GB1329258A - Indicating devices - Google Patents
Indicating devicesInfo
- Publication number
- GB1329258A GB1329258A GB4292570A GB4292570A GB1329258A GB 1329258 A GB1329258 A GB 1329258A GB 4292570 A GB4292570 A GB 4292570A GB 4292570 A GB4292570 A GB 4292570A GB 1329258 A GB1329258 A GB 1329258A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pointer
- scale
- prism
- path
- curvature
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/08—Pointers; Scales; Scale illumination
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Details Of Measuring Devices (AREA)
- Details Of Measuring And Other Instruments (AREA)
Abstract
1329258 Indicating devices AGFAGEVAERT A G 8 Sept 1970 [13 Sept 1969] 42925/70 Heading G1J An indicating device comprises a rotatable pointer 13 having its free end 14 parallel to its axis of rotation, the free end 14 being viewed through a window 4 in the housing via a reflecting surface 6 so that it appears to move laterally. In Fig.1, the reflecting surface 6 is provided on one side of a translucent prism 3 and a scale 10 is provided on the plane side 9 of the prism and viewed by reflection in surface 6. A translucent member may be provided between the scale and the pointer 14 to reduce parallax and may have a cylindrical surface adjacent the pointer of a curvature equal to or less than that of the path of the pointer 14. The scale may be cylindrical and have a curvature less than or equal to that of the path of the pointer 14 and may be provided either in front of the pointer Fig. 2 (not shown) or behind the pointer Fig. 3 (not shown), and Fig. 5. Where the curvature of the scale is less than that of the pointer path a translucent member may be interposed between the scale and the pointer Fig. 7 (not shown) to reduce parallax, the surface of the member adjacent the pointer being cylindrical and of the same curvature as the pointer path. The prism 3 may have its side adjacent the pointer 14 curved Fig.4 (not shown) a scale being fitted either on the curved surface or within the prism. In the embodiment of Fig. 5a the prism 3 has a further plane surface 50 behind which a second scale 51 is provided which may be curved or flat. The scales are removable from guide slots and may be coloured and have an illuminating device. The pointer end 14 may be of circular cross-section and may be located between the prism and its axis of rotation.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691946507 DE1946507C3 (en) | 1969-09-13 | Display device |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1329258A true GB1329258A (en) | 1973-09-05 |
Family
ID=5745439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4292570A Expired GB1329258A (en) | 1969-09-13 | 1970-09-08 | Indicating devices |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT300953B (en) |
CH (1) | CH518612A (en) |
GB (1) | GB1329258A (en) |
-
1970
- 1970-06-09 AT AT519070A patent/AT300953B/en not_active IP Right Cessation
- 1970-08-06 CH CH1184070A patent/CH518612A/en not_active IP Right Cessation
- 1970-09-08 GB GB4292570A patent/GB1329258A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AT300953B (en) | 1972-08-10 |
DE1946507B2 (en) | 1975-06-05 |
CH518612A (en) | 1972-01-31 |
DE1946507A1 (en) | 1971-03-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |