GB581877A - Improvements in pencil sharpeners - Google Patents
Improvements in pencil sharpenersInfo
- Publication number
- GB581877A GB581877A GB1353944A GB1353944A GB581877A GB 581877 A GB581877 A GB 581877A GB 1353944 A GB1353944 A GB 1353944A GB 1353944 A GB1353944 A GB 1353944A GB 581877 A GB581877 A GB 581877A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blade
- parts
- recesses
- pencil
- fit
- 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
Links
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
Landscapes
- Drawing Aids And Blackboards (AREA)
- Knives (AREA)
Abstract
581,877. Pencil-sharpeners. MUNN, R. B. S. July 14, 1944, No. 13539. [Class 146 (iii)] A pencil-sharpener is formed of two parts 1, 7 adapted to be connected by being slid together, and to grip a cutting blade between them so that the blade is enclosed within the sharpener, recesses being formed in the parts to fit a pencil and to present it to the blade edge, and to receive the chips. As shown, two cylindrical recesses 12 are formed in the part 1 to fit the pencils, and are extended by complementary semi-cylindrical grooves 14 in both parts 1, 7 to receive the chips. The holes in the blade, which preferably is of the safety-razor two edged type, fit over pins 4 on the part 1, and the part 7 has a longitudinal groove 10 to allow it to slide into position. Inwardly-projecting flanges 6 on the side walls of the part 1 engage recesses 9 in the part 7, and these flanges are deeper at the centre of their length to force the part 7 against the part 1 and so grip the blade. A convex surface 3 on the part 1 co-operates with a similar concave surface 8 on the part 7 to curve the blade. The parts 1, 7 are made from plastic material or metal. The recesses 12 may be of different diameters for dealing with pencils of differing sizes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1353944A GB581877A (en) | 1944-07-14 | 1944-07-14 | Improvements in pencil sharpeners |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1353944A GB581877A (en) | 1944-07-14 | 1944-07-14 | Improvements in pencil sharpeners |
Publications (1)
Publication Number | Publication Date |
---|---|
GB581877A true GB581877A (en) | 1946-10-28 |
Family
ID=10024804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1353944A Expired GB581877A (en) | 1944-07-14 | 1944-07-14 | Improvements in pencil sharpeners |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB581877A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2232120A (en) * | 1989-06-01 | 1990-12-05 | David Robin Stowell | Pencil sharpener |
-
1944
- 1944-07-14 GB GB1353944A patent/GB581877A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2232120A (en) * | 1989-06-01 | 1990-12-05 | David Robin Stowell | Pencil sharpener |
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