US1693579A - Magazine pencil - Google Patents

Description

r ...Hull

J. STRAKA MAGAZINE PENCIL Fileq Aug. 16, 1922 Nom 7, 1928.

Paf-maa Nev. 27, 192s.

lNrran STATE-s Parana JOHN STRAKA7 OF KENT, OHIO, ASSIGNOR T0 THE WAHL COMPANY, OF WILMINGTON,

. DELAWARE, A CORPORATION F DELAWARE.

. MAGAZINE PENCIL.'

Appnatfon mea August is, 1922. serial No. 582.142.

lo fashioning of the extension member to per-v mit entry, through its rearward end portion, of a lead section and lead propeller. The invention also includes a main body portion for ready detachable union with the tip unit y l and the provision-of a clearance way therein for the entry of the extension portion of the tip thereinto and a relative fashioning of the propeller and the wall of the clearance way in the' body member for such engagement that, through relative turning of the tip and body, the propeller will be advanced within the extension member of the tip to cause projection of the lead section.

The invention also includes an interior fashioning of the main body portion of the pencil to afford a clearance opening for the entry of extra lead sections, and a cap closure for the rear end of the body portion.

The invention also includes details of' structure and combination of after more particularly specifie l Referring to the drawings, Figure 1, 1s a parts hereinside elevation showing the parts of my in-A vention completely assembled.

Figure 2, is a detail view, showlng the fashioning of a shell member, adapted for insertion within the main body portion of the pencil.

Figure 3, is a transverse section `on the 40 line 3--3 of Fig. 1.

Figure 4, is a transverse sectional View on the line 4-4 of Figure 2.

Figure 5, is a detail view of a. tip unit including a tip member and an extension therefrom and showing the manner of support and entry of a lead section and a lead propeller.

Figure 6 is a central longitudinal section showing the interior construction and assem- 5o bly of parts.

Referring to the drawings, 10, is a perforated tip member; 11, is an extending actu'- ator member integrally connected therewith, the same being centrally perforated in register withthe perforation in the main tip member and is fashioned throughout a portion of its length with the spiral way 12. 13, is a tensioning member rigidly united to the tip unit at one end but having resilient free ends active to permit detachable frictional rotatable connection between the tip and pencil body. The member 13, as herein shown is adapte-d to co-act in connection with a metal ody and for that reason is fashioned with longitudinal slots to permit resilient action. However, should it be desiredgto join the tip unit to a wood or fiber body, such a resiliently acting member would not be required, as a mere shouldered portion upon the tip unit would function in connection with,

suoli wood or fiber' body for detachable frictional union.

. 14, is a hollow barrel forming the main pencil body and 15, is a cap closure therefor. 16, refers generally to an inner tube or shell member, adapted for insertion within and removable from the pencil body, as

- shown in Fig. t the lower portion 17, thereof being interiorly fashioned to presentI plural longitudinally extending guide way-s 18, for coaction with a lead propeller as hereinafter particularlyv described, and 20, is an extra lead container portion of the shell, A pocket clip 24 as shown is removably held between the hollow barrel and inner tube with the up- 'per end of the clip seated in the depression 25 formed in one of the faces of the shell 16.

Referring now to means for advancing a lead section, 21, to exposure at the end of the tip, 22, is a lead propeller adapted for entry within the tip extension member 11, and is fashioned with a laterally projecting member as 28, adapted for co-action with the spiral way 12, in the extension member and also with any one of the corrugated ways 18, in the member 17, of the shell 16. The eXtra leads may be stored either within the hollow inner 'shell 16 or in the clearance spaces between the 'tip unit and tlie body portion of the pencil,

the propeller will be turned, and through the co-action of said laterally projecting member with the spiral way 12, in emension member ner shell member is shown in Fig. 2 in the same relative position longitudinally with respect to Fig. 1 that it will occupy when inserted in the pencil body or barrel 111.

`While l have shown the lead propeller provided with a laterally projecting portion at its rear end as exemplitying my preterred form ot construction, nevertheless, l have in conception that such a lug extension may be provided at an intermediate point in its length tor co-action with the spiral way 12, in extension member 11 and that a similar projecting member may be fashioned on the propeller at the rearward portion thereof l'or coactive relationing with the corrugated portions 18, ot the shell portion 17. The eraser holder shown in Fig. 6 is inserted in the upper end otl the inner shell member 16 and tunetions to form a closure tor the upper end of the extra lead container and also hold a rubber for erasing purposes.

1n the structure herein presented I have directed thought to the development of a simple and cheap pencil structure comprising a. tip unit and main body portion that may be tricltionally joined, to the endet ready separation, also, to the simple union ot' the lead and lead propeller support with the tip to the end that by mere separation ot' the tip unit and main body member, ready access is had tor the entry ot lead sections by the mere removal of the lead propeller pin from the tip unit and whereby, mere joining action oi the tip unit to the main body, puts the pencil in condition forv operative functioning. n

More or less variation or the exact details ot construction is possible without departing from the spirit otl this invention; I desire, therefore, not to limit myself to the exact form of the construction shown and described, but-intend, in the following claims, to point out all of the invention disclosed herein.

I claim as new and desire to secure by Letters Patent 1. In a mechanical pencil, a hollow barrel torn'iing a handle portion, an inner tube in said hollow barrel ot' reduced cross-sectional area at one end, a tip rotatably and removably secured at one end ot said barrel, an extension on said tip adapted to extend into the reduced end ot said inner tube, a lead propeller in said extension, and a'clcarance space between said reduced end of' the inner tube. and said hollow barrel to receive extra leads which become readily accessible upon removal of the tip4 Q. In a mechanical pencil, a hollow barrel forming a handle portion, an inner tube held in said barrel and laterally spaced therefrom throughout a portion ot its inner end, a tip removably secured at one end ot' said barrel adjacent said inner end ot the inner tube, the space between the inner tube and the barrel forming a magazine tor extra leads available upon removal of said tip, and resilient securingl means associated with said tip for coaction with the lower end of saidhollow barrel to lrictionally and removably hold said tip in place thereon.

3. lln a pencil, a hollow barrel, an inner tube located within the barrel and having a reduced portion spaced from the interior ot the barrel to provide a lead magazine, said inner tube also having an enlarged portion providing` an extra lead magazine, and removable closure means for the respective magazines.

In witness whereof, 1 have hereunto subscribed my name.

JOHN STRAKA.

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