US2419388A - Telephone handset - Google Patents

Telephone handset Download PDF

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Publication number
US2419388A
US2419388A US415130A US41513041A US2419388A US 2419388 A US2419388 A US 2419388A US 415130 A US415130 A US 415130A US 41513041 A US41513041 A US 41513041A US 2419388 A US2419388 A US 2419388A
Authority
US
United States
Prior art keywords
instrument
base
upright
dial
signalling
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
US415130A
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English (en)
Inventor
Blomberg Knut Hugo
Lysell Ralph Ake Gosta
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of US2419388A publication Critical patent/US2419388A/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
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S220/00—Receptacles
    • Y10S220/13—Odd-shaped

Definitions

  • This invention relates to a telephone instrument'ofa new type.
  • Hitherto used telephone instruments ofa modern design consist of a handsetla'nd an instrument casemounted on the wall or placed on a table, containing the remaining devices required for speaking and signalling, like induction coil, dial, signalling bell,etc., provided with aswitch hookfor theplacing of the handset with hereto pertaining device'to enable switching from speaking t'o'si'gnalling position.
  • Theitelephone instrumentaccording to the-invention is mouldedin such a way thatthe case forms an upright,the upper end'of which supports the receiver and whose lowerend widens into a base having a comparatively large supporting "surface, within which the microphone and :the'remainin'g devices are fitted.
  • The'case is preferably made of pressed material or of pressed die-cast metal.
  • The, swit'chhook key is arranged in the bottom 'of'the instrument and "is ac'tuated'bythe weight of the instrument when this 'isplaced on the table, whereby switching "from speaking to signallingposition is effected.
  • Fig. '1 shows a' perspectiverepresentation of an automatic instrument
  • Fig. 2 ' shows the'instru mentfrom the side
  • Fig. 3 shows a vertical section of the same
  • Figs. 4 and 5 show how to hold the instrument while'dialing and when callingpFig
  • 6 shows'the instrument in resting position
  • Fig. 7 shows a "wall terminal box formed as-a shelf for the instrument 'and'Figs. '8, 9 and '10 show different ways 'of placing the in strumenton the'same.
  • the'rinstrument consists-of a'case i made of pressed material. It is-made in form of an upright '2, the upperpa'rt of which is developed into or supports a box '3, in-whic'h a receiver of some ordinaryylight type is arranged behind an .ear' cap 4. thebotto'm the upright widens into a base *5-,-whichf-orms acomparatively large sup porting surface.
  • the frontof the base isotround form and the rear part is rectangular.
  • the base as well as an appropriate part of the upright is hollow and forms a mantle, in which microphone, switch hook key, dial, etc., are fitted.
  • These devices are preferably mounted on a bottom plate 6, fastened in the downward opening of the case.
  • the border of the bottom plate is surrounded by a rubber band I which when the plate is screwed in the case, is pressed down between the lower rim of the case and the plate.
  • This band prevents the instrument from sliding on the table and also prevents the making of marks on the table, if the instrument should be put aside obliquely.
  • the capsule transmitter 8 is fitted above the front part in a, holder 9, in such a way that around the periphery it lies against the inside of the case as shown by Fig. 3.
  • the case is provided with appropriate sound openings [0, leading into the air H chamber formed between the capsule transmitter and the microphone.
  • the sound openings [0 are formed in the front part of the base 5 and'the ear cap 4 also faces forwardly so that it may be held against the ear when the openings are loc'ated'in' proximity to the mouth during the use of the instrument.
  • the switch hook key is fitted in the bottom plate 6 and consists of a spring actuated press button H, which projects somewhat from the bottom.
  • the press button is pressed in by the weight of the instrument, until the instrument is resting on the rubber band 1. Then the contact springs 12 are acted upon and switch over the instrument from speaking to signalling position.
  • the press button has a rounded head which enablesit to be pressed in and not aside, in case the press button should knock against the edge of the table or the like when the instrument is placed thereon, which might endanger the safe functioning of the instrument.
  • the dial must have a comparatively large diameter to accommodate finger holes of a sufficient size, and as, on the other hand, rather a large supporting surface for the instrument is required, the latter requirement may be fulfilled by the said arrangement, at the same time as the base of the instrument will obtain a much smaller and more elegant form than when the dial is placed above the same.
  • the surface of the press button head is comparatively wide and it is placed somewhere about the centre in the bottom, from where the distance'to the table can never exceed half the distance from table and edge.
  • the switch hook key instead of being. provided with a press button, can have an appropriately fitted compression device, for instance consisting of a plate underneath the front part of the bottom plate or a frame surrounding the bottom plate, which diminishes the risk of its not being acted upon.
  • the entire bottom plate may also be made mobile and act upon the contact springs, when pressed against the case.
  • the dial I3 is fitted in the bottom plate with the holes turned downwards. When the instrument is placed on the table, the dial thus becomes invisible and is well protected. Practically, this is of great advantage.
  • the dial is the part which is most easily worn out and whose exterior is -lower part of. the instrument.
  • the telephone instrument cord M which connects theinstrument with the wall terminal box, is connected to the bottom plate and passes through an appropriately placed hole [5 in the case. All the devices and terminals with the exception of the receiver are thus mounted on the bottom plate, whereby an exceedingly simple and practical mounting and connection is effected. From the dial there are two wires leading up to the receiver.
  • the upright 2 joins the base 5 forwardly of the rear end thereof and the shoulder l6 thus defined extends from side to side of the base and is sloped downwardly and rearwardly. Shoulder-like portions lfia continuing forwardly on the base fromthe shoulder l6 are disposed on opposite sides of the upright and this arrangement conforms closely to the shape of the cupped hand. With the instrument supported in normal upright position, the hand is applied in the position shown in Fig.
  • the dial comes into a good operating position for dialling with the right hand, when the instrument is thus inclined backwards.
  • thecaller has dialed the number required on thedial, he lifts the receiver to his earwithout"altering-the position of the.1hand,: whereby1the:mouthpiece. comes into a convenient distance from the mouth:
  • the devices which are not to be operated by the caller viz. induction coil, transformer, signalling bell, etc., may appropriately be placed in the wall terminal box of the instrument.
  • the latter should preferably be made as a shelf, where the instrument may be placed as shown in Figs. '7 and 8.
  • the devices are mounted on a frame, which should be screwed on to the wall and provided with terminals to which the incoming line and the instrument cord are connected. Over this frame the case 18 is slipped in shape of a shelf, preferably made of pressed material. As the instrument is provided with a rubber edge at the bottom there is no danger of its falling down from the shelf. If one should happen to knock against the instrument, it is prevented from falling as the flange l9 stays the inner part of the base, when the same is lifted.
  • the instrument may be hung by the receiver lid in the reces 20 as shown by Fig. 9, whereby the switch hook key will not be acted upon and no clearing signal is sent to the exchange.
  • the shelf may be provided with a special holder 2! as shown by Fig. 10. There the instrument is placed upside down, whereby dialling may be made with one hand only if necessary.
  • the same instrument may be used both as a table and a wall instrument, and two different types of instruments are not any longer necessary.
  • the instrument is consequently a universal instrument which, when required, may be used as a table instrument, but when an unoccupied table is desired, as a wall instrument, and so forth.
  • the instrument is, however, most convenient as an office, domestic instrument or the like as it requires but little space on the table.
  • the push button'operated key setshou-ldbe mounted at thesame place as thedialiin the-automaticinstrument, whereby an exceedingly simple and efiicient instrument will be obtained.
  • a small magneto may be inserted into the base part, which, for instance, is actuated by a controlling device fitted on the upper side of the instrument.
  • the instrument For a long time there has been a wish to obtain a telephone instrument which could be placed on the table in a position suitable for speaking and hearing, in order to have both hands free during the call.
  • the instrument is very well adapted as it is normally of the standing type.
  • the instrument may, for example, be provided with a supporting device which is fitted into the front part of the bottom plate and usually rests recessed into the same. When necessary, the supporting device is lowered, at which the instrument comes to rest thereon, and on the rear edge of the bottom plate, whereby the bottom plate is raised far enough up from the table so that the press button remains unpressed, receiver and microphone at the same time standing in a suitable position for hearing and speaking.
  • a special stand may also be designed in which the instrument is placed and being so made that the press button remains unpressed.
  • a telephone instrument comprising an upright, a base carried by and normally supporting the upright in an erect position, a, forwardly facing ear piece at the upper end of said upright, a mouthpiece in the front part of said base, a switch in said base, a signalling device mounted in and accessible from underneath said base, a rear shoulder on the back of said base at its juncture with the upright forming a rest surface for the inside of the hand, and side shoulders continuing forwardly from the rear shoulder along the base onopposite sides of the upright, said shoulders and the contiguous portions of the base and upright constituting a hand grip for lifting and holding the instrument in various positions for signalling and talking, said signalling device being constituted by a dial and said switch being arranged centrally of the dial.
  • a telephone instrument comprising an upright, a base carried by and normally supporting the upright in an erect position, a forwardly facing ear piece at the upper end of said upright, a mouthpiece in the front part of said base, a switch in said base, a signalling device mounted in and accessible from underneath said base, a rear shoulder on the back of said base at its juncture with the upright, and side shoulders continuing forwardly from the rear shoulder along the base on opposite sides of the upright, said shoulders and the contiguous portions of the base and upright constituting a hand grip for liftingright having a fiat surface lying parallel to said 5 edge whereby the instrument may be set in position on'a support to afiord access to said signalling device.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
US415130A 1941-07-10 1941-10-15 Telephone handset Expired - Lifetime US2419388A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE267007X 1941-07-10

Publications (1)

Publication Number Publication Date
US2419388A true US2419388A (en) 1947-04-22

Family

ID=20306643

Family Applications (1)

Application Number Title Priority Date Filing Date
US415130A Expired - Lifetime US2419388A (en) 1941-07-10 1941-10-15 Telephone handset

Country Status (5)

Country Link
US (1) US2419388A (de)
CH (1) CH267007A (de)
FR (1) FR904808A (de)
GB (1) GB612005A (de)
NL (1) NL85027C (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941923C (de) * 1951-01-25 1956-04-19 Ericsson Telefon Ab L M Telephonapparat
US2918539A (en) * 1956-02-21 1959-12-22 Ericsson Telefon Ab L M Telephone instruments of the standing hand set type
US2928908A (en) * 1957-02-13 1960-03-15 Sud Atlas Werke G M B H Microphone with an adjustable attenuator
US3064081A (en) * 1958-01-18 1962-11-13 Tjeder Lars-Axel Communication call apparatus
US3562447A (en) * 1967-10-06 1971-02-09 Ericsson Telefon Ab L M Hook switch for one-piece standing telephone
US3760122A (en) * 1970-02-27 1973-09-18 K Blomberg Switching device for telephone instruments
US4068102A (en) * 1975-11-28 1978-01-10 Telefonaktiebolaget L M Ericsson Wall-stand for telephone sets of standing handset type
USD894862S1 (en) * 2018-10-18 2020-09-01 Meizhou Guo Wei Electronics Co. Ltd. Communications equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1941237A (en) * 1930-06-08 1933-12-26 Siemens Ag Hand telephone
US1944701A (en) * 1931-07-09 1934-01-23 Siemens Ag Telephone set
US2183744A (en) * 1936-01-13 1939-12-19 Jesse P Hubbell Telephone instrument

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1941237A (en) * 1930-06-08 1933-12-26 Siemens Ag Hand telephone
US1944701A (en) * 1931-07-09 1934-01-23 Siemens Ag Telephone set
US2183744A (en) * 1936-01-13 1939-12-19 Jesse P Hubbell Telephone instrument

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941923C (de) * 1951-01-25 1956-04-19 Ericsson Telefon Ab L M Telephonapparat
US2822432A (en) * 1951-01-25 1958-02-04 Ericsson Telefon Ab L M Casing for telephone instruments
US2918539A (en) * 1956-02-21 1959-12-22 Ericsson Telefon Ab L M Telephone instruments of the standing hand set type
US2928908A (en) * 1957-02-13 1960-03-15 Sud Atlas Werke G M B H Microphone with an adjustable attenuator
US3064081A (en) * 1958-01-18 1962-11-13 Tjeder Lars-Axel Communication call apparatus
US3562447A (en) * 1967-10-06 1971-02-09 Ericsson Telefon Ab L M Hook switch for one-piece standing telephone
US3760122A (en) * 1970-02-27 1973-09-18 K Blomberg Switching device for telephone instruments
US4068102A (en) * 1975-11-28 1978-01-10 Telefonaktiebolaget L M Ericsson Wall-stand for telephone sets of standing handset type
USD894862S1 (en) * 2018-10-18 2020-09-01 Meizhou Guo Wei Electronics Co. Ltd. Communications equipment

Also Published As

Publication number Publication date
GB612005A (en) 1948-11-08
CH267007A (de) 1950-02-28
NL85027C (de)
FR904808A (fr) 1945-11-16

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