US1473090A

US1473090A - Erasing attachment for pencils

Info

Publication number: US1473090A
Application number: US468929A
Authority: US
Inventors: Gilbert E Ferry
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-05-12
Filing date: 1921-05-12
Publication date: 1923-11-06
Anticipated expiration: 1940-11-06

Description

Nov. 6, 1923. 31,4173,@9

G. E. FERRY ERASING ATTACHMENT FOR PENCILS Original Filed May 12. 1921 L a (liter/mug Patented Nov. d, li 923.

aerate-a earner estates.

GILBERT E; FERRY, F OMAHA, NEBRASKA.

ERASING ATTACHMENT FOR PENCILS.

Application filed may 12, 1921, Serial Ito;468,929. Renewed April 11', 1923.

- To all whom it may concern Be it known that I, GILBERT E. FERRY, a citizen of the United States, residin at Omaha, in the county of Douglas and tate 6 of Nebraska, have invented certain new and useful Im rovements in an Erasing Attachment for encils, of which the following is a specification.

This invention has for its object to provide an attachment for lead pencils, to consist of a clasp and an erasing-block, said attachment when in use being disposed adjacent to the sharpened end of the pencil where it will not inconvenience the writer and which may have a sliding movement to be disposed at or below the sharpened end portion of the pencil for erasing, the clasp being provided with projections or holders at the lower side of the pencil adapted to be engaged by one of the fingers of the hand' for sliding it forwardly when erasing, and for sliding it rearwardly when writing, said attachment operating asa great convenience to the writer. Y

The invention consists of the novel con- "truction, combination and arrangement of parts as described herein and clalmed, and as illustrated in the accompanying drawing, wherein,-

Fig. 1 is a side view of the device, showing the position of parts when the pencil is used for writing. Fig. 2 is a similar view showing osition of parts when used for erasing. ig. 3 is a rear end view of the 3 device. Fig. 4 is a plan view of the same.

Fig. 5 is a sectional view on line 55 of Fig. 4. Fig. 6 is a plan view of the erasingblock.

Referring now to the drawing, I provide a a clasp preferably having a concavo-convex body 7 of elongated loop-form having an aperture 8 midway between its edges, said body being provided with a pair of curved pro ections or finger-holds 9 and 10 extenda ing from the margin of the aperture 8, and provided at its front end with a forwardly projecting prong 11 upon which an eraserblock 12 1s removably mounted.

Since the clasp is of loop-form in crosssection, and open at its top and is, preferably, constructed of metal, its diameter may be slightly reduced or increased to correspond with the diameter of the body a of the penoil, this adjustment being such that it may slide readily on the pencil when moved by the finger (usually the second finger) of the hand of the writer, the aperture 8 permitting said finger to bear upon the pencil so that 1t may be suitably held and its move ments controlled in the usual way, the finger-holds or projections being reversely curved and disposed at the ends of the aperture 8 so that the finger of the operator may be disposed therebetween for moving the clasp forwardly or rearwardly.

The block 12 is constructed of india rubber or similar material for erasing pencil marks, and is provided, preferably, with an aperture 6 for receiving the prong 11, and when unduly worn may be replaced by a new block.

In some instances the prong 11 should be elastic so that the block and clasp may be moved without undue resistance forwardly or rearwardly, in engagement with the body ofthe pencil, but the device will operate to advantage generally if the clasp fits quite loosely on said body, and will operate practically if the prong is, approximately, nonelastic.

In operation, the parts are normally disposed as shown in Fig. 1 of the drawing, the block 12 being disposed at a suitable distance from the end of the pencil, so that writing will not be interfered with, and it will be appreciated that by pressing the finger against the projection 9 the clasp may be moved forwardly to dispose the block 12 below the end of the pencil as shown in Fig. 2, for erasing pencil marks, and may be readily moved rearwardly by pressing the finger against the projection 10. the device operating to save time of the writer and being a matter of convenience.

It will be noted that since the projections or finger-holds 9 and 10 are reversely curved, they permit suitable engagements of the finger of the writer so that the clasp may have rapid shuttle-like movements on the pencil when frequent era sures are required.

The prong 11, in shape, is preferably spatular to resist stresses caused by transverse movements of the pencil when erasing pencil marks, and to prevent any revoluble movement of the block; and a groove 0 (Fig. 6) is preferably formed in the top of the block 12 for a suitable engagement therein of the tapered end portion of the pencil.

I claim as my invention,

1. An erasing attachment for pencils,

comprising a sleeve adapted to be mounted on the pencil, said sleeve having a prong projecting forwardly therefrom and having a pair of projections disposed in line with the prong, and an erasing-block removably mounted on the prong.

2. In an erasing attachment for pencils, a sleeve having a slot in its side opening divergingly on its ends and having a pair of projections disposed in spaced relation on its side opposite to said slot, and having a prong extending forwardly in line with the projections, and an erasing element on said prong.

3. n an erasing attachment for pencils, a sleeve having an erasing member projecting beyond one of its ends and having apair of oppositely curved projections to permit en agement of a finger for sliding it forwar ly or rearwardly on the pencil, and provided with an aperture between the proections to permit engagement of a finger with therpencil.

4. In an erasing attachment for pencils, a sleeve having a slot opening on its ends, that part of the sleeve opposite to the slot being provided with a forwardl projectin prong and a pair of adjacenti y dispose oppositely curved-projections, an erasingblock removably mounted on the prong, the wall of the sleeve between the projections being provided with an aperture to-permit the finger of an operator to engage the pencil whilev disposed between the projections.

5. In an erasing attachment for pencils, a longitudinally slotted sleeve adapted to be mounted on the pencil and having a forwardly extending prong and/a pair of longitudinally curved projections for use in reciprocating it longitudinally of the encil, and an erasing-block having a recess or receiving said prong. I

6. In an erasin attachmentfor a ncil having a tapere part, a sleeve having a slot opening on its ends and provided oppo-. site to theslot'with an elongated aperture, said sleeve also being provided with projections at the ends of said aperture and having a prong extending forwardly from said projections, and an erasing-block carried by the prong, said block having an inclined part for engaging the tapered part of the pencil.

7. In an erasing attachment for'a pencil having a tapered part, a sleeve having a slot opening on its ends and provided opposite to the slot with an elongated aperture and projections at the ends of the aperture and a prong extending beyond one of its ends, said prong being curvedto lie outwardly of the plane of the sleeve and being disposed in line with the projections and said aperture, and an erasing-block carried by the prong, said block having a groove in one of its. sides for receiving the tapered part of the pencil.

In testimony whereof, I have afiixed my signature in presence of two witnesses.

GILBERT E. FERRY.

Witnesses! HIRAM A. Srumne,

ARTHUR H. Srumms.