GB628719A - Improvements in liquid level indicators - Google Patents

Improvements in liquid level indicators

Info

Publication number
GB628719A
GB628719A GB2712347A GB2712347A GB628719A GB 628719 A GB628719 A GB 628719A GB 2712347 A GB2712347 A GB 2712347A GB 2712347 A GB2712347 A GB 2712347A GB 628719 A GB628719 A GB 628719A
Authority
GB
United Kingdom
Prior art keywords
liquid level
shutter
gap
barriers
screen
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
Application number
GB2712347A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hopkinsons Ltd
Original Assignee
Hopkinsons Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hopkinsons Ltd filed Critical Hopkinsons Ltd
Priority to GB2712347A priority Critical patent/GB628719A/en
Publication of GB628719A publication Critical patent/GB628719A/en
Expired legal-status Critical Current

Links

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

628,719. lndicating-apparatus. HOPKINSONS, Ltd., DALE, W. B., and BROWN, R. L. Oct. 9, 1947, No. 27123. [Class 106 (iv)] A liquid level indicator comprises a translucent screen a upon which the liquid level indications are made, a movable opaque shutter b passing through a gap c between translucent barriers d, e, of different colours, the shutter b pivoting about an axis lying in this gap between adjacent ends of the barriers d, e, and at its end remote from the screen a forming a movable division between electric lamps g, h, means i being provided for moving the shutter b about the axis as the liquid. level rises, so that the areas illuminated by the respective colours are varied accordingly.
GB2712347A 1947-10-09 1947-10-09 Improvements in liquid level indicators Expired GB628719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2712347A GB628719A (en) 1947-10-09 1947-10-09 Improvements in liquid level indicators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2712347A GB628719A (en) 1947-10-09 1947-10-09 Improvements in liquid level indicators

Publications (1)

Publication Number Publication Date
GB628719A true GB628719A (en) 1949-09-02

Family

ID=10254589

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2712347A Expired GB628719A (en) 1947-10-09 1947-10-09 Improvements in liquid level indicators

Country Status (1)

Country Link
GB (1) GB628719A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3439647A (en) * 1965-08-27 1969-04-22 Metrawatt Ag Indicating apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3439647A (en) * 1965-08-27 1969-04-22 Metrawatt Ag Indicating apparatus

Similar Documents

Publication Publication Date Title
AU476256B2 (en) Oilwell testing apparatus
ES421927A1 (en) 5 (6)-Benzene ring substituted benzimidazole-2-carbamate derivatives
CA1012209A (en) Tube inspection probe assembly
CA956285A (en) Uniformly illuminated meter indicator
CA972037A (en) Indicator light circuit
NL7505315A (en) SIGNAL SWITCHING EQUIPMENT.
GB628719A (en) Improvements in liquid level indicators
CA997423A (en) Air pollution measuring equipment
PH12320A (en) Dibenzo(b,d)pyranone dispersions
GB619842A (en) Improved means for showing the position of a rotary knob of an electric switch or other device
CA985375A (en) Switch closure device for meters
SE389914B (en) TEST TO TEST ON A PRESSURE CLEAR MOUNTED PRESSURE INDICATOR AND APPLIANCE FOR THE KIT PERFORMANCE
JPS51123095A (en) Direction indicating lamp returning device
CA1001195A (en) Circuit breaker with improved illuminated indicator
ES189501Y (en) PROJECTION APPARATUS WITH INCORPORATED SCREEN.
CH297205A (en) Telephone with illuminated rotary dial.
CA475820A (en) Illuminated dials
ZA731652B (en) Device for operating the fingertiptumbler type light switch
AT177186B (en) Composable illuminated electric signs
NL178523B (en) YARN CRUSHING EQUIPMENT.
CA460383A (en) Illuminated sign
ES24192Y (en) Switch with position indicator.
JPS51147362A (en) Display control system
JPS5215368A (en) Liquid crystal display
CA459812A (en) Indicating dial for photo electric light meters