US1450005A - Pencil - Google Patents

Description

Maf. 27, 1923.

LMOORE.

PENCIL. 'FILED ^Pn.,1922.

UINVENTOR.

ATTORNEY www Y Patented Mar. 27, 1923.

UNLTED STATES JAMES MOORE, OF STRATFORD, CONNECTICUT.

PENCIL.

Application filed April 6,

To all fic/0m t may concern.'

Be it known that l', Janine Moons, citi- Zen of the United States, residing aty Stratford, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Pencils; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to malte and use the same.

My invention relates to pencils of the magazine type, and is an improvement on my (zo-pending application, filed May 20, 1921, Serial No. 471,151. ln said co-pending application, the lead propelling follower was advanced and retreated through the medium of a helical coil which required the same effort and time to return the follower as it did to advance it. My present irnprovement consists in locating a coiled spring within a tube, with the major portion of the follower within the spring, and advance the follower by means of a cord and pulley or drum to advance the lead and compress the spring and store up tension therein for a quick return of the follower when the lead is exhausted, and to make room for the insertion of a new lead. Ilt further consists in utilizing the space surrounding the tube as a lead holding magazine.

Referring to the accompanying drawings in which similar reference nuiuerals designate similar parts and in which- Figure 1 is a view partly in section of the pencil showing the follower in its normal open position;

Figure 2is a view partly in section showing the follower fully advanced and the spring compressed, and the cap removed to place the follower under the reaction of the spring;

Figure 3 is a detail side elevation of a part of the clutch mechanism for rotating the winding drum;

Figure 4 is a detail end elevation of Figure 3;

Figure 5 is a detail end elevation of the clutch end of the winding drum;

Figure 6, is a detail side elevation of the winding drum and stud on which it is journaled;

Figure 7 is an enlarged broken sectional view of the forward end of the casing,

1922. Serial No. 549,959.

broken view of the tube, and a view of a lead being delivered from the magazine through the collar located in the forward end of the casing;

Figure 8 is an enlarged detail front elevation of the collar; c

Figure 9 is an enlarged sectional view of 'the casing and tube on line 9-9 of Figure 1;

Figure 10 is an enlarged'sectional view on line 10-1O of Figure 1;

Figure 11 is an enlarged detail broken view of the pencil tip, and

Figure 12 is an enlarged sectional view of lthedtube and colla-rs and broken view of the 1 is the casing embracing the several parts of the pencil mechanism,2 is a collar secured within the casing having the threaded portion 3 for the reception of the threaded end of the tip 41. 5 is a tube provided with integral flanges or wings 6 projecting laterally therefrom and touching the interior wall of the casing, Figures 9 and 10. 7 and 8 are portions of the tube extending beyond the flanges., the former passing through the collar 2, Figure 12, and is firmly anchored therein, while the latter is anchored'in the collar 9, which collar is also secured within the casing l, Figures 1 and 2.

10 is a pin anchored in the collar 9, see also Figure 12. on which the drum l1, Figures 1, 2, and is rotatively mounted. The member 12 is inserted in the mouth of the casing 1 with its bead 13 forcibly engaging the bead 14 of the casing. Grooves 15, when engaging the projections 16 of the drum 11, form a clutch connection for rotating the drum. The forward end of the member 12 frictionally engages the inner wall of the casing due to the kcrfs 17 formed therein. 18 is the usual erasure mounted opposite the clutch grooves 15, and 19 is a bayonet slot adapted to receive the indontations 2O of the cap 21.

22 is a coiled spring within the tube 5, and 23 is the follower locatedwithin the coils of the spring. The extension 24 of the follower projects through and is guided in the channel way 25 and terminates in the eye 26. The cord 27 is att-ached to this eye and vfrom thence passes through the curved groove 28, formed in the collar 2, and its opposite end is attached to the drum 11, Figure l.l The inner end of the lead 29 is' also l l l lead through the medium of the lead propelling follower, the spring is also carried along with the follower until it is halted by an obstruction lying in the path of its advance movement. ln the present instance, this obstruction is the beading 80, Figure 2, which will cause the spring to be gradually compressedV by the continuous advancement of the follower until the lead has been practically exhausted with the follower and the compressed spring in the position shown in Figure 2. v

To inserta new lead, the tiplA is detached, Figure 7, and also the cap 2l with the clutch member as shown in Figure 2, whereupon the stored up tension in the spring 22 will force the follower back to its open position shownr in Figure l. This backward movement will also unwind the cord 27 from 'the drum.k The new leads 3l, as before nientioned, are located within the casing below the lianges 6, Figures 9 and l0, of the tube. 32 is an opening in the collar 2 through which a lead is delivered, Figure 7, by simply tilting and slightly rotating the pen cil until one of the leads is in alignment with said opening. Y

The friction-al engagement of the windingmember 12 with the inner wall of the casing is sufficient to prevent the reaction 'of the spring unwinding the cord from the drum until after the clutch mechanism is detached.

`The spring may be of any required length, its object being to store up sufficient tension to unwind the cord from the drum and force back the follower, and it is necessary to attach it to the follower, as shown in Fig. i2.

'A pencil constructed as above described is adapted to use longer leads than commonly used, and a larger magazine for eXtra leads.

When the pencil is not in use, the outer end of the lead will be fiushwith the mouth of the tip, and can be forced outfor writing by a slight winding turn ofthe drum,and can readily be pushed baci; against thefollower by the versed for lthat purpose finger when the drum is re- While l show clutch mechanism for actuating the drum, any otherwell known ymechanism to serve the purpose could. be substituted therefor. y

Having thus described my l claim is v i l.y A pencil. of the character described, comprising` a casing, collars secured therein, a tube secured to the collars, a lead propeiling follower within the tube, a helical spring` within the tube, a winding drum, a cord secured to the drum and follower', ra nd means for rotating the drum to govern the movement of the follower. l

2. A pencil of the character described, comprising a casing, a tube secured therein, a helical spring in the tube, a follower within the spring, a winding drum, a cord at tached to the drum and follower, means for supporting the cord, and meansfor rotating the drum. i

3. A pencil of the character described, comprising a casing, a tube secured therein, a helical spring in the tube, a follower within thespring, a winding drum, a cord connecting the drum with the follower, means for rotating` the drum to advance the fol lower and springand store up sufficient tension in said'spring to return the follower when the drum is released.

t. A pencil of the character descrioed,

'comprising a casing, a collar anchored within the casing, a tip detachably secured to the collar, a tube having a channel way, said tube secured to the collar and projecting within the tip, a helical spring'withinthe c tube, a follower located within the spring and guided within the channel way, a winding the follower, means for rotating the drum to advance the follower to compress the spring and thus store up sufficient tension therein to return the follower when the drum is rel leased.

5.l A pencil of the character described, comprising a casing, a tube anchored within the casing, a follower located within the tube, a winding drum within the casing, a

cord connecting the followerl with the drum,

and means forrotating the drum to control n the longitudinal travel of the follower.

In testimony whereof l aflix my signature.

JAMES MOORE.

drum, a cord connecting` the drum with invention vwhat

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