GB778312A - Improvements in liquid level indicators - Google Patents
Improvements in liquid level indicatorsInfo
- Publication number
- GB778312A GB778312A GB3424854A GB3424854A GB778312A GB 778312 A GB778312 A GB 778312A GB 3424854 A GB3424854 A GB 3424854A GB 3424854 A GB3424854 A GB 3424854A GB 778312 A GB778312 A GB 778312A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gauge
- glass
- length
- level
- slot
- 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
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/02—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by gauge glasses or other apparatus involving a window or transparent tube for directly observing the level to be measured or the level of a liquid column in free communication with the main body of the liquid
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
778,312. Gauge glasses. GORDON & CO., Ltd., J., and SPANNER BOILERS, Ltd. Feb. 10, 1956 [Nov. 25, 1954], No. 34248/54. Class 123 (1). In a liquid level indicating device comprising a gauge formed of two glass plates 5, 6 and side plates 3, 4 clamped between slotted front and rear plates 1, 2 and containing an opaque liquid, e.g. mercury, the level of which varies proportionally with variations in the liquid level to be indicated, the gauge being illuminated from the rear by a lamp 8 disposed in a housing 7, an additional slot 9 (Fig. 2) is provided through the glass mounting beside and parallel to the gauge glass slot and of length equal to the full significant length of the gauge. Alternatively, Fig. 3, a strip of translucent plastic 10 is fixed into a slot in the side edge of the housing 7 and bent as shown so that in either case a strip of light of length equal to the full range of the indicator is visible alongside the gauge glass to enable a comparison to be made between the full scale and the obscured length of the glass. The indicator tube may be coloured as shown in Fig. 1, the length of coloration being determined so that the red portion is obscured by the mercury &c., unless a dangerously low level of liquid occurs, the green portion extends over a length corresponding to the normal safe change in level and the yellow runs from a point indicating a dangerously high level upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3424854A GB778312A (en) | 1954-11-25 | 1954-11-25 | Improvements in liquid level indicators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3424854A GB778312A (en) | 1954-11-25 | 1954-11-25 | Improvements in liquid level indicators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB778312A true GB778312A (en) | 1957-07-03 |
Family
ID=10363274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3424854A Expired GB778312A (en) | 1954-11-25 | 1954-11-25 | Improvements in liquid level indicators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB778312A (en) |
-
1954
- 1954-11-25 GB GB3424854A patent/GB778312A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2343621A (en) | Projection system | |
| US4141247A (en) | Optical warning indicator means on bimetal measuring element | |
| GB778312A (en) | Improvements in liquid level indicators | |
| GB2047441B (en) | Electronic timepiece | |
| US2395718A (en) | Condition responsive indicating instrument | |
| GB1302077A (en) | ||
| GB980805A (en) | Improvements in or relating to tubing for instruments and other devices | |
| JPS5729922A (en) | Measuring device for refractive characteristic of optical system | |
| GB1307415A (en) | Sealed watch-case with leakage indicator | |
| US2805637A (en) | Instrument visual indicating means | |
| GB836172A (en) | Improvements in differential re-fraction liquid level gauges | |
| GB820473A (en) | Improvements in illuminated liquid level indicators | |
| GB495368A (en) | Improvements in thermometers | |
| GB1068581A (en) | Liquid level ascertaining means | |
| GB801587A (en) | Improvements in or relating to electricity measuring instruments | |
| GB468701A (en) | Improvements relating to indicating instruments | |
| GB319953A (en) | Improvements in or relating to weighing scales | |
| GB653672A (en) | Improvements in or relating to instruments or display devices having markings rendered fluorescent by invisible light rays | |
| GB888182A (en) | Improvements in pressure gauges | |
| GB1181227A (en) | Electric Meters | |
| GB1215950A (en) | Alarm device for hydraulic brakes | |
| CN115406501A (en) | Glass plate liquid level meter and liquid level measuring method | |
| GB423184A (en) | Improvements in and relating to apparatus for indicating and measuring differences in level | |
| GB367906A (en) | Improvements relating to thermometers, pressure gauges and like indicators for industrial purposes | |
| FR2417084A1 (en) | Analogue measuring instrument with rectilinear scale - utilises optical system with skirt on galvanometer movement intercepting light |