US1974086A - Mount for electron discharge devices - Google Patents
Mount for electron discharge devices Download PDFInfo
- Publication number
- US1974086A US1974086A US709433A US70943334A US1974086A US 1974086 A US1974086 A US 1974086A US 709433 A US709433 A US 709433A US 70943334 A US70943334 A US 70943334A US 1974086 A US1974086 A US 1974086A
- Authority
- US
- United States
- Prior art keywords
- side rods
- slots
- mount
- spacer
- electron discharge
- 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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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
- H01J19/50—Spacing members extending to the envelope
- H01J19/52—Spacing members extending to the envelope without fixed connection between spacing member and envelope
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0002—Construction arrangements of electrode systems
- H01J2893/0005—Fixing of electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0002—Construction arrangements of electrode systems
- H01J2893/0005—Fixing of electrodes
- H01J2893/0009—Electrode system pressing against vessel wall
Definitions
- My invention relates to electron discharge de vices and more particularly to improved means for firmly and accurately'positioning the electrodes with respect to each other within the .5 envelope of the electron discharge device.
- threading operation usually requires nearly one half of the total time required to assemble the amount.
- the principal object of my invention is to provide improved means for firmly and accurately positioning the electrodes of an electron discharge device with respect to each other Within the envelope to facilitate assembly of the electrode mount, and for substantially eliminating the damage to the delicate parts of the mount which frequently attends assembly of mounts constructed in the usual way.
- Figure 1 is a View in perspective and partly broken away of an electron discharge device embodying one form of my invention.
- FIG 2 is an enlarged plan view of the mica spacer shown in Figure 1 and made in accordance with my invention.
- FIG 3 is an enlarged perspective view of a portion of the mount shown in Figure 1 and showing a pair of mica spacers used in accordance with my invention.
- the electron discharge device shown in Figure 1 has the usual base 10 on a dome type bulb 11 provided with the top cap 12 and the usual mount designated generally by 13. Extending from the top of the mount is the cathode sleeve 5 14, the side rods 15 of the various control grids (not shown) and the side rods 16 of the anode, one of the side rods 15, usually that of the control grid, being connected to the cap 12 at the top of the envelope 11.
- each spacer has two holes 22, into which the anode side rods 16 extend when the mica spacer is mounted on the anode, and also has along its flat edge a plurality of teeth 23 spaced to provide between them notches or slots into which the cathode 14 and side rods 15 fit rather snugly.
- the mount in the bulb resilient fingers 24 may be provided on the rim of the spacer to engage the inner wall of the dome of the bulb.
- the method of mounting and locking the mica spacers on the mount is best shown in Figure 3.
- the lower spacer 201s put on the plate side rods, which extend through the openings 22, and the cath ode sleeve and the various side rods slid sidewise into the slots between the teeth 23.
- the upper mica spacer 21 is then put in place on the anode side rods 16, with its toothed edge overlapping the toothed edge of the lower spacer 20, and with the teeth of the two spacers superposed, as shown in Figure 3.
- the two mica spacers are then locked in assembled position by welding the straps 19 to the anode side rods 16.
- Each spacer then acts as an insulating member for closing the ends of the slots in the other spacer to lock the electrodes in the slots.
- threading is eliminated and the cathode together with the anode and grid side rods are locked in the notches between the two overlapping spacers.
- the upper spacer 21 is shown as of the same shape as the lower spacer 20, it need not be provided with teeth or slots, but may have merely a straight edge overlapping the teeth on the lower mica, to close the end of the slots and so look the side rods in place.
- mica spacer made :in accordance with my invention is that it can be readily slipped into place intermediate the units of a multi unit tube to space the various electrodes, it being understood that slots would have to be provided for all of the side rods including those on the anode.
- An electron discharge device havingan envelope, a mount within said envelope andcomprising a plurality of electrodes having side rods, an insulating spacer having an. edge provided with a plurality of slots, said side rods being received in said slots to space said electrodes in fixed relation with respect to each other and an insulating member cooperating with said spacer for closing the ends of said slots to lock said side rods in said slots.
- An electron discharge device having an envelope, amount within said. envelope and com.-
- An electron discharge device having an envelope, a mount within saidenvclope comprising a'plurality of electrodes having side rods with their ends in alignment, a pair of substantially semi-circular insulating spacers mounted perpendicularly to said side rods and having slots along their straight edges for receiving the ends of said side rods within the slots, said spacers being positioned with respect to each other to form a substantially circular spacer having along a diameter apertures in which the siderods are locked in position.
- An electron discharge device having an envelope, a mount within said envelope comprising a plurality of electrodes having side rods with their ends in alignment, a flat semi-circular insulating spacer positioned on one side of, and perpendicular to, said side rods and provided with apertures in which the end side rods are received and a straight edge having slots in which the; remainder of the side rods are received, a second semi-circular fiat insulating spacer positioned on the other side of, and perpendicular to, said side rods above said first spacer and in contact therewith and having apertures in which the end side rods are received and a straight edge having slots in registry with the slots of said first spacer in which the remainder of the side rods are received said spacers being secured to said end side rods to lock the side rods between them in the slots, and resilient fingers on the rims of said semi-circular spacers to resiliently position the electrode'mount Within the envelope.
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
Description
Sept. 18, 1934. D, Y SMITH 1,974,086
I MOUNT FOB ELECTRON DISCHARGE DEVICES I Filed Feb. 2, 1934 G IIVVEWTO"? DOUGLAS Y. SMITH 6 v /remark Patented Sept. 18, 1934 PATENT OFFICE MOUNT FOR ELECTRON DISCHARGE DEVICES Douglas Y. Smith, East Orange, N. .L, assignor to Radio Corporation of America, a corporation of Delaware Application February 2, 1934, Serial No. 709,433
- Claims. (Cl. 25027.5)
My invention relates to electron discharge de vices and more particularly to improved means for firmly and accurately'positioning the electrodes with respect to each other within the .5 envelope of the electron discharge device.
' In modern tubes such as. a tube having the dome type bulb the electrodes of the mount are held in position by a mica spacer having small apertures through which the end of the cathode '10 and the ends of the side rods of the various electrodes extend to rigidly position the electrodes with respect to each other within the bulb. In assembling tubes the numerous side rods of the electrodes are manually threaded in- 1 to small holes in the mica spacer. When the number of side rods is large this threading is tedious and difficult, and the necessary fingering of the side rods in forcing them into the holes in the spacer frequently bends the elementsout of .29 shape and damages them. Furthermore, the
threading operation usually requires nearly one half of the total time required to assemble the amount.
The principal object of my invention is to provide improved means for firmly and accurately positioning the electrodes of an electron discharge device with respect to each other Within the envelope to facilitate assembly of the electrode mount, and for substantially eliminating the damage to the delicate parts of the mount which frequently attends assembly of mounts constructed in the usual way.
The novel features which I believe to be characteristic of my invention are set forth with .3 particularity in the appended claims but the invention itself will best be understood by reference to the following description taken in connection with the accompanying drawing in which:
Figure 1 is a View in perspective and partly broken away of an electron discharge device embodying one form of my invention.
Figure 2 is an enlarged plan view of the mica spacer shown in Figure 1 and made in accordance with my invention.
Figure 3 is an enlarged perspective view of a portion of the mount shown in Figure 1 and showing a pair of mica spacers used in accordance with my invention.
The electron discharge device shown in Figure 1 has the usual base 10 on a dome type bulb 11 provided with the top cap 12 and the usual mount designated generally by 13. Extending from the top of the mount is the cathode sleeve 5 14, the side rods 15 of the various control grids (not shown) and the side rods 16 of the anode, one of the side rods 15, usually that of the control grid, being connected to the cap 12 at the top of the envelope 11.
In accordance with my invention there is supported at the top of the anode and secured to the anode side rods 16 by metal straps 19 the mica spacers 20 and 21, shown in more detail in Figures 2 and 3, and preferably semi-circular, as shown in Figure 2. Each spacer has two holes 22, into which the anode side rods 16 extend when the mica spacer is mounted on the anode, and also has along its flat edge a plurality of teeth 23 spaced to provide between them notches or slots into which the cathode 14 and side rods 15 fit rather snugly. To firmly and resiliently center the mount in the bulb resilient fingers 24 may be provided on the rim of the spacer to engage the inner wall of the dome of the bulb.
The method of mounting and locking the mica spacers on the mount is best shown in Figure 3. In assembling the mount the lower spacer 201s put on the plate side rods, which extend through the openings 22, and the cath ode sleeve and the various side rods slid sidewise into the slots between the teeth 23. The upper mica spacer 21 is then put in place on the anode side rods 16, with its toothed edge overlapping the toothed edge of the lower spacer 20, and with the teeth of the two spacers superposed, as shown in Figure 3. The two mica spacers are then locked in assembled position by welding the straps 19 to the anode side rods 16. Each spacer then acts as an insulating member for closing the ends of the slots in the other spacer to lock the electrodes in the slots. In this way I obtain a firm and rigid assembly, threading is eliminated and the cathode together with the anode and grid side rods are locked in the notches between the two overlapping spacers. While the upper spacer 21 is shown as of the same shape as the lower spacer 20, it need not be provided with teeth or slots, but may have merely a straight edge overlapping the teeth on the lower mica, to close the end of the slots and so look the side rods in place.
Another advantage of a mica spacer made :in accordance with my invention is that it can be readily slipped into place intermediate the units of a multi unit tube to space the various electrodes, it being understood that slots would have to be provided for all of the side rods including those on the anode.
While I have indicated the preferred embodiments of my invention of which I am now aware and have also indicated only one specific application for which my invention may be employed, it will be apparent that my invention is by no means limited to the exact forms illustrated or the use indicated, but that many. variations may be made inthe particular structure used and the purpose for which it is employed without departing from the scope of my invention as set forth in the appended claims.
What I claim as new is:
1. An electron discharge device havingan envelope, a mount within said envelope andcomprising a plurality of electrodes having side rods, an insulating spacer having an. edge provided with a plurality of slots, said side rods being received in said slots to space said electrodes in fixed relation with respect to each other and an insulating member cooperating with said spacer for closing the ends of said slots to lock said side rods in said slots.
2. An electron discharge device having an envelope, amount within said. envelope and com.-
prising a plurality of electrodes having side rods, an insulating spacer having an edge provided with slots for receiving the ends of said side rods, a second insulating spacer having an edge provided with slots in registry with the slots in said first spacer, said spacers being positioned to lock said siderods between said spacers within said slots.
3.; An electron discharge device having an envelope, a mount within saidenvclope comprising a'plurality of electrodes having side rods with their ends in alignment, a pair of substantially semi-circular insulating spacers mounted perpendicularly to said side rods and having slots along their straight edges for receiving the ends of said side rods within the slots, said spacers being positioned with respect to each other to form a substantially circular spacer having along a diameter apertures in which the siderods are locked in position.
straight edge having slots in registry with the slots onsaid first spacer in which the rest of the side rods are received, said spacers being secured to said end side rods to lock the side rods in the slots between said spacers.
5. An electron discharge device having an envelope, a mount within said envelope comprising a plurality of electrodes having side rods with their ends in alignment, a flat semi-circular insulating spacer positioned on one side of, and perpendicular to, said side rods and provided with apertures in which the end side rods are received and a straight edge having slots in which the; remainder of the side rods are received, a second semi-circular fiat insulating spacer positioned on the other side of, and perpendicular to, said side rods above said first spacer and in contact therewith and having apertures in which the end side rods are received and a straight edge having slots in registry with the slots of said first spacer in which the remainder of the side rods are received said spacers being secured to said end side rods to lock the side rods between them in the slots, and resilient fingers on the rims of said semi-circular spacers to resiliently position the electrode'mount Within the envelope.
? DOUGLAS Y. SMITH.
' ito iss
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US709433A US1974086A (en) | 1934-02-02 | 1934-02-02 | Mount for electron discharge devices |
CH181907D CH181907A (en) | 1934-02-02 | 1935-01-25 | Electric discharge tube. |
AT143776D AT143776B (en) | 1934-02-02 | 1935-01-29 | Electric discharge tube. |
DK54415D DK54415C (en) | 1934-02-02 | 1935-01-31 | Electric Discharge Pipe. |
DER92518D DE638277C (en) | 1934-02-02 | 1935-02-02 | Electrode holder for electron tubes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US709433A US1974086A (en) | 1934-02-02 | 1934-02-02 | Mount for electron discharge devices |
Publications (1)
Publication Number | Publication Date |
---|---|
US1974086A true US1974086A (en) | 1934-09-18 |
Family
ID=24849830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US709433A Expired - Lifetime US1974086A (en) | 1934-02-02 | 1934-02-02 | Mount for electron discharge devices |
Country Status (5)
Country | Link |
---|---|
US (1) | US1974086A (en) |
AT (1) | AT143776B (en) |
CH (1) | CH181907A (en) |
DE (1) | DE638277C (en) |
DK (1) | DK54415C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2494853A (en) * | 1947-08-27 | 1950-01-17 | Hartford Nat Bank & Trust Co | Resilient support and centering arrangement for the electrodes of electric discharge tubes |
DE848674C (en) * | 1947-10-28 | 1952-09-08 | Philips Nv | Electric discharge tubes |
US2777082A (en) * | 1953-08-27 | 1957-01-08 | Westinghouse Electric Corp | Incandescent lamp |
US2835843A (en) * | 1955-07-26 | 1958-05-20 | Gen Electric | Tube mount support |
US2862134A (en) * | 1954-10-22 | 1958-11-25 | Westinghouse Electric Corp | Electron discharge device |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE744013C (en) * | 1938-12-08 | 1944-01-07 | Siemens Ag | Device for supporting the electrode system of an electron tube against the tube piston |
DE745632C (en) * | 1939-03-11 | 1944-03-24 | Siemens Ag | Arrangement for supporting the electrode system of an electron tube |
DE1031896B (en) * | 1956-06-25 | 1958-06-12 | Gen Electric | Electrode structure for a multiple tube system |
DE1134166B (en) * | 1959-03-25 | 1962-08-02 | Ass Elect Ind | Attachment of the holding rods of the electrodes of an electron tube lying in one plane |
-
1934
- 1934-02-02 US US709433A patent/US1974086A/en not_active Expired - Lifetime
-
1935
- 1935-01-25 CH CH181907D patent/CH181907A/en unknown
- 1935-01-29 AT AT143776D patent/AT143776B/en active
- 1935-01-31 DK DK54415D patent/DK54415C/en active
- 1935-02-02 DE DER92518D patent/DE638277C/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2494853A (en) * | 1947-08-27 | 1950-01-17 | Hartford Nat Bank & Trust Co | Resilient support and centering arrangement for the electrodes of electric discharge tubes |
DE848674C (en) * | 1947-10-28 | 1952-09-08 | Philips Nv | Electric discharge tubes |
US2777082A (en) * | 1953-08-27 | 1957-01-08 | Westinghouse Electric Corp | Incandescent lamp |
US2862134A (en) * | 1954-10-22 | 1958-11-25 | Westinghouse Electric Corp | Electron discharge device |
US2835843A (en) * | 1955-07-26 | 1958-05-20 | Gen Electric | Tube mount support |
Also Published As
Publication number | Publication date |
---|---|
AT143776B (en) | 1935-11-25 |
DE638277C (en) | 1936-11-12 |
CH181907A (en) | 1936-01-15 |
DK54415C (en) | 1938-03-07 |
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