US2370831A - Eraser mounting for pencils - Google Patents

Description

March 6, 1945. AvERlLL 2,370,831

ERASER MOUNTING FOR PENCILS Filed Sept. 15, 1944 INVENTOR. ealfge fire/1Z2: B Y

wooden pencil;

Fig. 8; and

Patented Mar. 6, 1945 UNITED STATE PATENT O F C I v ,2, 370,83l f c tAsER MOUNTING Fon. PENCILS G orge.- R- Ave rmingham M ch. g Application September 15, 19.44, Serial No. 554,196

' scam (c1. ne ts.)

' improved pencil and eraser construction wherein the eraser may be projected exteriorly the pencil from a normally concealed position therein merely by moving a manually operable element on the pencil. y

Another object of the invention is to provide'an end fthe' barrel 10 has" an eraser element mountedtherein and this may comprise a tubula holder It in which an eraser I5 is fastened in any suitable way. 'The holder M may be constructed or thin' sheet metal or the like and it i pivotally mounted on aligned pins I6 and IT projecting inwardly from opposite sides of the barrel ilfl. These pins haveslightly pointed or rounded 'in'ner ends which' seat in similarly shaped indentatiOnsI-B and IB'formed in the side walls of theholder. I

Normally;- the eraser isdi'sposed within the barrel in a concealed'position but it is adapted used. The eraser is normally urged outwardly attachment for ordinary wooden fpencils 'in'the forniof a tubular element having an eraser normally concealed therein which may be projected exteriorly of the element when it is desired to use the eraser. w r e Other objects of the invention will become apparent from the following description. from the drawing to. which it relate and from the claims hereinafter set forth.

For a better understanding of the invention be had to the accompanying draw shown by Fig. 1, with the eraser in its projected position;

Fig. 3 is a cross-sectional view tially along the line 33. of Fig. 2;

Fig. 4 is a cross-sectional view on alarger scale taken substantially along the line 4-4 of Fig. 3;

taken substan Fig. 5 is a view illustrating applicationjofthe 5 invention shown by Figs. 1 to 4 to an ordinary Fig. 6 is a view of another form embodied in an automatic pencil; v

- Fig. '7' is a fragmentary view of the pencil shown of the invention Fig. 8 is a plan view similar to scale, taken substantially along the line 9-9 of I of by aspri'ng 22 having one end '23 projecting intoa radial slot in the pin l1 and" its other end projecting axially-of the-pin as'indicated' at 24 into an opening in theholder l4.--This spring is soarranged that it urgesthe eraser in a direction to cause it tomoveoutwardly through the opening 22, andinto'thepositionshown in Figs. 3 and'4. A sleeve 25 s'lida bly mountedon the-barrel and overthe opening 22 hold theeraser within the barrel 'and' preferably a nib 26 is formed onthe holder'for contacting the inner surface of the sleeve. If the eraser is within the-barreland it is desired to use'it', the sleeve2'5 is moved to the right and as soon as th'e opening 2| is exposed sufiiciently, the eraser isythrown or projected through the opening and into'the position shown in 3'. I I i v .I

For locking the eraser in its projected-position, a slot 21 is provided in the side wall of the holder M for receiving the edge of the sleeve 25 and a similar'slot 2B is provided for receiving the edge 'of'the barrel at the 'left-endofuthe opening 2!. When thee'raser moves outwardly; the slot!!! receives the edge of the 'barreland then when the sleeve is moved", its edge enters the slot 2'1; The

eraser'now'is' firmly held in position and may be limiting movement of the sleeve to the right and that'theleft end of the barrel' isenlarged as indicated-at 3l= to limit;movement ofthe sleeve to the left. I

If desired; the-spring maybe omitted and'in I this event the eraser could be moved' outwardly by manipulating the pencil asby turning it'to allow theeraser to gravitate outwardly. Also,

the pivotal'connection between the holder 1 4 and the pins I6 and [1 may be'such as to allow removal and re-insertion of the eraser and holder in the event one wanted to separate the holder from the pencil. Various means might be used for allowing this removal and insertion and in the particular construction shown, opposit sides of the holderhave grooves or indentations 34 and 35 leading from the lower end of the holder to the recesses l8 and I9 receiving the inner ends of the pins. The inner ends of these grooves 34 and 35 are not as deep as the recesses l8 and I9 and therefore the ends of the pins normally will remain in the recesses. However, slight pulling movement of the holder l4 upwardly will cause the ends of the pins l6 and IT to ride out of the recesses in a resilient manner and then to ride through the grooves 34 and 35. The holder may be reinserted by reverse movement causing the pins to ride through the grooves and into the recesses.

In the construction shown by Fig. 5, the invention described is applied to an ordinary pencil indicated at 40 and in this case, a short barrel indicated at 4| is provided which is slidable over the end of the pencil. Otherwise, the construction is the same as that described previously. If a positive stop is desired within the barrel to limit its movement over the pencil 40, this may be accomplished by means of an indentation in the side wall of the barrel or by fastening a pin therein.

In the construction shownby Figs. 6 to 10,

inclusive, the holder and eraser arethe same as previously described and are movable outwardly through-the opening in the side of the barrel in the same manner. However, instead of using the sleeve 25 which is slidable along the barrel,

a sleeve segment 42 is provided which is turna-ble over a barrel portion 43 of reduced diameter. The opening 2| is formed in this portion of the barrel. Locking of the holder in projected posiwill be apparent to those skilled in the art that various modifications may be made without departing from the scope of the appended claims.

What is claimed is: 1. A pencil having a socket and an opening in the longitudinal side of the pencil leading to y the socket, and means for movably mounting an tion is effected by providing a slot or groove 44 in the side of the holder which is-adapted to receive the edge of the segment 42. In order to limit movement of the sleevesegment 42, a segment 45 of the barrel portion 43 is of larger diameter and this larger segment terminates in beads 48 and 49 provided on the end of barrel I portion 43 and the segment, respectively.

As seen in Fig. 10, the segment 42 may be turned counterclockwise a slight amount to allow the eraser and holder to be released and then the holder can be moved inwardly against the action of the spring so as to locate it within the barrel. After the holder is within the barrel the sleeve segment isturned until its edge engages the edge 45 of the barrel.

The construction shown by Figs. 6 to 10, inclusive, may likewise be used on an ordinary wooden pencil merely by providing a barrel portion which may. be moved over the end of the pencil as described in Fig. 5. Likewise, the holder may be pivotally mounted on the pins 16 and IT .so-as to permit removal and reinsertion. Furthermore, the spring may be omitted, in which :event the holder could be projected out of the opening by manipulation of, the pencil as previously mentioned.

Although more than one form of the invention has been illustrated and described in detail, it

eraser in the socket so that it may be enclosed by the latter when not in use or be projected partly from the opening when it is to be used.

2. A pencil having a tubular portion provided withan opening-in its side wall, and means for movably mounting an eraser in said portion so that it may be enclosed by the latter when not in use or be projected out through said opening when it is to be used.

-3. A pencil eraser means comprising a tubular element provided with an opening in its side wall, means for movably mounting an eraser within the element so that it may be retained therewithin or be projected out through the opening when it is to be used, and cover means for closing the opening when the eraser is within the element.

4. A pencil eraser means comprising a tubular element provided with an opening in its side wall, means for movably mounting an eraser within the element so that it may be retained therewithin or be projected out through the opening when it is to be used, spring means for normally urging the eraser to the projected position and manually releasable means for holding the eraser within the element.

5. A pencil eraser means comprising a tubular element provided with an opening in its side wall, means for movably mounting an eraser within the element so that it may be retained therewithin or be projected out through the opening when it is to be used, spring means for normally urging the eraser to the projected position, and a cover for the opening which is movably mounted on the element.

6. A pencil eraser means comprising a tubular element provided with an opening in its side wall, means. for movably mounting an eraser within the element so that it may be retained therewithin or be projected out through the opening when it is to be used, cover means for closing the opening when the eraser is within the element and cooperative means on the mounting andcover means for holding the eraser firmly in its projected position.

'I. A pencil eraser means comprising a tubular element provided with an opening in its side wall, means for movably mounting an eraser within the element so that it may be retained therewithin or be projected out through the opening when it is to be used, a cover slidably mounted on the element and normally closing the opening, and means on the mounting means and cooperative with the edge of the cover for holding the eraser firmly in its projected position.

8. A pencil eraser means comprising a tubular element provided with an opening in its side wall, and releasable means for pivotally mounting an eraser within the element so that it may be retained therewithin, or be projected through the opening when it is to be used or be entirely released from the element.

GEORGE R. AVERILL.

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