US1590126A - Self-feeding pencil - Google Patents

Description

June 22 1926.

G. .T. SHELEY SELF FEEDING PENCIL Filed July 26 ATTORNEY Patented June 22, 1926.

rseaize GEORGE TILLIIIAN SHELEY, OF INDIANAPOLIS, INDIANA.

sum-FEEDING PENOiL.

Application filed July 26, 1924. Serial No. 728,432.

This invention relates to new and useful improvements in pencils and more particularly to the magazine type. The main object of my invention is a provision of magazine type pencil wherein a plurality of leads are contained within the body of the pencil and positioned ready to be fed to the retaining point as the different leads are used or worn off.

'Another object of the present invention is the provision for magazine pencil incorporated therein suitable means for normally retaining the loose leads within the magazine while the lead being used is in its peratlve position and so retained until after a pre-determmed amount of thelead being used has been worn off at which time the retaining member will be automatically actuated for releasing one of the leads within the containing magazine.

Another object of my invention is a pro vision of a magazine pencil having chamber therein for containing a reserve supply of leads and so positioned with respectto the outlet channel for the leads whereby the leads contained-therein will be fed into the outlet channel upon a predetermined amount of the lead in the channel being used the leads within the retaining point will be automatically fed through the channel and manually operated meansis provided for forcing the lead through the channel and projecting the outer end thereof through retaining point. I

With the above and other objects in View, the invention consists in the novel features of construction, the combination and arrangement of parts hereinafter more fully set forth, pointed out in the claims and shown in the accompanying drawings, in which:

Figure 1 is a longitudinally sectional view taken through a pencil constructed in accordance with my invention,

Figure 2 is a transverse section on the line 22 of Figure 1, p

Figure 3 is a transverse section on the line Figure 7 is a detaihsectional view of the plunger guide illustrating the plunger in elevation therein and the manner in which the same is advanced or retracted through the guide. I

In carrying out my invention I provide a tubular body member 1 having tapered end 2 forming restricted mouth portion 3. Arrange-d within the body 1 are the guiding and feeding tubes and 4 respectively. The tube 4- constitutes the feeding tube the outer end of which extends into tapered end 2 of the body 1 to. a point adjacent the restricted mouth portion 3 whereby the leads therein may be readily fed through the. mouth 3 and be projected beyond the tapered end 2 ready for use;

Communication between the chamber 5 and tube 4: is readily provided by means of 1nclined wall 6 which is so provided as to readily guide the leads-7 contained within the tube or chamber 5, into the, feeding; tube 4. i

The upper ends of the tube 4: and chamber 5 terminate into enlarged chamber 8 which extends out beyond the end of the bodyl andhas arranged within its outer end a plate 9 having an opening 10 adjacent its center whereby the leads used in the pencil may be readily inserted within tube or chamber 5. This plate surrounds the outer end of the plunger tube 11 in which is mounted the plunger 12. The lower end of this plunger is provided with a lug 13 which is disposed within a guide slot 14 in the tube 4 to retain the plunger against rotation. The tube 11 is provided with an oblique slot 15 one of the edges of which is provided with an inwardly extending tongue 15 di posed between the convolutio-ns of the coil 7 ing the plunger within the tubes 4 and 11 in order to advance the lead toward the restricted outlet 8. Y c

The feeding of the leads to the tube 4 is controlled by means of spring member which includes in its construction a loop 16 enrbracmg the tube 4 at point adjacent to. its outer end and extending longitudinally of the tube 4 is a spring arm 17 terminating into a V-shaped bend 18 which is movable through a slot 19 formed in thetube 1.. The retaining member formed by the bend 18 extends around to the other side of the tube 1 at right-angles and then projects longitudinally as at 20, parallel with the chamber 5 and,

tube 1, and is provided with a curved end portion 21 which projects ina direction directly opposite the bend '18 itilCllS"IilOV21l3lG through a slot 22 formed in the wallet the.

chamber 5 so asto be moved into and out of the chamber 5. of my improved retaining member is apparent from the following 1'' As the lead passes through the tube t toward the restricted outlet 3 thelead will engage the contour of the bend 18 forcing the same outwardly through the slot 19 and arrange the same in the positioiishown in full lines in Figure 5,the movement will have a tendency to move the grooved end 21 inwardly toward the slot 22 anddispose the same within the chamber 5, forming suitable stop 01" the remaining supply of reserve leads within the chamber and preventing them from droppingdownwardly onto the V inclined shoulder- 6. It will. be apparent from the operation that after the end of the leadgbeing used has passed the bend 18, the resiliency of the arm 17 will move the bend'l'8 inwardly through the slot 19 into the tube 1, the

Mounted above the-plate 9 and disposed in alinement with the chamber 8 1s asleeve 23- which carries a plate 2 1 having central opening 25 to receive the upper end of the tube 11 to form a substantial guide for the same during its rotation. Mounted upon the up per end of the sleeve 23 is a closure cap 26 adapted to normally cover the eraser 27 and be readily removed when it is desired to us'e the eraser. It will be noted that the eraser is securely titted within the sleeve 23.

Arranged over the chamber 8 is a sleeve 28 having tightengageinent therewith and provided with a substantially, circular, bulged portion29 which forms a suit-able finger grip for rotating; the sleeve 28 and as the sleeve 28 tightly engages the chamber 8 the rotation of which will impart a rotary movementto the tube 11 and reciprocate the plunger 12 within the tubes 4: and 11.

It will be apparent from the foregoing that 'I have provided a pencil whereby a plurality of leads may be contained within the maga The general opeiation-.-

aforesaid movement 'witlr' drawing the curved end 21 through the-slot tion 3. It will'alsobeapparent that auto- 'inatic means are provided for normally retaining the reserve supply of leads within the chamber provided therefor, while the lead ithinthe feeding tube is being used.

lVhile I have shown and described the preferred embodiment of myinvention, it will he understood that various changes and alterations may be made .without departing from the spirit of the invention or the scope of the appended claims. v

Having thus described my invention, what I claim is: I I p 1. A pencil compr ,ing a tubular body a guidingtube having a discharge opening,

therein, a fcedtube forinedasa continuation ofthe guiding tube and having a slot therein, a spring arm having its'lower end emf bracing the guiding tube, a V-sliapecl:arm

intermediate the ends of the arm movable.

throughsaid slot, said feeding. tubehaving a slot upon the opposite side thereof from the first slot, a curved end portion formed at the innerjend of saidspring arm and mov able through the secondslotand a plunger, movable in said feed ng; tube a and forthe 1 purpose specitied.-

2. A pencil including a tubular body, a v guiding tube therein, a feeding tube formmg acontinuation' of the guiding tube and having a slotfornied therein; a coilplunger movable in the feeding tube, a i tongue I forinedon one of the edges of the slot adapt ed upon rotation of thefeeding tube to move in curved formation by engagement with; the convolutions of the plunger,fonrecipro5 eating the plunger in the tubular guide. 7

3. A pencil including a tubular body, a guidingtube confined therein and having a I slot formed therein, a feeding tube, forming,

a continuation of the guiding tubeand having a slot formed therein, a coil plungermovable in the eedin tube means for movin C? i C;

said plunger, a resilient nemberhaving an end portion embracing the guiding tube and having a'curved end portion adapted under certain conditions to enter the feeding tube through the slot thereof obstructing passage therethrough and having an. intermediate portion normally confined within the guiding tube through theslot thereof iiIiClzii'iOV- able from confined position to move said curved end portion into obstructing position. v.

In testimony whereof I affix my signature.

snonen TILL- AN SHELEY. I

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