US1508170A - Pencil - Google Patents

Description

F. W. DOLIER Sept 9 92 PENCIL Filed sept. 12, 1922 3mm/Hoz Patented Sept. 9, 1924.

basane FRANCIS `W. DOLIER, OF MOORESTOWN, NEW JERSEY.

, PENCIL.-

Applcaton filed September 12, 1922. Serial No. 587,768.

' To @ZZ whom t may concern.'

i Be it known that I, FnANois W. DOLIER, citizen of the United States, residing at Moorestown, in the county of Burlington and State of New Jersey, have invented certain new and useful improvements in Pencils, of which the following is a specification.

rlhis invention relates to pencils and writing equipment and pertains particularly to a transparent outer casing or sleeve mounted on the barrel of pencils and pens.

One of the objects of the invention is to provide a pen or pencil having either a decorated barrel portion which is protected by an outer transparent sleeve or which has an intermediate decorated sheet of thin material inserted between the barrel and the outer transparent sleeve. ,The decoration on the barrel or sheet might be either a name and address or some advertising data.

One feature of the invention relates to the combination with magazine pencils having one or both ends removable, thus facilitating the mounting of the transparent sleevepon the barrel and the positioning of the sleeve by a removable end. This application was divided from application Serial Number 510,492, filed October 26, 1921, since issued as Patent 1,436,581, NovemberV 21, 1922, which was directed to aA pencil of a type particularly adapted for use with the sleeve of the present invention.

The particular conguration and relative position of the parts is set forth in conjunction with a mechanical pencil of a desirable type in the following specification and claims, and illustrated in the accompanying drawing in which: f Y

Fig. 1 is an enlargedl view of a section taken centrally and longitudinally through the transparent sleeve and intermediate sheet between the sleeve andthe barrel of the pencil;

Fig. 2 is a side view of the unitary combined actuated screw and plunger, as removed from the pencil;

Fig. 3 represents an end view of the barrel of the pencil, showing the outer sleeve, the intermediate sheet, the barrel and actuated screw and plunger in position within the barrel and the plungerl within the central tube; and

Fig. 4 represents an end view of the actuating end piece, with the eraser removed, and illustrating the position in which the extremerear end of theactuating spring screw member is. secured to the actu ating end piece. i

Referring in detail to the drawing, 1 indicates the barrel of a pencil of the type described, enlarged considerably in Aorder to more clearly show the relative positionsv of the parts. 1a indicates the rear end of the barrel and 1h indicates the front end of the barrel, and these ends are provided `with the respective threaded outer portions 1c and 1?. Screw threaded to the end v1a is a rear end cap 2 having screw threads V2a onthe inner surface thereof engaging the threads 1c of the barrel. The rear face of the cap 2 is indicated at 2b, and centrally through y this rear face is an opening 2,?, the pjurpose of which will be described. The opposite end of the cap 2 provides a first annular shoulder or flange'surface -21having a thickness the same as the wall of the cap for cooperation with the sleeve, as will be described. The front end is provided with a screw threaded fastening cap 3 which has a rear portion 3 with threads adapted to engage the threads 1d ofthe barrel. Tapering forwardly from the portion 3a, the inner walls of the tip areiin'dicated at 3b and this tapered portion extends into a more sharply inclined part indicated at 3C. ,The

rear end of the cap is also pro-vided with the square cut .shoulder or annular flange surface indicated at Bd'corresponding to the shoulder 2d of the rear end cap and which cooperates with the sleeve, as will be described. indicated at Se and a restricted bore for providing a tight sliding fit for the lead is indicated at 3f. Between the points 3 and the bore 3f, there is provided a cylindrical portion having the walls 3g whichqprovides a loose sliding fit for thecentral guide tubey as will be described. Between the walls 3g and immediately adjacent the entrance to the bore 3f is the `annular inclined surface 3h The extreme tip of thevpencil is ,y

against which the central' tubeis adapted to rest in order to position the tube'centrally and bring-the bore of the tubeinto alignment with thebore 3H f The transparent sleeve 4 of thelpresentinvention, of Celluloid or other suitable matethickness as the width ofthe flanges, so that l the assembled pencil may provide a smooth exterior. Between the barrel l and the sleeve e there is inserted a sheet lfL of paper bearing suitable advertising or decorative material t'or display through the cylinder el, or the sheet la may be discarded and designs for artistic effect or advertising material may be carved on the outer surface of the barrel l and thus made visible through the cylinder 4i although protected trom actual wear by the outer transparent covering. The material o1 the threaded ends lC and ld, in this case the barrel l, serves as means for holding the end means with their 'flanges 2 and 3d in position adjacent the ends ot the transparent sleeve.

The operating mechanism of the pencil on which the sleeve ot' the present invent-ion is mounted will now be described. rit the extreme end of the pencil is the actuating end piece 5 which is formed, in the pencil illustrated, as a cylindrical cap having an end partition 5a positioned against the rear face 2b of the cap 2. The outer end of the cylinder 5 is turned inward or otherwise suitably provided with some gripping surtace as inl dicated at 5b to engage and hold an eraser. The partition 5a is provided with a central opening to be in alignment with and correspond to the openin(y 2C in the cap 2 for the reception of the rear end of the actuatingl screw and the' securing` oit an end between the plates 5c and in the space 5, as will be described.

A central partition 6 is securely fixed within the barrel by brazing, soldering or suitable means, and divides the inner bore ot the barrel into a front and rear chamber, the front chamber being a n'iagazine tor extra leads, and the rear chamber containing thc actuating screws. The partition 6 has an axial opening 6a for the reception ot' the guide tube as will be described.

The guide tube 7 is als 'i rigidly mounted within the opening 6a ot the partition 6 by brazing or soldering, and is thus fixed with respect to the barrel. The tube 7 has the extreme front end 7a proj ecting beyond the end of the barrel and adapted to engage the inclined wall 3h of the tip. The rear portion of the tube on the opposite side ot' the partition 6 is indicated at 7b and is provided with a slot through the wall thereof at 7", this slot extending from the rear end ot' the guide tube substantially all or' the way to the partition.

The actuating helically coiled spring screw member 8 substantially lills the diameter of the bore of the barrel and extends the full length of the rear chamber. lit will be noted that the member 8 is free to revolve within the circular walls of the barrel; that the lateral port-ions of the springl 8 are loosely positioned Within the barrel, and that the coils or turns of the member 8 are positioned apart a distance substantially as great as the cross section of the material ot the spring. rlhe extreme rear end 82L ot the member 8 extends through the opening 20 and is bent at right-angles lto the longitudinal axis ot the spring 8 and lined within the actuating end piece 5 by being soldered, brazed, or otherwise secured between the plates 5, which latter provide the space 5d having a width substantially the same as the width et the end 8a. in ll l the end 8 is illustrated as being continued through the opening 2 by an extension portion 8b, which latter is necessarily positioned axially. yllhe opposite end of the member' 8 or the front end thereol is indicated at 8C, which end normally should be located relatively close to the partition 6 so that the partition would prevent the actuated screw trom becoming untastened from the coils oit' the screw 8.

yl`he combined actuated screw and plunger 9 is illustrated in its removed position in Fig. 2 and in its assembled position with the other parts in Fig. l. rl`his structure is peculiar in that the plunger rod is continuous and formed in one piece with the actuated screw port-ion Qn. The member is inserted in the rear end ci? the barrel, when the cap 2 and actuating piece 5 with thc actuating screw are removed, by fitting the rod 9 into the slotted guide tube 7l. A right-angle shoulder 0b extends t'rom the straight rod Sl to the helical turn ot the actuated screw part 9a, this portion il" being illustrated in Fig. 3. Tl'ie right-angle shoulder 9b extends through the open slot 7 and is preif'ented from turning by the walls ot this slotted opening. Comparing the respective size and pitch of the turns of the helical screw portions 8 and )EL as shown in Figs. l and 2, it will be noted that these dimensions are substantially the same as may be compared by observing the distance rfi-B in Fig. l with the distance C-D in Fig. 2. Referring to Fig. l it will be noted that the turn of the member 9a' substantially lills the space between the adjacent turns ot the member 8.

The structure is assembled by first inserting a combined plunger 9 and actuated screw flu within the slotted tube so that the shoulder 9" extends tl'irough the slot. The rear cap 2 is then screwed into place by bringing the end 8C ot' the actuating screw into screw tl'ireaded engagement with the coils 9 and completing this turning movement until the end 8u is moved to its extreme position near the partition 6. The rear cap 2 is screwed into position on the threads 1c and soldered or brazed to prevent turning. "lhe screw threaded portion may be so termed that the binding ot the threads serves to hold the cap 2 :from turning with resp ct to the barrel. rlhe actuating end piece .5 may then be turned with respect to the cap 2 in order to adjust theposition of the plunger 9 within the guide tube 7. Leads are normally inserted by removing the front end cover 3 and slipping each additional lead as used into the front end of the tube 7, and then replacing the cap 3. Adjustment of the member 5 draws the plunger forward or backward, and the lead is forced from the guide tube 7 through the bore 3f into position for use at the tip of the pencil 3e.

The arrangement of the yworking parts provides a resilient springlike yielding movement to the lead which is most desirable in making for easy writing. The simplicity of the parts has provided an ineX- pensive construction and one which is not subject to breakage or repeated adjustments and the materials may be made from substantially any readily Worked metal.

rIhe present invention requires that the transparent sleeve be held on the pencil barrel and preferably this is effected by the use of members having flanges to hold the ends, at least one of which members is removable. The invention may be used with any transparent material and a-substitution of any form of transparent material will not depart from the scope thereof.

I claim l. In a pencil, a barrel having a front end and a rear end, a detachable cap secured over said rear end and having the front end wall of said cap providing a first annular flange, the height of which flange being its thickness, a front end piece detachably secured over the front end of said barrel and having the rear end wall of said front end piece providing a second annular iiange, the height of which is the thickness thereof, and a removable transparent sleeve fitted endwise over said barrel and positioned between the adjacent end walls of said front end piece and said rear' end cap and having a thickness of wall substantially the same as they projecting'height of said adjacent end walls.

2. In a writing implement, a. central transparent sleeve, separate end members abutting the opposite ends of said sleeve, and barrel means separable from each of said end members holding said end members in position at the ends of said sleeve.

3. In a writing implement, a central` transparent sleeve, separate end members abutting the opposite ends of said sleeve, barrel means separable from each of said end members holding said end members in position at the end of said sleeve, and a memberk within said sleeve bearing display matter andpositioned with the display matter next adjacent said transparent sleeve.

4. In a pencil, a barrel, a transparent sleeve positioned over said barrel, and stop members at the ends of said sleeve detachably secured to said barrel and holding the l sleeve in position thereon.

5. In a pencil, a barrel, a `transparent j sleeve positioned over vsaid barrel, and stop members at'the ends of said sleeve detachably secured to said barrel and holding the sleeve in position thereon, and having a thickness of wallsubstantially the saine as the thickness of the wall of the sleeve. f

In testimony whereof I afiix my signature.

FRANCIS W. DOLIER.-

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