GB1151397A - Improvements in Tools Driven by Electric Motors taking Large Starting Currents - Google Patents
Improvements in Tools Driven by Electric Motors taking Large Starting CurrentsInfo
- Publication number
- GB1151397A GB1151397A GB40302/67A GB4030267A GB1151397A GB 1151397 A GB1151397 A GB 1151397A GB 40302/67 A GB40302/67 A GB 40302/67A GB 4030267 A GB4030267 A GB 4030267A GB 1151397 A GB1151397 A GB 1151397A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever arm
- electric motors
- large starting
- starting currents
- taking large
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/28—Manual switches
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/24—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual ac commutator motor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/42—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual single-phase induction motor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S388/00—Electricity: motor control systems
- Y10S388/935—Specific application:
- Y10S388/937—Hand tool
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mechanical Engineering (AREA)
- Motor And Converter Starters (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
1,151,397. Grinding. METABOWERKE K.G. CLOSS, RAUCH & SCHNIZLER. 4 Sept., 1967 [15 Oct., 1966], No. 40302/67. Heading B3D. [Also in Divisions B5 and H1] A hand-held electric grinder or circular saw has a switch lever arm which passes through an intermediate position at which contacts 10, 11, Fig. 3, are closed, whereby the motor 3 is initially placed in series with a starting resistor 16 until the lever arm reaches the " ON " position at which a further contact 12 closes to short-circuit the resistor 16. The arrangement is adapted for use with a series motor to reduce the peak starting current. A detent may be provided for the lever arm, whereby a mechanical resistance has to be overcome, at the intermediate position, causing some delay before the full " ON " position is reached.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM0056612 | 1966-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1151397A true GB1151397A (en) | 1969-05-07 |
Family
ID=7308669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB40302/67A Expired GB1151397A (en) | 1966-10-15 | 1967-09-04 | Improvements in Tools Driven by Electric Motors taking Large Starting Currents |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3541364A (en) |
| CH (1) | CH455916A (en) |
| GB (1) | GB1151397A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2755401A1 (en) * | 1977-12-13 | 1979-06-21 | Bosch Gmbh Robert | ARRANGEMENT FOR LOWERING THE IDLE SPEED OF AN ELECTRIC MOTOR |
| DE102008050491A1 (en) * | 2008-10-01 | 2010-04-15 | Nordischer Maschinenbau Rud. Baader Gmbh + Co Kg | Apparatus and method for processing meat, especially fish |
| DE102011088976A1 (en) * | 2011-01-31 | 2012-08-02 | Continental Automotive Gmbh | Arrangement for controlling an electric vacuum pump |
| CN114938113A (en) * | 2020-09-01 | 2022-08-23 | 山东得普达电机股份有限公司 | Slow-starting permanent magnet motor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US834899A (en) * | 1905-08-22 | 1906-11-06 | Wallace W Freeman | Dental handpiece. |
| US1827372A (en) * | 1928-05-31 | 1931-10-13 | Arthur M Riddell | Hand control for electric motors |
| US2103922A (en) * | 1935-09-19 | 1937-12-28 | Gen Electric | Mixing device |
| US2373256A (en) * | 1942-06-03 | 1945-04-10 | Bendix Aviat Corp | Two-stage starting system for internal-combustion engines |
| US2348656A (en) * | 1943-02-18 | 1944-05-09 | Jack & Heintz Inc | Control mechanism |
| US2554506A (en) * | 1947-05-21 | 1951-05-29 | Birtman Electric Co | Radial contact switch |
| US2737371A (en) * | 1954-07-13 | 1956-03-06 | Gen Electric | Combined beater ejector and speed control for food mixer |
| US3260873A (en) * | 1963-08-16 | 1966-07-12 | Black & Decker Mfg Co | Mounting and cooling means for an energy-dissipating resistor in an electrically-operated device |
-
1967
- 1967-09-04 GB GB40302/67A patent/GB1151397A/en not_active Expired
- 1967-09-08 CH CH1256667A patent/CH455916A/en unknown
- 1967-10-04 US US673560A patent/US3541364A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3541364A (en) | 1970-11-17 |
| CH455916A (en) | 1968-05-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |