US1097238A - Pencil. - Google Patents

Description

W. H. KRBLL.

PENCIL.

APPLICATION FILED 001211, 1912.

Patented May 19, 1914.

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a rzey Il Il Il uhr z ik INI@ ' and the pencil is H. KRELL, OF CHICAGO, ILLINOIS.

PENCIL.

l lSpecification of Letters Patent.

Patented May 19, 1914.

Application iled ctober 11, 1912. Serial No. 725,215.

, To all 'whom t may concern `Be it known that I, WILLIAM H. KRELL, a citizen of the United States, residing at Chicago, Cook county, Illinois,- have iiiventecl certain new and useful Improvements in Pencils, of which the following, taken in connection with the drawings, is a description.`

My invention has forIl its object the production of a pencil which is so constructed that it is not necessary to sharpen the point when it becomes worn to the wood, but the user simply advances the lead, by advancing the band encircling the pencil handle the desired distance through tlie end of .the pencil holder or at once ready for use.

. Other featuresl of advantage of my construction will be apparent from the followdescription of the device. A

In the drawings I have illustrated what I "now consider the preferred form-cf my con-v struction, although it is obvious that the details thereof mayl be changed without departin from the spirit of my invention, which as for its main purpose a pencil hav` ing means for advancing the lead through x one end of the casing `retaining the same,

leaving it always ready for use without necessity for sharpening the same.4 n In these drawings: Figure 1 is a plan view of the pencil; Fig. 2 is a longitudinal section of the same taken onY line Fig. 3 is a transverse section on line 3-3 of Fig. 4 is a sectional view of the workp ing mechanism looking at the opposite side of that shown in Fig. 2; Fig. 5 is a trans-l verse sectional view taken on line 5-5 of Fig. 6 isv a .detail view of the lReferring to the drawings A represents the barrel or casing forming the handle of the encil, which 1s preferably cylindrical i and is provided with a plug or' in ape, cap A at one end thereof and a funnelshaped point A2 at theloppovsite end. Either of these endfittings may be screw threaded -to the barrel A, or may be held in place by frictional engagement alone.

The barrel A is formed of any materialsuitable for the purposeand is bent to the sha e shown in cross section in Figs. 3 and 5, ldr'ming the outer tube Apand the inner tube A, having therebetween a chamber a, and an opening a" extending longitudinally thereof. ThisY chamber is utilized for the vlead liold` of a piece o metal having casing containing the lead,`

2-2 of Fig. 1.

purpose 2of carrying an additional supply of leads b, b (Fig. 5), from which to replace the lead in the point of the casing when it is worn'out. The inner .tube A is provided .with aplurality of openings a, extending. longltudinally thereof as shownin Figs. 2 and 4.

Positioned within the -central bore B is a member B', which is formed a clamp b2 atone end thereof, within which the lead b" is held when in position for use. Projectin from the lead holding member is a bandl which extends through theslot a and encircles the barrel A. Secured within the lead holdingmember is a `wire spring C havin va projection o which is adapted to vexten into one of the openings a and hold the same in fixed position with thei point of the lead, b., extending from the end of the casing and'ready for use. `The wire forming this springis extended outwardly through the openingcz inthe band C, to forni a thumb piece c3 by means of which 80 the spring ma. be depressed from the out-x side of the casing or barrel A.

`" The lead holding member B is recessed as at 5.3 at a k1point directly. beneath the proection c o the spring to allow for the de- 35 vpression of the .spring when it is desired to reverse the lead b. Pressure upon theJ thumb piece o3 depresses the spring c carrying with it the projecting end thereof which extends into one ofthe openings a in the barrel A. A

When in use the. pressure against the point of the pencil is being exerted against the ring c which extends into one of the recesses a. in the inner tube and locks it against any backward movement. When the point of the pencil is worn close to the cas-fy ing, the band C is advanced toward the point ofthe pencil until the-spring drops into the next recess an'd thereby holds the lead b in fixed position until it is again worny close to the casing, when the band is `again advanced to the next recess -in thel in- One of the. advantages in a pencil of this kind is that the point may be quickly drawn inside the casing by moving the band C upwardly a single notch or recess, thus protecting the point from being broken when of the openings in said inner tube as the lead holding member is advanced to lock the same in lixe'd position, a band encircling the casing and engaging said member through the elongated opening whereby the lead holding member may be moved in either direction and locked in fixed position, substantially as described.

In testimony whereof I- have signed this specication in the presence of two subscribing Witnesses.

WILLIAM H. KRELL.

Witnesses: i l

A. V. WELDON, WELLS 'GooDHUn

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