US1442817A - Pencil - Google Patents

Description

' Jam. 23, QZB. H A

J. MOORE PENCIL. F|| ED MAY 20. 1921.

INVENTOR 11 Q, jfl/17m j BY atented Jan. 23, 1923.

JAMES MOORE, OF STRATFORD, CONNECTICUT.

PENCIL.

Application led May 20,

T 0 all whom t may concern Be it known that I, JAMES MOORE, citizen of the United States, residing at Stratford, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Pencils; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable'otherskilled inthe art to which it appertains to make and use the same.

This invention relates to an improvement in pencils and has for its object to produce a lead propelling pencil of few parts that are easily assembled and efiicient in operation.

Referring to the accompanying drawings wherein the same figures and letters of reference indicate like parts throughout the several views:

Figure 1 represents a brokn view partly in section of the assembled pencil;

Figure 2 is an enlarged broken View partly in section of the forward end of the pencil;

Figure 3 is an enlarged detail view of the detachable tip;

Figure 4 is an enlarged detail view of the lead holding tube;

Figure 5 is a detail sectional view of the split anchor ring;

Figure 6 is an enlarged detail broken view of the wire coil and its enveloping tube;

Figure 7 is an enlarged broken sectional view of the outer shell or barrel, broken view of the cap, sectional view of the rotatable inner shell, and broken view of the wire coil and its tube;

Figure 8 is an enlarged detail View of the inner rotatable shell, and broken view of the wire coil;

Figure 9 is an enlarged detail view ofthe collar to which the Wire coil is anchored, and' Figure 10 is an enlarged broken detall view of the rotatable shell, and Figure 11 is a 4detail rear elevation of the split anchor ring. v

1 represents the outer shell or barrel of the pencil having the tapered end 1a into which the pencil holding tip 2 is inserted with its outer surface corresponding to the taper of the barrel. The tip has the lead holding channel 3 in alignment with the channel 4 in the lead holding tube 5. 6 is a thread formed on one end of this tube adapted to register with the threaded recess 7 formed in the inner face of the tip 2. 8 is another recess between the channel 3 and recess 7 and is a 1921. serial No. 471,151.

trifle smallerthanthe split end 9 of the tube 5 so as to impart a slight friction on a lead adapted to pass through the tip 2 and tube 5.

The split anchor ring 10 has a taper face corresponding to the interior wall of the tapered end 1a of the barrel. axial recesses 11 and 12`v the former to receive the inner end of the tube, 5, and the latter to receive the inner end of the tube 13 embracing the helical coil 14, which coil is anchored by one end in the recess 15 of the collar 16 secured to the interior of the rotatable shell 17 registering with the interior surface of the barrel 1. The recess 18, Figures. 7 and 9, serves as a bearing adapted be journaled on the outerend of the tube 13. The lead propelling follower 19 lies freely within the coil 14 and has the projection 20 extending through the elongated slot 21 of the tube 13.

A portion of the shell is severed to form thespring tongue 22, which spring tongue, when not forcibly compressed, will project above the outer surface of the shell as shown in yFigure 10. The outward indentation 23 is formed in the tongue to snap into the annul'ar housing 24 located at the end of the'v barrel 1 when the shell 17 is assembled within said barrel, and thus maintain the shell 17 in workable relation with the barrel. The shell cap 25 is adapted to embrace the'ou'ter end of the shell 17 and abut theend of the housing 24 of the barrel, and is held in frictional contact with the shell 17.

Assembling the pencil as-a whole is a sim- 14 to having been previously secured by one end to its seat 15 in the collar 16, then the tube 13 is passed over the coil and one end seated in the recess 18 and the opposite end inserted in the opening 12 of the split ring 10. The lead holding tube 5 is connected to the tip 2 and said tip inserted into the outer shell or barre-l and temporarily held thereagainst While the shell 17, with its before mentioned assembled parts, is inserted in the opposite end of the barrel with the recess 11 of the ring in alignment with the inner end of the tube 5, which end will be entered into such recess before the ring 10 has been compressed by itsengagement with the inclined wall a of the barrel.

When the shell 17 has been entered fai enough to bring the parts 23 and 24 into engagement, the split ring 10 will have been forced against the inclined wall a to close It has also the of the helical coil. Thev cap, may, however,

' port for thel follower.

be .assembled to the shell 17 before said shell is entered into the barrel.

Employing a separate tip for the barrel, and securing `the lead holdlng tube thereto,

-insures accurate alignment of their lead feeding channels 3 and 4.

While I show the coils 14 proportionately larger than the follower 19 it will be understood that they will in practice be reduced so l that their interior will form a guiding sup- The annular indentation 26 isformed near the -outer end of the. shell 17 to serve as means for-securing a rubber tip, not shown, in the mouth of the shell. As this indentation is,formed in the shell previous to the formation of the tongue, lit is evident that a` similar indentation, 26, will also appear in the tongue.

Having thus described my invention what I'claim is'z- 1. In a pencil, the combination of a barrel having a tapered end, an insertible tip corresponding to the tapered end of the barrel, said. tip having a lead holding channel and a threaded-recess, a tube having a threaded end therefor and a lead holding channel in alignment with the Vchannel of the tip, a split ring having a taper face corresponding tothe interior wall of the tapered end of the barrel, said ring havinga recess in which the inner end of the tube is seated and forcibly held therein by the grip of thesplit rin 2g In a pencil, the combination of a barrel, a rotatable shell mounted therein, a recessed collar secured within the' shell, a split ring vwith an outward indentation adapted to be .detachably secured tothe housing of the barrel, and a cap embracing the shell and tongue and in l,frictional engagement with said shell and tongue.

4. A pencil of.the character described comprising a barrel having one end tapered and the other end provided with an annular housing, ashell rotatably mounted within the barrelhaving a spring tongue provided with an indentationv adapted to interlock with said housing, a cap embracing the outer' end of the shelland in frictional engagementl therewith. a collar secured Within the shell, p

a helical coil anchored tothe collar, a lead propelling follower located within the coil having 'means for operatively connecting it therewith, a tube surrounding the coil having means for guiding the follower, said barrel having a tapered` end, a split ring within the barrel having a taper face corresponding to the interior taper wall of the barrel, one end of said tube located in said ring and its opposite end serving as a bearing on which the collar is journaled, a tip having a central lead holding channel, a lead holding tube secured to the tip having its `inner end located in the split ring and in alignment with the c oiltube so that the forcible engagement of the ring with the inclined wall of the barrel will firmly grip both tubes.

In testimony whereof I ahx my signature.

JAMES MOORE.

Images