GB456311A - Improvements in and relating to electrical apparatus for exercising the muscles of the body - Google Patents
Improvements in and relating to electrical apparatus for exercising the muscles of the bodyInfo
- Publication number
- GB456311A GB456311A GB11282/36A GB1128236A GB456311A GB 456311 A GB456311 A GB 456311A GB 11282/36 A GB11282/36 A GB 11282/36A GB 1128236 A GB1128236 A GB 1128236A GB 456311 A GB456311 A GB 456311A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transformer
- cam
- rheostat
- april
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36003—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation of motor muscles, e.g. for walking assistance
Landscapes
- Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Electrotherapy Devices (AREA)
Abstract
456,311. Frequency-changing. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. April 20, 1936, No. 11282. Convention date, April 20, 1935. [Class 38 (ii)] [See also Groups VI and XXXVI] Electric apparatus for exercising body muscles comprises two transformers 110, 111, having their primaries in parallel and their secondaries in series-opposition. Transformer 110 has a saturated core and transformer 111 a non-saturated core. The arrangement is such that only the third and higher odd harmonics of the fundamental frequency are induced in the secondary circuit the fundamental frequency being suppressed, such suppression being assisted by the provision of a rheostat in the primary circuit of transformer 110. The secondary circuit includes means for adjusting the intensity of the induced current, and also varying it rhythmically, comprising an inductance 112, connected to the patient by leads 13, 16, and having a two-part core 117, 118. Part 117 is adjustable manually by a knob 27 connected to a cam 26 actuating a rod 25 against the action of a spring 24. Part 118 is reciprocated by a cam 21 acting on a rod 22 against a spring 23, the cam being driven at a variable speed by an electric motor 113 connected to the mains through a rheostat 115.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US456311XA | 1935-04-20 | 1935-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB456311A true GB456311A (en) | 1936-11-06 |
Family
ID=21939018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11282/36A Expired GB456311A (en) | 1935-04-20 | 1936-04-20 | Improvements in and relating to electrical apparatus for exercising the muscles of the body |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB456311A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4245640A (en) * | 1977-10-07 | 1981-01-20 | Hunt Robert J | Chest motion electricity generating device |
-
1936
- 1936-04-20 GB GB11282/36A patent/GB456311A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4245640A (en) * | 1977-10-07 | 1981-01-20 | Hunt Robert J | Chest motion electricity generating device |
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