US851025A - Pencil-sharpener. - Google Patents
Pencil-sharpener. Download PDFInfo
- Publication number
- US851025A US851025A US27625905A US1905276259A US851025A US 851025 A US851025 A US 851025A US 27625905 A US27625905 A US 27625905A US 1905276259 A US1905276259 A US 1905276259A US 851025 A US851025 A US 851025A
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- US
- United States
- Prior art keywords
- cutters
- slits
- channel
- sharpener
- pencil
- 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
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Classifications
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- 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
- B43L23/006—Sharpeners for pencils or leads with rasping surfaces
Definitions
- DONALD MCKENZIE OF SOUTH DUNEDIN, NEW ZEALAND.
- This invention relates to sharpeners for sharpening pencils, in particular to sharpeners which comprise a V-shaped channel in which are located the sharpening means, and is more especially intended for sharpening slate-pencils.
- the leading feature of the invention is the special construction of the V-channel and of the sharpening means therein.
- FIG. 1 is a plan of the sharpener enlarged.
- Fig. 2 is an end view of same.
- Fig. 3 is a longitudinal section on the line A B in Fig. 2.
- Fig. 4 is a view of the sharpener (re cuted size) in position on a slate.
- the sharpener 1 is made of sheet metal, preferably steel, and comprises a channel, the sides 4 5 of which form in cross-section the shape of the letter V. From the topmost edges of the channel depend legs 2 3, which are preferably about twice as long as the depth of the V-channel. The legs 2 3 have their ends turned outward, asshownin Fig. 2, and are adapted to be sprung over and grip the frame of a slate 9, as shown in Fig. 4.
- the sides 4 5 of the V-channel have a series of parallel transverse cutters 6 punched or otherwise suitably formed in the sidesof said channel, leaving corresponding parallel transverse slits 7 in said sides slightly in front of the cutters.
- the cutters and slits on one side 5 are preferably slightly in advance of the cutters and slits on the other side 4.
- the cutters 6 and slits 7 extend nearly the width of the sides of the channel 4 5, leaving a gutter 8 at the bottom of the channel.
- a pencil-sharpenerV-shaped in crosssec tion having integral therewith gripping-legs depending therefrom, and a series of parallel transverse cutters formed in the sides thereof, leaving corresponding slits therein, said cutters being bent up from said slits at an acute angle with the plane of said sides said cutters and slits extending nearly the width of said sides and the cutters and slits in one side being slightly in advance of those in the other, substantially as described.
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
D. MCKENZIE- PBNGIL SHARPENER.
APPLIGATIOH FILED AUG. 29. 1905.
l'nbenz'vr Wanda? J mvr'ws PATENTED APR 23, 1907.
DONALD MCKENZIE, OF SOUTH DUNEDIN, NEW ZEALAND.
PENCIL-SHARPENEH.
Specification of Letters Patent.
Patented April 23,1907.
Application filed August 29,1905. Serial No. 276,259.
To a whom it may concern.-
Be it known that I, DONALD MCKENZIE, of South Dunedin, New Zealand, town clerk, have invented certain new and useful Improvements in Pencil-Sharpeners, of which the following is a specification.
This invention relates to sharpeners for sharpening pencils, in particular to sharpeners which comprise a V-shaped channel in which are located the sharpening means, and is more especially intended for sharpening slate-pencils.
The leading feature of the invention is the special construction of the V-channel and of the sharpening means therein.
The invention is illustrated in the accompanying drawings, in which similar numerals of reference indicate similar parts, and in which- Figure 1 is a plan of the sharpener enlarged. Fig. 2 is an end view of same. Fig. 3 is a longitudinal section on the line A B in Fig. 2. Fig. 4 is a view of the sharpener (re duced size) in position on a slate.
The sharpener 1 is made of sheet metal, preferably steel, and comprises a channel, the sides 4 5 of which form in cross-section the shape of the letter V. From the topmost edges of the channel depend legs 2 3, which are preferably about twice as long as the depth of the V-channel. The legs 2 3 have their ends turned outward, asshownin Fig. 2, and are adapted to be sprung over and grip the frame of a slate 9, as shown in Fig. 4.
The sides 4 5 of the V-channel have a series of parallel transverse cutters 6 punched or otherwise suitably formed in the sidesof said channel, leaving corresponding parallel transverse slits 7 in said sides slightly in front of the cutters. The edges of the cutters 6, as will be seen on reference to Figs. 1 and 3, all face in the same direction, the cutters 6 being bent up from the slits 7 at an acute angle with the plane of the sides 4 5. The cutters and slits on one side 5 are preferably slightly in advance of the cutters and slits on the other side 4. The cutters 6 and slits 7 extend nearly the width of the sides of the channel 4 5, leaving a gutter 8 at the bottom of the channel.
In operation the end of the pencil is drawn backward and forward and rotated in the channel, so that each backward stroke draws the end against the cutters, the edges of which rapidly form the end to a point. The dust or scrapings fall through the slits 7 or into the gutter 8, whence they may be readily removed.
Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-
A pencil-sharpenerV-shaped in crosssec tion having integral therewith gripping-legs depending therefrom, and a series of parallel transverse cutters formed in the sides thereof, leaving corresponding slits therein, said cutters being bent up from said slits at an acute angle with the plane of said sides said cutters and slits extending nearly the width of said sides and the cutters and slits in one side being slightly in advance of those in the other, substantially as described.
In witness whereof I have hereunto set my hand in presence of two witnesses.
DONALD MCKENZIE.
Witnesses:
AUDREY JAoKsON, ROBERT OIIRIsTOPI-IER PARK.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27625905A US851025A (en) | 1905-08-29 | 1905-08-29 | Pencil-sharpener. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27625905A US851025A (en) | 1905-08-29 | 1905-08-29 | Pencil-sharpener. |
Publications (1)
Publication Number | Publication Date |
---|---|
US851025A true US851025A (en) | 1907-04-23 |
Family
ID=2919484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US27625905A Expired - Lifetime US851025A (en) | 1905-08-29 | 1905-08-29 | Pencil-sharpener. |
Country Status (1)
Country | Link |
---|---|
US (1) | US851025A (en) |
-
1905
- 1905-08-29 US US27625905A patent/US851025A/en not_active Expired - Lifetime
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