FIELD: device for clamping sheets to drawing board. SUBSTANCE: drawing board has openings, threaded bushings driven into drawing board openings from their rear side and provided with heads, and spring-biased retainer cooperating with inversely-conical surface of rod, which is provided with head formed as wedge-shaped plate curved toward drawing board. Wedge-shaped plate is fastened on end side. When clamp is in working position, height of raised portion above sheet surface does not exceed 0.2 mm. EFFECT: increased convenience for user and improved retaining of clamp. 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SHEET CLAMP (THIRD DESIGN VERSION) | 1999 |
|
RU2142370C1 |
| DRAWING DEVICE | 1994 |
|
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| COMPRESSOR CONNECTING ROD-AND-PISTON GROUP | 1996 |
|
RU2123612C1 |
| SIPHON | 1995 |
|
RU2093713C1 |
