GB405759A - Improvements relating to electric rotary converters - Google Patents
Improvements relating to electric rotary convertersInfo
- Publication number
- GB405759A GB405759A GB29939/32A GB2993932A GB405759A GB 405759 A GB405759 A GB 405759A GB 29939/32 A GB29939/32 A GB 29939/32A GB 2993932 A GB2993932 A GB 2993932A GB 405759 A GB405759 A GB 405759A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motors
- current
- macfarlane
- brush
- rail
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A3/00—Breech mechanisms, e.g. locks
- F41A3/12—Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
- F41A3/14—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
- F41A3/16—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks
- F41A3/26—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A3/00—Breech mechanisms, e.g. locks
- F41A3/12—Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
- F41A3/14—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
- F41A3/16—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks
- F41A3/26—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
- F41A3/28—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt having fixed locking elements on the non-rotating bolt and rotating locking elements mounted on the barrel or breech housing, e.g. rotatable rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
- F41A5/02—Mechanisms or systems operated by propellant charge energy for automatically opening the lock recoil-operated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
- F41A5/02—Mechanisms or systems operated by propellant charge energy for automatically opening the lock recoil-operated
- F41A5/14—Barrel stops, i.e. devices for holding the recoiling barrel in a predetermined position, e.g. the recoil position
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K47/00—Dynamo-electric converters
- H02K47/12—DC/DC converters
- H02K47/16—Single-armature converters, e.g. metadyne
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Toys (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
405,759. Control of D.C. motors. MACFARLANE, J. C., Braehead, MACFARLANE, W. A., Alderwood, both in Cathcart, and AUSTIN, G., 10, Caderwood Road, Newlands, both in Glasgow. Oct. 26, 1932, Nos. 29939/32 and 11425/33. [Class 38 (iii).] A continuous-current machine for converting current at constant potential to current at varying potential, or vice versa, supplies half the total power to the traction motors T1, T2 which have their field coils 10 connected between brush B4 and rail E and brush B3 and rail D respectively, this connection resulting in minimum excitation when the armature volts are highest. To stop the vehicle when the motors are running at high speed, the contacts of the potentiometer R2 are reversed, thus reversing the polarity of brushes B3 B4, and power is returned to the line. The machine may have two separate armature windings and may feed a separately excited hoist motor having a weak series winding. Specification 308,041, [Class 35, Dynamoelectric generators &c.], is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW93233D DE623065C (en) | 1933-12-12 | 1933-12-12 | Automatic firearm with twist lock |
Publications (1)
Publication Number | Publication Date |
---|---|
GB405759A true GB405759A (en) | 1934-02-15 |
Family
ID=32511938
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29939/32A Expired GB405759A (en) | 1933-12-12 | 1932-10-26 | Improvements relating to electric rotary converters |
GB813/34A Expired GB417292A (en) | 1933-12-12 | 1934-01-09 | Improvements in or relating to automatic firearms |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB813/34A Expired GB417292A (en) | 1933-12-12 | 1934-01-09 | Improvements in or relating to automatic firearms |
Country Status (7)
Country | Link |
---|---|
US (1) | US2015908A (en) |
BE (2) | BE400909A (en) |
CH (2) | CH172113A (en) |
DE (1) | DE623065C (en) |
FR (3) | FR762167A (en) |
GB (2) | GB405759A (en) |
NL (2) | NL42101C (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE739997C (en) * | 1938-02-17 | 1943-10-09 | Marc Birkigt | Device for releasing the breech lock for automatic firearms, especially for light guns for aircraft |
DE102012104387B4 (en) | 2012-05-22 | 2016-06-02 | Marco Kurapkat | Closure device for a firearm |
-
1932
- 1932-10-26 GB GB29939/32A patent/GB405759A/en not_active Expired
-
1933
- 1933-09-01 FR FR762167D patent/FR762167A/en not_active Expired
- 1933-12-12 DE DEW93233D patent/DE623065C/en not_active Expired
- 1933-12-26 CH CH172113D patent/CH172113A/en unknown
- 1933-12-28 NL NL67940A patent/NL42101C/xx active
-
1934
- 1934-01-09 GB GB813/34A patent/GB417292A/en not_active Expired
- 1934-01-16 BE BE400909D patent/BE400909A/xx unknown
- 1934-01-16 FR FR767167D patent/FR767167A/en not_active Expired
- 1934-02-21 US US712406A patent/US2015908A/en not_active Expired - Lifetime
-
1941
- 1941-09-30 CH CH220947D patent/CH220947A/en unknown
- 1941-10-04 NL NL103121A patent/NL56684C/xx active
- 1941-10-20 FR FR51832D patent/FR51832E/en not_active Expired
- 1941-12-05 BE BE443625D patent/BE443625A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
BE443625A (en) | 1942-01-31 |
US2015908A (en) | 1935-10-01 |
FR51832E (en) | 1943-05-04 |
NL42101C (en) | 1937-12-15 |
FR767167A (en) | 1934-07-11 |
CH220947A (en) | 1942-04-30 |
NL56684C (en) | 1944-07-15 |
GB417292A (en) | 1934-10-02 |
DE623065C (en) | 1935-12-12 |
BE400909A (en) | 1934-02-28 |
CH172113A (en) | 1934-09-30 |
FR762167A (en) | 1934-04-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB405759A (en) | Improvements relating to electric rotary converters | |
US1377074A (en) | Self-regulating dynamo-electric machine | |
US463802A (en) | leonard | |
US2596431A (en) | Direct-current rotary transformer | |
GB420167A (en) | Improvements in direct current dynamo electric machines | |
US1360293A (en) | Phase-converter | |
US1622567A (en) | Alternating-current motor | |
US1217187A (en) | Synchronous motor. | |
US740171A (en) | Continuous and pulsatory current electric motor. | |
DE381046C (en) | Method for regenerative braking of single-phase collector motors, in particular series wound machines, with slip rings on the runner | |
GB190705506A (en) | Improvements in or relating to Alternating Current Dynamo-electric Machines of the Commutator Type | |
US2030652A (en) | Direct electric current transformer device | |
US630490A (en) | Dynamo-electric machine and method of operating same. | |
GB191513562A (en) | Improvements in Dynamo Electric Machines of the Commutator Type. | |
GB184889A (en) | Improvements in dynamo electric machines | |
GB280624A (en) | Improvements in or relating to dynamo electric machines | |
GB281284A (en) | Improvements in electrical converting apparatus | |
GB417137A (en) | Improvements in dynamo-electric machines | |
GB406759A (en) | Improvements relating to dynamo electric machines for converting alternating electric currents to direct electric currents or vice versa | |
GB221551A (en) | Improvements in electric converting apparatus | |
GB191128750A (en) | Improvements in Dynamo-electric Machines. | |
GB190426194A (en) | Improvements in Dynamo-electric Generators and Motors. | |
GB191514216A (en) | Improvements in or relating to Dynamo-electric Machines of the Commutator Type. | |
GB519629A (en) | Improvements in or relating to dynamo-electric generators | |
GB385575A (en) | Improvements in and relating to alternating current commutator motors |