US699743A

US699743A - Eraser-tip for pencils.

Info

Publication number: US699743A
Application number: US7335201A
Authority: US
Inventors: Willard H Brownell
Original assignee: Individual
Current assignee: Individual
Priority date: 1901-08-26
Filing date: 1901-08-26
Publication date: 1902-05-13
Anticipated expiration: 1919-05-13

Description

No. 699,743. Patented May l3, I902. A

W. H. BBOWNELL.

ERASER TIP FOB PENCILS.

(Application flied Aug. 26, 1901.)

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lTE STATES ATENT @FFICE.

ERASER-TIP FOR PENCILS.

$PECIFIOATION forming part of Letters Patent No. 699,748, dated May 13, 1902.

Application filed August 26, 1901. Serial No. 73.352. (No model.)

To all whom it may concern.-

Be it known that I, WILLARD H. BRO WNELL, a citizen of the United States, residing at the cityof Battlecreek, in the county of Calhoun and State of Michigan, have invented certain new and useful Improvements in Eraser-Tips for Pencils, of which the following is a specification.

This invention relates to rubber tips for.

A further object of the invention is to pro vide a secure retaining means which is completely and effectively adjustable forholding an elongated piece of erasive material, thus making it practical to provide a superior erasive material, as the same can be used continuously, being transferred from pencil to pencil as the pencils are used up.

Further objects will definitely appear in the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification.

The invention is clearly defined, and pointed out in the claims.

A structure embodying the features of my invention is fully illustrated in the accompanying drawings, forming a part of this specification, in which- Figure l is an enlarged view of the structure, the position of the erasive material and clamping jaws being indicated by dotted lines. Fig. 2 is an enlarged detail view of the inner sleeve, which is slitted to form jaws at its upper end. Fig. 3 is a detail illustration of the part appearing in Fig.2 with the outer sleeve about to be pressed to position, the erasive material inserted within it being shown by dotted lines. Fig. 4 is a detail view of one of the jaws much enlarged with a retaining-lug thereon. Fig. 5 is an enlarged detail view of a modified. form of my improved eraser-tip.

In the drawings similar letters of reference refer to similar parts throughout the several views.

Referring to the lettered partsof the drawings, A represents a sleeve slitted at its bottom for slipping over the end of a lead-penoil. The upper end of this is slitted into jaws B, the ends of which are turned slightly inward to engage the cylindrical rubber piece D, which is adjustable within the sleeve A. Outside of the sleeve A, Iprovide an adjustable sleeve or cylinder 0, which embraces the jaws l3 closely and forces them into the resilient erasive material,and by this means it will be noted that the sleeve will slip back and forth over the jaws, which will be pressed" outward in close contact with the same and hold it there securely by friction, and from this it will be observed that the sleeve can be slipped out over the rubber entirely or can be withdrawn back from the end, where it will be retained by friction, so that the tip of the rubber can be exposed for erasive purposes. The relative size of the inner and outer sleeves, the erasive material, and the expansion of the jaws fully appears in Fig. 3. I provide a longitudinal slot 0 in the sleeve 0, into which a lug B on one of the jaws B projects. This prevents the sleeve from being drawn entirely off or from its being slipped back so far as to release the j aws,which would of course release the piece of erasive material.

In place of making a plain sleeve, as I have indicated in Fig. 1, the parts may be corrugated into a screw-thread form, as appears in Fig. 5, the outer sleeve there being marked E. A suitable step can be provided on the structure appearing in Fig. 5 to prevent its being moved too farin either direction. The

structure appearing in Fig. l is much less ex- Having thus described invention, what I claim as new, and desire to secure byLetters Patent, is-

1. In a pencil-tip,the combination of a sleeve A slotted at oneend to fit on the upper end of a pencil, the other end of which is slittcd into jaws B'which are bent slightly inward, one of said jaws being bent to form a lug B; said jaws adapted to receive an elongated piece of elastic erasive material; an external sleeve C containing a slot 0 for engaging lug B embracing the said jaws and contacting with the same sufficiently to crowd them into the yielding erasive material, whereby the said external sleeve is adjustable back and forth over the said erasive material, for the purpose specified.

2. In a pencil-tip,the combination ofa sleeve A slotted at one end to fit on the end of a leadpencil, the other end of which is slitted into jaws B which are bent slightly inward and adapted to receive an elongated piece of elastic erasive material; an external sleeve 0 embracing the said jaws and contacting with the same sufficiently to crowd them into the yielding erasive material whereby said external sleeve is adjustable back and forth over said jaws and over the erasive material, for the purpose specified.

3. In a pencil-tip,the combination of a sleeve adapted to fit on the end of a lead-pencil, the

WILLARD ll. BROWNELL. [L. s]

YVitnesses:

ALICE E. HOUGHTON, OTIS A. EARL.