US2478469A - Telephone set - Google Patents

Telephone set Download PDF

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Publication number
US2478469A
US2478469A US659208A US65920846A US2478469A US 2478469 A US2478469 A US 2478469A US 659208 A US659208 A US 659208A US 65920846 A US65920846 A US 65920846A US 2478469 A US2478469 A US 2478469A
Authority
US
United States
Prior art keywords
terminal
terminals
block
conductors
base block
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
Application number
US659208A
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English (en)
Inventor
Edwin L Earle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kellogg Switchboard and Supply Co
Original Assignee
Kellogg Switchboard and Supply Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kellogg Switchboard and Supply Co filed Critical Kellogg Switchboard and Supply Co
Priority to US659208A priority Critical patent/US2478469A/en
Priority to FR941246D priority patent/FR941246A/fr
Application granted granted Critical
Publication of US2478469A publication Critical patent/US2478469A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves

Definitions

  • stati nsl t ener l obi etuis.tomroy de an mp vedfl ormroi base: block assem ly., onfn in ee aa oo item og ther: withlloca l nterconnectedterm nals re lfihe ma n n apparatussand,condupt s f. he n: tire te1epbon.e ets,
  • One... e tu .e.of be nv tion includestb se of; sonerpleces conductor: partlv h chl, fter. as: s mbly w tbmhe fixed. rminal mem er ili he. ase. b 09 2, ead y. weara e 1?0:,.,l 11 seyeral equired loca o ductors-s nJshe.i11 1 amp d em3 odime t of tnewiniventic his; condu tor. Hart akes the, form or a; grid, punched from.
  • erminallmembers hereQi-., bese erminel m m er th u tratedg mbodimen i telsec he rmloil na ,iserew erminals il urs aped orm and een allrtubu alt n-v qcket term nals:
  • Fig. 2 is a view of the base assemblmipeor poraieiainithei telephone: set: ofa Figs; 11 SxSfiBH from a spointiaboye the right. srearlcornenethereof;
  • Egg. 9 9A are fragrnentary-views; partly in section, o fgscrew" terminal 30 of Fig: 2' and-the associated portion of the, base block;
  • Fig lb is a reduced-scale rearview-ofthe-telepile e e f; f e 1: with ther a "P e 11g brokenaway;
  • Base-b1ock--9" is secured'to basep late 'l by three screws 49, two of "WhiQh-a1e seen in Fig. 21" Recesses 38 and 39 laterally receive handset cord Stand liner cgrd'lii incoming througlr marginal slotsin hogsingjlFig l).
  • screw terminals are carried in base block 9 as follows: 2
  • 3 I provided as one connection point for a two-position ringer link l8 which cooperates alternatively with a second screw in each of the double-screw terminals 30 and 32 to enable one ringer connection to be shifted alternatively between a line conductor and ground; and screw terminals 34 to 36, which cooperate with three-position transmitter link l9, when the set is used for common-battery operation, to adapt the set for operation according to the resistance of the line to which it is connected.
  • FIG. 3 and 5 A bottom view of the pin-socket terminals through which condenser block I3 and coil block 4 of Fig. 2 attach (mechanically and electrically) to base block 9 is shown in Figs. 3 and 5. These include five terminals 4la to Me for condenser block l3, and seven terminals 43a to 439 for coil block I4.
  • the four similar pin-socket terminals 42a to 42d are provided to receive a calling-device plug when the set is used as an automatic telephone set.
  • terminals a and c in group 42 are bridged by a link 20 (Fig. 2) which may be a section of wire of suitable size, bent in the form of a staple.
  • Screw terminals Base block 9 has openings formed therein for receiving individually th several screw terminals 2
  • the opening for receiving double-screw terminal 30 is shown in fragmentary sectional View Figs. 9 and 9A.
  • Fig. 9A shows that this opening is wide enough to receive the terminal ends 53, but of insuflicient width to receive the wider main horizontal portion of the screw terminal.
  • the terminal ends 53 are formed inwardly at their bifurcate ends for easier installation.
  • Outwardly pointed barbs 54 engage the under surface of base block 9 to hold the screw terminal securely in its installed position.
  • the screw terminals are preferably made of material having substantial spring action. As can be seen from Fig. 9, barbs 54 cause a slight inward compression of terminal ends 53 as screw terminal 30 is being forced downwardly into its illustrated installed position, followed by an outward snap action to the illustrated locked Position.
  • the width of the main horizontal portion is such that the screw terminal cannot be pushed through the opening in the direction of insertion, while the barbs 54 engage the under surface of the base block to prevent withdrawal.
  • single-screw terminals such as 2
  • a single barb such as 54 suflices to retain any single-screw terminal in place.
  • terminal 39 can be readily removed by first compressing end members 53 together sufficiently to render its retaining barbs 54 ineffective.
  • the other screw terminals are similarly readily removable.
  • Pin-socket terminals Suitable openings in base block 9 are provided for each of the pin-socket terminals comprising groups 4
  • the wall of the base block is thickened at regions 55, 56, 51, (Fig. 3) by formations which may be described as dependent bosses. Bosses 5E and 55 are shown in section in Figs. 12 and 13. This thickening of the Wall permits a satisfactory support length for the pinsocket terminals not required for the screw terminals.
  • Fig. 11 is an enlarged top view of the section of base block 9 which contains pin-socket terminal 421) of Figs. 2, 3, and 5, while Fig. 12 is a sectional View of the base-block fragment shown in Fig. 11, illustrating terminal 421) in profile.
  • This terminal has the general form of a split tube which lies loosely within its opening in base block 9.
  • a fiat flange is formed integrally with the top end of the tubular portion to limit downward movement of the terminal within the base block.
  • This flange is wide enough to remain outside the confines of the opening in 1 any lateral position of the terminal therein, keeping in mind that the opening is enough larger (as shown) than the tubular portion of the terminal to permit substantial lateral shifting of the terminal when the pins of the dial plug (not shown) are inserted into terminals 42a to 42d (Fig, 2).
  • , 42, and 43 are variously positioned rotationally so as to permit concerned ones of conductors 63 to T! to enter their respective bifurcate attachment tabs.
  • Each pin-socket terminal is retained in its desired rotational position by a locating sector such as 5
  • Base block 9 is recessed as shown in Figs. 11 and 12 to receive the top flange of each pinsocket terminal, permitting the attachment plugs (not shown) to contact the surface of block 9 without interference, as any sector 5
  • part 52 can be recurled, or removed (as by bending it back and forth until it breaks), to permit the pin-socket terminal to be withdrawn for replacement by a new one.
  • the main tubular portion of terminal 42b is connected to bifurcate attachment portion 52 by a narrow neck.
  • This construction permits part 52 to be formed generally tubular initially to enable it to be passed down through the block, and to then be flattened to its illustrated form (Figs. 3 and 5) without distorting the main tubular portion. When so flattened, part 52 is wide enough to engage the under surface of the base block to hold the pin-socket terminal reliably in pace.
  • base block 9 a generally oblong, vertical opening throug'h the wall thereof for accommodating hookswitch ill.
  • the upper portion of this opening is surrounded by a wall which has a rectangular opening in one side to accommodate insulating plate 59 of the hookswitch, and has a pair of slots'on the op- 'posite side to enable the preassembled hookswitch to be clamped in place by a pair of shoulder nuts '62.
  • Figs. 6 and *7 the hook'swit'ch in, is shown removed from the base block, while Fig. 8 (taken along line 8-8 of Fig. 3) shows a profile view of the hookswitch in place; springs a to f supported and adjusted to make contact as shown when the handset is removed from the cradle.
  • Fig. 8 shows a profile view of the hookswitch in place; springs a to f supported and adjusted to make contact as shown when the handset is removed from the cradle.
  • leaf-springs b and e are interconnected mechanically by an insulating stud, as
  • the leaf springs are held in assembled position by the pressure applied by two screws ⁇ nowadays acting to clamp them and their illustrated insulating plates between clamp plates 59'and 66.
  • Plate 60 is threaded to receive screws 6 I, which pass freely through openings in plate 59, as well as through the intervening parts.
  • the leaf springs are provided with downward extending tabs 49, which have bifurcate ends to receive the concerned ones of the local conductors G3 to i l (Fig. 5) lying within the cavity contained in the hollow back portion of block 9.
  • the side tabs of the leaf springs are provided in pairs, each pair being disposed at a different location along the clamped portion of the springs to enable the local conductors to make contact with them when arranged in the orderly manner shown in 5. As shown in Fig. 5, the tabs is of each such pair are bent outwardly prior to being attached to their respective conductors.
  • the opening in base block 9 which receives hookswit'ch is provided with a rear ledge, and with a locating bridge 43, on which parts hookswitch i2 comes to rest when inserted into the opening.
  • bell-crank lever i I has a generally horizontal end portion underlying plunger i2, and a generally vertical end portion extending alongside the free end of the contact springs of hookswitch Ill.
  • the intermediate portion of lever I! is curved to provide a pivot loop resting on pin 44 to support the lever.
  • pivot pin 44 is first placed in slots 46 and ii, and the shouldered actuating plunger i2 is inserted from below and temporarily held in place, as by hand.
  • Bell-crank lever H is next inserted and turned to bring it in place over pin 44, following which hookswitch I! may be installed to retain parts ll, 12, and 44 in position without further fastening means.
  • the generally vertical arm of bell crank H is It 1mm des six leaf rotating bell crank H about pivot pin 44.
  • hookswitch i0 arranged to normally engage the free end of leaf spring b of hookswitch i0 and displace it slightly toward its normal (handset-on) position so as to urge plunger 12 upwardly with the shoulder thereof snugly in contact with the surrounding under surface of base block 9.
  • the hookswitch is then in its illustrated alternate (handset-off) condition.
  • the screw terminals, hookswitch terminals, and pin-socket terminals are so distributed in the base block that (with a single exception) they may be interconnected according to the desired circuit arrangement by local con" ductors which do not cross each other.
  • a previously noted feature of this invention resides in the method and arrangement whereby the non-crossing local conductors are installed as one piece which is later separated into the desired number of individual conductors. The practical carrying out of this feature requires care in positioning the terminal ends so as to avoidundue crowding of the local cenductcrs at congested points.
  • the previously described locating sectors 5! (Fig. 11) are so disposed around their associated openings within which the pin-socket terminals are received that the bifurcate terminal ends of all those in groups 4! and 42, and terminal 1 in group 43, are so disposed as to freely receive conductors extending vertically across the sheet containing Figs. 3 to 5; terminals 2), e and g of group 43 are so disposed as to receive conductors extending horizontall across the sheet; and terminals a, c, and d of this group receive conductors extending diagonally across the sheet.
  • Hookswitch ID is so located in the base-block assembly that the bifurcate ends of side tabs 49 thereof freely receive conductors extending horizontally across the sheet in question.
  • the local conductors required to interconnect them may take the form of orderly arranged strips 63 to 11 (Fig. 5), which all lie in the same general wiring plane; are adequately separated from each other; and no one of them crosses another one of them at any point.
  • each of the local conductors '33 to 1'! of Fig. 5 comprises a section of grid I00,- which ma be punch-formed from a single sheet about the size and shape of base block 9.
  • the base block 9, with all terminals in place as described, but completely unwired, is wired as shown in Fig. 5 in the following steps.
  • Wire 50 is cut to length, bent, installed in the position shown in Figs. 3 and 5, and is secured in place as by soldering it to terminals 35 and 31, or crimping the bifurcate end portions together, or both.
  • the base block is now in the condition shown in Fig. 3.
  • Grid I is next so laid on the remaining unwired terminals shown in Fig. 3 (except spare terminal 21 and ground terminal 32) that the portions 63 to Ti thereof enter the bifurcate terminal ends according to the arrangement shown in Fig. 5.
  • An assembly for a telephone substation set including a base block having openings therethrough, and a number of terminal members of substantially the same length passing through the openings, respectively, and held similarly in place therein, each said terminal member having the end portion thereof lying on a given side of the block formed to receive a local inter-terminal conductor, the base block being generally flat, whereby said end portions lie generally in the same wiring plane and support the said local conductors in such plane, a portion of the block through which one of said terminal members passes being offset longitudinally of the terminals to bring the said formed end portion of the concerned terminal member to a location between the block and said wiring plane to permit local conductors attached to-other terminal members to cross the last-named end portion without coming into contact therewith, and to permit a local conductor attached to such end portion to cross other local conductors without coming into contact therewith.
  • An assembly for a telephone substation set including a base block having openings therethrough, and terminal members of substantially the same length passing through the openings, respectively, and held similarly in place therein, each said terminal member having the end portion thereof lying on a given side of the block formed to receive a local inter-terminal conductor, the base block being generally fiat, whereby said end portions lie generally in the same wiring plane and support the said local conductors in such plane, a portion of the block through which one of said terminal members passes being ofiset longitudinally of the terminals to bring the said formed end portion .of the concerned terminal sufiiciently to one side of said wiring plane to permit a local conductor attached thereto to cross other local conductors without coming into contact therewith.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
US659208A 1946-04-03 1946-04-03 Telephone set Expired - Lifetime US2478469A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US659208A US2478469A (en) 1946-04-03 1946-04-03 Telephone set
FR941246D FR941246A (fr) 1946-04-03 1947-01-10 Perfectionnements aux postes téléphoniques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US659208A US2478469A (en) 1946-04-03 1946-04-03 Telephone set

Publications (1)

Publication Number Publication Date
US2478469A true US2478469A (en) 1949-08-09

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US659208A Expired - Lifetime US2478469A (en) 1946-04-03 1946-04-03 Telephone set

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US (1) US2478469A (fr)
FR (1) FR941246A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079517A (en) * 1959-12-16 1963-02-26 Illinois Tool Works Oscillating step-motor
DE1199328B (de) * 1962-09-20 1965-08-26 Siemens Ag Fernsprechstation
US3978375A (en) * 1973-04-20 1976-08-31 Matsushita Electric Industrial Co., Ltd. Wiring unit
US4542264A (en) * 1981-10-07 1985-09-17 Telefonaktiebolaget Lm Ericsson Lead-frame for an electric microphone
US4766520A (en) * 1986-12-05 1988-08-23 Capsonic Group, Inc. Injection molded circuit housing
US5237608A (en) * 1989-01-30 1993-08-17 Siemens Aktiengesellschaft Telephone station having a housing with electrostatic protection

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972232C (de) * 1951-03-23 1959-06-11 Siemens Ag Fernsprechstation

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1717091A (en) * 1929-06-11 Telephone
US1794831A (en) * 1929-01-19 1931-03-03 Lionel Corp Multiple conductor strip and method of making the same
GB344677A (en) * 1930-03-17 1931-03-12 James Percival Laker Improvement in wireless apparatus
US1912653A (en) * 1930-03-21 1933-06-06 Shakeproof Lock Washer Co Method of forming terminal rivets
US1936245A (en) * 1931-07-08 1933-11-21 S H Couch Company Inc Telephone
US2008283A (en) * 1932-10-20 1935-07-16 Bell Telephone Labor Inc Telephone substation apparatus
US2066876A (en) * 1934-07-02 1937-01-05 Rca Corp Wiring system for electrical apparatus
US2199219A (en) * 1938-09-09 1940-04-30 Bell Telephone Labor Inc Terminal block
US2198894A (en) * 1938-06-08 1940-04-30 Werner Eugene Educational apparatus
US2224902A (en) * 1937-06-18 1940-12-17 Western Union Telegraph Co Electrical terminal and switchboard terminal block
US2291808A (en) * 1937-07-23 1942-08-04 Hugh H Eby Inc Socket
US2337692A (en) * 1941-07-17 1943-12-28 United Carr Fastener Corp Electrical socket
US2369541A (en) * 1942-12-16 1945-02-13 Cinch Mfg Corp Radio and like tube socket and contact for the same
US2399753A (en) * 1944-03-13 1946-05-07 Int Standard Electric Corp Multiple connections for electrical apparatus

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1717091A (en) * 1929-06-11 Telephone
US1794831A (en) * 1929-01-19 1931-03-03 Lionel Corp Multiple conductor strip and method of making the same
GB344677A (en) * 1930-03-17 1931-03-12 James Percival Laker Improvement in wireless apparatus
US1912653A (en) * 1930-03-21 1933-06-06 Shakeproof Lock Washer Co Method of forming terminal rivets
US1936245A (en) * 1931-07-08 1933-11-21 S H Couch Company Inc Telephone
US2008283A (en) * 1932-10-20 1935-07-16 Bell Telephone Labor Inc Telephone substation apparatus
US2066876A (en) * 1934-07-02 1937-01-05 Rca Corp Wiring system for electrical apparatus
US2224902A (en) * 1937-06-18 1940-12-17 Western Union Telegraph Co Electrical terminal and switchboard terminal block
US2291808A (en) * 1937-07-23 1942-08-04 Hugh H Eby Inc Socket
US2198894A (en) * 1938-06-08 1940-04-30 Werner Eugene Educational apparatus
US2199219A (en) * 1938-09-09 1940-04-30 Bell Telephone Labor Inc Terminal block
US2337692A (en) * 1941-07-17 1943-12-28 United Carr Fastener Corp Electrical socket
US2369541A (en) * 1942-12-16 1945-02-13 Cinch Mfg Corp Radio and like tube socket and contact for the same
US2399753A (en) * 1944-03-13 1946-05-07 Int Standard Electric Corp Multiple connections for electrical apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079517A (en) * 1959-12-16 1963-02-26 Illinois Tool Works Oscillating step-motor
DE1199328B (de) * 1962-09-20 1965-08-26 Siemens Ag Fernsprechstation
US3978375A (en) * 1973-04-20 1976-08-31 Matsushita Electric Industrial Co., Ltd. Wiring unit
US4542264A (en) * 1981-10-07 1985-09-17 Telefonaktiebolaget Lm Ericsson Lead-frame for an electric microphone
US4766520A (en) * 1986-12-05 1988-08-23 Capsonic Group, Inc. Injection molded circuit housing
US5237608A (en) * 1989-01-30 1993-08-17 Siemens Aktiengesellschaft Telephone station having a housing with electrostatic protection

Also Published As

Publication number Publication date
FR941246A (fr) 1949-01-05

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