US1657208A - Vacuum tube - Google Patents
Vacuum tube Download PDFInfo
- Publication number
- US1657208A US1657208A US17508A US1750825A US1657208A US 1657208 A US1657208 A US 1657208A US 17508 A US17508 A US 17508A US 1750825 A US1750825 A US 1750825A US 1657208 A US1657208 A US 1657208A
- Authority
- US
- United States
- Prior art keywords
- wire
- contact
- vacuum tube
- prongs
- prong
- 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
Links
- 229910000679 solder Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 1
- 210000001699 lower leg Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/36—Joining connectors to internal electrode system
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/49147—Assembling terminal to base
- Y10T29/49151—Assembling terminal to base by deforming or shaping
- Y10T29/49153—Assembling terminal to base by deforming or shaping with shaping or forcing terminal into base aperture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49925—Inward deformation of aperture or hollow body wall
- Y10T29/49927—Hollow body is axially joined cup or tube
- Y10T29/49929—Joined to rod
Definitions
- This invention relates to vacuum tubes, particularly oi the three electrode type for use as rectifiers, amplifiers and electric wave generators.
- the object of the invention is to perfect the construction of the ends of the wires leading to the various elements of such a device, whereby poor contacts are entirely eliminated, and whereby the contact between the wires leading from the elements and the prongs in the base, is made perfect Without the use of solder or other oxidizable material.
- FIG. 1 is a perspective view of a vacuum tube constructed in accordance with my invention.
- Figs. 2, 3 and 4 are enlarged sectional views showing the. three steps of operation in my improved process.
- Fig. 5 1s a bottom plan view of the prong contact shown in 'Fi 4.
- each prong is provided with a hole 4 centrally therethrough for receiving a lead-in wire 5 as hereinafter described.
- the wires are first threaded through the holes 4 of the prongs in the manner illustrated in Fig. 2..
- the outer end portions 6 of the prongs are then upset in a power press to crush the same into firm contact with the wires as illustrated in Fig. 3.
- the end portion 7 of the wire is then severed and the end of the prong and wire is finished off to form a smooth contact as illustrated in Figs. 4. and 5.
- a vacuum tube the combination of a base, a plurality of tubular prongs there on formin sockets, an wires leading to the electrodes, each wire extending through a tubular prong, and said prong being crushed into thewire in a manner to form a tight joint.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Description
Jan. 24, 1928..
V. F. GREAVES VACUUM TUBE Filed March 23. 1925 In v'entor. V $7 $7 6M.
(HZ/$01 ys.
Patented Jan. 24, 1928.
{UNITED STATES PATENT oFiucEJ' VALENTINE FORD GREAVES, OF OAKLAND, CALIFORNIA, ASSIGNOR TO THE MAGNA- VOX COMPANY, OF SAN FRANCISCO, CALIFORNIA, A CORPORATION OF ARIZONA.
VACUUM TUBE.
Application filed-March 23, 1925. Serial No. 17,508.
This invention relates to vacuum tubes, particularly oi the three electrode type for use as rectifiers, amplifiers and electric wave generators. The object of the invention is to perfect the construction of the ends of the wires leading to the various elements of such a device, whereby poor contacts are entirely eliminated, and whereby the contact between the wires leading from the elements and the prongs in the base, is made perfect Without the use of solder or other oxidizable material.
It is well known that a contact between solder and other metals such as is usually employedin the sockets of receiving sets which is maintained by pressure only, is not satisfactory or dependable from the electrical point of view, because of the heavy coat of insulating oxide which rapidly formson lead, solder, etc.
In case of difficulty or trouble with radio receivers using vacuum tubes, it has been customary in an eifort to locate the difiiculty, to remove the tube and clean the solder contacts. It is safe to say that most of the diflicult with inoperative or defective vacuum tu e receivers, has been due to poor contacts between solder base prongs and spring sockets.
In the present invention I make a cold weld between the lead wires and the base prongs, therebv entirely eliminating any solder and at the same time make the contact between the wire and the prong even more effective than soldering or riveting.
In the accompan ing drawing I have illustrated one speci c embodiment of my invention, but it will be understood that the invention can be otherwise embodied and that the drawing is not to be construed as definin or limiting the S00 e of the invention, the c aims appended to t e specification bein relied upon for that purpose.
' Iteferring to the figures of the drawing Fig. 1 is a perspective view of a vacuum tube constructed in accordance with my invention.
Figs. 2, 3 and 4 are enlarged sectional views showing the. three steps of operation in my improved process.
Fig. 5 1s a bottom plan view of the prong contact shown in 'Fi 4.
Inthe drawing, dicates the bulb, 2
the base and 3 the contact prongs of a radio vacuum tube. These prongs are secured to the base in the manner shown in Figs. 2, 3 and 4. Each prong is provided with a hole 4 centrally therethrough for receiving a lead-in wire 5 as hereinafter described.
In my improved process, the wires are first threaded through the holes 4 of the prongs in the manner illustrated in Fig. 2..
The outer end portions 6 of the prongs are then upset in a power press to crush the same into firm contact with the wires as illustrated in Fig. 3. The end portion 7 of the wire is then severed and the end of the prong and wire is finished off to form a smooth contact as illustrated in Figs. 4. and 5.
It is believed that the advantages of-my improvement will be obvious without further description. The upsetting pressure on the prongs is so great that in etfect a cold weld is formed between the prong and wire. Furthermore, the Wire extends entirely to the end of the prong whereby contact is formed directly with the end of the wire at 8, thus an excellent contact is assured under practically all conditions and over long periods of time without the necessity of cleaning. Also in addition to eliminating all solder and making a better contact, manufacturing costs with this process are reduced toa very great extent.
Having thus described my invention, what I claim and desire to secure by Letters Patent is:
1. The process of forming improved contacts for radio vacuum tubes which consists of threading each lead-in wire through a hole in a base prong, severing the wire at the end of the pron and forming a joint therebetween by crus ing the outer end portion of each Erong into close contact with its wire, and nishing off the outer ends of the prongs and wires to form a smooth contact. A
2. In a vacuum tube, the combination of a base, a plurality of tubular prongs there on formin sockets, an wires leading to the electrodes, each wire extending through a tubular prong, and said prong being crushed into thewire in a manner to form a tight joint.
VALENTINE FORD GREAVES.
terminals for connectlon with
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17508A US1657208A (en) | 1925-03-23 | 1925-03-23 | Vacuum tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17508A US1657208A (en) | 1925-03-23 | 1925-03-23 | Vacuum tube |
Publications (1)
Publication Number | Publication Date |
---|---|
US1657208A true US1657208A (en) | 1928-01-24 |
Family
ID=21782975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17508A Expired - Lifetime US1657208A (en) | 1925-03-23 | 1925-03-23 | Vacuum tube |
Country Status (1)
Country | Link |
---|---|
US (1) | US1657208A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2425113A (en) * | 1942-06-24 | 1947-08-05 | Gorton George Machine Co | Production of electric arc etching electrodes |
US2456118A (en) * | 1943-05-14 | 1948-12-14 | Thomas Hawkinson | Terminal member |
US2477372A (en) * | 1945-01-24 | 1949-07-26 | Herzog Carl | Electric gaseous discharge lamp |
US2522408A (en) * | 1949-10-25 | 1950-09-12 | Gen Electric Co Ltd | Cold pressure welding |
US2551376A (en) * | 1945-06-13 | 1951-05-01 | Western Electric Co | Method of and apparatus for forming and affixing electrical terminals |
US2600012A (en) * | 1946-06-27 | 1952-06-10 | Aircraft Marine Prod Inc | Electrical connector |
US2736873A (en) * | 1951-12-01 | 1956-02-28 | Gen Electric | Lamp base connection and method of manufacture |
US2841690A (en) * | 1954-12-28 | 1958-07-01 | Gen Electric | Contact pin and method for fluorescent lamps |
US2859511A (en) * | 1953-07-08 | 1958-11-11 | Int Register Co | Process of staking a post to a mounting |
US3505556A (en) * | 1966-07-08 | 1970-04-07 | Donald J Belknap | Cylindrical miniature incandescent lamps and methods of making the same |
US5129849A (en) * | 1985-12-19 | 1992-07-14 | Gte Products Corporation | Reflector and eyelet construction for reflector-type lamps |
-
1925
- 1925-03-23 US US17508A patent/US1657208A/en not_active Expired - Lifetime
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2425113A (en) * | 1942-06-24 | 1947-08-05 | Gorton George Machine Co | Production of electric arc etching electrodes |
US2456118A (en) * | 1943-05-14 | 1948-12-14 | Thomas Hawkinson | Terminal member |
US2477372A (en) * | 1945-01-24 | 1949-07-26 | Herzog Carl | Electric gaseous discharge lamp |
US2551376A (en) * | 1945-06-13 | 1951-05-01 | Western Electric Co | Method of and apparatus for forming and affixing electrical terminals |
US2600012A (en) * | 1946-06-27 | 1952-06-10 | Aircraft Marine Prod Inc | Electrical connector |
US2522408A (en) * | 1949-10-25 | 1950-09-12 | Gen Electric Co Ltd | Cold pressure welding |
US2736873A (en) * | 1951-12-01 | 1956-02-28 | Gen Electric | Lamp base connection and method of manufacture |
US2859511A (en) * | 1953-07-08 | 1958-11-11 | Int Register Co | Process of staking a post to a mounting |
US2841690A (en) * | 1954-12-28 | 1958-07-01 | Gen Electric | Contact pin and method for fluorescent lamps |
US3505556A (en) * | 1966-07-08 | 1970-04-07 | Donald J Belknap | Cylindrical miniature incandescent lamps and methods of making the same |
US5129849A (en) * | 1985-12-19 | 1992-07-14 | Gte Products Corporation | Reflector and eyelet construction for reflector-type lamps |
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