US189592A - Improvement in pencil-sharpeners - Google Patents
Improvement in pencil-sharpeners Download PDFInfo
- Publication number
- US189592A US189592A US189592DA US189592A US 189592 A US189592 A US 189592A US 189592D A US189592D A US 189592DA US 189592 A US189592 A US 189592A
- Authority
- US
- United States
- Prior art keywords
- pencil
- sharpener
- sharpeners
- improvement
- small
- 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
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 230000000875 corresponding Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L23/00—Sharpeners for pencils or leads
- B43L23/08—Sharpeners for pencils or leads in which the pencils or leads are sharpened mainly by rotational movement against cutting blades
Description
G. AGNEW.
PENCIL-SHARPENER.
No. 189.592.. rammed Apr1117,1877.
UNITED STATES PATENT OFFICE.
'.GEORGEAGNEW, OF TITUSVILLE, NEW JERSEY.
IMPROVEMENT IN PENCIL-SHARPENERS.
Specification forming part of Letters Patent No. 189,592, dated April 17, 1877 application filed January 29, 1877.
To all whom it may concern:
Be it known that I, GEORGE AGNEW, of Titusville, in the county of Mercer and State of New Jersey, have invented a new and Improved Pencil-Sharpener, of which the following is a specification:
In the accompanying drawing, Figure l represents a pencil with my improved sharpener attached. Fig. 2 is a pencil with sharpener removed. Fig. 3 is a vertical central Section of' pencil-sharpener, and Figs. 4 and5 are horizontal sections of the pencil-Sharpener on lines x w, Fig. 3, 'and c c, Fig. 1.
Similar letters of reference indicate corresponding parts.
The invention relates to an improved pencil-Sharpener that is turned on the pencil and used therewith until the same is entirely spent, keeping the pencil at any time by a few turns Aof the Sharpener in pointed condition Without the use of a knife or soiling of lingers, and being readily applied to a new pencil, as required.
The invention consists of a pencil-Sharpener of cylindrical shape, with conical point, the tubular guide part having a small waycutting knife and interior feed-thread, while the conical part has a cutter-blade for the point and an interior threaded surface for pointing the lead.
In the drawing, A represents the cylindrical section of my improved pencil-Sharpener, and B the conical point of the same, which are made of any suitable sheet metal, and finished in nickel or silver plating, as desired.
The tubular section A is provided with ribbed or milled rims a at the ends for the more convenient handling of the sharpening device. A small inwardly-projecting cutter, G, and` exit-hole a' for the small shavings, are arranged at the end of the tubular section, and serve for the purpose of reducing the diameter of the pencil, so that when the sharpener is screwed up thereon it is iiush therewith, as the outer diameter of the Sharpener is equal to the diameter of the pencil, or of smaller diameter, if desired. An` interior screw-thread, b, of the tubular section A, of suitable pitch, serves to feed the small cutter forward, so as to form a way for the sharpener on the pencil until a second cutting block or knifeLD, attached along a recess, d, of the conical point, cuts off the wood at the end of the pencil, and works finally the lead point through the small orifice at the apex of the conical point B of the Sharpener. The conical point B is arranged at the inside near the opening with a threaded surface or' a small le, e, for the purpose of pointing the lead simultaneously with the cutting of the wood. When the' Sharpener is fairly seated on the pencil, as shown in Fig. l, a few turns of the same suffice to point the pencil Whenever the lead has become dull, the turning of the sharpener producing its forward feeding and cutting on the pencil simultaneously with the pointing of the end of the cutter and thread or tile. The sharpener is thus gradually worked along the pencil until the same is entirely used up, and thereby the pointing obtained with great facility at any moment, forming thereby a convenient attachment and eiective sharpening device to lead-pencils. The way-cutting blade may be dispensed with, in which case the guide part has to be fitted on the pencil to move thereon, the interior thread producing the feed as before.
Having thus described my invention, I claim as new and desire to secure by Letters Patentl. A continuous pencil-Sharpener, having an interior feed thread and small way-cutting blade at the end of the guide part, substantially as and for the purpose set forth.
2. The conical point of the Sharpener, having an interior threaded surface or lead-file, substantially as set forth.
GEORGE AGNEW. Witnesses:
PAUL GoEPEL, G. SEDGWICK.
Publications (1)
Publication Number | Publication Date |
---|---|
US189592A true US189592A (en) | 1877-04-17 |
Family
ID=2258999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US189592D Expired - Lifetime US189592A (en) | Improvement in pencil-sharpeners |
Country Status (1)
Country | Link |
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US (1) | US189592A (en) |
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0
- US US189592D patent/US189592A/en not_active Expired - Lifetime
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