US700708A - Coherer. - Google Patents
Coherer. Download PDFInfo
- Publication number
- US700708A US700708A US78872A US1901078872A US700708A US 700708 A US700708 A US 700708A US 78872 A US78872 A US 78872A US 1901078872 A US1901078872 A US 1901078872A US 700708 A US700708 A US 700708A
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- US
- United States
- Prior art keywords
- coherer
- carbon
- wires
- plugs
- particles
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
Definitions
- My invention relates to improvements in coherers for wireless-telegraph systems.
- the main object of the invention is the provision of a coherer which dispenses with a decoherer and has the power of self-restoration.
- my invention consists of a coherer embodying novel features of construction and arrangement of parts substantially as disclosed herein.
- Figure 1 is a side elevation of the coherer embodying my invention
- Fig. 2 is a sectional view of a modified form.
- the numeral 1 designates the coherer-tube, which is made of non-conducting material, such as glass, and has mounted therein carbon or silver plugs 2, whose ends are parallel with each other and form a straight-walled pocket 3 to receive the granulated particles l of carbon and the steel balls 5.
- carbon or silver plugs 2 whose ends are parallel with each other and form a straight-walled pocket 3 to receive the granulated particles l of carbon and the steel balls 5.
- the wires 6 and 7 Adapted to enter the tube from each end and be connected to the plugs 2 are the wires 6 and 7, which are generally connected to the airand ground wires of a system.
- a coherer consisting of a non-conducting surrounding, wires passing therein from opposite ends, plugs connected to said wires and incased by the surrounding, and particles of carbon and a series of steel balls located in the space between the plugs.
- a coherer consisting of a non-conducting surrounding, conducting-wires entering therein, plugs mounted therein and connected to said wires and forming a pocket therebetween, and particles of granulated carbon and steel balls located in said pocket.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Scissors And Nippers (AREA)
Description
No. 700,708. Patented May 20, I902. H. SHOEMAKER.
00 H E R E R.
{Application filed Oct. 16, 1901.
(No Model.)
114: norms PETERS co. PHOTO-LITNO. WASMNGTON n n UNITED STATES PATENT OFFICE.
HARRY SHOEMAKER, OF PHILADELPHIA, PENNSYLVANIA.
COHERER.
SPECIFICATION forming part of Letters Patent No. 700,708, dated May 20, 1902. Original application filed February 12, 1901, Serial No. 46,985. Divided and this application filed October 16, 1901. Serial To all whom it may concern.-
Be it known that I, HARRY SHOEMAKER, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Ooherers, of which the following is a specification.
My invention relates to improvements in coherers for wireless-telegraph systems.
The main object of the invention is the provision of a coherer which dispenses with a decoherer and has the power of self-restoration.
To attain the desired objects, my invention consists of a coherer embodying novel features of construction and arrangement of parts substantially as disclosed herein.
I would also state that this application is a divisional application, having originally been a part of my application filed February 12, 1901, Serial No. 46,985.
In the drawings, Figure 1 is a side elevation of the coherer embodying my invention, and Fig. 2 is a sectional view of a modified form.
Referring by numeral to the drawings, the numeral 1 designates the coherer-tube, which is made of non-conducting material, such as glass, and has mounted therein carbon or silver plugs 2, whose ends are parallel with each other and form a straight-walled pocket 3 to receive the granulated particles l of carbon and the steel balls 5. By the employment of the carbon particles and the steel balls no decoherer is necessary, as the carbon and steel contacts have the property of restoring themselves withont the use of a tapping or shaking (No model.)
device, as is the common and general practice. These steel balls must be placed so as not to contact each other, but to contact the carbon particles, this being done by making the balls stationary and allowing the carbon to be loose.
In the modified form I use the plate 8 to support the balls and keep them apart.
Adapted to enter the tube from each end and be connected to the plugs 2 are the wires 6 and 7, which are generally connected to the airand ground wires of a system.
It is evident that I provide a very simple coherer which dispenses with the decohering device so common and generally used, as I employ devices which have the power of selfrestoration.
What I claim as new, and desire to secure by Letters Patent, is- I 1. A coherer consisting of a non-conducting surrounding, wires passing therein from opposite ends, plugs connected to said wires and incased by the surrounding, and particles of carbon and a series of steel balls located in the space between the plugs.
2. A coherer consisting of a non-conducting surrounding, conducting-wires entering therein, plugs mounted therein and connected to said wires and forming a pocket therebetween, and particles of granulated carbon and steel balls located in said pocket.
In testimony whereof I affix my signature in presence of two witnesses.
HARRY SI-IOEMAKER.
Witnesses:
E. B. HUME, R. LEAMAN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US78872A US700708A (en) | 1901-02-12 | 1901-10-16 | Coherer. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4698501A US703712A (en) | 1901-02-12 | 1901-02-12 | Wireless telegraphy. |
US78872A US700708A (en) | 1901-02-12 | 1901-10-16 | Coherer. |
Publications (1)
Publication Number | Publication Date |
---|---|
US700708A true US700708A (en) | 1902-05-20 |
Family
ID=2769239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US78872A Expired - Lifetime US700708A (en) | 1901-02-12 | 1901-10-16 | Coherer. |
Country Status (1)
Country | Link |
---|---|
US (1) | US700708A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2519449A (en) * | 1949-06-04 | 1950-08-22 | Eaton Mfg Co | Magnetic drive |
-
1901
- 1901-10-16 US US78872A patent/US700708A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2519449A (en) * | 1949-06-04 | 1950-08-22 | Eaton Mfg Co | Magnetic drive |
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