US2625582A - Tube socket - Google Patents

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Publication number
US2625582A
US2625582A US639613A US63961346A US2625582A US 2625582 A US2625582 A US 2625582A US 639613 A US639613 A US 639613A US 63961346 A US63961346 A US 63961346A US 2625582 A US2625582 A US 2625582A
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United States
Prior art keywords
condenser
base
contact
pin
socket
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Expired - Lifetime
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US639613A
Inventor
Jerome D Heibel
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Erie Resistor Corp
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Erie Resistor Corp
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Publication date
Application filed by Erie Resistor Corp filed Critical Erie Resistor Corp
Priority to US639613A priority Critical patent/US2625582A/en
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Publication of US2625582A publication Critical patent/US2625582A/en
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Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/74—Devices having four or more poles, e.g. holders for compact fluorescent lamps
    • H01R33/76—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket
    • H01R33/7607—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket the parallel terminal pins having a circular disposition
    • H01R33/7614—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket the parallel terminal pins having a circular disposition the terminals being connected to individual wires
    • H01R33/7628—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket the parallel terminal pins having a circular disposition the terminals being connected to individual wires the wires being connected using solder

Definitions

  • Cla-ims. (Cl.'175--41) This invention is intended to simplify the connection of condensers to vacuum tube elements by using tubular condensers in the tube socket around the socket terminals.
  • Fig. 2V is a sectional view on line 2-2 of 1
  • Fig. 3 is a sectional view through one of the tubular condensers
  • Fig. 4 is a sectional view through one of the socket terminale
  • Fig. 5 is a top plan view, partly broken away, of a. modification in which the condensers are connected to the center ground Shield
  • Fig. 6 is a section on line E-E of Fig. 5
  • Pig. 7 is a fragmentary section of a modification in which the tubularicondensers and contacts are inserted from the bottom of the socket
  • Pig. 8 is a fragmentary section of another modification in which the condenser is connected to contactother 'than ground.
  • l indicates a mounting plate socket.
  • the vwell has indentations 5 which fit into complementary recesses in a mounting flange on the base and hold the base against rotation.
  • the base is held in the well by a plate 'l of the same general Shape as the mounting plate projecting inwardly over the top of the mounting flange 5.
  • the plates are secured together by tabs 8 on the plate 1 which are bent over the mounting plate.
  • On the top of the base is a disc 9 of insulating material having holes it' for receiving the base pins of a Vacuum tube.
  • i i At the center of the base is a non-circular opening i i receiving the aligning plug of the Vacuum tube.
  • a center ground shield 12a having lips ⁇ 2 sp'un over the upper surface of the disc to hold it in place, and a lip
  • the center ground shield is provided with spring fingers E5 for looking the tube in the socket and with a ground terminal 16.
  • base pins of the vacuum tube are connected to conden ers and it is important that the condenser leads be kept short.
  • base pins there are provided enlarged recesses 2B receiving a tubular Ceramic condenser 2
  • the terminals are preferably made, as shown in 4, of sheet metal with a spring finger 25 in the part forming substantially a direct continuation of the strip 18 and with a spring finger Zl on each side which are folded toward each other to provide a roughly triangular opening for receivin'g the base pin.
  • a spring finger 25 in the part forming substantially a direct continuation of the strip 18 and with a spring finger Zl on each side which are folded toward each other to provide a roughly triangular opening for receivin'g the base pin.
  • Below the fingers 25 and 21 are separate spring fingers 28 and a projection '29 which make contact with the inner metal coating 22 of the condenser.
  • the separate spring fingers 28 can be proportioned to provide the proper contact pressure to the inner condenser electrode 22 and this contact pressure exerted by the fingers 23 will not be increased by the outward movement of the fingers El' such as would be produced by the insertion of the vacuum tube base pin thercbetween. This eliminates the danger of cracking the condenser elements.
  • Thebase may be constructed so that the condensers may be connected between each of the pin recei'v'ing terminals and the mounting plate which will usually be grounded.
  • the length of the condenser leads is obviously kept to a minimum since it consists of the spring contacts between the inner and outer condenser coatings.
  • Fig. 5 and Fig. 6 is shown a modification in which the condensers are connected between the pin terminale and the center ground shield.
  • the base 4 is mounted in the well 2 of the mounting plate I and the mounting fiange 6 rests on the inwardly extending fiange 3 at the lower end of the well.
  • the base is held in the well by lips 3G on the mounting plate which are spun over the upper edge of the mounting flange.
  • the disc 9 with the pin receivng holes IO is held in place by spun .receiving openings 39.
  • the pin receiving terminals and condensers are assembled from the top and the assembly is completed by fastening the disc 9 in place.
  • Fig. 7 is indicated an alternative construction in which the condensers and terminals are inserted from the bottom.
  • the base 31 has a top wall 38 provided with pin Directly below the openings 39 are enlarged recesses LH) receiving the tubular ceramic condenser 2
  • the recesses iii) are open at the bottom and are closed by a disc 4
  • the contact with the outer condenser coating 23 is made by a contact ring 45 similar to the contact ring 3
  • Fig. 8 is shown a modification of the Fig. 6 construction in which the'base has one or more slots 48 receiving contacts 49 engaging the outer metallic surface 23 of the condenser 2
  • the contact has a spring finger 59 engaging a shoulder at the bottom of the condenser receiving recesses.
  • the contact also has a yieldable projection 52 making a tight fit between the contact and slot.
  • the contact 49 is useful in connecting the tube element to another circuit element.
  • a tube socket of the type having, a base, pin receiving recesses, a tubular condenser in one of the recesses and having inner and outer electrode contact surfaces, a pin-engaging terminal Within and contacting the inner surface of the condenser, an opening in the base providing access to the outer surface of the condenser. a center ground shield, and a connection from the shield engaging the outer surface of the condenser through said opening.
  • a tube socket of the type having, a base, pin receiving recesses, a tubular condenser in one of the recesses and having inner and outer electrode contact surfaces, and a pin engaging terminal within and contacting the inner surface of the condenser, the combination of a longitudinal slot in the base open at at least one end and intersecting and extending along the recess to provide access to the outer surface of the condenser, and a contact having a part in said slot engaging the outer surface of the condenser and a part Vextending out of the open end of said slot for connection to another circuit element.
  • a tube socket of the type having, a base having circularly spaced pin receiving recesses having elements therein with parts making contact with inserted pins, the combination of a contact ring having spring fingers opposite and extending longitudinally of the recesses and of the axis of the ring, and longitudinal notches in the base receiving and locating the spring fingers, at least one of the notches having a depth sufficient to intersect the adjacent recess to provide an opening through which the spring finger extends into a contact making position within said recess.
  • a tube 'socket of the type having, a base having a pin receiving recess With a pin contact therein, a tubular condenser surrounding the pin contact and having inner and outer electrode coatings, the combination of a longitudinal slot at one side and intersecting and extending along the recess, and a terminal in said slot having a spring finger bowed inward from the slot into engagement with the outer electrode coating of the condenser.
  • a tube socket of the type having, a base having pin receiving recesses, a tubular condenser in one of the recesses and having inner and outer electrode contact surfaces, a pin engaging terminal within and contacting the inner surface of the condenser, the combination of a longitudinally extending notch at one side of and intersecting one .recess to provide an opening into the recess, and a contact member having a spring finger received in the notch and engaging the outer surface of the condenser.

Description

Jan. 13, 1'953 J. D. HEIBEL 2525582 TUBE SOCKET Filed Jan. 7,'1946 2 sHEETs-SHEET 1 IN V EN TOR.
J. D. HEIBEL TUBE SOCKET Jan. 13, 1953 2 SHEETS-SHEET 2 Filed Jan. '7, 1946 Patented Jan. 13, 1953 TUBE SOCKET Jerome D. Heibel, Eric, Pa., assignor to Eric Resistor Corporation, Eric, Pa., a corporation of Pennsylvania Application January 7, 1946, Serial No. 639,613
Cla-ims. (Cl.'175--41) This invention is intended to simplify the connection of condensers to vacuum tube elements by using tubular condensers in the tube socket around the socket terminals.
broken away, of a tube socket showing tubular condensers surrounding two of the socket terminals and connected to a mounting plate; Fig. 2V is a sectional view on line 2-2 of 1; Fig. 3 is a sectional view through one of the tubular condensers; Fig. 4 is a sectional view through one of the socket terminale; Fig. 5 is a top plan view, partly broken away, of a. modification in which the condensers are connected to the center ground Shield; Fig. 6 is a section on line E-E of Fig. 5; Pig. 7 is a fragmentary section of a modification in which the tubularicondensers and contacts are inserted from the bottom of the socket; and Pig. 8 is a fragmentary section of another modification in which the condenser is connected to contactother 'than ground.
In the drawings, l indicates a mounting plate socket. The vwell has indentations 5 which fit into complementary recesses in a mounting flange on the base and hold the base against rotation. The base is held in the well by a plate 'l of the same general Shape as the mounting plate projecting inwardly over the top of the mounting flange 5. The plates are secured together by tabs 8 on the plate 1 which are bent over the mounting plate. On the top of the base is a disc 9 of insulating material having holes it' for receiving the base pins of a Vacuum tube. At the center of the base is a non-circular opening i i receiving the aligning plug of the Vacuum tube. Within the opening H is a center ground shield 12a having lips `2 sp'un over the upper surface of the disc to hold it in place, and a lip |3 spun over a shoulder |4 on the base around the opening ll. At the lower end the center ground shield is provided with spring fingers E5 for looking the tube in the socket and with a ground terminal 16.
Directly beneath the pin receiving holes IS are recesses receiving pin engaging terminals I 1 hav- 'ing integral strips |8 projecting through slots IQ in the base. These parts are or may be of common construction.
It is desirable that some of the base pins of the vacuum tube be connected to conden ers and it is important that the condenser leads be kept short. For these base pins there are provided enlarged recesses 2B receiving a tubular Ceramic condenser 2| having an inner metal coating 22 surrounding and in contact with pin terminal l'! and an outer metal coating 23 in contact with tabs 2d extending through notches 25 in the side walls of the base. In order to insure good contact between the pin terminal and the condenser, the terminals are preferably made, as shown in 4, of sheet metal with a spring finger 25 in the part forming substantially a direct continuation of the strip 18 and with a spring finger Zl on each side which are folded toward each other to provide a roughly triangular opening for receivin'g the base pin. Below the fingers 25 and 21 are separate spring fingers 28 and a projection '29 which make contact with the inner metal coating 22 of the condenser. Because the spring fingers 28 are separate from the spring fingers 26 and 21 which contact the inserted pins on the vacuum tube base, the separate spring fingers 28 can be proportioned to provide the proper contact pressure to the inner condenser electrode 22 and this contact pressure exerted by the fingers 23 will not be increased by the outward movement of the fingers El' such as would be produced by the insertion of the vacuum tube base pin thercbetween. This eliminates the danger of cracking the condenser elements.
Thebase may be constructed so that the condensers may be connected between each of the pin recei'v'ing terminals and the mounting plate which will usually be grounded. The length of the condenser leads is obviously kept to a minimum since it consists of the spring contacts between the inner and outer condenser coatings.
In Fig. 5 and Fig. 6 is shown a modification in which the condensers are connected between the pin terminale and the center ground shield. As in the previously descrbed construction, the base 4 is mounted in the well 2 of the mounting plate I and the mounting fiange 6 rests on the inwardly extending fiange 3 at the lower end of the well. The base is held in the well by lips 3G on the mounting plate which are spun over the upper edge of the mounting flange. The disc 9 with the pin receivng holes IO is held in place by spun .receiving openings 39.
over lips I2 on the center ground shield. Directly beneath the pin receiving holes are the pin engaging contacts surrounded by the ceramic condensers 2|. The connection to the outer metal coating 23 of the condenser is made through a contact ring 3| seated on a projection 32 on the base and having spring fingers 33 extending through notches 313 in the base into contact with the outer metal coating 23 and having spring fingers 35 engaging the cylindrical portion 35 of the center ground shield. In other respects the socket construction is the same as that shown in Figs. 1 to 4 and correspcnding parts are indicated by the same reference numerals.
In the construction so far described, the pin receiving terminals and condensers are assembled from the top and the assembly is completed by fastening the disc 9 in place.
In Fig. 7 is indicated an alternative construction in which the condensers and terminals are inserted from the bottom. In this construction the base 31 has a top wall 38 provided with pin Directly below the openings 39 are enlarged recesses LH) receiving the tubular ceramic condenser 2| and the pin contact ll. The recesses iii) are open at the bottom and are closed by a disc 4| having slots receiving the strips IB and held in place by spun over .lips 43 on the center ground shield and by a snap ring 44. The contact with the outer condenser coating 23 is made by a contact ring 45 similar to the contact ring 3| and having contact fingers 49 engaging the condenser coating 23 and contact fingers Ill engaging the center ground shield.
In Fig. 8 is shown a modification of the Fig. 6 construction in which the'base has one or more slots 48 receiving contacts 49 engaging the outer metallic surface 23 of the condenser 2|. The contact has a spring finger 59 engaging a shoulder at the bottom of the condenser receiving recesses. The contact also has a yieldable projection 52 making a tight fit between the contact and slot. The contact 49 is useful in connecting the tube element to another circuit element.
What I claim as new is:
1. In a tube socket of the type having, a base, pin receiving recesses, a tubular condenser in one of the recesses and having inner and outer electrode contact surfaces, a pin-engaging terminal Within and contacting the inner surface of the condenser, an opening in the base providing access to the outer surface of the condenser. a center ground shield, and a connection from the shield engaging the outer surface of the condenser through said opening.
2. In a tube socket of the type having, a base, pin receiving recesses, a tubular condenser in one of the recesses and having inner and outer electrode contact surfaces, and a pin engaging terminal within and contacting the inner surface of the condenser, the combination of a longitudinal slot in the base open at at least one end and intersecting and extending along the recess to provide access to the outer surface of the condenser, and a contact having a part in said slot engaging the outer surface of the condenser and a part Vextending out of the open end of said slot for connection to another circuit element.
3. In a tube socket of the type having, a base having circularly spaced pin receiving recesses having elements therein with parts making contact with inserted pins, the combination of a contact ring having spring fingers opposite and extending longitudinally of the recesses and of the axis of the ring, and longitudinal notches in the base receiving and locating the spring fingers, at least one of the notches having a depth sufficient to intersect the adjacent recess to provide an opening through which the spring finger extends into a contact making position within said recess.
4. In a tube 'socket of the type having, a base having a pin receiving recess With a pin contact therein, a tubular condenser surrounding the pin contact and having inner and outer electrode coatings, the combination of a longitudinal slot at one side and intersecting and extending along the recess, and a terminal in said slot having a spring finger bowed inward from the slot into engagement with the outer electrode coating of the condenser.
5. In a tube socket of the type having, a base having pin receiving recesses, a tubular condenser in one of the recesses and having inner and outer electrode contact surfaces, a pin engaging terminal within and contacting the inner surface of the condenser, the combination of a longitudinally extending notch at one side of and intersecting one .recess to provide an opening into the recess, and a contact member having a spring finger received in the notch and engaging the outer surface of the condenser. i
JEROME D. HEIBEL.
REFEEENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,648,605 Bobo Nov. 8, 1927 1,796,855 Ahlers Mar. 17, 1931 1,825,534 Mavrogenis Sept. 29, 1931 2,259,738 Del Camp Oct. 21, 1941 2,291,808 Henning Aug. 4, 1942 2,377,893 Lorenzen June 12, 1945 2,421,780 Frear June 10, 1947 2,461,658 Roup Feb. 15, 1949
US639613A 1946-01-07 1946-01-07 Tube socket Expired - Lifetime US2625582A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667573A (en) * 1952-06-13 1954-01-26 Satinoff David Electron tube socket with replaceable by-pass capacitors
US2760128A (en) * 1954-11-03 1956-08-21 Collins Radio Co Grid terminal pick-up plate
US2875386A (en) * 1955-01-25 1959-02-24 Rca Corp Microwave bypass capacitor
US3181044A (en) * 1962-11-14 1965-04-27 William C W Duncan Capacitor mount
DE1230921B (en) * 1957-02-19 1966-12-22 Eiteli Mccullough Inc Socket for tetrodes

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1648605A (en) * 1925-08-11 1927-11-08 Edward H Bobo Connecter
US1796855A (en) * 1924-03-27 1931-03-17 Dayton Eng Lab Co Electrical condenser
US1825534A (en) * 1927-08-17 1931-09-29 Mavrogenis Aristote Tube base adapter
US2259738A (en) * 1938-12-17 1941-10-21 Cinch Mfg Corp Vacuum tube socket
US2291808A (en) * 1937-07-23 1942-08-04 Hugh H Eby Inc Socket
US2377893A (en) * 1941-12-19 1945-06-12 Howard O Lorenzen Radio tube socket adaptations
US2421780A (en) * 1944-03-30 1947-06-10 Philco Corp Socket structure
US2461658A (en) * 1946-04-19 1949-02-15 Globe Union Inc Electric circuit unit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1796855A (en) * 1924-03-27 1931-03-17 Dayton Eng Lab Co Electrical condenser
US1648605A (en) * 1925-08-11 1927-11-08 Edward H Bobo Connecter
US1825534A (en) * 1927-08-17 1931-09-29 Mavrogenis Aristote Tube base adapter
US2291808A (en) * 1937-07-23 1942-08-04 Hugh H Eby Inc Socket
US2259738A (en) * 1938-12-17 1941-10-21 Cinch Mfg Corp Vacuum tube socket
US2377893A (en) * 1941-12-19 1945-06-12 Howard O Lorenzen Radio tube socket adaptations
US2421780A (en) * 1944-03-30 1947-06-10 Philco Corp Socket structure
US2461658A (en) * 1946-04-19 1949-02-15 Globe Union Inc Electric circuit unit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667573A (en) * 1952-06-13 1954-01-26 Satinoff David Electron tube socket with replaceable by-pass capacitors
US2760128A (en) * 1954-11-03 1956-08-21 Collins Radio Co Grid terminal pick-up plate
US2875386A (en) * 1955-01-25 1959-02-24 Rca Corp Microwave bypass capacitor
DE1230921B (en) * 1957-02-19 1966-12-22 Eiteli Mccullough Inc Socket for tetrodes
US3181044A (en) * 1962-11-14 1965-04-27 William C W Duncan Capacitor mount

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