US2112130A

US2112130A - Eraser holder

Info

Publication number: US2112130A
Application number: US116684A
Authority: US
Inventors: Bachrach Joseph
Original assignee: Individual
Current assignee: Individual
Priority date: 1936-12-19
Filing date: 1936-12-19
Publication date: 1938-03-22
Anticipated expiration: 1955-03-22

Description

J. BACHRACH ERASER HOLDER March 22, 1938,

Filed Dec. 19, 1936 Etait# INVENTOR, Jaaa/pb l, @brac/L ATTORNEY.

Patented Mar. 22, 1938 UNITED STATES PATENT orties ERAsER. HOLDER 1 Joseph Baehaeh, New York, N. Y. Application December 19, 1936, serial Ne. 116,684

y 4 claims. Y (o1. 12o- 36) This invention relates to eraser holders and hasV for its general object and purpose to provide a magazine or case for a plurality of erasers; with means carried by the case and extending externally thereof for adjustably and rigidly supporting one of the era-sers in position for convenient use.

It is a more particular object of the invention to provide a'clamping or holding device at one end of the case or magazine for removably supporting a circular eraser which is of such construction that the eraser may be rotatably adjusted uponA said support, and then rigidly clamped and secured in its adjusted position so as to present a new section of the periphery of the eraser in proper relation to the holder for use.

VMore particularly, in one embodiment of the invention, I provide the case or magazine on one of its endswith a tubular part, and an eraser clamping and holding member having resiliently connected arms provided at their free ends with `studs or lugs adapted to enter the opposite ends of'a central opening in the eraser and providing a support about which the eraser may be rotated, and one or both of said arms having additional means for securely gripping the eraser and hold ing the same against rotation when said arms are inserted into said tubular part and forced towards each other against opposite sides of the eraser. By partially withdrawing the lholder from said tubular part, the clamping or gripping action may be released so that the holder can be u rotated about said supporting studs.

It is a further general object of my invention to provide a device of the above character, which is simple, inexpensive and durable in its construction, may be easily and quickly operated, and is convenient and serviceable for the intended purpose.

With the above andother objects in view the invention consists in the improved eraser holder, and in the form, construction and relative arrangement of its several parts, as will hereinafter be more fully described, illustrated in the accompanying drawing and subsequently incorporated in the subjoined claims.

In the drawing wherein I have illustrated several simple and practical embodiments of the device, and in which similar reference characters designate corresponding parts throughout the several views:

Fig. l is a vertical sectional View through the case or magazine, with the Vcover member removed, and showing one embodiment of the invention,

Fig. 2 is a vertical sectional view taken on the line Z-Z'of Fig. l, .Y

Fig. 3 is a horizontal sectional View, on an enlarged scale, taken on the Yline 3 3 of Fig. 2,

Fig. 4 is a vertical section lsimilar to Fig. 2 showing a modified form of the device,

Fig. 5 is a sectional view taken on the line 5 5 of Fig. 4.

Referring in detail to the drawing and for the present more particularly to Figs. 1, 2, and 3 thereof, the case or magazine consists of two telescoped sections 5 and I5 respectively, preferably of rectangular form. This case is of suit'- able dimensions to receive a plurality of erasers 'I of well known standard form, each of which is provided with a central opening 8. The two case sections 5 and 6 are releasably held in telescoped, closed relation to each other by a conventional type of resilient latch means, indicated at 9.

The case section. t is centrally provided at its closed end with a rectangular opening in which is securely xed a rectangular tubular member It open at its opposite ends. The major partof this member extends within the case section 5 and the relatively short outwardly projecting end portion thereof is provided in its opposite edge walls with suitably formed notches, indicated at II, which are adapted to receive the edge of the o eraser T, as clearly seen in Fig. 2 of the drawing. 'Ihe inner opposed faces of the opposite side walls of the member I0 are slightly inclined relative to the axis of the case and extend in diverging relation to each other from the inner to the outer end of the member Ill, as also indicated in Fig. 2 of the drawing.

The eraser holder or support comprises a sheet metal strip having the arms I3 each of which is provided on its longitudinal edges Withtapering flanges Ill. At the wider inner ends of these flanges the arms I3 are integrally connected by the yieldable center portion I5 of the metal strip, said resiliently yieldable connecting portion I5 acting to normally urge the arms away from each other.

Each of the arms I3 at its free end and be tween the flanges I4 is folded or bent inwardly upon itself, as at I5, and terminates in an angularly projecting lug Il. This lug is of such width as to enter one end of the opening 8 in an eraserr'I positioned between the arms I3.

In the use of the device above described, after removing an eraser from the case or magazine, it is positioned between the arms I3 and the outer ends of said arms pressed inwardly so that the lugs I'I will enter the ends of the opening 8. The other end of the holder is then inserted into the tubular member I0. As the arms I3 ride against the tapering or inclined side walls I2 of said member III, they are forced towards each other against the action of the resilient connecting part I5 so that the edges of the flanges I4 are caused to bite into the opposite sides of the eraser 'I and securely clamp the same, as seen in Fig. 3 of the drawing. At the same time, the edge portion of the eraser enters the notches II and frlctionally bears upon the edges of these notches. Thus the eraser is rigidly and securely held against any rotative movement during the use thereof.

After the outer edge portion of the eraser I has become worn and more or less flattened by use thereof, adjustment of said eraser to present another section of its periphery in erasing position may be easily and quickly made by merely pulling the holder outwardly a short distance from the tubular part I so that the resilient connecting part I may act to move the outer ends of the arms I3 away from each other and thus release the gripping action of the flanges I4 on the eraser. The eraser can then be turned or rotated around the lugs I'I so that an unused part of the periphery of the eraser is properly positioned be,- yond the ends of said arms. Upon again forcing the holder inwardly through the member Ill the eraser will then be again securely clamped and held in its new position.

Figs. 4 and 5 illustrate a slightly different form of the eraser holding device, in which the holder consists of two relatively heavy, rigid metal arms I 3 connected at one of their ends by a thin resiliently yieldable web I5. At their other ends and upon their inner faces the pivot studs I'I are integrally formed, and circumferentially spaced fins I 8 are formed upon the periphery of each stud and are adapted to bite into or gripl the eraser at each end of the'opening 8 therein. Also if desired the inner face of each of the arms I3 around the studs I'I' may be provided with shallow indentations or recesses I9 to provide additional gripping edges for engagement with the opposite side faces of the eraser. This form of the device operates in the same manner as that previously described, and when the arms I3 are inserted within the tubular part IU with the eraser properly positioned therebetween, said arms are forced together to securely clamp and grip the rubber eraser. In this case I have shown the major part of tubular member I0 extending exteriorly of the case and the notches or recesses I I are omitted.

When the eraser is not being used it may be enclosed within a cover 6 removably fitted over the end of the casing section 6 and abutting the end of the section 5.

From the foregoing description taken in connection with the accompanying drawing, the construction, manner of use and several advantages of the described embodiments of my invention will be clearly understood. It will be seen that by providing a magazine or holder for a plurality of eraser elements with means for removably mounting an eraser upon the case or magazine in position for use, I have provided a device which will be of great convenience and serviceability, particularly for typists. Also by reason of the particular clamping means for the eraser element herein described, adjustment of the eraser can be easily and quickly effected so that all portions of its sharp edged periphery may be used, thus avoiding unnecessary waste and expense incident to the purchase of new erasers.

I have herein illustrated and described several particular embodiments of my present invention. However, it is to be understood that the essential features of the present disclosure might also be incorporated in various other alternative structural forms and I accordingly reserve the privilege of resorting to all such legitimate changes in the form construction and relative arrangement of the several parts as may be. fairly comprehended Within the spirit and scope of the invention as claimed.

I claim:

1. In combination with guiding and supporting means, an eraser holder comprising opposed arms and a resiliently yieldable connection between vsaid arms at one of their en-ds, normally acting to space the other ends of said arms apart to receive an eraser therebetween having a central opening, each of said arms being provided with a stud adapted to enter one end of said opening and gripping edges surrounding said stud to engage opposite sides of the eraser and secure the latter against bodily movement relative to the holder in one position of the holder with respect to said guiding and supporting means, and said holder being adjustable in said guiding and supporting means to release the eraser from said gripping edges whereby the eraser may be rotatably adjusted upon said studs to position a selected portion of its periphery in remotely spaced relation from the end of theV case and in alignment with the longitudinal axis thereof.

2. In combination with a support, an eraser holder removably mounted on said support and comprising means for releasably gripping a circular eraser at its approximate center, said holder being adjustable to one position on the support to release the eraser for rotative adjustment relative to said holder, and said support having means for gripping engagement with the periphery of the eraser when the holder is adjusted to another position on the supportto render said rst named gripping means effective, and prevent rotative movement of the eraser from its adjusted position.

3. In combination with a tubular support, an

eraser holder adjustably and removably mounted in said support and comprising means for releasably gripping an eraser at its approximate center, said holder being adjustable to one position on the support to release the eraser for rotative adjustment relative to said holder, and said tubular support at one end thereof and in its opposite sides being provided with recesses to receive and grip the edge of the eraser at spaced points when the holder is adjusted to another position on the support, to render said rst named gripping means effective, and prevent rotative movement of the eraser from its adjusted position.

4. A holder for a rubber eraser having a central opening therethrough, said holder comprising opposed resiliently yieldable arms each having means for gripping engagement with one side of an eraser positioned therebetween, at points in spaced relation to said opening, and each of said arms also having additional gripping means receivable in said opening and having gripping engagement with the eraser at the respective end edges of said opening.

JOSEPH BACHRACH.