US605657A - Pencil - Google Patents

Description

(No Model.)

B.H.T0QUBT.

PENCIL.

Patented June 14, 1898.

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BENJAMIN H. TOQUET, OF ESTPORT, CONNECTICUT.

Planen..l y f i SPECIFICATION forming part of Letters Patent No.605,65'7`, dated June 14, 1898.

Application filed .Tune 19, 1897. Serial No. 641.473. (No model.)

To all whom, it may concern.-

Beit known that I, BENJAMIN l-I. TOQUET, a citizen of the United States of America, anda resident of Westport, Fairfield county, in. the State of Connecticut, have invented an Improved Pencil, of which the following is al specification.

The ordinary wood-covered pencil, with graphite or other marking-core, is the cheapest formel pencil; but it has its disadvantages due to the need of sharpening the point by cutting awaythe covering and core by a knife or other means, and also in the consequent shortening of the pencil down to a useless stump. Endeavors have been made to do away with some of these disadvantages by making the covering of the core of layers of paper or wood, which can be removed by the finger as the core Wears down, but such constructions have not been satisfactory. The most advantageous forms of pencils are those in which the core is moved forward within the cover orholder, which remains of uniform length notwithstanding the wear of the core, and in which the core can be removed; Vbut all such pencils have been heretofore more or y less expensive.4 y

By my present invention I am enabled to i make a very simple construction of pencil with a movable core to be fed forward as the point wears and at scarcely any greater cost than the ordinary wooden-sheathed pencil, which has to be sharpened'with a-knife or other such instrument.

In the accompanying-drawings, Figure 1 is a longitudinal section of a pencil constructed in accordance with my invention. Fig. 2 is a view of'a suitable pusher to be used for pencils of the construction shown in Fig. l. Fig. 3 illustrates dierent forms of p awls which may be employed in my pencils. Figs. 4. and 5 are sectional views illustrating modifications.

A Referring to Fig. l, is the covering or. sheath, which may be made of any suitable material, such aswood or papier-mache, but I' prefer to use Wood, such as employed in the manufacture of the ordinary lead-pencils, which have to be sharpenedby cutting the wood, asbymeans of a knife or other instrument. y

B is the'core of graphite or other marking material, which, instead of being iixed in the wooden sheath with glue, as usual, is made toriit therein by friction only. The groove for the core is open at the back end and may be tapered tol a smaller diameter at or near the point no' of the pencil, so that when the exterior of the sheath is made with a tapering point the core can be thus held-with a sufficient frictional .and elastic grip at the point to prevent its dropping out, even should it not be held firmly elsewhere in the sheath. Other means may be provided of insuring a frictional hold on the core near the point. For instance, small springs s may be let into notches in the sheath to bear against the core, as-shown in Fig.. 4, or a sheet-metal ferrule, as at f, Fig. 5, may be appliedto the point of the cover or sheath for the same purpose.

To feed the core forward as it wears at the point and to holdit in place, I provide a pushrod R, Fig. 2, and a movable lpawl P. The push-rod maybe provided one for each gross or other suitable quantity of the pencils, but each pencil has its own pawl P, put into the top of the pencil behind the core'at-V the open back end. This pawl may be' of any suitable form or material, so long as it .will enter the groove inthe sheath A back of the core and so engage with the interior walls or bore of the sheath as to prevent the core from being vpushed back, and yet permit the core to be pushed forward by means of the'p'usher whenever the wearing down of the' point of the core may require it.

In Fig. l, at P, I have shown the pawl as made of a piece of wire doubled and with ends provided with outwardly-projectin g engaging teeth. v

At P in Fig. 3 I have shown a modiiied form of the doubled or split pawl, while at P2, I have shown a pawl consisting simply of a plug with saw-like or file-like teeth.

To push the core forward, the end of the push-rod Ris simply introduced into the open back end of the pencil-sheath, as will be understood.

I claim as my invention- 1 A pencil having a sheath open at the back end for the insertion of a push-rod, a core in the sheath and a movable pawl within lthe bore of the sheath and in the rear of the core, as and for the purpose described.

Core, and a friction means for the core near the point of the sheath, substantiallv as described.

In testimony whereof I have signed my 15 name to this specification in the presence of two snliseribing Witnesses.

BENJ. ll. TOQUE'I.

\Vit11esses:

F. WARREN WRIGHT, HUBERT IIowsoN.

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