US154982A - Improvement in pencil-sharpeners - Google Patents
Improvement in pencil-sharpeners Download PDFInfo
- Publication number
- US154982A US154982A US154982DA US154982A US 154982 A US154982 A US 154982A US 154982D A US154982D A US 154982DA US 154982 A US154982 A US 154982A
- Authority
- US
- United States
- Prior art keywords
- pencil
- plate
- groove
- sharpeners
- cutting
- 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
- 239000002023 wood Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229920000638 styrene acrylonitrile Polymers 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
- My invention relates to a simple and cheap implement lfor sharpening lead-pencils.
- FIG. 1 is a perspective view of my pencil- Sharpener.
- Fig. 2 shows the cutter elevated.
- Fig. 3 shows the relative position of the cutter and discharge for the-chips.
- A represents a blockV of wood, metal, or other suitable material of the desired length, and having a deep groove, b, cut or otherwise formed in one side of it. The upper portion of this groove is beveled outward toward the side edges of the block, as shown.
- C is a piece of properly-tempered steel plate, which is formed into an angle corresponding to the angle of the beveled edges of the groove b, so that it can be placed in the groove b, and thus form a V- groove inside of it.
- This angleplate is secured in place by a single screw at e, which permits it to be turned outward or opened, as shown at Fig. 2, the screw serving as a pivot.
- the free end of this angle-plate is beveled from the bottom to the top, so as to form a beveled V-shaped opening at its end,
- the V- plate C extends from one end of the block A to within a short distance of the opposite end, and a short angle-plate, d, similar to the plate C, is secured in this end of the groove, in front of the cutting-points.
- This plate d is y thinner than the plate C, and the ends which is next to the cutting bits or points of the plate C are cut at an opposite angle to them, and are set at a short distance in advance of the cutting points, thus leaving a narrow space between the edges which leads into the groove b below.
- the bottom of the V- plate C- I make a file, f, by roughening the plate a short distance up the sides and along the bottom ot' the V-groove.
- the cutting edge or bit is only intended to cut away the wood of the pencil and have the lead exposed, a few rubs of the exposed lead will then point it ready for use.
- the shavings of the wood will pass through the slot or space between the edges of the two plates C d, into the groove b beneath, from whence they can be easily removed by pushing the pencil through the hole or groove.
- the block A having the ⁇ groove b, with its beveled corners, in combination with the V- plate C, with its angular cutting-edges and ile f, and the angular gage-plate d, all combined and arranged substantially as above described.
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- Drawing Aids And Blackboards (AREA)
Description
1. s. HALL. Pencil-Sharpeners.
Patented Sept. i15, 1874.
Inventur 'Witnesses am Je UNITED STATES PATENT CFEICEc JOHN S. HALL, OF SAN FRANCISCO, CALIFORNIA.
IMPROVEMENT IN PENCIL'SHARPENERS.
Specification forming part of Letters Patent N0. 154,982, dated September 15, 1874; application filed April 4, 1874.
To all whomit may concer-n:
Be it known that I, JOHN S. HALL, of Sa Francisco city and county, State of California,
have invented an Improved Pencil-Sharpener 5 and I do hereby declare the following description and accompanying drawings are sufficient to enable any person skilled in the art or science to which it most nearly appertains to make and use my said invention or improvement without further invention or experiment.
My invention relates to a simple and cheap implement lfor sharpening lead-pencils.
In order to explain the construction and arrangement of my invention, reference is had to the accompanying drawing forming a part of this speciiication, in which- Figure 1 is a perspective view of my pencil- Sharpener. Fig. 2 shows the cutter elevated. Fig. 3 shows the relative position of the cutter and discharge for the-chips.
A represents a blockV of wood, metal, or other suitable material of the desired length, and having a deep groove, b, cut or otherwise formed in one side of it. The upper portion of this groove is beveled outward toward the side edges of the block, as shown. C is a piece of properly-tempered steel plate, which is formed into an angle corresponding to the angle of the beveled edges of the groove b, so that it can be placed in the groove b, and thus form a V- groove inside of it. This angleplate is secured in place by a single screw at e, which permits it to be turned outward or opened, as shown at Fig. 2, the screw serving as a pivot. The free end of this angle-plate is beveled from the bottom to the top, so as to form a beveled V-shaped opening at its end,
Y the angular sides of which are sharpened so as to provide a cutting upper edge. The V- plate C extends from one end of the block A to within a short distance of the opposite end, and a short angle-plate, d, similar to the plate C, is secured in this end of the groove, in front of the cutting-points. This plate d is y thinner than the plate C, and the ends which is next to the cutting bits or points of the plate C are cut at an opposite angle to them, and are set at a short distance in advance of the cutting points, thus leaving a narrow space between the edges which leads into the groove b below. In the bottom of the V- plate C- I make a file, f, by roughening the plate a short distance up the sides and along the bottom ot' the V-groove.
Now, as the plate d is thinner than the cutting-edges of the plate C, if a lead-pencil be held at the proper angle and drawn back and forth through the V-groove, the cutting points Aor bit will take off a thin shaving at each stroke, and if the pencil be turned continually it will be beveled to a point in the manner of sharpening a lead-pencil.
The cutting edge or bit is only intended to cut away the wood of the pencil and have the lead exposed, a few rubs of the exposed lead will then point it ready for use.
The shavings of the wood will pass through the slot or space between the edges of the two plates C d, into the groove b beneath, from whence they can be easily removed by pushing the pencil through the hole or groove.
When the cutting-edge becomes dull it will only be necessary to open or turn the V-plate C outward upon its single screw or pivot and whet the points upon a stone in the manner of sharpening a V-chisel.
Having thus described my invention, what I claim, and desire to secure by Letters Patent. is-
The block A, having the `groove b, with its beveled corners, in combination with the V- plate C, with its angular cutting-edges and ile f, and the angular gage-plate d, all combined and arranged substantially as above described.
In witness whereof I hereunto set my hand and seal. L
JOHN S. HALL. [L. 5.] Witnesses:
J oHN L. BOONE, 0. M. RIcHARDsoN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US154982A true US154982A (en) | 1874-09-15 |
Family
ID=2224392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US154982D Expired - Lifetime US154982A (en) | Improvement in pencil-sharpeners |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US154982A (en) |
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0
- US US154982D patent/US154982A/en not_active Expired - Lifetime
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