GB191515958A - Improvements in or relating to Talking Machines. - Google Patents

Improvements in or relating to Talking Machines.

Info

Publication number
GB191515958A
GB191515958A GB191515958DA GB191515958A GB 191515958 A GB191515958 A GB 191515958A GB 191515958D A GB191515958D A GB 191515958DA GB 191515958 A GB191515958 A GB 191515958A
Authority
GB
United Kingdom
Prior art keywords
valves
lever
cord
pull
machine
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
James Hines
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB191515958A publication Critical patent/GB191515958A/en
Expired legal-status Critical Current

Links

Landscapes

  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Reciprocating Pumps (AREA)

Abstract

15,958. Hines, J. Nov. 12. Sound-magnifying appliances.-In a talking- machine having valves at the base of the horn, the valves are operated to close by means of a pull or by pneumatic means controlled externally to the machine, the return motion of the valves being controlled by spring, or weight action. Fig. 2 shows a pull-cord 9 acting to raise the valves by a bell-crank lever 8 interacting with a lever 10. A slide-rod may be employed, leading to the outside of the case, where the cord is attached. Pneumatic bellows or a piston connected by a tube to an external push-piston may be coupled to the lever 8, a return spring forcing the bellows to collapse.
GB191515958D 1915-11-12 1915-11-12 Improvements in or relating to Talking Machines. Expired GB191515958A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191515958T 1915-11-12

Publications (1)

Publication Number Publication Date
GB191515958A true GB191515958A (en) 1916-04-13

Family

ID=34361912

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191515958D Expired GB191515958A (en) 1915-11-12 1915-11-12 Improvements in or relating to Talking Machines.

Country Status (1)

Country Link
GB (1) GB191515958A (en)

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