US2351808A - Automatic telephone system - Google Patents

Automatic telephone system Download PDF

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Publication number
US2351808A
US2351808A US412103A US41210341A US2351808A US 2351808 A US2351808 A US 2351808A US 412103 A US412103 A US 412103A US 41210341 A US41210341 A US 41210341A US 2351808 A US2351808 A US 2351808A
Authority
US
United States
Prior art keywords
telephone system
automatic telephone
eaton
june
sheets
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
US412103A
Inventor
George R Eaton
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
Priority to US400031A priority Critical patent/US2321588A/en
Application filed by Kellogg Switchboard and Supply Co filed Critical Kellogg Switchboard and Supply Co
Priority to US412103A priority patent/US2351808A/en
Application granted granted Critical
Publication of US2351808A publication Critical patent/US2351808A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages

Description

June 20, 1944. G. R. EATON 2,351,808
AUTOMATIC TELEPHONE SYSTEM Jue 20, 1944. G. R. EATON 2,351,808
AUTOMATIC TELEPHONE SYSTEM Filed Sept. 24, 1941 51 Sheets-Sheet 2 F/S 7' HUNDRED rE/v PRIMARES E57' .E Faf 7m/m1' ITT/Sarg EH EW? June 20, 1944. G. R. EATON 2,351808 AUTOMATIC TELEPHONE SYSTEM Filed Sept. 24, 1941 31 Sheets-Sheet 3 Flai 23a-"275 June 20, 1 944.
G. R. EATON 2,351,808
AUTOMATIC TELEPHONE SYSTEM Filed Sept. 24, 1941 5l Sheets-Sheet 4 seco/vn HUND/PED TEN PIP/NA /ES F/ VE SECONDAR/ES June 20, 1944. G, R, EATON 2,351,808
AUTOMATIC TELEPHONE SYSTEM Filed Sept. 24, 1941 31 Sheets-Sheet 5 DSI/ .sec 2-1 520! Saez-J 530?! .7271/527 702". Z'r'earge Em June 20, 1944. G. R. EATON AUTOMATIC TELEPHONE SYSTEM June 20, 1944. G. R. EATON 2,351,808
A AUTOMATIC TELEPHONE SYSTEM Filed Sept. 24, 1941 51 Sheets-Sheet 8 Fl-,7. 5 22u/@WEET 225m? we 5% June 20, 1944. G, R, EATON 2,351,808
AUTOMATIC TELEPHONE SYSTEM Filed Sept. 24, 1941 51 Sheets-Sheet 9 June 20, 1944. G. R. EATON 2,351,808
AUTOMATIC TELEPHONE sYsTEM Filed Sept. 24, 1941 31 Sheets-Sheet 10 Eg' .7 f5.7/
June 20, 1944. G, R., EATON 2,351,808
AUTOMATIC TELEPHONE SYSTEM Filed Sept. 24, 1941 3l Sheets-Sheet 11 s cou/MMA @0L z//V/v- June 20, 1944. G, R, EATON 2,351,808
AUTOMATIC TELEPHONE SYSTEM Filed Sept. 24, 1941 3l Sheets-Sheet 12 /sc /so n, C04 wmf-c cm wmf- June 20, 1944. G. R. EATON 2,351,808
AUTOMATIC TELEPHONE SYSTEM Filed Sept. 24, 1941 31 Sheets-Sheet 13 l l l Hlm! Y i I i l i i SECONDA/ w55 # 2, 3 Mp4 l mm W :e l
SECONDARY *5 l l @LSE TE S7.' Pl/L SE CHANGE OVER a jin/mir. E'E'Ufge 557-027 June 20, 1944. G, R, EATON 2,351,808
AUTOMATIC TELEPHONE SYSTEM Filed Sept. 24, 1941 51 Sheets-Sheet 14 June 20, 1944. G. R. EAToN 2,351,808
AUTOMATIC TELEPHONE SYSTEM Filed Sept. 24, 1941 51 Sheets-Sheet l5 June 20, 1944. G. R. EATON 2,351,808
AUTOMATIC TELEPHONE SYSTEM Filed Sept. 24, 1941 31 Sheets-Sheet 16 g I/ /m SELECTOR S/O 7m/Wr.' 550227 EH. 5572727 www 31 Sheets-Sheet 17 DUN/7) SELECTOR June 20, 1944. G R EATQN AUTOMATIC TELEPHONE SYSTEM Filed Sept. 24, 1941 w Mw ooo o .l 0 NT r T T 2 F U 5 E 7,? @www e L. NNW E s IJ.. IJ w H Y MZ v @om FW H, @Af /M u W of. s m C E o W s Mmm 5 s o 7 wrm Fw., u M s H2 l5 7. l Il, L W F I ,A lm 5 E 5 F M W June 20, 1944.
G. R. EATON AUTOMATIC TELEPHONE SYSTEM Filed Sept. 24, 1941 s/c/ ssc 31 Sheets-Sheet 18 l SELS/-CTOR /Zl SELECTOR `/c/-f SID L] ,c FROM HUNDREDS HUNDREDS 7'0 /O l TO /O FEO/V HUNDREDS June 20, 1944.
G. R. EATON AUTOMATIC TELEPHONE SYSTEM Filed Sept. 24, 1941 31 Sheets-Sheet 19 w N F T0 HUNDREDS T0 HUNDREDS 2 TO IO June 20, 1944. G. R. EATON 2,351,808
AUTOMATIC TELEPHONE SYSTEM Filed Sept. 24. 1941 31 Sheets-Sheet 2O T0 HUNDREDS 727mm Zi'ergemn
US412103A 1941-06-27 1941-09-24 Automatic telephone system Expired - Lifetime US2351808A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US400031A US2321588A (en) 1941-06-27 1941-06-27 Automatic telephone system
US412103A US2351808A (en) 1941-06-27 1941-09-24 Automatic telephone system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US400031A US2321588A (en) 1941-06-27 1941-06-27 Automatic telephone system
US412103A US2351808A (en) 1941-06-27 1941-09-24 Automatic telephone system

Publications (1)

Publication Number Publication Date
US2351808A true US2351808A (en) 1944-06-20

Family

ID=27016877

Family Applications (2)

Application Number Title Priority Date Filing Date
US400031A Expired - Lifetime US2321588A (en) 1941-06-27 1941-06-27 Automatic telephone system
US412103A Expired - Lifetime US2351808A (en) 1941-06-27 1941-09-24 Automatic telephone system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US400031A Expired - Lifetime US2321588A (en) 1941-06-27 1941-06-27 Automatic telephone system

Country Status (1)

Country Link
US (2) US2321588A (en)

Also Published As

Publication number Publication date
US2321588A (en) 1943-06-15

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