GB433995A - Improvements in or relating to pencils and methods of making the same - Google Patents
Improvements in or relating to pencils and methods of making the sameInfo
- Publication number
- GB433995A GB433995A GB34501/34A GB3450134A GB433995A GB 433995 A GB433995 A GB 433995A GB 34501/34 A GB34501/34 A GB 34501/34A GB 3450134 A GB3450134 A GB 3450134A GB 433995 A GB433995 A GB 433995A
- Authority
- GB
- United Kingdom
- Prior art keywords
- degreased
- pencil
- pencils
- leads
- acid
- 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
- B43K19/00—Non-propelling pencils; Styles; Crayons; Chalks
- B43K19/16—Making non-propelling pencils
Abstract
433,995. Pencils. VENUS PENCIL CO., Ltd., 173, Lower Clapton Road, London.- (American Lead Pencil Co. ; 500, Willow Avenue, Hoboken, New Jersey, U.S.A.) Nov. 30, 1934, No. 34501. Drawings to Specification. [Class 146 (iii)] Pencil leads containing greasy organic substance are treated to remove adhering grease from the surface, and then cemented to the wooden or like sheaths by glue or other adhesive applied directly to the degreased surface. The surface may be degreased by oxidizing, for example, by immersion in a bath of chromic acid formed by dissolving sodium bichromate or other chromate in sulphuric acid. The degreased leads are washed in water and afterwards, if desired, in an alkaline bath, to remove all traces of acid, before applying the adhesive.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR781976D FR781976A (en) | 1934-11-30 | Improvements to pencils and their manufacturing process | |
GB34501/34A GB433995A (en) | 1934-11-30 | 1934-11-30 | Improvements in or relating to pencils and methods of making the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB34501/34A GB433995A (en) | 1934-11-30 | 1934-11-30 | Improvements in or relating to pencils and methods of making the same |
Publications (1)
Publication Number | Publication Date |
---|---|
GB433995A true GB433995A (en) | 1935-08-23 |
Family
ID=10366431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB34501/34A Expired GB433995A (en) | 1934-11-30 | 1934-11-30 | Improvements in or relating to pencils and methods of making the same |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR781976A (en) |
GB (1) | GB433995A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2834479C3 (en) * | 1978-08-05 | 1981-04-16 | Schwan-Stabilo Schwanhäußer GmbH & Co, 8500 Nürnberg | Grease pencil |
DE4124210A1 (en) * | 1991-07-20 | 1993-01-21 | Schwan Stabilo Schwanhaeusser | METHOD FOR PRODUCING A PEN |
-
0
- FR FR781976D patent/FR781976A/en not_active Expired
-
1934
- 1934-11-30 GB GB34501/34A patent/GB433995A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR781976A (en) | 1935-05-25 |
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