US46032A - Eraser - Google Patents
Eraser Download PDFInfo
- Publication number
- US46032A US46032A US46032DA US46032A US 46032 A US46032 A US 46032A US 46032D A US46032D A US 46032DA US 46032 A US46032 A US 46032A
- Authority
- US
- United States
- Prior art keywords
- eraser
- edge
- sharp
- cutting
- cut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000007790 scraping Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K29/00—Combinations of writing implements with other articles
- B43K29/02—Combinations of writing implements with other articles with rubbers
Definitions
- My invention consists in forming au eraser' with a tile-cut surface and also with a sharp or scraping' edge, so that either may be used, as may be most desirable.
- Fig. l represents an eraser constructed in form similar to those now in common use.
- One side is Inade slightly convex, as shown in the section ot' Fig. 1, and that side is cut or roughened like a le, with the exception of the strip along the edge, which is ground smooth or chamfered Off, so that the edge may loe made sha-rp and cutting in the usual wav.
- the eraser-blade may be made with one or more sharp edges, that being simply a natter of degree.
- Figs. 2 and 3 represent modifications of the same idea preferred by some.
- An eraser constructed with a forementioned-cut surface in ycombination with a sharp cutting or
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Description
UNITED STATES PATENT OFFICE.
A. Cr. SHAVER, OF NEV HAVE, CONNECTICUT.
ERASER.
Specification forming part of Letters Patent No. 46,032, dated Janlar)l 24, 1865 To all whom t may concern:
Be it known that I, A. G. SHAVER, of the city of New Haven, in the county of New Haven and State Of Connecticut, have invented a new and useful Improvement in Erasers, and I do hereby declare the following to be a full, clear, and exact description of the same, :reference being had to the accompanying drawings, in which- Figures l, 2, and 3 represent different methods of making them, with sections of each on the line .fr a.
My invention consists in forming au eraser' with a tile-cut surface and also with a sharp or scraping' edge, so that either may be used, as may be most desirable.
That others may understand the construction and operation ot' my invention, I will particularly describe it.
Fig. l represents an eraser constructed in form similar to those now in common use. One side is Inade slightly convex, as shown in the section ot' Fig. 1, and that side is cut or roughened like a le, with the exception of the strip along the edge, which is ground smooth or chamfered Off, so that the edge may loe made sha-rp and cutting in the usual wav.
lt is obvious that the eraser-blade may be made with one or more sharp edges, that being simply a natter of degree.
Figs. 2 and 3 represent modifications of the same idea preferred by some.
It is found that a surface cut like a file operates in erasing a blot of ink from the surface of paper or parchment more uniformly and satisfactorily than a cutting-edge, While it is also true that a sharp edge will leave the surface much smoother and liner than the le will leave it; hence an eraser composed of a file and a sharp edge also must be very perfect inits operation.
It is Obvious that forms into which this instrument may be wrought are many, and I do not wish to be understood as confining myself to those shown or to any particular style or form.
What I claim as new, and desire to secure by Letters Patent, is-
l. An eraser constructed with a tile-cut surface, in combination with a sharp cutting Or scraping edge or edges, substantially as shown.
2. An eraser constructed with a iile-cut surface in ycombination with a sharp cutting or,
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US46032A true US46032A (en) | 1865-01-24 |
Family
ID=2115591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US46032D Expired - Lifetime US46032A (en) | Eraser |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US46032A (en) |
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0
- US US46032D patent/US46032A/en not_active Expired - Lifetime
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