GB1222448A - Improvements in or relating to propelling pencils - Google Patents
Improvements in or relating to propelling pencilsInfo
- Publication number
- GB1222448A GB1222448A GB52145/68A GB5214568A GB1222448A GB 1222448 A GB1222448 A GB 1222448A GB 52145/68 A GB52145/68 A GB 52145/68A GB 5214568 A GB5214568 A GB 5214568A GB 1222448 A GB1222448 A GB 1222448A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- knob
- lead
- sleeve
- rod
- 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
- B43K21/08—Writing-core feeding mechanisms with the writing-cores fed by screws
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
1,222,448. Propelling pencil. MERMAID ENG. CO. Ltd. 4 Nov., 1969 [4 Nov., 1968], No. 52145/68. Heading B6P. A propelling pencil comprises a tube 13, internally threaded at one end, the threads 14 of the tube engaging threads 15 of a cylindrical element 16 formed from plastics and moulded around the end of a wire 31, which wire serves to project the lead (not illustrated). The threads 15 of the element 16 are only on one half of its cylindrical surface. An operating rod 19 is of arcuate cross-section and of such a radius that it will fit between the unthreaded portion of the element 16 and the inner wall of the threaded tube 13 so that rotation of the rod 19 by a knob 20 causes the element 16 also to rotate and hence move axially relatively to the tube 13 and the rod 19. The knob 20 has a gripping piece 22 and a tubular portion 23 of smaller diameter than the rest of the knob 20. The tubular portion is formed with an annular flange 17 at the extremity thereof, which flange co-operates with a circumferential groove 30 formed in a flexibly resilient plastics sleeve 24. The knob 20 and rod 19 are mounted for rotational, non-axial movement by the plastics sleeve 24 which fits over the outside of the tube 13. The sleeve 24 is split by two longitudinally extending diametrically opposed cuts 28 into two jaws 29. The pencil casing 11, when fitted over the end of a tube 33 carried by the sleeve 24, engages with bosses 59 on the jaws 29, so that the jaws 29 grip the knob 20 to prevent its easy rotation. A guide within which the pencil lead is movable longitudinally includes a tube 41 and blade 50 of resilient material of cylindrical shape and formed with conical indentations 51 at its opposite ends. The indentations guide the lead into a puncture 52 extending between the apices 53 of the indentations. The lead is held by the resilience of the material until urged through the puncture by movement of the wire 31 or direct movement of the lead by an external force. Compartments 34 defined by the tube 33 carried by the sleeve 24 are utilized for carrying spare leads. An annular stopper 35 is fitted over the end 38 of an extension tube 36 fitted tightly into the threaded tube 13.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB52145/68A GB1222448A (en) | 1968-11-04 | 1968-11-04 | Improvements in or relating to propelling pencils |
US873983A US3630628A (en) | 1968-11-04 | 1969-11-04 | Propelling pencils |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB52145/68A GB1222448A (en) | 1968-11-04 | 1968-11-04 | Improvements in or relating to propelling pencils |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1222448A true GB1222448A (en) | 1971-02-10 |
Family
ID=10462801
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB52145/68A Expired GB1222448A (en) | 1968-11-04 | 1968-11-04 | Improvements in or relating to propelling pencils |
Country Status (2)
Country | Link |
---|---|
US (1) | US3630628A (en) |
GB (1) | GB1222448A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4997299A (en) * | 1989-11-21 | 1991-03-05 | Suzuno Kasei Co., Ltd. | Cosmetic container |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4141663A (en) * | 1977-03-07 | 1979-02-27 | Hallmark Cards, Incorporated | Jam-resistant lead feed mechanism for mechanical pencil |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1490244A (en) * | 1917-12-04 | 1924-04-15 | Wahl Co | Self-loading magazine pencil |
US1828527A (en) * | 1922-10-19 | 1931-10-20 | Howard L Fischer | Pencil |
GB422767A (en) * | 1933-07-13 | 1935-01-17 | Ludwig Frederick Brenner | Improvements in and relating to propelling pencils |
US2319823A (en) * | 1942-05-25 | 1943-05-25 | Eversharp Inc | Mechanical pencil |
-
1968
- 1968-11-04 GB GB52145/68A patent/GB1222448A/en not_active Expired
-
1969
- 1969-11-04 US US873983A patent/US3630628A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4997299A (en) * | 1989-11-21 | 1991-03-05 | Suzuno Kasei Co., Ltd. | Cosmetic container |
Also Published As
Publication number | Publication date |
---|---|
US3630628A (en) | 1971-12-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2848809A (en) | Retractable scratch awl | |
GB1089150A (en) | Improvements relating to hypodermic needle assemblies | |
US2979029A (en) | Eyebrow pencil and sharpener therefor | |
US3232276A (en) | Eyebrow pencil and sharpener | |
GB1073204A (en) | A device for selective fine or gross control of a push-pull cable core | |
US2565715A (en) | Pencil with lead advancing and tensioning mechanism | |
GB1222448A (en) | Improvements in or relating to propelling pencils | |
US2286878A (en) | Adjustable eraser holder | |
FR2263687A1 (en) | Fishing reel holder having tubular section - which can slide long rod and is fixed by clamp with cylindrical internal thread | |
US2815002A (en) | Erasing device having a projectable and retractable eraser | |
US2293993A (en) | Eraser for mechanical pencils | |
GB863995A (en) | Improvements in dispensers for cosmetic and other materials | |
US2756747A (en) | Hypodermic syringe having an adjustable plunger | |
GB1515219A (en) | Portable extrusion presses | |
GB1004473A (en) | Improvements in or relating to articles made from synthetic thermoplastic material | |
FR2438986A1 (en) | Case for stick of cosmetic product - has cylindrical stick holder with groove on case engaging screw | |
US2491061A (en) | Variable grip-tip pencil with screw feed | |
US2720863A (en) | Mechanical or automatic pencils | |
US2516938A (en) | Mechanical pencil with screw feed | |
US2454305A (en) | Drafting compass | |
US2128052A (en) | Fountain pen | |
GB957274A (en) | Device for use with squeeze tubes particularly for cosmetic preparations | |
US2613644A (en) | Eraser and cap assembly for pencils | |
US2658480A (en) | Pencil attached adjustable eraser | |
GB888128A (en) | Improvements relating to nib-holders for fountain pens |