US2762869A - Wall-hook for the vertical suspension of telephone receivers - Google Patents

Wall-hook for the vertical suspension of telephone receivers Download PDF

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Publication number
US2762869A
US2762869A US250636A US25063651A US2762869A US 2762869 A US2762869 A US 2762869A US 250636 A US250636 A US 250636A US 25063651 A US25063651 A US 25063651A US 2762869 A US2762869 A US 2762869A
Authority
US
United States
Prior art keywords
receiver
hook
wall
cup
housing
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
US250636A
Other languages
English (en)
Inventor
Huizenga Foppe Theodorus
Uiterwijk Antonie Hendrikus
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.)
Hartford National Bank and Trust Co
Original Assignee
Hartford National Bank and Trust 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 Hartford National Bank and Trust Co filed Critical Hartford National Bank and Trust Co
Application granted granted Critical
Publication of US2762869A publication Critical patent/US2762869A/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
    • H04M1/0297—Telephone sets adapted to be mounted on a desk or on a wall
    • 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
    • H04M1/04—Supports for telephone transmitters or receivers
    • 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
    • H04M1/04—Supports for telephone transmitters or receivers
    • H04M1/06—Hooks; Cradles
    • H04M1/08—Hooks; Cradles associated with switches operated by the weight of the receiver or hand-set

Definitions

  • This invention relates to wall-hooks for the vertical suspension of telephone receivers, for example, the re DC motor of a telephone handset, and more particularly to hooks having the form of a cup embracing the housing of the receiver.
  • An example of these known hooks is shown at in Fig. l of the accompanying drawing.
  • the handle 1, by which the supported receiver housing 2 is joined to a housing 3 containing the microphone, is accommodated in a recess 4 provided in the wall of the cup 5.
  • cup-shape of such hooks affords the advantage that the receiver may be more readily deposited than with other known hooks. Furthermore, the chance of the receiver being accidentally lifted from the hook due to impacts or shocks is decreased if the receiver enters the supporting cup over a comparatively great depth.
  • a further improvement is obtained if the plunger or the like and the receiver housing exactly fit into one another, so that the plunger is depressed upon upward movement of the receiver with respect to the hook.
  • Wall hooks of known type have an inconvenience which becomes manifest more particularly when the space is limited, such as in motorcars and aircraft, and where impacts against the receiver can not be readily avoided.
  • This inconvenience is the risk of breakage of the hook due to the lever action of the receiver upon lateral pressure thereon. This is made clear by the arrows in Fig. 1, showing the lateral forces exerted upon the receiver upon such impact occurring.
  • the wall-hook according to the invention reduces this risk of breakage.
  • a wall-hook comprising a resilient clamp according to the invention need not embrace the receiver to such extent that a recess for the handle is essential. Even without this recess there is suflicient guarantee against accidental loosening of the receiver. Consequently, in a preferred form, the wall-hook according to the invention comprises as a support for the receiver a circular groove which embraces only the edge of the receiver housing and which, owing to the handle being left free, does not prevent rotation of the supported receiver in the circular groove. Consequently, if a lateral impact occurs, the receiver will perform a vertical oscillation with the centre of the housing as the centre of rotation. This oscillation is damped by 2,762,869 Patented Sept. 11, 1956 "ice:
  • the resilient clamp may, in addition, serve to move the conventional switch which requires to be actuated when the receiver is deposited.
  • Fig. 2 is a cross-sectional view
  • Fig. 3 is an elevation with the receiver deposited.
  • Reference numeral 6 indicates the base of the wallhook, which is secured by means of screws 7 and 8 to a vertical mounting-plate 9.
  • the wall-hook comprises a cup 10 to support the receiver of a telephone set.
  • a cylindrical plunger 11 having secured to it, at the back, a guide pin 12 which extends through a fixed spring-abutment 13.
  • the latter supports a helical spring 14 pressing the plunger 11 outwardly.
  • the movement of the plunger 11 towards the cup 10 is limited by a flange 15 provided on the guide pin 12 and abut-ting against a seat 16.
  • a switch provided behind the spring-abutment l3 and comprising resilient tongues 17 and 18 co-operates with the guide-pin 12.
  • the switch 17, 18 is open when the receiver is removed from the wall-hook.
  • the plunger 11 has to be displaced against the spring force, the guidepin 12 then closing the switch 17, 18.
  • Fig. 3 the wall-hook is shown with the receiver deposited, the receiver being part of a microtelephone 19.
  • the receiver housing 20 is accommodated in the cup 10, whereas the microphone 21 engages the vertical mounting plate 9.
  • the plunger 11 and the housing 20 exactly fit into one another, since the plunger 11 has a part-spherical frontsurface which is accommodated in the usual depression of the receiver housing. Consequently, the plunger must be depressed upon upward movement of the receiver with respect .to the hook. Accidental loosening of the receiver is thus rendered difficult.
  • a cup-shaped bracket attached to an apertured wall member for removably suspending a receiver housing of a telephone handset comprising a spring-actuated clamping member which resiliently engages a part of said re DCver housing thereby urging and clamping another part of said receiver housing in said cup-shaped bracket, a guide pin secured to the rear of said clamping member, said guide pin being adapted to extend through the aperture in said wall member, and a switch activated upon movement of said clamping member and said guide pin.
  • a cup-shaped bracket attached to an apertured wall member for removably suspending a receiver housing of a telephone handset comprising a clamping member, a compression spring biasing a part of said receiver hous ing into engagement with said cup-shaped bracket, 2. guide pin secured to the rear of said clamping member, said guide pin being adapted to extend through the aperture in said wall member, and a switch secured to said Wall member on the opposite side of said cup-shaped bracket and activated upon movement of said guide pin.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Clamps And Clips (AREA)
US250636A 1950-10-18 1951-10-10 Wall-hook for the vertical suspension of telephone receivers Expired - Lifetime US2762869A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL700041X 1950-10-18

Publications (1)

Publication Number Publication Date
US2762869A true US2762869A (en) 1956-09-11

Family

ID=19809068

Family Applications (1)

Application Number Title Priority Date Filing Date
US250636A Expired - Lifetime US2762869A (en) 1950-10-18 1951-10-10 Wall-hook for the vertical suspension of telephone receivers

Country Status (6)

Country Link
US (1) US2762869A (is")
BE (1) BE506456A (is")
DE (1) DE872537C (is")
FR (1) FR1043908A (is")
GB (1) GB700041A (is")
NL (1) NL76556C (is")

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4107481A (en) * 1976-04-13 1978-08-15 The Post Office Telephone instruments

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058561B (de) * 1957-06-15 1959-06-04 Allg Telefon Fabrik Fernsprechapparat, insbesondere Heimfernsprecher fuer zwei Gebrauchslagen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2027549A (en) * 1932-07-18 1936-01-14 Associated Electric Lab Inc Telephone set
US2351125A (en) * 1942-05-25 1944-06-13 Automatic Elect Lab Hand telephone mounting
US2443329A (en) * 1946-11-13 1948-06-15 Sterling G Sears Telephone handset bracket
US2467383A (en) * 1945-03-05 1949-04-19 Roy L Huff Microphone holder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2027549A (en) * 1932-07-18 1936-01-14 Associated Electric Lab Inc Telephone set
US2351125A (en) * 1942-05-25 1944-06-13 Automatic Elect Lab Hand telephone mounting
US2467383A (en) * 1945-03-05 1949-04-19 Roy L Huff Microphone holder
US2443329A (en) * 1946-11-13 1948-06-15 Sterling G Sears Telephone handset bracket

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4107481A (en) * 1976-04-13 1978-08-15 The Post Office Telephone instruments

Also Published As

Publication number Publication date
FR1043908A (fr) 1953-11-12
GB700041A (en) 1953-11-25
NL76556C (is")
BE506456A (is")
DE872537C (de) 1953-04-02

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