US1327236A - Pencil - Google Patents

Description

H. HESS.

PENCIL.

v APPLICATION FILED IIov.21| I9I5.

1,327,236, Patented Jan. 6,1920.

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vnimmt Huss, or PHILADELPHIA., rnNivsYLvAivIa.

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Specification of Letters Patent..` i

Application med November 27, 1915; serial No. 63,758. v

To all 'whom t may concern:

Be it known that I, HENRY Huss, a citizen of the United States, residing at 'Philadelphia, in thecounty of Philadelphia and State of Pennsylvania, have inventedcertain newv the end of the lead may be exposedy as the same becomes worn in use without the necessity of cutting away the inclosing holding body.

l/Vith this end in view, my invention consists in applying a reinforcing covering to the slender marking lead so as to produce a core, and in inclosing this core in a suitable covering to produce a holding body, the said two coverings being of such form that they may be removed in successive sections to eX- pose the point of the lead. By this means, and on account of the slender or attenuated character of the marking lead, no sharpening or reduction in cross section ofthe same will be necessary to4 produce a point fine enough for use, while at the same time the slender lead willl be given such reinforcement as will enable the main covering or holding body to be applied without danger of breakage of the lead.

In the accompanying drawings:

Figure l is a longitudinal section through a pencil constructed in accordance with my invention.

Fig. 2 is a view showing how the reinforcing covering is applied to the slender lead to produce a core.

Fig. 3 is a longitudinal section through the lead and reinforcing covering after the application of the latter.

Fig. 4 is a view showing how the core produced by the application of the reinforcing covering is inclosed in the holding body' to produce the completed pencil.

Referring to the drawings:

My improved pencil consists of a marking lead or crayon 1, which is of slender or attenuated dimensions so that it will not be necessary to cut away the material to produce a sufficiently ne point for use. In

other words, by the employment of a narrow or slender lead a marking point will-be presented at all times of suiiicientfinenessfor use. 2 represents a reinforcing covering which is applied tothe leadfor-the purpose of reinforcing the same and preventing lits breakage, which would otherwisel beapt 'to occur. The'lead and covering thusapplied forms in eect a core which is inclosed in fa holding body 3v applied to theeXterior of the core. closing body are of such -constructionand so applied that they 1may 'be removed 'in suc'-l cessive sections from the frontend of the pencil to expose a fresh portion of the marking lead as thev point wears away in use.

The reinforcing covering in` the present instance is in the-form ofv a flexible sheetl in diagonal relation thereto, and 'when com- Patented aan. s, ieee@ 'I he reinforcingcovering and inpletely wound thereon it will present at its end a conical terminal portion lc made up of the ends of the over-lapping spiral coils. i

The length of the sheet is vsuch that a core will be produ-ced considerably less in diameter than the completed pencil, say of an inch in a pencil of an inch in diameter.

The inclosinoV body 3 consists of a sheet 3* preferably of paper and containing parallel weakened lines 3b, which strip is wound on the core in the same manner that the reiny forcing strip is applied to the lead, but preferably with the weakened lines at a less angle relatively to the axis of the lead. Asa result the conical portion 3C of the body, produced by the overlapping ends of the successive coils will extend at a less slope or angle than the conical terminal portion 1 of the reinforcing covering, the latter being therefore blunter and more abrupt, so

that it will more strongly support the marking lead at its extreme effective point..

In the use of the pencil thus produced, when the point of the markinglead becomes worn down, a section of the outer covering may be removed by tearing the same along the foremostv weakened line 3*. This will expose a limited `portion of the inclosed surface of the reinforcing covering, and this in turn may be removed by tearing along the foremost weakened `line lb so as to eX- pose a suitable surface of `the marking lead within. l

While in the accompanying drawing and foregoing description I have disclosed my invention in the specific form which I prefer to adopt, it will be understood that the invention is not limited to the particular details disclosed but that various changes, such as will suggest themselves to those skilled in the art, may be made without departing from the limits of my invention. For instance the reinforcing covering and inclosing body may be constructed of other and different forms, provided that the slender marking lead will be given proper support, and provided that the coverings may I 'be removed in successlve sections to expose freshportions of the lead as the same becomes worn in use.

Having thus described my invention, what I claim is: p

l. In a pencil, the combination of an attenuated marking leady or crayon, a flexible sheet wound-thereon to produce a relatively thin preliminary covering for the lead to reinforce vthe same against breakage in subsequent handling, said sheet being provided with weakening lines to permit it to be removed from the lead in sections, and a second -eXible sheet wound around the 4reinforcing lcovering and forming a stiff substantial holdingbody of relatively greater thickness than the reinforcing covering, said second sheet being also provided withweakening lines to permit the same to be removed in sections. p

2. In a pencil,'the combination of a marking lead or crayon, a covering for the lead consisting of a paper sheet woundspirally thereon and producing a core, an inclosing holding body for the core consisting of a sheet wound spirally on the core at a different angle from that of the first sheet, the said sheets being adapted tol be un-Wound and removed in successive sections to expose the point of the marking lea-d; whereby the inner covering will present-a blunter terminal portion ythan that of the inclosing body and will more strongly support the point of the marking lead. l

3. In a pencil, the combination of a marking lead or crayon, a covering applied thereto to reinforce the same and produce a core,

-and a second coveringapplied to the core to form a holding body, the ends of said two coverings sloping backwardly from thel end of the lead, the reinforcing covering at a greater slope than the surrounding covering, and said two coverings being adapted tobe removed in sections to expose the point of the marking lead.

In testimony whereof I have affixed my signature.

` HENRY IIESS.

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