US1420275A - Pencil - Google Patents

Description

LUCIEER J; MOST, OE NEW YORR, N. Y.,

PENCIL PRODUCTS CORPORATION, vIR/GINIA.

AssIGNOR, RY MEsNE ASSIGNMENTS, To

OF NEW YORK, N. Y., .A CORPORATION 0F i PENCIL.

Specification of Letters Patent. Patenfgd June j20, 1922,

Applicationv filed August 26, 1918; Serial No. 251,457.

To all whom it may concern.'

Be it known that I, LUCIFER J. MosT, a citizen of the United States, and residentl of the city of New York, in the county of New York and State of New York, have invented a certain new and useful Pencil, of which the followingis a specification.

This invention relates to pencils, and particularly to the type provided with mechathe cover of the supply-lead magazine, then'.

extracting a lead therefrom and hold it in hand, thenI closing this cover, then removing the lead-engaging cap, then inserting the lead into the writing end of the pencil, and then finally restoring said'cap to normal operative position.

The principal object of my invention is to vprovide an improved pencil wherein the above mentioned operation is greatly Simplified and saving of timeincidental to its use effected, and the improvements of which will be also conducive greatly toward simplification, compactness, and effectiveness of construction, and to the convenience, efficiency, and reliability of its service.

Other objects and advantages will hereinafter appear.

In the accompanying drawings,-

Fig. 1 is a general sectional elevation of the pencil.

Fig. 2 is a cross+sectional plan view, on an enlarged scale. of the pencil shown in Fig. 1,

'taken on the line .7e-m thereof.

Fig. 3 shows a modification of the shown in Fig. 1.

The pencil comprises a tubular holder or casing or body portion 1 having at its writing end 2 a cap or closure 3, at the extremity 4 of whichextends the point 5 of4 a lead 6 that is projected by mechanism 7, .within the holder 1, operated by the rotation'of a knob 8 located at the Opposite end v9 of the holder. To the end 9 of holder 1 is secured a flange l() forming part of the extremity of a tube 11 which extends within the holder 1 throughout its length and centrally along its longitudinal axis, andis provided with a thread 12 at its opposite extremity 13 nearthe writing end 2 of the holder. ing for a lead propeller comprising a guiding tube 14 for the lead 6, a narrower tubular stem 15, having a spiral propelling slot 15, extending from the guiding-'tube 14 and passing through the bearing-tube 11, a shouldered extremity4 16 of the stem 15 for retaining it in longitudinal position, and a. flange 17 forming part of the extremity 16 of stem 15'. To the flange 17 is secured a shell 18, the extremity 19 of which fits against the rim of the end 9 of the holder 1. An eraser 20 is fitted into the end21 of shell Said tube serves as a bear- 18 against the flange 17, and the knob 8 is ,stem 15 is rotated, by manipulation of ythe knob 8, the edge 24 of slot 15a bears against, the arm 23 and forces the bar 22 to move tof ward the writing end of the pencil and project the lead 6 forwardly. Rotation of the knob 8 in an opposite direction causes the edge 25 of propelling-,slot 15a to bear against the arm- 23 in an opposite manner and thereby draws' the propelling bar 22 inwardly to permit insertion of a new lead. The cap 3 is provided with a split extremity 26 a't its tapered end27, and a tapped end 28 which passes into the end 2 of holder 1 and threads o ver the shoulder 12 of the bearing-tube 11.

As the cap 3 is threaded in place'its split extremity 26, which is springy,`grips the point 5 of the active lead passing through the cap and thereby retains the lead against dislocation lin a forward direction and in a proper writing position. When the point 5 wears out during the writing the knob 8 may berotated and the lead 4 therewith propelled forwardly to project the point to the extent required.

Between the bearing-tube 11 and the wall of the 'holder l is located a corrugated shell 29, Fig. 2, which bears securely against said tube and wall and serves for efliciently spacing or steadying the tube 11 and the parts therewithin with relation to the axial centre line of the holder 1,' and also as a magazine means for a half dozen reserve leads 6 that vare located between its corrugations 30 and the reserve Aleads in the magazine are freev from any interference with the actlve lead.

while they are being slid from the magazine. When the lead 6 that is being utilized (namely, the active lead) wears out completely and replenishment thereof is required, the knob 8 is rotated to .draw inwardly the propelling bar' 22 to the position Y shown, and then the cap 3 may be unthreaded'and with its active lead, removed from the body portion, whereupon one of thereserve leads may be slid or removed from the magazine or receptacles 31, through the end 2 of holder `1, for insertion into the guidingtube 14 in the position/shown, after which the cap 3 may be again threaded in place and restored to its operative position. The guiding tube 14, for theV purpose of the claims is apart of the propelling mechanism and its prlncipal function is to guide the active lead in its passage through the closure cap 3 and it is immaterial for the purpose ot the claims whether or not thisvtube is carried by the body portion or the closure cap. 'llhe relnewal of lead is thus readily, rapidly, and

conveniently accomplished by the mere unthreading ot cap 3 at the writing end of the pencil, extracting one of the leads 6 right thereat from the holder and inserting it into guiding-tube 14, and then restoring the cap 3 in operative position.

According tothe modification shown in Fig. 3 the cap 3 slips into the end 2 of holder 1 and is held therein merely by friction as shown at 32, thereby obviating the need ot a threading operation when removing the,

cap from and restoring'it to `operative relation with the holder 1. Should it be desired to utilize the eraser 2() during writing, the operating knob 8 may be readily removed, by merely slipping it oi'l' the shell 18. and the eraser thereby rendered available, while when the eraser is not in use the knob S-may be restored in p-lace and manipulated to operate the lead projecting mechanism.

Variations may be resorted to within the scope of the invention.

A very important advantage resides in the fact that the inner nozzle projects beyond the terminal of the barrel propel'. lVhen it is desired to replenish the supply ot' lead in the central tubular member, the outer nozzle is removed and the end of the inner nozzle, which is rigid, is tapped forcibly against the hand or other suitable support. As this is done all of the leads in the magazine will be are supported or braced towards their 'in' ner extremities by the screw-threaded base of the rigid nozzle and this precludes any likelihood of breaking the leads, due to their inherent thickness and fragility, as they are severally withdrawn.

Having thus' described my invention, ll claim 1. ln combination in a pencil, a body portion, a lead propelling mechanism therein, a magazine within the body, reserve leads in said magazine adapted to be slid therefrom, an active lead in, said propelling mechanism, a removable closure cap for the body portion, the active lead projecting through said cap, and means on said cap for gripping said active lead whereby when the cap 1s removed, the active lead is also removed from therpropelling mechanism, leaving the reserve leads in the magazine free from interference with the active lead.

2. ln combination in a pencil, a body portion, a lead propelling mechanism therein, a hollow tube, a magazine within the body` reserve leads in said magazine. adapted to be slid therefrom, an active lead in said hollow tube, a removable closure cap tor the body portion. the active lead projecting through -said cap. and means on said cap tor gripping said active. lead, whereby when the cap is removed the active lead is also removed from the hollow tube leaving the reserve leads in the magazine tree from interference with the active lead.

3. In combination in a pencil, a body portion. a lead propelling mechanism teminating in a hollow nozzle. a magazine within the body. reserve leads in said magazine adapted to be slid therefrom to a point coextensive with the end of said nozzle, an active lead in said hollow nozzle, a'removable closure cap for the body ortion, the active lead projecting througli cap for gripping said active lead whereby when the cap is removed the active lead is also removed from the nozzle leaving the reserve leads in the magazine `tree from interference with the active lead.

Signed at the city of New York, in the county ot' New York, and State ofNew lifork, this 22nd day ot ugust,'A. D. 1918.

LUClFER J. MOST.

said cap. and means on said

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