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
GB1078/27A
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.)
CARL NEHRKE
Original Assignee
CARL NEHRKE
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 CARL NEHRKEfiledCriticalCARL NEHRKE
Publication of GB271004ApublicationCriticalpatent/GB271004A/en
H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
H03J1/02—Indicating arrangements
H03J1/04—Indicating arrangements with optical indicating means
H03J1/042—Means insuring a precise reading of the dial, e.g. special scale, local illumination possibly temporary, luminous point moving with the pointer
Abstract
271,004. Nehrke, C. June 27, 1926. [Convention date]. Wireless tuning-apparatus, indicating devices for. - A radio scale and housing with vernier adjustment has a source of light j located beneath a circular slot l in the dial-plate c which is covered by a strip m of black paper, celluloid &c., the arrangement being such that when a station is tuned in it may be readily refound by piercing the black paper &c. in register with an aperture in the cover-plate lid b. A switch h is provided for the bulb j. The vernier adjustment d carried by the cover-plate a may comprise toothed or friction gearing. The strip m may be exchanged for others to give a wider range of tuning. The dial-plate is provided with an aperture through which the bulb j may be withdrawn.
GB1078/27A1926-06-271927-01-13Improvements in or relating to scales for radio vernier control apparatus
ExpiredGB271004A
(en)
Detachable indicator elements that can be coupled to scales indicating radio characteristics (Machine-translation by Google Translate, not legally binding)