US2471741A - Electric generator - Google Patents

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Classifications

• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03K—PULSE TECHNIQUE
  • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
  • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
  • H02K35/06—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving flux distributors, and both coil systems and magnets stationary

Definitions

• This invention relates to improvements in electric impulse generators, and more particularly to generators of the type wherein a sudden surge of current is produced by movement of a floating armature into and out of contact with diagonally opposite pole pieces of a permanent magnet, or by alternately contacting said diagonally opposite pole pieces of a movable magnet with a stationary armature.
• a further object of my invention is to provide resilient means capable of adjustment for varying the force required to break the contact between said armature and the pole pieces of the magnet.
• Another object is to provide means for cushioning the blow of the armature against the pole pieces when the armature is actuated, thereby saving wear and tear on the armature and pole pieces and at the same time deadening the noise normally occurring when the device is operated.
• Fig. 1 is a cross section of a device embodying my invention.
• Fig. 2 is a similar cross section showing the armature in a position opposite to that shown in .Fi 1.
• Fig. 3 is a side elevation.
• Fig. 4 is an end view of the device.
• Fig. 5 is a horizontal sectional view showing one method of operating the device.
• Fig. 6 is an end view of a portion of the device shown in Fi 5.
• Fig. 7 is a perspective view of a modification of my invention.
• Fig. 8 is a horizontal sectional view of the device shown in Fig, '7.
• 2 designates a permanent magnet or magnets having north poles 5 and south poles 6 secured to or formed integral with pole plates 4.
• the magnets are secured between the plates 4' by means of screws or the like 11.
• the plates 4 are preferably made of soft iron or other material of high magnetic susceptibility.
• a coil 1 is mounted between the opposed pairs of pole pieces 5, B, and an armature 8 extends through the coil and between said opposite pole pieces.
• the armature is solely supported within the magnetic field by the magnetic force exerted thereon through diagonally opposite north and south poles and one, or both ends of the armature may extend beyond the pole pieces, for a purpose or purposes hereinafter described.
• Wires 9, Ill extend from opposite ends of the coil I for connection to the firing device, signal or the like, II, to be supplied with an electrical load from the generator.
• the armature may be moved by hand from the position shown in Fig. 1 to the position shown in Fig. 2, that is, into contact with one or the other of the respective diagonally opposite pole pieces 5 and 6 to produce th desired surge of current, or may be reciprocated either continuously or periodically, by any suitable motor or trigger mechanism connected to one or both extensions of the armature.
• Figs. 5 and 6 I have shown one form of manually operable means for reciprocating the armature.
• I provide a handle member l9 having lateral extensions 20 secured to opposite ends of the armature by means of screws or the like 2i.
• handle member l9 By grasping handle member l9 in one hand, the operator may rock the armature into and out of contact with diagonally opposite pole pieces of the magnet, thereby producing a surge of current each time the armature comes into contact with one set of said diagonally opposite pole pieces.
• the same result may be accomplished by anchoring the ends of the armature in any suitable manner, as shown in Fig. 8, and rocking the magnet relatively to the armature, providing the armature is made to contact diagonally opposite north and south pole pieces upon each rocking movement of the magnet.
• the desired action of the device may be accomplished by hand or by any suitable device (Figs. 7 and 8) capable of producing the required rocking action of the magnet relatively to the armature.
• Figs. '7 and 8 I have illustrated one method of operating the device by rockingthe magnet" relatively to a stationary armature.
• the generator assembly is arranged within a box or casing 60 pro-' vided with grooves 6
• a treadle 62;- is secured to the generator assembly and extends outwardly through an opening 63 in the'casingi'
• thelatter will be rocked on its pivot 64,- which-rockingmovement will disposedparted to the'magnet assembly thereby causing first one set of the diagonally opposite pole 'pieces' 5; B to contact the armature; and then the other set of said diagonally opposite-pole" pieces to contact'the armature.”
• I provide a pairof members l2' having resilient extensions '13, adapted'to bear" against one facepr'th'e other of the projecting.
• An electric impulse: generator comprising'a member for providing amagnetic .field, a second.
• An electric -impulse generator comprising a memberfor providing a magnetic: field, a secondmember supportecl in: saidfieldand through which theflux of the field passesiin one 'direction' or 'inthe opposite direction dependent upon'the position oceupied by. onewm'ember" relatively, to the other member, a coil inductively coupled to said secondmembenameans" for moving one of said members relatively to: the other member for changing thedirection of F flux" passing through said second member,- and resilient means on one of said members bearing against the other 'membar and iconstantly tending to move ;one' member relatively to'-tl1'e-othenmember-.
• An electric impulse generator comprising a. magnet for providing amagnetic field, an armature supported'in said field and through which the flux of the field passes in one direction or in the opposite directiondependent upon the position occupied by the armature relatively to the magnet, a coil inductively coupled to said armature, means for moving said armature relatively to the magnet for changing the direction of flux passing through said armature, and resilient means on said magnet bearing against opposite faces of the armature and constantly tending to move the armature relatively to the magnet.
• An electric impulse generator comprising a magnet for providing a magnetic field, an armature supported in said field and through which the flux of the field passes in one direction or in the opposite direction dependent upon the position occupied by the armature relatively to the magnet, a coil inductively coupled to said armature, means for moving said armature relatively to the magnet for changing the direction of flux passing through said armature, resilient means on said magnet bearing against opposite faces of the armature and constantly tending to move the armature relatively to the magnet, and means for varying the tension of said last mentioned means against the opposite faces of said armature.
• An electric impulse generator comprising a magnet having two pole pieces on each pole, an armature movable between said pole pieces, a coil inductively coupled to said armature, manually operable means connected to said armature for moving the latter into and out of engagement with diagonally opposite pole pieces of the magnet, and resilient means on said magnet bearing against the armature and constantly tending to break the contact between said armature and said diagonally opposite pole pieces of the magnet.
• An electric impulse generator comprising a magnet for providing, a magnetic field, an armature supported in said field and through which the flux of the field passes in one direction or in the opposite direction dependent upon the position occupied by the magnet relatively to the armature, a coil inductively coupled to said armature, a pair of pole pieces on each pole of the magnet, means for rocking said magnet relatively to said armature for bringing diagonally opposite pole pieces into contact with said armature, and means on said magnet bearing against opposite faces of the armature and constantly tending to force said diagonally opposite pole pieces out of contact with said armature.

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• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Electromagnets (AREA)
• Reciprocating, Oscillating Or Vibrating Motors (AREA)

Description

Priority Applications (1)

Applications Claiming Priority (1)

Publications (1)

Family

ID=24683916

Family Applications (1)

Country Status (1)

Cited By (3)

Citations (4)

• 1946
  • 1946-05-10 US US668833A patent/US2471741A/en not_active Expired - Lifetime

Patent Citations (4)

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