GB311325A - Improvements in or relating to drawing instruments - Google Patents
Improvements in or relating to drawing instrumentsInfo
- Publication number
- GB311325A GB311325A GB13300/29A GB1330029A GB311325A GB 311325 A GB311325 A GB 311325A GB 13300/29 A GB13300/29 A GB 13300/29A GB 1330029 A GB1330029 A GB 1330029A GB 311325 A GB311325 A GB 311325A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pencil
- arms
- sleeve
- workpiece
- pivot
- 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
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H7/00—Marking-out or setting-out work
- B25H7/04—Devices, e.g. scribers, for marking
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
311,325. Waggonfabrik Geb. Gastell Ges. May 9, 1928, [Convention date]. Drawing-appliances.-A device for tracing on one surface of a workpiece, such as a wooden plank, a reproduction of a line &c. on the other surface, comprises two arms one carrying a tracing point and the other a pencil &c., the arms being connected together as by a pivot and being adapted to be passed one over each surface of the plank &c. so that the tracing point and the pencil &c. can be moved in unison over the said surfaces. In the form shown the arms 1, 2 are connected by a pivot 3 and are extended beyond the pivot to form handles 4. The arm 1 is provided at its outer end with a member 5 which rests on the workpiece and prevents tilting of the arm, this member carrying supports 9, 10, 11 for a sleeve 8 in which the tracing point 6 is adjustably mounted. The arm 2 carries at its outer end a bush 12 in which is adjustably mounted a sleeve 13 carrying the pencil &c. 7 which can be adjusted within the sleeve by a rod 16. The arrangement is such that the pencil 7 is in line with the tracer 6. The pencil is preferably acted upon by a spring within the sleeve 13 so that it can be withdrawn from engagement with the workpiece to enable the device to be moved to a fresh position. The means for withdrawing the pencil may consist of a finger piece mounted near the handle and acting through a lever or cord and pulley device. Alternatively a spring may be disposed between the handles 4 so that the members 6, 7 move apart when the pressure on the handles is removed. In another form the arms 1, 2 are rigidly connected together and each of the members 6, 7 is resiliently mounted in its support.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE311325X | 1928-05-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB311325A true GB311325A (en) | 1930-07-17 |
Family
ID=6129110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13300/29A Expired GB311325A (en) | 1928-05-09 | 1929-04-29 | Improvements in or relating to drawing instruments |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB311325A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2459351A1 (en) * | 2009-07-28 | 2012-06-06 | Thingamejig Pty Ltd | Method and apparatus for transcribing a profile |
| CN110153981A (en) * | 2019-06-30 | 2019-08-23 | 中冶建工集团有限公司 | A kind of building structure lineation device and scribble method |
-
1929
- 1929-04-29 GB GB13300/29A patent/GB311325A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2459351A1 (en) * | 2009-07-28 | 2012-06-06 | Thingamejig Pty Ltd | Method and apparatus for transcribing a profile |
| EP2459351A4 (en) * | 2009-07-28 | 2014-06-25 | Thingamejig Pty Ltd | Method and apparatus for transcribing a profile |
| CN110153981A (en) * | 2019-06-30 | 2019-08-23 | 中冶建工集团有限公司 | A kind of building structure lineation device and scribble method |
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