US1662474A - Adjustable eraser holder - Google Patents

Description

March 13, 1928. I

g F. E. RANDALL ADJUSTABLE ERASER HOLDER Filed Feb. 16. 1926 Patented Mar. 13, 1928.

UNITED STATES v 1,662,474 PATENT OFFICE.

FRANK E. RANDALL, 01' LOS ANGELES, CALIFORNIA, ASSIGNOR OI TWO-THIRCDS TO THEODORE HOLMES AND J. EDWARD GLENN, BOTH 01 LOS ANGELES, CALIFORNIA.

ADJUSTABLE ERASER HOLDER. I

Application filed February This invention relates to an eraser holder and particularly pertains to an eraser holding'device of the magazine type.

The primary object of the invention is to a provide a device adapted to contain an eraser and operable to feed the eraser from amagazine to present lengths ofthe eraser therefrom as occasion may require, whereby the protruding working end of the eraser may In be advanced from time to time to compensate for wearing of the eraser under use.

Another object is to provide an eraser holder of the above character which is so constructed as to enable the ready remoyal.

15 and replacement of the eraser so as to facilitate renewal of the eraser when it becomes excessively worn.

Another object is to provide a magazine eraser holder which is adapted to be applied 20 to a lead pencihpen holder or the like.

A further object is to provide a magazine eraser holder which is simple in construction, easily operated, and which is durable and not liable to get out of order.

The invention resides generally in the provision of a tubular magazine open at least at one of its ends fitted with a, slidable eraser carrier operable to be disposed in various positions longitudinally of the magazine whereby an eraser held in the carrier may be adjusted to vary the extent of its projection through the open end of the magazine.

The invention further resides-in the parts and in the combination, construction and arrangement of parts'hereinafter described and claimed and illustrated by. way. of example in the accompanyingdrawing, in which Fig. 1 is a perspective view of the eraser holder;

Fig. 2 is a view in vertical section;

- 3 is a detail in cross section as seen onthe-line 3-3 of Fig. 2;

Fig. 4 is a detail in erosssectionas seen onthelineHofFigfl. Referring to the drawings more specifically, 5 indicates a tubular-.magazine-here shown as circularin cross section; being in g the form of a cylinder open at its upper end.

An elongated slot 6 extends longitudinally w .of the c lindrical magazine wall from a .point ad acent the up point any suitable distance-therefrom and leading laterally from the slot 6 and communieating therewith is a series of transa verse slots including end slots 7 and 8 and per end thereof to a 1 6, 1926. Serial N0. 88,539.

a plurality of intermediate slots 9 suitably spaced apart and extending alternately from opposite sides of the longitudinal slots 6 between the end slots 7 andS.

Arranged within the tubular magazine and on slidable longitudinally thereof is an eraser carrier 10 on which is mounted an elongated cylindrical eraser 11. The carrier 10 is here shown as comprising an annulus, the outer periphery of which slidably conforms to the inner periphery of the tubular magazine and, which annulus encircles the inner end of the eraser in frictional engagement therewith. The outer end portion of the eraser is formed of such diameter as to slidably conform to the inner periphery of the tubular magazine and its inner end portion is reduced in diameter so that it may be inserted within the annular carrier.

Detachably connected to the carrier, 10 is a pin or stud 12 projecting through the slotted portion of the magazine, the outer end of which stud is formed with a head 13 and the inner end of which is formed with screw threads 14 engageable with a threaded open ing 15 in the annular carrier. The inner end of the stud is extended through the walls of the.carrier into engagement with the eraser thereby holding the latter against accidental disengagement from the carrier.

The magazine may be of any suitable length and may be formed with atubular end extension as indicated at 16 adapted to receive the end portion of a pencil or pen holder 17 with which the magazine may be either fixedlv or detachably connected.

In assembling the device, as in mounting the eraser within the magazine, thecar-rier 10 may be removed from the magazine on disengaging the stud 12 therefrom and after being engaged with the eraser replaced through the open outer end of the magazine; or the carrier may be disposed in its uppermost position in the magazine and the stud unscrewed to permit insertion of the inner loo end of the eraser within the carrier.

It will be apparent that by manipulating the stud the carrier'may 'be turnedcircumferentially in relation to the magazine to dispose the stud inv alignment with the lon- 105 gitudinal slot whereupon the carrier may be shifted longitudinally of the magazine by passing the stud along the slot 6 and may be di d in various positions throughout the range of its length of move- 1'10 ment by switching the stud into engagement with any one of the transverse slots. The eraser is of such length inits normal state that its outer end will protrude a short distance from the end of the magazine when the carrier is in its innermost position as shown in Fig. 2.

In use, when the protruding end portion of the eraser wears away an additional length of the. eraser may be projected from the magazine by shifting the carrier to a more advanced position by manipulating the stud as before described: the carrier being held against movement lengthwise of the magazine inany desired adjusted position in opposition to end thrusts imposed on the eraser by engaging the stud with one of the transverse slots. In this manner the eraser may be fed step by step as occasion may require by a new length of eraser in the manner s ecified on removal of the worn eraser from t e carrier.

I claim:-

An eraser holder comprising a tubiform body having a longitudinal slot, :1 ringshaped eraser carrier titted slidahly within said tuhiform body, a cylindrical eraser titting slidably within said tubiform body, said eraser having a diametrically reduced inner end portion WhlClI fitS within said ringshaped carrier, said carrier being provided with a screw-threaded hole. and a stud slidable along the aforementioned slot, said stud being screwed into said hole in the eraser carrier and at its inner end projecting into said eraser to secure said eraser and carrier together.

In testimony whereof, I have affixed my signature.

FRANK E. RANDALL.

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