 'In theconstruction shown, this body may be produced from metal in tubular formation so as to provide a casing within ce-ive leads which are accommodated the operating parts, as well as reserve leads. Arranged centrally within the body is a tube 11 that is deformed throughout its lower portion 1,2 to present a vcross section other than round. At its lower extremitythis tube is shown to be formed withthreads 13 which connect with a bushing 14 which may besweated o r soldered within the casing near its tip end. The

walls of the casing at its lower extremity are formed as atv 15 toprovide a constricted. passage through which a lead is projected Vfor use.

,Surroundingthe low'eriportion of the tube l'lis a. sleeve 16 whose lower end is rested upon the bushing. .A plate 17in the form of a washer is adapted to rest upon the. .upper end of the sleeve, or this' end of the be flanged as at 18, (see Fig. 5)

sleeve may base for the reserve lead so as to constitutea `magazine which, in the construction. shown,

is disposed throughout the upper region of the pencil within the annular space intervenling between the walls of the casing and the Atube 11. This space is subdivided by an elongated magazine member B formed preerably in three section`seaeh of spring 'maremain in place underthe influenceI of its own springaction. `EachA of these spring sections comprises a. radial arm 20'which,` is bent upon itself atfits inner edge, as at 21,

` an larc-shaped wall 22 extending between the two bends.l The wall 22 stands out from the central tube 11 the requisite distance to leave a space within the magazine which may re- C without permitting motion thereof toward and from the pencil center. As shown lin Fig. 3 this correct positioning of the arc-shaped wall is obtained by the double bending at 2l so as to present the central curved lsection 23 /in spaced /re-lation to the central tube. A modified construc- .terial 1n sheet form and each'designed to v tion such as is shown in F/ig. 6 is also suggested whereineach section of the magazine member is provided at its lower/end with a transversely disposed lip 2i extending' between the arms 22 so. as to constitute a base for the reserveleads which are accommodated within the pencil.

The upper end of the magazine member is represented as terminating' slightlyv below end 25 .of the pencil body'. A' bushing 26 is secured vnoivrotataoly to the tubell, as by sweating or solder. immedimit a single lead to be removed for purpose1 al oruinsertionotl these leads. `.it will be noted that the connection betwen ately above the magazine member, and the tube extremity is Afurther spun out at 27 to overlie thisl bushing so as to retain the same in place. Through the medium. of threads 'formed exteriorlyi on the bushing conne/je. tion is established lwith another bushing 28 thatl is secured' interiorly of a collar\29 which in turn is rotatably connected. wlth an 'eraser sleeve 30, these two parts- -thecollar and eraser sleeve-.constituting a head which isdetachably secured to the pencil body in themanner explained. The bushing-26 serves,. therefore., as a connecting medium for the head and also as a lock for the threesections of the magazine member Whose upper ends are engaged thereby. The propelling means for the lead whichisactuated by the rotation of the `eraser sleeve need not be l,described in detai According to the invention that IlV` have,v herein described, Vthe parts. which form theA magazine of this pencil may be very accurately and expeditiously produced. 4 Their assembly into thel pencil-may alsol be accomplished with ease-and precision. The conthe pencil head and body is onewhich may be very readily disestablished so as to perof insertion within the central tube 11 wherein propulsion is effected.

l claim: l. A pencil having a hollow casing for its body, a tube arranged longitudinally therewithin and secured thereto at its lower end, al transversely disposed arranged plate between the tube and casing', means for su'pporting the plate on its underside comprising a sleeve surrounding the tube and ex- `tending between the plate and the connec- Ation at the lower end oi` the pencil between the tube and casing, al magazine member surrounding the tube extending above. the plate', and a closure for the magazine adapt-4 ed for detachable connection-with the upper endot the pencilysubstanti'ally as described. 2. A pencil havinga hollow casing for its body, a tube arranged longitudinally ,therewithin, there being an lannular space between the tube and o asing,' and means subdividing said space comprising a 4plurality of sheet metal partition members, each formed to present ktuffo@ Walls extending radially from thecasing-to the tubeand bent upon themselves and then connected by an' arcshaped wall which lies adjacent the tubev but 4spaced therefromI suficientlyc to present its out-er face trom the casing-wall al radial distance"substantially equal to the diameter of a reserve lead to be accommodated within tlief'subdiyided Space, the radial wallsof the partit-ion member being` spring pressed;

against one another'so as to remain `in place of theirr own accord, substantially as. de'- scribed.'

3. A pencil having a hollow easing for'its body a-tube arranged longitudinally-there wlthin, there being 'an annular-space between Vthe tube and casing, and means subd'ividing said space comprisig a plurality of sheet metal partition members, each formed to present two walls extending radially from the casing-,to the tube and then connected by anl arcshaped wall, which lies adjacent. the tube7 the radial walls ot the partition members being` spring pressed against one another so as to remain in place of their own accord, substantially as' described.

4.- A pencil having a hollow casing for. its

body, a tube arranged longitudinallythere.

within and adapted tov guide the lead through'the pencilvxv a connection between the tube yand the body at the lower end of the pencil, a sleeve surrounding the tube and presenting its lower end adjacentsaid connection, means at the upper sleeve end a'ordin'g -a base for a magazine within the body, a

magazine memberV surrounding the tube and extending above the magazine-base, and a closure for the magazine'adaptedfor detachable connection withthe. upper end of the pencil, substantially as described.

estantes n. nennen.

"Witnessi4 I EPHRAIM BANNI'NG'.

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