US1738028A - Vacuum-tube socket - Google Patents

Vacuum-tube socket Download PDF

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US1738028A
US1738028A US101311A US10131126A US1738028A US 1738028 A US1738028 A US 1738028A US 101311 A US101311 A US 101311A US 10131126 A US10131126 A US 10131126A US 1738028 A US1738028 A US 1738028A
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contact
prongs
tube
socket
strips
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US101311A
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Alden Milton
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ALDEN Manufacturing Co
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ALDEN Manufacturing Co
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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
    • H01R33/7621—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 screw, clamp, wrap or spring connection

Definitions

  • This invention relates to-improvements 1n vacuum tube sockets.
  • An objectl of the invention is to provide a device for firmly retaining the vacuum tube of a radio apparatus rmly in its socket and at the same time, to prov1de good electrlcal contact between all of the contact members of the socket and the prongs of the tube.
  • a further object is to retain the vacuum tube on the socket by frictional resistance only which will permit the prongs of the tube to be inserted by moving the tube downward along its axis and to permit lts removal 1n the same way by ulling upward, or 1n other words it may be efined as a direct push and pull socket, in contradistinction to that type of socket in which a barrel portion is provided with a slot, or groove in the side thereof to receive the pin on the tube, whereby the tube must be rotated slightly in order to lock 1t 1n place in the socket.
  • a further object is in the location, shape and size of the ron receiving openings for insuring flexibihty o contact.
  • a further object is to provide a socket for receiving vacuum tubes with pins of varylng size and having elongated openlngs so os1 tioned to provide correct insertion 4o the tubes.
  • the invention is ca able of several modifications yet all embo ying the same general features.
  • Fig. 1 is a vertical sectional view of one form of socket showing the base portlon of a vacuum tube broken away and with the contact prongs inserted in the socket.
  • Fig. 2 is a modification in which some of the openin s .in the upper portlon of the socket are ormed substantia ly elliptical or elongated2 whereby prongs of various siaes and positions on a vacuum tube may be 1nserted and if necessary slightly rotated, or, in other words, the socket might be defined as universal.
  • Fig. 3 is a vertical sectional view on ⁇ the line .3-3 of Fig. 2.
  • Fig. 4 is a top Elan view of a further modicatlon in whic the shape of the contact arms are f'ormed with a short bend, and with a de ending portion with which portions, the sides of the ,Contact prongs engage.
  • Fig. 5 is a vertical sectional view on the
  • Fig. 6 is a sectional view on the line 6 6 of Flg. 7 showing a further modification in which the upper inner end of the contact strip is free to move and when the tube is inserted the strip ⁇ operates to Vexert a counter pressure 1n the opposite direction to that exerted by the ressure of the inserted prong for placing t e contact strip under stress for maklng a good contact.
  • Fig. 7 is a plan view of Fig. 6.
  • Fig. 8 is a bottom lan view of Fig. 7 omittin one contact spring.
  • ig. 9 is a further modification in which the contact stri s are folded inward towards each other, andp engage opposite sides of the prongs of the tube.
  • Fig. 10 is a detail view of one of the coni tact strips with one of the contact prongs about to be inserted.
  • Fig. 11 is a detail view of a further modification in which the outer surface of the contact strips normally engage a fixed stop.
  • E Fig. 12 is a further modification in which the contact strips engage a fixed stop and are under constant stress or tension.
  • a socket oltion as a Whole having the base part 2, the ledge part 3, the upwardly inclined portion 4 and the top part 5 which is formed with openings 6 to receive the prongs 7 of a vacuum tube 8.
  • 9 designates the contact strips which are secured to the base part 2 by means of the threaded bolts 10 and the thumb nuts 11. These strips are formed with a bend at the point 12 intermediate its ends and an upwardly extending portion 13 which .normally projects slightly beneath the prong receiving openings 6. The lower ends of the strips are inclined, as shown to fit the under side of the ledge part 3.
  • the upwardly extending portion 13 therefore forms a long contact and wiping surface for the prongs 7 of the tube and permits the tube to be inserted by moving it in a direction which coincides with the axial line of the socket and is withdrawn by pulling it upward in this axial line. or in other words it is a push and pull socket, the frictioual resistance alone being suflicient to retain the tube in place on the socket.
  • the socket is formed with openings 15 and 16 ot elongated or elliptical shaped formation while the openings 17 and 18 are circular and are or different sizes, whereby the prongs 19 of the tube 8, shown in Fig. 3, may be inserted in these openings for making cont-act with the tlexible'or elastic contact strips 20 below the openings and even it' the prongs of the tube are of different sizes the elongated o enings will permit tubes having prongs o different sizes and location to be inserted and slightly rotated if necessary for making contact.
  • the arrangement of the contact strips is such that the prongs 19 frictionally engages the same.
  • These contact strips have an upwardly projecting portion 21 and an inwardly extending bent Jortion 22 which rests against the inner wa 23. 1When the prongs 19 are inserted the part 21 will yield sufliciently at the point of contact 24 to form a good electrical connection between thev strips and the prongs, or, the strips will oier a frictional resistance in the opposite direction to the pressure of the prongs there against. The friction alone being suilicient to hold the tube in place without any other v locking devices.
  • the ledge portion 25, see Fig. 2, has marked thereon, the words lin here and an arrow as indicated at 26. This is for the purpose of properly locating thetube on the socket in order to prevent the filament of the'tube from being burned out in case a wrong connection with the battery terminals is made.
  • Figs. 4 and 5 are for a modification in which the contact strips 27 are formed with a short bend 28 at their upper inner ends and a short depending part 29 with which the tube prongs 30 engage when inserted.
  • This construction atl'ords a long yieldable arm part 31 together with the short contact part 29.
  • Figs. G, 7, and 8 are for a further modiication in which the base part 32 is recessed as shown.
  • This construction is formed with the top portion 33 having the openings 33 to receive the prongs 34 ol the tube as before.
  • 35 is an annular recess at the upper end portion of the recess which is for strengthening purposes. If desired the part 43 may engage the boss when the tube is inserted.
  • 36 is a depending or boss portion.
  • 37 are the contact strips which are attached at their lower ends to the base portion 32 by means of the small screws 38 and nuts 39. The inner lends of the contact strips 37 are bent at 40 and then extend upward at 41, their upper ends terminating in the reversely bent tips 43.
  • the prongs 34 When the prongs 34 are inserted in the openings 33 they will slide down and on the outer surfaces of the strips. This operation will place still further stress on these strips in a lateral direction which may be indicated by the dotted lines 45. The tubes will therefore be firmly retained in place on the socket, by friction alone. 47 are the securing screws for the strips 37. The strips must yield laterall when the prongs 34 are inserted. The strips therefore make good electrical contact at all times both during the insertion and removal of the prongs because ot' the constant stress which is imparted to the strips. 37 designate the usual openings to receive the attaching screws.
  • thecontact strip 48 is formed with two struck up portions 49 and 50 having the downwardly inturned ends 51 and 52 which, as shown, do not quite meet.
  • the prongs 53 when inserted make contact with these inturned portions and on opposite sides ol the same whereby a double contact is made.
  • This construction is such that the tube is retained in place by friction alone. In all of these forms of sockets the tube is understood as being retained in place by friction alone yet permitting it to be readily inserted and removed.
  • FIG. l'l'fthe contact strips 54 are un er a bending stress at all times since they are soshapedl or bent when formed as to normally exert a pressure on the shoulders 55 formed in the sides of the openings for the prongs as shown in this figure.
  • the prongs 56 of the vacuum tube When the prongs 56 of the vacuum tube are inserted they will engage the downwardly extending part 57 and place still greater stress on the contact strips. These strips are therefore under stress at all times and whether or not a tube is inserted.
  • Fig. 12 illustrates a modification in which the contact strips 58 are so shaped, or bent, when formed, that the curved part 59 normally engages the shoulder G0 which extends into and terminates at the prong receiving openings 61, or in other words, the curved part 59 extends across the openings 61, whereby, when the prongs 62 are inserted they will engage the outer surface and move them inward against the tension or set of the strips.
  • a comparison of the two positions of the strips in Fig. 12 clearly illustrates the idea that these strips are normally under stress or tension when attached to the base piece by the bolts 63. Friction alone operates to retain the tubes in place.
  • Fig. 2 illustrates elongated openings of different sizes for receiving contact prongs or pins of different sizes and location. This is important as dif- "erent types ot vacuum tubes have difl'erent sizes and positions oit contact pins.
  • the present socket construction is designed to receive vacuum tubes having comparatively short or long prongs or pins as well as pins of varying diameters and location as regards to center. rthe dimensions in the drawings are illustrative and not drawn to scale.
  • a vacuum tube socket comprising an insulating base having a perforated top with a dependingI Wall, an outwardly extending flange and a supporting edge and having a chamber enclosed by said parts, the lower wall et said flange being inclined relative to the top and conducting members each formed titi ot a single strip of spring metal bent intermediate its ends and having its outer end secured to said inclined lower wall of said *flange and its opposite end extending upwardly and adjacent the lower edge of one of the perlorations in the top.
  • a vacuum tube socket comprising an insulating base having a perforated top with a depending wall, and an outwardly and downwardly extending ange, and having a chamber enclosed by said parts, and conducting members each formed of a single strip ol spring metal bent intermediate its ends and having an outer spring arm secured to a lower wall of said ange and an inner spring end extending inclined upwardly and adjacent the lower edge ot one of the perforations in the top.
  • l vacuum tube socket comprising an insulating base having a top with a number ot perloratons of different sizes and a depending? ⁇ wall and an outwardly and down wardly extending flange and having a cham ber enclosed thereby, a lower wall of said flange being arranged below the top and conducting members each formed of a single strip ot spring metal bent upwardly intermediate its ends and having its lower and outer end secured to said lower wall of said Harige and its upper and inner contact end extending upwardly adjacent the lower edge of one of the perforations in the top with a yielding contact surface in position to be en gaged by a side wall ot a tube prong, said contact ends being adapted to coact with prongs of different diameters and to yield independently of each other, A
  • a vacuum tube socket comprising an insulating base having a top with four perforations and a depending wall and an outwardly and downwardly extending ange and hav- I ing a chamber enclosed by said parts, a lower lli lid

Description

Dec. 3, 1929. M, ALBEN 1,738,028
VACUUM TUBE SOCKET Filed April l2 1926 5 Sheets-Sheet l IIm f INVENTOR,
TORNEY.
Dec. 3, 1929. M. ALDEN 1,733,028
VACUUM TUBE SOCKET Filed April 12 1926 5 Sheets-Sheet '2 IN1/EN TOR, M1750 3mm,
@71W M www.
A TTORNE Y.
fill
l,Patented Dec. 3, 1929 UNITED fsTaTl-:s
PATENT o1-'FICE HILTON' ALBEN, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOB T0 ALBEN MUFAC- T'UBING COMPANY, 0l' SPRINGFIELD, KASSACHUSETTS, A. COBYOBATIONDF KASSA- CHUSETTS vacuum-TUBE socializarv mutation mea apra 12,
The present invention and application is a continuation in part of my copending a plication, filed Fe ruary 27, 1923, Ser. o. 621,575, :for Socket for vacuum tubes now Patent #1,580,942. I
This invention relates to-improvements 1n vacuum tube sockets. A
An objectl of the invention is to provide a device for firmly retaining the vacuum tube of a radio apparatus rmly in its socket and at the same time, to prov1de good electrlcal contact between all of the contact members of the socket and the prongs of the tube.
A further object is to retain the vacuum tube on the socket by frictional resistance only which will permit the prongs of the tube to be inserted by moving the tube downward along its axis and to permit lts removal 1n the same way by ulling upward, or 1n other words it may be efined as a direct push and pull socket, in contradistinction to that type of socket in which a barrel portion is provided with a slot, or groove in the side thereof to receive the pin on the tube, whereby the tube must be rotated slightly in order to lock 1t 1n place in the socket.
A further object is in the location, shape and size of the ron receiving openings for insuring flexibihty o contact.
A further object is to provide a socket for receiving vacuum tubes with pins of varylng size and having elongated openlngs so os1 tioned to provide correct insertion 4o the tubes.
The invention is ca able of several modifications yet all embo ying the same general features.
Referring to the drawlngs:
Fig. 1 is a vertical sectional view of one form of socket showing the base portlon of a vacuum tube broken away and with the contact prongs inserted in the socket.
Fig. 2 is a modification in which some of the openin s .in the upper portlon of the socket are ormed substantia ly elliptical or elongated2 whereby prongs of various siaes and positions on a vacuum tube may be 1nserted and if necessary slightly rotated, or, in other words, the socket might be defined as universal.
1926. Serial K0. 101,311.
Fig. 3 is a vertical sectional view on `the line .3-3 of Fig. 2.
Fig. 4 is a top Elan view of a further modicatlon in whic the shape of the contact arms are f'ormed with a short bend, and with a de ending portion with which portions, the sides of the ,Contact prongs engage.
Fig. 5 is a vertical sectional view on the,
line 5-5 of Fig. 4 showing the rongs on the tube in contact with the depending portions.
Fig. 6 is a sectional view on the line 6 6 of Flg. 7 showing a further modification in which the upper inner end of the contact strip is free to move and when the tube is inserted the strip` operates to Vexert a counter pressure 1n the opposite direction to that exerted by the ressure of the inserted prong for placing t e contact strip under stress for maklng a good contact.
Fig. 7 is a plan view of Fig. 6.
Fig. 8 is a bottom lan view of Fig. 7 omittin one contact spring.
ig. 9 is a further modification in which the contact stri s are folded inward towards each other, andp engage opposite sides of the prongs of the tube.
' Fig. 10 is a detail view of one of the coni tact strips with one of the contact prongs about to be inserted.
Fig. 11 is a detail view of a further modification in which the outer surface of the contact strips normally engage a fixed stop.
E Fig. 12 is a further modification in which the contact strips engage a fixed stop and are under constant stress or tension.
Referring to the drawings in detail:
1 designates a socket oltion as a Whole having the base part 2, the ledge part 3, the upwardly inclined portion 4 and the top part 5 which is formed with openings 6 to receive the prongs 7 of a vacuum tube 8. 9 designates the contact strips which are secured to the base part 2 by means of the threaded bolts 10 and the thumb nuts 11. These strips are formed with a bend at the point 12 intermediate its ends and an upwardly extending portion 13 which .normally projects slightly beneath the prong receiving openings 6. The lower ends of the strips are inclined, as shown to fit the under side of the ledge part 3. The upwardly extending portion 13 therefore forms a long contact and wiping surface for the prongs 7 of the tube and permits the tube to be inserted by moving it in a direction which coincides with the axial line of the socket and is withdrawn by pulling it upward in this axial line. or in other words it is a push and pull socket, the frictioual resistance alone being suflicient to retain the tube in place on the socket.
Referring to Figs. 2 and 3 the upper top portion 14 ot' the socket is formed with openings 15 and 16 ot elongated or elliptical shaped formation while the openings 17 and 18 are circular and are or different sizes, whereby the prongs 19 of the tube 8, shown in Fig. 3, may be inserted in these openings for making cont-act with the tlexible'or elastic contact strips 20 below the openings and even it' the prongs of the tube are of different sizes the elongated o enings will permit tubes having prongs o different sizes and location to be inserted and slightly rotated if necessary for making contact. The arrangement of the contact strips is such that the prongs 19 frictionally engages the same. These contact strips have an upwardly projecting portion 21 and an inwardly extending bent Jortion 22 which rests against the inner wa 23. 1When the prongs 19 are inserted the part 21 will yield sufliciently at the point of contact 24 to form a good electrical connection between thev strips and the prongs, or, the strips will oier a frictional resistance in the opposite direction to the pressure of the prongs there against. The friction alone being suilicient to hold the tube in place without any other v locking devices.
It should be stated that the ledge portion 25, see Fig. 2, has marked thereon, the words lin here and an arrow as indicated at 26. This is for the purpose of properly locating thetube on the socket in order to prevent the filament of the'tube from being burned out in case a wrong connection with the battery terminals is made.
Figs. 4 and 5 are for a modification in which the contact strips 27 are formed with a short bend 28 at their upper inner ends and a short depending part 29 with which the tube prongs 30 engage when inserted. This construction atl'ords a long yieldable arm part 31 together with the short contact part 29.
Figs. G, 7, and 8 are for a further modiication in which the base part 32 is recessed as shown. This construction is formed with the top portion 33 having the openings 33 to receive the prongs 34 ol the tube as before. 35 is an annular recess at the upper end portion of the recess which is for strengthening purposes. If desired the part 43 may engage the boss when the tube is inserted. 36 is a depending or boss portion. 37 are the contact strips which are attached at their lower ends to the base portion 32 by means of the small screws 38 and nuts 39. The inner lends of the contact strips 37 are bent at 40 and then extend upward at 41, their upper ends terminating in the reversely bent tips 43. When the prongs 34 are inserted in the openings 33 they will slide down and on the outer surfaces of the strips. This operation will place still further stress on these strips in a lateral direction which may be indicated by the dotted lines 45. The tubes will therefore be firmly retained in place on the socket, by friction alone. 47 are the securing screws for the strips 37. The strips must yield laterall when the prongs 34 are inserted. The strips therefore make good electrical contact at all times both during the insertion and removal of the prongs because ot' the constant stress which is imparted to the strips. 37 designate the usual openings to receive the attaching screws.
ln Fig. 10 thecontact strip 48 is formed with two struck up portions 49 and 50 having the downwardly inturned ends 51 and 52 which, as shown, do not quite meet. The prongs 53 when inserted make contact with these inturned portions and on opposite sides ol the same whereby a double contact is made. This construction is such that the tube is retained in place by friction alone. In all of these forms of sockets the tube is understood as being retained in place by friction alone yet permitting it to be readily inserted and removed.
Referrin toFig. l'l'fthe contact strips 54 are un er a bending stress at all times since they are soshapedl or bent when formed as to normally exert a pressure on the shoulders 55 formed in the sides of the openings for the prongs as shown in this figure. When the prongs 56 of the vacuum tube are inserted they will engage the downwardly extending part 57 and place still greater stress on the contact strips. These strips are therefore under stress at all times and whether or not a tube is inserted.
Fig. 12 illustrates a modification in which the contact strips 58 are so shaped, or bent, when formed, that the curved part 59 normally engages the shoulder G0 which extends into and terminates at the prong receiving openings 61, or in other words, the curved part 59 extends across the openings 61, whereby, when the prongs 62 are inserted they will engage the outer surface and move them inward against the tension or set of the strips. A comparison of the two positions of the strips in Fig. 12 clearly illustrates the idea that these strips are normally under stress or tension when attached to the base piece by the bolts 63. Friction alone operates to retain the tubes in place.
One of the advantages of my improvementY llll) lli tupes having short prongs or contact termina s.
'lhe socket, as shown in Fig. 2 illustrates elongated openings of different sizes for receiving contact prongs or pins of different sizes and location. This is important as dif- "erent types ot vacuum tubes have difl'erent sizes and positions oit contact pins.
llt is to be understood that the present socket construction is designed to receive vacuum tubes having comparatively short or long prongs or pins as well as pins of varying diameters and location as regards to center. rthe dimensions in the drawings are illustrative and not drawn to scale.
lflhatl claim is:
l. A vacuum tube socket comprising an insulating base having a perforated top with a dependingI Wall, an outwardly extending flange and a supporting edge and having a chamber enclosed by said parts, the lower wall et said flange being inclined relative to the top and conducting members each formed titi ot a single strip of spring metal bent intermediate its ends and having its outer end secured to said inclined lower wall of said *flange and its opposite end extending upwardly and adjacent the lower edge of one of the perlorations in the top.
2. A vacuum tube socket comprising an insulating base having a perforated top with a depending wall, and an outwardly and downwardly extending ange, and having a chamber enclosed by said parts, and conducting members each formed of a single strip ol spring metal bent intermediate its ends and having an outer spring arm secured to a lower wall of said ange and an inner spring end extending inclined upwardly and adjacent the lower edge ot one of the perforations in the top.
3. l vacuum tube socket comprising an insulating base having a top with a number ot perloratons of different sizes and a depending?` wall and an outwardly and down wardly extending flange and having a cham ber enclosed thereby, a lower wall of said flange being arranged below the top and conducting members each formed of a single strip ot spring metal bent upwardly intermediate its ends and having its lower and outer end secured to said lower wall of said Harige and its upper and inner contact end extending upwardly adjacent the lower edge of one of the perforations in the top with a yielding contact surface in position to be en gaged by a side wall ot a tube prong, said contact ends being adapted to coact with prongs of different diameters and to yield independently of each other, A
4. A vacuum tube socket comprising an insulating base having a top with four perforations and a depending wall and an outwardly and downwardly extending ange and hav- I ing a chamber enclosed by said parts, a lower lli lid
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090068877A1 (en) * 2005-07-13 2009-03-12 Erwin Melzner Apparatus for making electrical contact with luminous means in spotlights

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090068877A1 (en) * 2005-07-13 2009-03-12 Erwin Melzner Apparatus for making electrical contact with luminous means in spotlights
US7744412B2 (en) 2005-07-13 2010-06-29 Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg Apparatus for making electrical contact with luminous means in spotlights

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