GB405759A - Improvements relating to electric rotary converters - Google Patents

Improvements relating to electric rotary converters

Info

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
Application number
GB29939/32A
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB405759A publication Critical patent/GB405759A/en
Expired legal-status Critical Current

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.
GB29939/32A 1933-12-12 1932-10-26 Improvements relating to electric rotary converters Expired GB405759A (en)

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)

* Cited by examiner, † Cited by third party
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

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

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