GB190415043A - Improvements in Electric Telephonic Transmitters and like Instruments. - Google Patents

Improvements in Electric Telephonic Transmitters and like Instruments.

Info

Publication number
GB190415043A
GB190415043A GB190415043DA GB190415043A GB 190415043 A GB190415043 A GB 190415043A GB 190415043D A GB190415043D A GB 190415043DA GB 190415043 A GB190415043 A GB 190415043A
Authority
GB
United Kingdom
Prior art keywords
flange
clamped
carbon plates
instruments
electric
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
Application number
Inventor
Harris Lake Henry
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.)
Submarine Signal Co
Original Assignee
Submarine Signal 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 Submarine Signal Co filed Critical Submarine Signal Co
Application granted granted Critical
Publication of GB190415043A publication Critical patent/GB190415043A/en
Expired legal-status Critical Current

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Abstract

15,043. Lake, H. H., [Submarine Signal Co.]. July 5. Telephones. - The resistance in a microphone consists of carbon filaments which are contained in separate cylindrical spaces between two carbon plates mounted on mica diaphragms. The filaments c lie between the two carbon plates C<1>, C<2> which are held by the heads c<2>, c<7> of the studs c<1>, c<8>. The stud c<1> is clamped to the mica diaphragm B by the nut c<6> which clamps the flange c<4> of the nut c<3>. The stud c<8> is similarly clamped to the other diaphragm B<1>. The diaphragms B, B<1> are clamped against the flanges b, a<2> of the cylindrical case A by annular nuts b<2>, b<3>, and an insulating- ring D is held against the shoulder formed by the flange a<2> so as to be opposite the space between the carbon plates. The circuit leads c<10>, c<11> are connected to the studs c', c<8> by flange nuts c<12>, c<13>.
GB190415043D 1904-07-05 1904-07-05 Improvements in Electric Telephonic Transmitters and like Instruments. Expired GB190415043A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190415043T 1904-07-05

Publications (1)

Publication Number Publication Date
GB190415043A true GB190415043A (en) 1904-08-25

Family

ID=32165013

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190415043D Expired GB190415043A (en) 1904-07-05 1904-07-05 Improvements in Electric Telephonic Transmitters and like Instruments.

Country Status (1)

Country Link
GB (1) GB190415043A (en)

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