GB519909A - Improvements in or relating to drawing boards - Google Patents
Improvements in or relating to drawing boardsInfo
- Publication number
- GB519909A GB519909A GB3232738A GB3232738A GB519909A GB 519909 A GB519909 A GB 519909A GB 3232738 A GB3232738 A GB 3232738A GB 3232738 A GB3232738 A GB 3232738A GB 519909 A GB519909 A GB 519909A
- Authority
- GB
- United Kingdom
- Prior art keywords
- studs
- cords
- board
- secured
- bar
- 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
- B43L13/14—Devices for drawing in perspective
Landscapes
- Drawing Aids And Blackboards (AREA)
- Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
Abstract
519,909. Drawing boards. GRIFFITHS, B. J. Nov. 8, 1938. Nos. 32327/38, 1965/39 and 5256/39. [Class 11] A drawing board has a serrated track at its edges for studs which receive cords stretching across the board, the studs being adjustable within the track. The cords 25, Fig. 2, are resilient and are secured to'the shank 21 of studs 20 having a base 22 engaging around the head of a T- bar 15 secured to a frame 12 surrounding the board 10 which is retained by pivotal lugs 11. The edges 23 of the base 22 are bifurcated and engage serrations on the outer edge of the head of bar 15. The cords 25 may pass round drawing pins inserted into the board to represent an apex or round slides 28, Fig. 5, carried by rods 26 having hooked ends 27 secured to further adjustable studs. In a modification, Fig. 7, the board 30 is recessed at 31 to receive the elliptical bases 40 of studs 37. The channel 31 'is overhung by strips 32, 33, the former having its outer edge serrated and engaged by yokes joining the parallel discs 39, 40 of the studs. Bar 32 is gapped to permit entry and withdrawal of the studs. In a further form, Fig. 9, the cords 25 are spaced by the hooked ends 44 of a curved wire 43 which .is slidable along the cords and secured :n adjusted position by drawing pins 45.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3232738A GB519909A (en) | 1938-11-08 | 1938-11-08 | Improvements in or relating to drawing boards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3232738A GB519909A (en) | 1938-11-08 | 1938-11-08 | Improvements in or relating to drawing boards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB519909A true GB519909A (en) | 1940-04-09 |
Family
ID=10336881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3232738A Expired GB519909A (en) | 1938-11-08 | 1938-11-08 | Improvements in or relating to drawing boards |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB519909A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4010547A (en) * | 1974-05-14 | 1977-03-08 | Michael Kaitatzidis | Drafting machine |
-
1938
- 1938-11-08 GB GB3232738A patent/GB519909A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4010547A (en) * | 1974-05-14 | 1977-03-08 | Michael Kaitatzidis | Drafting machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US1931713A (en) | Wall and ceiling construction | |
| US2307377A (en) | Umbilical clip | |
| GB519909A (en) | Improvements in or relating to drawing boards | |
| GB737897A (en) | Staple | |
| GB533987A (en) | Improvements in conductor supporting clamps | |
| GB280430A (en) | Improvements in separable fasteners | |
| US2174678A (en) | young | |
| GB379132A (en) | Device for forming orthogonal diagrams | |
| DE679832C (en) | Method for clamping material to be traced in a device which is set up for breaks in daylight and in electrical light | |
| ES5750U (en) | Harrow. (Machine-translation by Google Translate, not legally binding) | |
| GB545205A (en) | Conductor hooks for belts, conveyor bands and the like | |
| GB532000A (en) | Improvements in or relating to curtain hooks | |
| GB540605A (en) | Slide fasteners | |
| GB471695A (en) | Improvements relating to pliers for twisting wire | |
| GB501231A (en) | A new or improved cutting board for meat and the like | |
| GB528505A (en) | Improvements in surgical bandages | |
| GB529155A (en) | An improved pull fastener | |
| GB602850A (en) | Improvements in and relating to lacing-needles | |
| CA357845A (en) | Tag fastener and guide | |
| ES6688U (en) | Manual loom for knitting (Machine-translation by Google Translate, not legally binding) | |
| GB546432A (en) | Improvements in and relating to devices for use in filing and securing papers on studs and the like | |
| GB552769A (en) | Securing fabric coverings to airfoil and like frames | |
| GB552327A (en) | An improved device for fixing paper notices and the like in position | |
| GB369525A (en) | Improvements in or relating to devices for fastening the edges of flexible materials | |
| CA309784A (en) | Nail and staple puller |