US1003374A - Wave-detector for wireless telegraphy. - Google Patents

Wave-detector for wireless telegraphy. Download PDF

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Publication number
US1003374A
US1003374A US513352A US1909513352A US1003374A US 1003374 A US1003374 A US 1003374A US 513352 A US513352 A US 513352A US 1909513352 A US1909513352 A US 1909513352A US 1003374 A US1003374 A US 1003374A
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United States
Prior art keywords
detector
wave
wireless telegraphy
contact
application
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 - Lifetime
Application number
US513352A
Inventor
Wilhelm Schloemilch
Paul Fernand Pichon
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.)
Telefunken AG
Original Assignee
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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Publication date
Priority claimed from US31167806A external-priority patent/US962262A/en
Application filed by Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
Priority to US513352A priority Critical patent/US1003374A/en
Application granted granted Critical
Publication of US1003374A publication Critical patent/US1003374A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10DINORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D99/00Subject matter not provided for in other groups of this subclass

Definitions

  • Our present invention is Aa divisional application of our application Serial No. 311,678, filed April 14, 1906, which relates to wave detectors in which the ⁇ Contact of twosubstances under suitable pressure is influenced by electric waves and in which the action of the substances is of a thermoelect-ric or rectifylng character, and which action does not dependupon an auxiliary electromotive force or potential.
  • the substances mentioned in this application as suitable for the purpose described in 'com- ⁇ bination with a non-oxidizable or diflicultly oXidizable substance, is copper pyrite,which forms theY subject matter of our present application. This material may befemploy'ed Vfor either both contacts or only one.
  • one of the contact bodies of a good conducting material, preferably of a material which doesv not oxidize or only oxidizes with y ⁇ :litficulty,'for instance, platinum, gold, silyer, aluminium, operate to the best advantage and without an 'auxiliary electromotive force in theeircuit in which the detector is located.
  • a good conducting material preferably of a material which doesv not oxidize or only oxidizes with y ⁇ :litficulty,'for instance, platinum, gold, silyer, aluminium, operate to the best advantage and without an 'auxiliary electromotive force in theeircuit in which the detector is located.
  • tin 2 which is surrounded with a brass sheath or socket 3.
  • a platinum pin 5 soldered to a screw 4, with suitable pressure.
  • r he screw is ar4 ranged in a vulcanite plugl which in turn is displaceably held by means of screw thread in the brass sheath or socket 3.
  • a metal plate ⁇ 7 is attached by means of screws Serial No. 53,352.
  • a wave detector for wireless telegraphy which is formed of copper pyrites and the,V other of platinum, said contacts touching each other with a predetermined pressure, and operating without the aid of an auX- iliary electromotive force. 4

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  • Measuring Fluid Pressure (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Description

W. ASCHLOEMILGH & P. F. PICHON. WAVE DETECTOR FOB. WIRELESS TELEGRAPEY.
APPLIGATION FILED AUG. 17, 1909.
v 1,003,374.- Patented sept.12,191`1 onion.
WILHELM SGHLOEMILGH, oF lBERLIN, AND lPAUL FERNAND rio'HoN, or s'rnsLrrz, NEAR BnnLIN,`en1 .MANY, AssIGfNon-s l'ro GESELLSCHAFT EUR DRAHTLOSE TELE- GRAPHIE M. IB..H., OF BERLIN, GERMANY, .A CORPORATION OF GERMANY.
WAVE-DETECTOR FOR WIRELESS TELEGRAPHY.
Specification of Letters Patent. Patented Sept. 12, 1911.
Original application led April 14, 1906, Serial No. 311,678. Divided and this application filed August 17,
To all whom it 'may concern:
Be it known that We, lVinnuLar'Sci-ILOE- Mincir, a subject of the King of Prussia, residing at Berlin, Germany, and PAUL FERNAND PICHON, a citizen of the Republic of France, residing at Steglitz, near Berlin, Germany, have invented certain new and useful Improvements in VVave-Detectors.
for Wireless Telegraphy, of which the following is a full, clear, and exact description, illustrated by the accompanying drawings.
Our present invention is Aa divisional application of our application Serial No. 311,678, filed April 14, 1906, which relates to wave detectors in which the `Contact of twosubstances under suitable pressure is influenced by electric waves and in which the action of the substances is of a thermoelect-ric or rectifylng character, and which action does not dependupon an auxiliary electromotive force or potential. Among the substances mentioned in this application as suitable for the purpose described in 'com-` bination with a non-oxidizable or diflicultly oXidizable substance, is copper pyrite,which forms theY subject matter of our present application. This material may befemploy'ed Vfor either both contacts or only one. It is, however, preferable to form one of the contact bodies of a good conducting material, preferably of a material which doesv not oxidize or only oxidizes with y `:litficulty,'for instance, platinum, gold, silyer, aluminium, operate to the best advantage and without an 'auxiliary electromotive force in theeircuit in which the detector is located.
In the accompanying drawings we have illustrated diagrammatically, as an example, a'manner iny which-the two contact substances may be arranged. In this diagram,
l indicates a piece of copper pyrite, which.
is preferably embedded in tin 2 which is surrounded with a brass sheath or socket 3. Against the upper surface of the pyrite bears a platinum pin 5, soldered to a screw 4, with suitable pressure. r he screw is ar4 ranged in a vulcanite plugl which in turn is displaceably held by means of screw thread in the brass sheath or socket 3. On the upper end of the vulcanite plug 6 a metal plate `7 is attached by means of screws Serial No. 53,352.
and a short conductor 8jestablishes an electric connection between the screw 4 and the metal plate 7.y The connection of this detector and the contact members l and 5 respectively of the same with the circuits for the wireless telegraphy takes place by means of the brass socket or sheath 3 on the one hand and the metal plate 7 on the Vother. The form and size of the contact surfaces of both bodies according to the choice-ofthe same has also been found to be of importance for obtaining favorable action as has been already mentioned in our aforesaid ap-A plication. It is preferable for instance, as has also been stated in said application, to cause the pressure contact to act with a point upon a polished surface of the wave sensitive substance. Since now copper py.- rite possesses naturally polished surfaces in the form of crystallihic surfaces, we prefer to have the contact point act upon one of these crystallinic surfaces of the pyrite. In this case only a comparatively small pressure between the contact elements may be used. If, however, the contact elements are touching each other with a larger surface asuitably higher pressure is necessary.
What we claim is:
`1. A wave detector for wireless telegraphy which is formed of copper pyrites and the,V other of platinum, said contacts touching each other with a predetermined pressure, and operating without the aid of an auX- iliary electromotive force. 4
In witness whereof we hereunto subscribe our names this 30th day of July A. D. 1909.
' VILHELM SCHLOEMILCH.
PAUL FERNAND PICHON. lVitnesses l HENRY HAsrER,
ARTHUR SCHROEDER.
US513352A 1906-04-14 1909-08-17 Wave-detector for wireless telegraphy. Expired - Lifetime US1003374A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US513352A US1003374A (en) 1906-04-14 1909-08-17 Wave-detector for wireless telegraphy.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31167806A US962262A (en) 1906-04-14 1906-04-14 Wave-detector for wireless telegraphy.
US513352A US1003374A (en) 1906-04-14 1909-08-17 Wave-detector for wireless telegraphy.

Publications (1)

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US1003374A true US1003374A (en) 1911-09-12

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