US271188A - Samuel h - Google Patents
Samuel h Download PDFInfo
- Publication number
- US271188A US271188A US271188DA US271188A US 271188 A US271188 A US 271188A US 271188D A US271188D A US 271188DA US 271188 A US271188 A US 271188A
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- US
- United States
- Prior art keywords
- magnet
- samuel
- receiver
- coil
- split
- 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
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- 239000007787 solid Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
Definitions
- Our invention relates mainly to a novel construction of magnet for telephones and like uses, the end of the magnet being split into thin leaves or plates, all forming parts of one and the same pole, and which are consequently made to antagonize and repel each other with a force varying with the degree of disturbance in or thestrength ofthe current passing through the surrounding helix.
- A represents a bar-magnet of any usual or preferred form, and which is inclosed in the ordinary hollow cylindrical handle or case, B.
- One end of this case is enlarged, forming a head, B, chambered in its end, to receive a coil or helix, 0, surrounding the end of the magnet projecting within said chambered nd, as shown.
- the end ofthe magnet surrounded by the coil 0 is laminated or split intoa number of thin plates or leaves, a a, all projecting from the body of the magnet and arranged side by side in close proximity one with another, as shown.
- Amagnet consisting of a solid body having its end or pole made in laminated form, substantially as described.
- a magnet consisting of a solid body having its end made in laminated form, in combination with the coil surrounding said end, substantially as described.
Description
(No Model.
S. H. BARTLETT & H. E. WAITE.
RECEIVER FOR TELEPHONES.
No. 271,188. Patented Jan.,23, 1883.
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through our improved receiver.
UNITED STATES PATENT OFFICE.
SAMUEL H. BARTLETT AND HENRY E. WAITE, OF NEW YORK, N. Y.,
ASSIGNORS TO CHARLES F. LIVERMORE,
OF SAME PLACE.
RECEIVER FOR TELEPHONES.
SPECIFICATION forming part of Letters Patent No. 271,188, dated January 23, 1883,
Annlidation filed June 2, 1882. (No model.)
To all whom it may concern.-
Beit known that we, SAMUEL H. BARTLETT and HENRY E. WAITE., of New York, county of New York, and State of New York, have invented new and useful Improvements in Receivers for Telephones, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification, in which- Fignre 1 represents a longitudinal section Fig. 2 is a perspective view of the split or laminated end of the magnet.
Our invention relates mainly to a novel construction of magnet for telephones and like uses, the end of the magnet being split into thin leaves or plates, all forming parts of one and the same pole, and which are consequently made to antagonize and repel each other with a force varying with the degree of disturbance in or thestrength ofthe current passing through the surrounding helix.
It further consists in a novel arrangement of the ear-piece relatively to the split magnet, dispensing with the usual diaphragm, as hereinafter explained.
In the accompanying drawings, A represents a bar-magnet of any usual or preferred form, and which is inclosed in the ordinary hollow cylindrical handle or case, B. One end of this case is enlarged, forming a head, B, chambered in its end, to receive a coil or helix, 0, surrounding the end of the magnet projecting within said chambered nd, as shown. The end ofthe magnet surrounded by the coil 0 is laminated or split intoa number of thin plates or leaves, a a, all projecting from the body of the magnet and arranged side by side in close proximity one with another, as shown.
This form of construction enables us to dispense with the diaphragm usually employed It will be apparent that the plates or a of the split or laminated end of the magnet, being all parts of .the same pole, will be of like pov larity, and as parts of like polarity repel each other the plates at a, under the action of the current passing through the coil (3, will repel each other with a force varying with the varying strength of such current, and a disturbance among the said plates is thereby produced, corresponding to the disturbances in the current passing through the coil.
Having now described our invention, what we claim as new, and desire to secure by Letters Patent, is
l. Amagnet consisting of a solid body having its end or pole made in laminated form, substantially as described.
2. In a telephone-receiver, a magnet consisting of a solid body having its end made in laminated form, in combination with the coil surrounding said end, substantially as described.
3. The combination, in a telephone-receiver, of a magnet consisting of a solid body having its end made in laminated form, a coil surrounding said end, and a handle and ear-piece applied thereto, substantially as described.
In testimony whereof we have hereunto set our hands this 31st day of May, A. D. 1882.
SAMUEL H. BARTLETT. HENRY E. WAITE.
Witnesses:
O. H. HAN-KINSON, OSCAR VAN N AME.
effective receiver
Publications (1)
Publication Number | Publication Date |
---|---|
US271188A true US271188A (en) | 1883-01-23 |
Family
ID=2340425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US271188D Expired - Lifetime US271188A (en) | Samuel h |
Country Status (1)
Country | Link |
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US (1) | US271188A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3213208A (en) * | 1961-08-14 | 1965-10-19 | Tung Sol Electric Inc | Electric to sonic transducer |
-
0
- US US271188D patent/US271188A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3213208A (en) * | 1961-08-14 | 1965-10-19 | Tung Sol Electric Inc | Electric to sonic transducer |
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