GB722008A - Improvements relating to drawing board appliances - Google Patents
Improvements relating to drawing board appliancesInfo
- Publication number
- GB722008A GB722008A GB1432151A GB1432151A GB722008A GB 722008 A GB722008 A GB 722008A GB 1432151 A GB1432151 A GB 1432151A GB 1432151 A GB1432151 A GB 1432151A GB 722008 A GB722008 A GB 722008A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shelf
- bearing
- drawing board
- draughting
- pivoted
- 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
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/02—Draughting machines or drawing devices for keeping parallelism
- B43L13/04—Guides for rulers
- B43L13/06—Guides for rulers with pivoted guide rods
Landscapes
- Pivots And Pivotal Connections (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
722,008. Draughting-machines. HORNIG, V. March 10, 1952 [June 16, 1951], No. 14321/51. Class 97 (3). A draughting-machine comprises parallel linkages 1, 2, the inner ends of which are pivoted to a joint ring 5 and the outer ends of which are pivoted to a rocker bar 7, supported at 24 by the drawing board, and to a drawing instrument 11 respectively. Each link is slotted at each end thereofas at 13 and receives a bearing 14 for a pivot pin 15; a screw 17 extends across the slot so that the bearing may be adjusted to take up wear. Rocker bar 7 is secured to a shelf 29 beneath and parallel to the plane of the linkage 1, a ball bearing 33 being interposed between an arm of this linkage and the shelf, which latter serves to reduce the bending movement and is supported by an adjusting screw 36 whereby the shelf can be raised or lowered. Specification 650,598 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1432151A GB722008A (en) | 1951-06-16 | 1951-06-16 | Improvements relating to drawing board appliances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1432151A GB722008A (en) | 1951-06-16 | 1951-06-16 | Improvements relating to drawing board appliances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB722008A true GB722008A (en) | 1955-01-19 |
Family
ID=10039084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1432151A Expired GB722008A (en) | 1951-06-16 | 1951-06-16 | Improvements relating to drawing board appliances |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB722008A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105774334A (en) * | 2014-09-25 | 2016-07-20 | 杨腾跃 | Bar chart drawing device for economics teaching |
| CN105774333A (en) * | 2014-09-25 | 2016-07-20 | 杨腾跃 | Bar chart drawing device for economics teaching |
| CN105966125A (en) * | 2014-09-25 | 2016-09-28 | 杨腾跃 | Bar chart plotter for teaching of economics |
-
1951
- 1951-06-16 GB GB1432151A patent/GB722008A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105774334A (en) * | 2014-09-25 | 2016-07-20 | 杨腾跃 | Bar chart drawing device for economics teaching |
| CN105774333A (en) * | 2014-09-25 | 2016-07-20 | 杨腾跃 | Bar chart drawing device for economics teaching |
| CN105966125A (en) * | 2014-09-25 | 2016-09-28 | 杨腾跃 | Bar chart plotter for teaching of economics |
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