GB203517A - Improvements in and relating to receiving apparatus for wireless signalling - Google Patents

Improvements in and relating to receiving apparatus for wireless signalling

Info

Publication number
GB203517A
GB203517A GB2412222A GB2412222A GB203517A GB 203517 A GB203517 A GB 203517A GB 2412222 A GB2412222 A GB 2412222A GB 2412222 A GB2412222 A GB 2412222A GB 203517 A GB203517 A GB 203517A
Authority
GB
United Kingdom
Prior art keywords
tube
crystals
heads
pressed
relating
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
GB2412222A
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.)
HERBERT PERCY POWELL REES
Original Assignee
HERBERT PERCY POWELL REES
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 HERBERT PERCY POWELL REES filed Critical HERBERT PERCY POWELL REES
Priority to GB2412222A priority Critical patent/GB203517A/en
Publication of GB203517A publication Critical patent/GB203517A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Ceramic Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

203,517. Rees, H. P. P., (known as Rees, H. P.). June 1, 1923. Crystal detectors of cartridge type comprise two crystals arranged loosely in a tube of glass &c. and adapted to be pressed into engagement by two axially movable conducting heads one of which is spring pressed. Preferably the top of one of the standards supporting the cartridge is removable. As shown, Fig. 3, crystals a, b in a tube p are adjustably pressed into contact by heads c, d, which fit the tube p so as to prevent dust reaching the crystals. The upper portion g of one of the supports is fixed to the lower part q by means of a screw s as shown in Fig. 2, so as to allow of removal of the tube p. The heads c, d are scored as shown to prevent the crystals from slipping.
GB2412222A 1923-06-01 1923-06-01 Improvements in and relating to receiving apparatus for wireless signalling Expired GB203517A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2412222A GB203517A (en) 1923-06-01 1923-06-01 Improvements in and relating to receiving apparatus for wireless signalling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2412222A GB203517A (en) 1923-06-01 1923-06-01 Improvements in and relating to receiving apparatus for wireless signalling

Publications (1)

Publication Number Publication Date
GB203517A true GB203517A (en) 1923-09-13

Family

ID=10206730

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2412222A Expired GB203517A (en) 1923-06-01 1923-06-01 Improvements in and relating to receiving apparatus for wireless signalling

Country Status (1)

Country Link
GB (1) GB203517A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5403485A (en) * 1992-05-20 1995-04-04 Akzo N.V. Dialysis membrane made of cellulose acetate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5403485A (en) * 1992-05-20 1995-04-04 Akzo N.V. Dialysis membrane made of cellulose acetate

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