US2430276A - Desk telephone lifting device - Google Patents

Desk telephone lifting device Download PDF

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Publication number
US2430276A
US2430276A US628558A US62855845A US2430276A US 2430276 A US2430276 A US 2430276A US 628558 A US628558 A US 628558A US 62855845 A US62855845 A US 62855845A US 2430276 A US2430276 A US 2430276A
Authority
US
United States
Prior art keywords
wings
handset
desk
telephone
cradle
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
US628558A
Other languages
English (en)
Inventor
Charles M Candy
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.)
Automatic Electric Laboratories Inc
Original Assignee
Automatic Electric Laboratories Inc
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
Priority to BE469126D priority Critical patent/BE469126A/xx
Application filed by Automatic Electric Laboratories Inc filed Critical Automatic Electric Laboratories Inc
Priority to US628558A priority patent/US2430276A/en
Application granted granted Critical
Publication of US2430276A publication Critical patent/US2430276A/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

Definitions

  • the present invention relates in general .to telephone sets but .more particularly to an .improved desk telephoneof .the cradle type.
  • the object of the invention is to improve the construction of desk telephone lifting devices of the types shown and claimed in Patent .No. 2,244,918, issued May .9, .1938, to .H. Obergfell; and Patent No. 2,096,045, issued .March .27., .1935, to J, J. Kuhn .et al.
  • Fig. 1 is a perspective view of the desk telephone set with the handset removed from :the cradle;
  • Fig. 2 is a top view of a combined imounting block and lifting plate
  • Fig. 3 is a side view of the lifting plate, as seen from the left of Fig. 2;
  • Fi 4 is another side view of the liftingplate, as seen from the right of Fig. 2,;
  • Fig. 5 is a rear view of the liftingplateas seen from the bottomof Fig. 2;
  • Fig. 6 is a'bottoin view of the lifting plate, as seen from the bottom of Fig.5.
  • the casing Iii of the desk telephone is formed in one piece of some suitable plastic insulating compound and has a general shape roughly corresponding to a truncated pyramid thereby enabling ease in moulding.
  • the base portion of the casing comprises ten sides or skirts H which extend substantially vertical for a short distance at which point the front, rear, and side surfaces slope inwardly.
  • the two side surfaces 12 and i3 slope upwardly and inwardly from the skirt side-portion only a short distance at which point both the side surfaces extend substantially vertical.
  • the front surface I l slopes upwardly and inwardly at an angle of substantially 40 degrees until it is rounded in a substantially horizontal top portion [5 which extends .a short distance to the rear where it merges into the rear surface it.
  • Ihe rear surface It extending from the rear skirts i l to where it merges with the top portion 15, slopes upwardly and inwardly.
  • the slope of the rear surface 16 is a perfect arc of a circle having substantially a nine inch radius.
  • the two side surfaces form side walls IT and 18 which extend from the top portion it near the front to the rear skirts H, thereby forming a channel comprising the two inside surfaces l9 and 20 of the side walls and the curved rear surface 16.
  • Each side wall at its highest point terminates ina pair of spaced pillars 2
  • a plunger 22 is movably mounted in the space between the two pillars in each side wall. These plungers are provided for operating the switchhook springs (not shown) whenever the handset is removed or replaced on the cradle,
  • a base plate 23 having a rubber ring 26 is secured to the bottom of the cover .by means of screws which screw into threaded inserts in the cover.
  • the channel formed by the curved rear surface It and the inside surfaces I9 and .25! of the two side walls l1 and I8 starts at the rear and gradually deepens. Its greatest depth being in a vertical plane passing through the two rear pillars 2
  • Mounting blocks 32 are provided between each pair of pillars 2
  • a hole 31 is provided in each mounting block 32 for the plungers 22 which operate the cradle switchhook springs (not shown).
  • each of the mounting blocks 32 is provided with an inwardly extending wing 33.
  • the tips of the two wings are separated by a distance somewhat greater than a fingers width.
  • the width of the channel between the two side walls I! and I8 is sufiicient to readily accommodate three fingers.
  • the middle one of three fingers inserted in the channel may be used to grip the handset or the outer two fingers may be used to lift the desk set by means of the lifting wings 33.
  • a rounded ridge is formed at the bottom of the innermost edge of each wing and the bottom surfaces of the wings slope upwardly toward the front of the desk set to aid in obtaining a firm hold thereon.
  • the forward portions of the wings 33 are formed in an arcuate shape to provide clearance, between the forward edges of the wings and the sloping surface 1-6 of the casing, for the telephone cord which may be allowed to fall between the sidewalls when the handset is replaced on its cradle. The cord is thus prevented from interfering with proper operation of the plungers Or with proper grasping f the handset by a subscriber.
  • a casing formed in one piece comprising side walls each having a pair of spaced pillars forming the telephone handset supports, a rear inwardly and upwardly sloping sur face extending between said side walls and merging into a top surface, said rear surface and side walls defining a channel into which three fingers may be thrust to lift the handset or the desk set, and a wing extending from each of said side walls between said pair of spaced pillars into said channel, the innermost ends of said wings being separated by at least a fingers width, whereby the middle finger may be used to grip the underside of the handset between said wings to raise it, or the outer fingers may be used to lift the desk set by means of said wings.
  • a molded casing comprising side walls each having a pair of spaced pillars forming the telephone handset supports, a rear inwardly and upwardly sloping surface extending between said side walls and merging into a top surface, said rear surface and side walls defining a channel into which several fingers may be thrust to lift the handset or the desk set, a wing extending from each of said side walls between said pair of spaced pillars into said channel, the innermost edges of said wings being separated by at least a fingers width whereby one finger may be extended under the handset between said wings to raise it, or two fingers may be extended beneath said wings to lift the desk set, the bottom surfaces of said wings sloping upwardly towards the front of the desk set and having 4 a rounded ridge formed along the innermost edges thereof to aid in obtaining a firm grip thereon.
  • a casing having spaced side walls, each side wall having a pair of spaced pillars at its upper extremity forming the cradle support for the telephone handset, a mounting block positioned between each pair of pillars forming the base portion of the cradle support, a wing extending from each of said mounting blocks between said spaced pillars into the space between said side walls, the innermost edges of said wings being separated by at least a fingers width whereby one finger may be extended beneath the telephone handset between said wings to raise it from the cradle support, or one finger may be extended beneath each of the wings to lift the desk set.
  • a molded casing comprising side walls each having a pair of spaced pillars forming the cradle support for the telephone handset, a rear inwardly and upwardly sloping surface extending between said side walls and merging into a top surface along a line extending between the front pillars of the side walls, a mounting block positioned between each pair of pillars forming the base portion of the cradle support, said rear surface and side walls defining a channel into which three fingers may be thrust to lift the handset or the desk set, and a wing extending from each of said mounting blocks between said pair of spaced pillars into said channel slightly below the bottom surface of the cradle support, the innermost edges of said wings being separated by at least a fingers width, whereby the middle finger may be used to grip the underside of the handset between said wings to raise it from the cradle support, or the outer fingers may be used to lift the desk set by means of said wings.
  • a desk telephone as claimed in claim 4 wherein the front edges of said wings are arcuate in shape to provide clearance for the telephone cord between the wings and the rear surface at the point where it merges into the top surface, and the bottom surfaces of each of said wings slope upwardly towards the front of the desk set and have a rounded ridge formed along their innermost edges to aid in obtaining a firm grip thereon.
  • a pedestal having a cradle portion for supporting the telephone handset, a fingers receiving recess in said pedestal beneath the center of the cradle portion, a lifting wing extending from the pedestal over a portion of the top of said recess and an open portion over the remaining portion of the top of said recess, whereby one or more fingers may be thrust into said recess beneath the covered portion thereof to lift the pedestal by means of said wing, or beneath the open portion thereof to grip the underside of the telephone handset to raise it from the cradle.
  • a pedestal having a cradle portion for supporting the telephone handset, a fingers receiving recess in said pedestal beneath the center of the cradle portion, lifting means extending over portions of the top of said recess to permit lifting of the pedestal, said lifting means having a cut out portion to permit at least one finger to be extended beneath the underside of the telephone handset to obtain a firm grip thereon prior to raising it from the cradle.
  • a pedestal having a cradle portion for supporting the telephone hand- 5 6 set, a fingers receiving recess in said pedestal beneath the center of the cradle portion, and a CES CI D pair of lifting wings each extending over a portion of the top of said recess on either side thereof, the adjacent edges of said lifting wings 5

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
US628558A 1945-11-14 1945-11-14 Desk telephone lifting device Expired - Lifetime US2430276A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE469126D BE469126A (ja) 1945-11-14
US628558A US2430276A (en) 1945-11-14 1945-11-14 Desk telephone lifting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US628558A US2430276A (en) 1945-11-14 1945-11-14 Desk telephone lifting device

Publications (1)

Publication Number Publication Date
US2430276A true US2430276A (en) 1947-11-04

Family

ID=24519408

Family Applications (1)

Application Number Title Priority Date Filing Date
US628558A Expired - Lifetime US2430276A (en) 1945-11-14 1945-11-14 Desk telephone lifting device

Country Status (2)

Country Link
US (1) US2430276A (ja)
BE (1) BE469126A (ja)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2096046A (en) * 1935-03-27 1937-10-19 Bell Telephone Labor Inc Support for telephones
US2244918A (en) * 1938-07-09 1941-06-10 Associated Electric Lab Inc Desk telephone set
US2398850A (en) * 1944-03-25 1946-04-23 Amanda Obergfell Desk telephone set

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2096046A (en) * 1935-03-27 1937-10-19 Bell Telephone Labor Inc Support for telephones
US2244918A (en) * 1938-07-09 1941-06-10 Associated Electric Lab Inc Desk telephone set
US2398850A (en) * 1944-03-25 1946-04-23 Amanda Obergfell Desk telephone set

Also Published As

Publication number Publication date
BE469126A (ja)

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