US1935912A - Telephone set - Google Patents

Telephone set Download PDF

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Publication number
US1935912A
US1935912A US572460A US57246031A US1935912A US 1935912 A US1935912 A US 1935912A US 572460 A US572460 A US 572460A US 57246031 A US57246031 A US 57246031A US 1935912 A US1935912 A US 1935912A
Authority
US
United States
Prior art keywords
base
cover
cradle
telephone set
screws
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
US572460A
Other languages
English (en)
Inventor
Herbert F Obergfell
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.)
Associated Electric Laboratories Inc
Original Assignee
Associated 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 FR744806D priority Critical patent/FR744806A/fr
Application filed by Associated Electric Laboratories Inc filed Critical Associated Electric Laboratories Inc
Priority to US572460A priority patent/US1935912A/en
Application granted granted Critical
Publication of US1935912A publication Critical patent/US1935912A/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 isparticularly concerned with the provision of a set which may be very economically manufactured and which is readily acces- 5' sible to the maintenance force of an operating company. This is in the main made possible by securing the calling dial of the instrument to the base, instead of securing it to the cover portion as. has heretofore been the practice.
  • Fig. 1 is a front view of the set with the cover removed and with the calling-dial indicated by interrupted lines, so that the parts thereunder may be readily seen.
  • Fig. 2 is a side view of the set with certain portions shown in section.
  • the base and cover portions 1 and 41 are made of insulating material, such as bakelite, for example.
  • the base portion 1 has a groove 2 substantially surrounding it into which a tongue 3, substantially surrounding the cover portion 41, tightly fits when the cover and base portions are as Sild.
  • n 1 In the upper portion of the base 1 cradle ex tensions 4 and 5 are formed.
  • shelves 9 and 10 are formed for supporting the cradle spring assembly 7 and its cover 8, which are held in place in the manner'illustrated in the Obergfell Patent No. 1,738,919, which issued December 10, 1929.
  • a bracket 11 is secured in place by screws 12 and 13. Through the medium of screws 18 and 19 the ringer coil and armature assembly 20 is held.
  • the permanent magnet of the ringer is also held on this bracket by a U shaped clip 21'.
  • the gongs 16 and 1'7 of the ringer are also mounted on the bracket through i the medium of posts 14 and 15. These posts have reduced threaded portions, as illustrated in Fig.
  • the calling device 25 is also secured to the bracket 11 through the medium of extensions 22 and 23 thereof having the blocks 24 and'25' riveted thereto.
  • a pair of posts 26 threaded into the calling device base slide .into the holes in the, blocks 24 and 25', and the calling device is then.
  • a depressed portion of the base 1 provides a space for the condenser 36, adjacent which is located the induction coil 37.
  • the condenser and induc- 5 tion coil are held in place by screws 38 and 39 which passthrough the spool heads of the induction coil and. are threaded into appropriate inserts in the base portion 1.
  • the same may be mounted upon any vertical surface by use of screws passing through holes in the base provided for this purpose.
  • the cover portion 41 of the assembly which has the two front posts 6 of the cradle portion of the set formed therein, may now be properly positioned with respect to the base, and is held in place by screws passing through the cover and threaded into the openings 29 and 30 of the previously described bracket 11.
  • the calling dial although fixed to the base of the set, protrudes through an appropriate opening in the cover and the set is now completely assembled and installed and ready for service.
  • this cover since none of the apparatus of the set is in any way supported by the cover portion 41, this cover may be removed at any time without disturbing any of the apparatus. An inspection of the apparatus may, therefore, very readily be made without in any way disturbing the apparatus or wiring of the set.
  • a 100. ringer box comprising a moulded base portion which includes the base and one pair of upwardly extending cradle elements, and. comprising a moulded cover portion which includes the other pair of upwardly extending cradle elements.
  • a ringer box comprising a moulded base portion which includes the ends, one side and two of the upwardly extending elements of the cradle assembly, and a cover portion which includes the moulded base portion, switchhook springs and a 7 calling device supported on the base portion, said base portion having a part forming a part of the cradle element, a cover portion for covering the base including the remaining parts of the cradle portion, said cover and base when secured together forming a complete cradle support for a hand telephone.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
US572460A 1931-11-02 1931-11-02 Telephone set Expired - Lifetime US1935912A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR744806D FR744806A (enrdf_load_stackoverflow) 1931-11-02
US572460A US1935912A (en) 1931-11-02 1931-11-02 Telephone set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US572460A US1935912A (en) 1931-11-02 1931-11-02 Telephone set

Publications (1)

Publication Number Publication Date
US1935912A true US1935912A (en) 1933-11-21

Family

ID=24287895

Family Applications (1)

Application Number Title Priority Date Filing Date
US572460A Expired - Lifetime US1935912A (en) 1931-11-02 1931-11-02 Telephone set

Country Status (2)

Country Link
US (1) US1935912A (enrdf_load_stackoverflow)
FR (1) FR744806A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3532836A (en) * 1968-08-21 1970-10-06 Robert M Rood Auxiliary telephone support

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3532836A (en) * 1968-08-21 1970-10-06 Robert M Rood Auxiliary telephone support

Also Published As

Publication number Publication date
FR744806A (enrdf_load_stackoverflow) 1933-04-27

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