[go: up one dir, main page]

DE419920C - Telephone with easily exchangeable coil - Google Patents

Telephone with easily exchangeable coil

Info

Publication number
DE419920C
DE419920C DEN22604D DEN0022604D DE419920C DE 419920 C DE419920 C DE 419920C DE N22604 D DEN22604 D DE N22604D DE N0022604 D DEN0022604 D DE N0022604D DE 419920 C DE419920 C DE 419920C
Authority
DE
Germany
Prior art keywords
coil
telephone
easily exchangeable
magnet
spring
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
DEN22604D
Other languages
German (de)
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.)
Neufeldt & Kuhnke Fa
Original Assignee
Neufeldt & Kuhnke Fa
Publication date
Priority to DEN22604D priority Critical patent/DE419920C/en
Application granted granted Critical
Publication of DE419920C publication Critical patent/DE419920C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
    • H04R13/02—Telephone receivers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Coils Or Transformers For Communication (AREA)

Description

Es ist bekannt, Telephonspulen auf ihrem Magnetkern durch besondere Sperrstücke zu befestigen, um die Spulen jederzeit wieder herausnehmen und auswechseln zu können. Aufgabe der Erfindung war es, das Auswechseln der Spulen möglichst einfach zu gestalten. Diese Aufgabe ist gemäß der Erfindung dadurch gelöst worden, daß die Spule durch einen senkrecht zur Richtung der Spulenbohrung wirkenden Druck einer Feder auf dem Magneten festgehalten wird. Eine solche Feder läßt sich besonders leicht in dem beschränkten Raum eines Telephons unterbringen. Sie hat den Vorteil, daß sie ein-It is known to use special locking pieces to lock telephone coils on their magnetic core so that the bobbins can be removed and replaced at any time. The object of the invention was to make the exchange of the coils as simple as possible. This object is according to the invention been solved in that the coil by a perpendicular to the direction of the coil bore acting pressure of a spring on the magnet is held. Such a spring is particularly easy in place in the limited space of a telephone. It has the advantage that it

t5 gebaut werden kann, bevor noch die Spule eingesetzt ist, denn die Spule kann an der gespannten Feder entlang auf den für sie bestimmten Magnetpol geschoben werden.t5 can be built before even the coil is inserted, because the coil can along the tensioned spring on the for it specific magnetic pole are pushed.

Ein Ausführungsbeispiel der Erfindung istOne embodiment of the invention is

ao in der Zeichnung dargestellt, ι ist eine dünne Blattfeder, welche den Magneten 2 umfaßt und deren Enden sich an den mittleren Pol des dreipoligen Magneten anlegen. Die vorderen Enden der Blattfeder ι sind so ausgebildet, daß die Spule 3 mit ihrer Bohrung 4 leicht auf die Blattfeder aufgeschoben, aber nur unter Anwendung eines verhältnismäßig kräftigen Zuges wieder davon entfernt werden kann.ao shown in the drawing, ι is a thin one Leaf spring, which includes the magnet 2 and the ends of which are attached to the central pole of the three-pole magnet. The front ends of the leaf spring ι are designed so that the coil 3 with its bore 4 is easily pushed onto the leaf spring, but can only be removed from it again with the use of a relatively strong pull can.

Die Spule kann also mit einem Handgriff in die Kapsel eingesetzt und ebenso mit einem Handgriff wieder aus der Kapsel ausgebaut werden.The coil can be inserted into the capsule with one movement and also with one Handle can be removed from the capsule again.

Claims (2)

Patent-Ansprüche:Patent Claims: 1. Telephon mit leicht auswechselbarer Spule, gekennzeichnet durch eine zwischen Polschuh und Spulenbohrung angeordnete Feder, welche auf die Spule einen senkrecht zur Richtung der Spulenbohrung wirkenden Druck ausübt und dadurch -die Spule auf dem Magneten festhält.1. Telephone with easily exchangeable coil, characterized by an between Pole shoe and coil bore arranged spring, which is perpendicular to the coil to the direction of the coil bore acting pressure and thereby -the Coil on the magnet. 2. Telephon nach Anspruch 1, dadurch gekennzeichnet, daß die Feder, die die Spule festhält, den Magneten oder dessen Polschuh umfaßt, auf dem die Spule festgehalten werden soll.2. Telephone according to claim 1, characterized in that the spring which the Coil holds, includes the magnet or its pole piece on which the coil is held shall be. *) Von dem Patentsucher ist als der Erfinder angegeben worden:*) The patent seeker stated as the inventor: Otto Oel\e in Kiel.Otto Oil in Kiel.
DEN22604D Telephone with easily exchangeable coil Expired DE419920C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEN22604D DE419920C (en) Telephone with easily exchangeable coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN22604D DE419920C (en) Telephone with easily exchangeable coil

Publications (1)

Publication Number Publication Date
DE419920C true DE419920C (en) 1925-10-12

Family

ID=7342230

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN22604D Expired DE419920C (en) Telephone with easily exchangeable coil

Country Status (1)

Country Link
DE (1) DE419920C (en)

Similar Documents

Publication Publication Date Title
DE419920C (en) Telephone with easily exchangeable coil
DE633936C (en) Key for insert locks
DE522079C (en) Relay, the iron circle of which is formed from stamped pieces
DE404426C (en) Device for magnetizing a multi-pole permanent magnet with alternating polarities by means of a bipolar electromagnet, the cores of which are lengthened at their pole ends in a known manner
DE943787C (en) Magnetic anisotropic permanent magnet based on iron containing nickel, aluminum and cobalt and a process for the production of such magnets
DE569541C (en) Polarized quadrupole alarm clock
DE353606C (en) Combination padlock
DE1001767B (en) AC magnet
DE545784C (en) Electromagnetic relay with several armatures provided with locking elements
DE544392C (en) Ticket printer with a swinging housing
DE452548C (en) Electric motor
AT64874B (en) Nut lock with a spring-loaded ball.
DE599230C (en) Traction magnet
DE939399C (en) Storage for carpet stair poles
DE420407C (en) Device for fastening pole bodies to rotors of electrical machines by means of claw-like fastening means that can be pushed into round, semi-closed longitudinal grooves of the rotor body
AT84055B (en) Alarm clock.
DE1221359B (en) Electromagnet, especially for relays
DE194679C (en)
DE556316C (en) Cylinder locks that are in alignment are fastened by screws to a mortise lock with a beard that remains permanently in the lock
AT163736B (en) Theft protection for bicycle pumps
DE584935C (en) Flange coil
AT127594B (en) Magnet system with armature swinging out on both sides between opposing poles, in which the pole spacing between armature and poles can be adjusted.
DE580423C (en) Triggering device for the dies of die setting and line casting machines with two blocking bodies that move at the same time and alternate in the blocking position
DE646717C (en) Device for adjusting pawls, notches or other organs
DE417432C (en) Gun lock