US1224992A - Pencil attachment. - Google Patents

Description

F. ZIEIVIER.

PENCIL ATTACHMENT.

APPLICATION FILED N0v.28,1916.

3,224,992.. Patented May 8, 1917.

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Specicaton of Letters Eatent.

Patented el,

ipplication led lllcvcmber 2Q, 1915. Serial lio. ll.

To @ZZ whom it may concer s n Be it known that l, Fasciatoi; Zinnen, a citizen oit the United States, residing at Freeport, in the county of Nassau, State of New York, have invented a new and uselul Pencil Attachment; 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 make and use the same.

The present invention relates to an eraser attachment for pencils which embodies novel features ot construction whereby the pencil will not roll upon the floor it dropped on a desk, and will not roll into some inaccessible position'it dropped upon the door, thereby saving the large amount of time which is ordinarily spent in the aggregate in looking 'for lost pencils.

Further objects of the invention are to provide a device of this character which is comparatively simple and inexpensive in its construction, which can be readily placed upon a pencil or removed therefrom', which not only prevents rolling ot the pencil but can also be used as an eraser, and which does not interfere with handling the pencil in the usual manner.

With these and other objects in view, the invention consists in certain novel combinations and arrangements of the parts as will more fully appear as the description proceeds, the novel features thereof being pointed out in the appended claims.

or a :tull understanding of the invention, reference is to be had to the Jfollowing description and accompanying drawings, in which Figure l is a perspective view ot1 the reduced end of a pencil upon which the attachment is to be fitted.

Fig. 2 is a detached perspective view of the rubber attachment.

llig. 3 is a side elevation of a pencil having the rubber attachment applied thereto, portions being broken away and shown in section.

Fig. l is a transverse sectional view on the line 4 4 ot Fig. 3.

Corresponding and like parts are referred to in the 'following description and indicated in all the views of the drawings by the same reference characters.

' Referring to the drawings, the numeral 1 designates a lead pencil which is oit the conventional construction, one end et the pencil being reduced and tapered, as indicated at in annular seat 3 is provided at the base ot the reduced and tapered stern 2, while longitudinal grooves l extend along diametrically opposite sides ot the tapered stem 2. lhe rubber attachment includes an elastic sleeve 5 having a bore which is tapered to correspond with the taper of the stem 2, said bore being provided upon opposite sides thereof with internal ribs 6 for engagement with the grooves l ot the stern 2, and being also provided at the mouth thereof with an internal enlargement 7 which is adapted to spring into the annular seat 3. The longitudinal ribs 8 thus cooperate with the grooves hold the sleeve against rotation upon the pencil, while the enlargement 'i' engages the annular seat 3 to prevent the sleeve from being accidentally withdrawn from pencil. The end ot the sleeve carries a laterally enlarged head 8 which projects a considerable distance upon the diametrically opposite sides thereo'li2 and is formed with opposed and substantially parallel side faces 8a which are arranged in such a manner as to make it impossible :tor the pencil to roll it accidentally dropped upon the `door or desku The length of the flattened head is considerably greater than its thickness, and the ends of the flattened head may be slightly Jflared, it desired, and terminate at the sides thereof in points 8l such as will prove v ry eilec'tive in engaging a tlat surface to prevent rolling of the pencil thereon. lilith this construction it will be obvious that the attachment can be readily slipped upon a pencil or rcmoved therefrom, and that when is in operative position it can not only be used in the customaryrnanner as an eraser, but will also prevent the pencil from rolling it dropped upon a lat surface.4

lt is well known that devices having similar objects in view have been constructed with square, triangular and polygonal shaped heads, but these heads are not effective in preventing the rolling ot a pencil, because ot the tact that the ilat sides on the 1heads of these prior devices are all equal in size and consequently of a small area, thereby preventing a solid bearing of the head on a flat surface. ln the present construction the dat faces 8a are of a larger area and instead of being equal to the area of each ot the other two faces are considerably greater. Thus, although when the pencil is carelessly thrown down or dropped on a dat surface one of the smaller end faces might engage the surface temporarily, the bearing surface is so small, compared to the size of the head, that the pencil will immediately swing into position with one of the larger faces of the head in engagement With the flat surface, and .remain in this position until deliberately picked up and moved.

Having thus described'the invention, what l claim as new and desire to secure by Letters Patent, is

l. The combination with a pencil which terminates at one end thereof in a reduced stem, of an elastic sleeve slipped removably upon the reduced stem and prOVidedWth a iiattened head projecting in diametrically opposite directions from the sleeve and providing"'opp'76sed and substantially parallel side faces to prevent rolling of the pencil on a flat surface, the length of the head being considerably greater than its thickness so as to provide side faces having a large area and end faces having a small area.

i ,a2-sacca 2. The combination with a pencil terminating at the end thereof in a reduced and tapered stem, said stem having longitudinal grooves inthe sides thereof and an annular depressed seat at the base thereof, of a rubber sleeve fitted upon the stem and provided with interior longitudinal ribs for engagement With the grooves of the stem as Well asy an annular inwardly-projecting enlargement for engagement with the seat'at the base of the stem, said sleeve beingformed with a Hattened head Which projects laterally therefrom in diametrically opposite directions and has spaced and parallel side faces adapted to prevent rolling of the pencil on a fiat surface.

ln testimony whereof l have signed my name to this specification in the presence of two subscribing Witnesses.

FREDRCK ZlEMEjR. Witnesses:

" WM. F. PEARSALL,

JOHN J. MCCAFFREY.

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