GB623759A - Improvements in pencils - Google Patents
Improvements in pencilsInfo
- Publication number
- GB623759A GB623759A GB29900/46A GB2990046A GB623759A GB 623759 A GB623759 A GB 623759A GB 29900/46 A GB29900/46 A GB 29900/46A GB 2990046 A GB2990046 A GB 2990046A GB 623759 A GB623759 A GB 623759A
- Authority
- GB
- United Kingdom
- Prior art keywords
- collet
- lead
- point section
- secured
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K21/00—Propelling pencils
- B43K21/02—Writing-core feeding mechanisms
- B43K21/22—Writing-cores gripping means, e.g. chucks
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
623,759. Propelling pencils. AMERICAN LEAD PENCIL CO. Oct. 7, 1946, No. 29900. Convention date, March 25, 1944. [Class 146(iii)] A pencil of the type in which a releasable clutch is provided to hold the lead in writing position and to permit forward movement of the lead when it is released, is provided with a separable unit comprising a point section having a bore and a lead-gripping collet concealed and secured within the bore. The point section 9 which may be externally knurled is screwed to a lead tube 7 secured in a pencil casing 5 and carries a collet which holds a lead 13 in writing position. The collet has a flanged end 17, resilient arms 18 and an inclined surface 19 co-operating with a similar surface 14 in the point section 9. A shoulder 20 on the collet engages a shoulder 16 formed internally of the point section to secure the collet therein. In modifications the collet may be secured by a sleeve or a split ring inserted in the point section.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US623759XA | 1944-03-25 | 1944-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB623759A true GB623759A (en) | 1949-05-23 |
Family
ID=22042072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29900/46A Expired GB623759A (en) | 1944-03-25 | 1946-10-07 | Improvements in pencils |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB623759A (en) |
-
1946
- 1946-10-07 GB GB29900/46A patent/GB623759A/en not_active Expired
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