US129956A - Improvement in pencil-sharpeners - Google Patents
Improvement in pencil-sharpeners Download PDFInfo
- Publication number
- US129956A US129956A US129956DA US129956A US 129956 A US129956 A US 129956A US 129956D A US129956D A US 129956DA US 129956 A US129956 A US 129956A
- Authority
- US
- United States
- Prior art keywords
- pencil
- sharpeners
- improvement
- plate
- knife
- 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
- 239000002184 metal Substances 0.000 description 6
- 210000000088 Lip Anatomy 0.000 description 2
- 241000733322 Platea Species 0.000 description 2
- 210000003813 Thumb Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000002023 wood 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
Definitions
- Figure l of the drawing is a representationl of a front view of my invention.
- Fig.f2 is a planview of the same on an enlarged scale.
- Fig. 3 is a front viewwith plate E removed.
- Figs. 4, 5, and 6 are details.
- This invention has relation to lead-pencil Sharpeners; and the novelty consists in the combination, with ahollow conical knife for shaping the wood, of a rough surface inclosed between metal lips, and used for the purpose of pointing andnishing the lead, as hereinafter described.
- A represents ⁇ sents a strip of metal, having one of its ends bent to form a hollow cone, a, with a longitudinal opening at b.
- B designates a knife, secured to the strip or plate A, its edge entering the cone through the opening b.
- the knife is slotted at c, to render it adjustable, and is secured by screws d, so that it may be removed for the purpose of being sharpened.
- E represents a plate, covering the knife, and held by ⁇ the screws d. Said plate is designed for the purpose of preventing the knife from becoming loose, but does not form an essential ele- ⁇ ment of my invention.
- the F represents a strip or plate of metal secured to ⁇ the back part of the plate A at a'distance therefrom sufficient to admit of the arrangement of two pieces of emof the strip F, on aline with Vthe point of the cone, may be hanged, so as to overlap the edge of the strip A.
- the pencil After the end of the pencil has been cut in the cone, the pencil is to be taken hold of near the point by the thumb and fore-linger, and the projecting lead inserted between the pieces of emery-paper, and, by proper manipulation, iinished ott' to as ine a point as may be desired.
- the point may be made either Wedgeshaped or conical, according to the manner in which itis moved between the rough surfaces.
- a F pieces of soft cloth d2 or other cushon-likematerial may be advantageously placed.
- the effeet will be to allow the emery-paper to give, and thus prevent the lead from bein gbroken.
- the plateF being, for this purpose, removed by loosening the screw e.
- the lead-pencil Sharpener consisting of the plateA,bent at one end into conical form, the slotted adjustable knife B, screws alv c, the bent plate F, having oblique inner edge, and the cushioned emery-leaves d1, substantially as shown and described.
Landscapes
- Sanitary Thin Papers (AREA)
Description
PATENT OFFICE.
DANIEL HOFFMAN, 0F FoTTsvILLE,PENNSYLVANIA.
IMPROVEMENT IN PENCIL-SHARPENE'RS.
Specification forming part of Letters Patent No. 129,956, dated July 30, 1872.
To all whom it may concern:
Be it known that I, DANIEL HOFFMAN, of Pottsville, in the county of Schuylkill and State of Pennsylvania, have invented a new and valuable Improvement in Pencil-Sharpeners and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to th annexed drawing making a part of this specification, and to the letters and figures of reference marked thereon.
Figure l of the drawing is a representationl of a front view of my invention. Fig.f2 is a planview of the same on an enlarged scale.
Fig. 3 is a front viewwith plate E removed.
Figs. 4, 5, and 6 are details.
This invention has relation to lead-pencil Sharpeners; and the novelty consists in the combination, with ahollow conical knife for shaping the wood, of a rough surface inclosed between metal lips, and used for the purpose of pointing andnishing the lead, as hereinafter described.
Referring to the drawing, A represents `sents a strip of metal, having one of its ends bent to form a hollow cone, a, with a longitudinal opening at b. B designates a knife, secured to the strip or plate A, its edge entering the cone through the opening b. The knife is slotted at c, to render it adjustable, and is secured by screws d, so that it may be removed for the purpose of being sharpened. E represents a plate, covering the knife, and held by `the screws d. Said plate is designed for the purpose of preventing the knife from becoming loose, but does not form an essential ele-` ment of my invention. F represents a strip or plate of metal secured to `the back part of the plate A at a'distance therefrom sufficient to admit of the arrangement of two pieces of emof the strip F, on aline with Vthe point of the cone, may be hanged, so as to overlap the edge of the strip A.
After the end of the pencil has been cut in the cone, the pencil is to be taken hold of near the point by the thumb and fore-linger, and the projecting lead inserted between the pieces of emery-paper, and, by proper manipulation, iinished ott' to as ine a point as may be desired. The point may be made either Wedgeshaped or conical, according to the manner in which itis moved between the rough surfaces.
Between the emery-paper and the plates A F pieces of soft cloth d2 or other cushon-likematerial may be advantageously placed. The effeet will be to allow the emery-paper to give, and thus prevent the lead from bein gbroken. When the emery-paper becomes worn and useless, it may bereplaced by new material, the plateF being, for this purpose, removed by loosening the screw e.
I claim as my invention- The lead-pencil Sharpener, consisting of the plateA,bent at one end into conical form, the slotted adjustable knife B, screws alv c, the bent plate F, having oblique inner edge, and the cushioned emery-leaves d1, substantially as shown and described.
In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.
DANIEL HOFFMAN. Witnesses: WM. R. SMITH, CHAs. FRAILEY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US129956A true US129956A (en) | 1872-07-30 |
Family
ID=2199374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US129956D Expired - Lifetime US129956A (en) | Improvement in pencil-sharpeners |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US129956A (en) |
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0
- US US129956D patent/US129956A/en not_active Expired - Lifetime
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