US1163674A - Pencil. - Google Patents

Description

E. W. McCARROLL.

INVENTOR @Oa/rd, 6M

Patented Dec. 14, 1915.

PENClL.

APPLICATION FILED JAN.2. 191s.

WITNESSES EDWARD W.. MoCARROLI or PITTSBURGH, PENNSYLVANIA.

' rENoI Specification of Letters Patent. I Patented Dec. 14,1915.

Application filed January 2. 1915. Serial No. 166.

To all wk-0m it may concern I I Be it known that I, EDWARD \V. MoCAR- noLL, residing at Pittsburgh, of Allegheny and State of Pennsylvania, a citizen of the United States, havev invented or discovered certain new and useful Improvements in Pencils, of which improvements the following is a specification.

As usually constructed, lead pencils provided with erasers are frequently'unsatisfactory, either because an insufiicient quantity of eraser material is employed, or be cause of the insecure attachment of the eraser to the pencil proper.

It is the object of my invention to provide a lead pencil, having an adequate eraser securely attached to it, the pencil being so constructed that it may be economically manufactured.

In the accompanying sheet of drawings, forming part of my specification, I have illustrated two embodiments of my invention.

Figure 1 is a perspective view of the penoil, the eraser being detached from it; Fig. 2 a perspective view of the preferred form of eraser; Fig. 3 a side view of the finished pencil made of the parts illustrated in Figs. 1 and 2; and Fig. 4 a side view of another form of finished pencil.

In the practice of my invention I construct the pencil, in the usual manner, of

two oppositely-disposed strips of wood of These strips may be of any suitable form, and, as shown particularly in Fig. 1, may be semi-cylindrical portions 1 and 2, suitably secured to each other as by glue, the longer portion or strip 2 extending beyond the shorter one at the outer end of the pencil. The stick of graphite 3 is contained, in the usual manner, in oppositely disposed grooves of the strips 1 and 2; and preferably does not extend beyond the outer end of the shorter strip .1. As shown, the graphite extends just to the end of such strip.

The eraser which I provide extends from the outer end of the shorter strip, 1, and is unequal lengths.

secured to the substantially plane face of the projecting portion of the longer strip 2. Preferably the eraser is of the form illustrated in Fig. 2, and comprises asubstantially semi-cylindrical portion 4, having a central bead 5 adapted to fit into the groove of the projecting portion of the strip 2, and

having also a tlp 6 adapted to project over in the county the end 'of such strip. -I-Iowever,lthe tip 6 may be omitted, as in the form shown in Fig. at.

ing it to the strips 1 and2 contact therewith, and, if desired, a suitable metal band 7 may be used for additional security, as is shown in Fig. 4. If neces sary, to cause the eraser to adhere firmly to the wood when attached thereto by glue, the contacting faces of the eraser may be provided with strips of cloth or other material applied thereto during the molding of the eraser.

The advantages of the pencil thus described are economy in manufacture combined with utility in service. The Wood strips 1 and 2 may be prepared in the usual manner, and because of their unequal lengths there will be a saving in wood. Also, by providing sufficient graphite to extend only to, or nearly to, the outer end of the shorter strip 1, the graphite, usually thrown away with the short unused end of the pencil, will be saved. Because of the extended area of connection, there will be little liability of the eraser becoming detached. This connection is further strengthat all points of ened by the engagement of the head 5 with the groove of the strip 2. As the eraser is worn away, the outer end of the strip 2 may be cut away to expose more of the eraser, and this may be done without materially weakening the connection of the eraser to the wood strips.

I claim as my invention:

1. A lead pencil comprising two oppositely-disposed strips of wood of unequal length, the longer strip projecting beyond the shorter at the outer end of the pencil, and an eraser extending from the end of the shorter strip and secured to the side of the projecting portion of the longer strip of wood.

2. A lead pencil comprising two oppositely-disposed strips of wood of unequal lengths, the longer strip projecting beyond the shorter at the outer end of the pencil, and an eraser secured to the end of the shorter and to the side of the longer strip of wood.

3. A lead pencil comprising two oppositely-disposed substantially semi-cylindrical strips of wood of unequal lengths, the longer strip projecting beyond the shorter at the outer end of the pencil, therebeing no graphite in the pencil beyond the end of The eraser may be attached by gluj stantially plane side of the projectingportion of the longer strip.

4;. A lead pencil comprising tWo oppositely-disposed substantially semi-cylindrical strips of Wood of unequal length, the longer strip projecting beyond the shorter at the outer end of the pencil, the graphite 10 extending only to the end of the shorter strip, and an eraser secured to the ends or each strip and to the side of the projecting portion of the. longer strip.

In testimony whereof I have hereunto set my hand.

EDWVARD W. MCCARROLL.

WVitnesses:

PAUL N. CRITGHLOW, FRANCIS J. TOMASSON.

Copies of; this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. G.

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