US405602A - Dynamo-electric machine or motor - Google Patents
Dynamo-electric machine or motor Download PDFInfo
- Publication number
- US405602A US405602A US405602DA US405602A US 405602 A US405602 A US 405602A US 405602D A US405602D A US 405602DA US 405602 A US405602 A US 405602A
- Authority
- US
- United States
- Prior art keywords
- strips
- sleeve
- dynamo
- armature
- motor
- 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 - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 14
- 239000010949 copper Substances 0.000 description 14
- 229910052802 copper Inorganic materials 0.000 description 14
- 229910052742 iron Inorganic materials 0.000 description 12
- 239000011810 insulating material Substances 0.000 description 10
- 210000003414 Extremities Anatomy 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 2
- 101700053639 CLK2 Proteins 0.000 description 2
- 206010022114 Injury Diseases 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
Definitions
- My invention relates to dynamo-electric machines or motors, with particular reference to the armatures and commutators of the same.
- the object of the invention is to provide an efficient machine of cheap construction.
- the armature is of the Gramme type; and it consists of a core of iron wire, around which fiat copper strips, representing the coils, are placed.
- the copper strips of each turn or convolution are four in number, and are arranged in a rectangular shape, with their extremities riveted together.
- the inner strip, or the one which runs parallel to the shaft, is extended to form a segment of the commutator.
- Figure 1 represents a central section of the armature and commutator; Fig. 2, a front elevation of the same, and Fi 3 a detail of the copper strips surrounding the core.
- the shaft is represented by A. It has keyed to it a brass hub B, and over this hub is passed a sleeve of vulcabeston or other hard insulating material C. This sleeve extends from the outer end of the commutator through to the opposite end of the armature. Its object is to insulate the armature and commutator from the shaft. The thickness of the sleeve is not the same throughout its length, the thinnest port-ion being at or about the center and gradually thickening toward the ends, as shown in Fig. 1. The purpose of this will be described later on.
- the electric conductors of the armature are made up of strips of copper a, b b, and 0. Of these strips a is the longest, and extends out over the insulating-sleeve to form a segment of the commutator. To the strip a is riveted the two strips 1) Z) at right angles thereto, and the outer ends of strips Z) are connected by a cross-strip 0. These compose the convolution. Of course it is not essential that every strip a should be extended, inasmuch as the root angular convolution may be continued into a second convolution, and as many more as desired, to represent one coil of the armature.
- the strips 1) b are riveted to the strips to a, and they are then placed in position around the shaft. Then iron wire D is wound around them in the manner of winding thread upon a spoolthat is to say, thespaces between the strips 1) b is nearly filled with iron wire.
- the wire is wound on under tension, so that the strips a will be bent inward at their middle portions toward the shaft to fill up the space made by thinning the vulcabeston sleeve. In this way the core and strips or coils are prevented from slipping longitudinally on the insulating-sleeve.
- the space inclosed by the strips 1) b and a is filled with insulating material of any suitable kind, and after the wire is wound thereon the outer surface of the winding is covered with insulating material, and the strips 0 c are placed across this surface and riveted to the proj ecting ends of b b. It is to be understood that all the strips are insulated from each other. The spaces between the strips 0 c on the circumference are necessarily quite wide, and they are filled. in with strips of sheet-iron c. This brings the iron of the core close to the pole-pieces. The whole structure is bound together by wire bands 6 e on the armature and f on the outer end of the commutator.
- the said sleeve is grooved longitudinally at several points-say fouraround its surface, and a corresponding number of the strips c are made wider and lit into these grooves. This prevents all radial movement of the armature and commutator with respect to the sleeve.
- the copper bars or strips are made comparatively wide, and this for the purpose of preventing eddy currents. I prefer to rivet the strips together rather than solder them, for the reason that solder is liable to be melted and cause injury to the machine.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
Description
A TTORNE V.
(No Model.)
0. L. ROSENQVIST.
DYNAMO ELECTRIC MACHINE 0R MOTOR. No. 405,602. PatentedJune 18, 1889.
' Conradl. fzoseizqucls W S i UNITED STATES PATENT OFFICE.
CONRAD L. ROSENQVIST, OF YONKERS, NEW YORK.
DYNAMO-ELECTRIC MACHINE O R MOTOR.
SPECIFICATION forming part of Letters Patent No. 405,602, dated June 18, 1889.
Application filed February 13, 1889. Serial No. 299,724. (No model.)
T to whom, it may concern;
Be it known that I, CONRAD L. ROSENQVIsT, a citizen of the United States, residing in Yonkers, in the county of \Vestchester and State of New York, have invented certain new and useful Improvements in Dynamo-Electric Machines or Motors, of which the following is a specification.
My invention relates to dynamo-electric machines or motors, with particular reference to the armatures and commutators of the same.
The object of the invention is to provide an efficient machine of cheap construction.
The armature is of the Gramme type; and it consists of a core of iron wire, around which fiat copper strips, representing the coils, are placed. The copper strips of each turn or convolution are four in number, and are arranged in a rectangular shape, with their extremities riveted together. The inner strip, or the one which runs parallel to the shaft, is extended to form a segment of the commutator.
The details of the construction will be hereinafter described.
Referring to the drawings, Figure 1 represents a central section of the armature and commutator; Fig. 2, a front elevation of the same, and Fi 3 a detail of the copper strips surrounding the core.
The shaft is represented by A. It has keyed to it a brass hub B, and over this hub is passed a sleeve of vulcabeston or other hard insulating material C. This sleeve extends from the outer end of the commutator through to the opposite end of the armature. Its object is to insulate the armature and commutator from the shaft. The thickness of the sleeve is not the same throughout its length, the thinnest port-ion being at or about the center and gradually thickening toward the ends, as shown in Fig. 1. The purpose of this will be described later on.
The electric conductors of the armature are made up of strips of copper a, b b, and 0. Of these strips a is the longest, and extends out over the insulating-sleeve to form a segment of the commutator. To the strip a is riveted the two strips 1) Z) at right angles thereto, and the outer ends of strips Z) are connected by a cross-strip 0. These compose the convolution. Of course it is not essential that every strip a should be extended, inasmuch as the root angular convolution may be continued into a second convolution, and as many more as desired, to represent one coil of the armature. In building the armature the strips 1) b are riveted to the strips to a, and they are then placed in position around the shaft. Then iron wire D is wound around them in the manner of winding thread upon a spoolthat is to say, thespaces between the strips 1) b is nearly filled with iron wire. The wire is wound on under tension, so that the strips a will be bent inward at their middle portions toward the shaft to fill up the space made by thinning the vulcabeston sleeve. In this way the core and strips or coils are prevented from slipping longitudinally on the insulating-sleeve. Before the iron wire is wound the space inclosed by the strips 1) b and a is filled with insulating material of any suitable kind, and after the wire is wound thereon the outer surface of the winding is covered with insulating material, and the strips 0 c are placed across this surface and riveted to the proj ecting ends of b b. It is to be understood that all the strips are insulated from each other. The spaces between the strips 0 c on the circumference are necessarily quite wide, and they are filled. in with strips of sheet-iron c. This brings the iron of the core close to the pole-pieces. The whole structure is bound together by wire bands 6 e on the armature and f on the outer end of the commutator.
In order to prevent the armature and commutator from slipping or turning on sleeve of insulating material C, the said sleeve is grooved longitudinally at several points-say fouraround its surface, and a corresponding number of the strips c are made wider and lit into these grooves. This prevents all radial movement of the armature and commutator with respect to the sleeve. The copper bars or strips are made comparatively wide, and this for the purpose of preventing eddy currents. I prefer to rivet the strips together rather than solder them, for the reason that solder is liable to be melted and cause injury to the machine.
Having described my invention, I claim The combination, with the main shaft, of a sleeve of insulating material thereon, said sleeve being reduced in diameter between its extremities, and an armature made up of coils of copper strips surrounding acore ofiron wire, my name in the presence of two subscribing the said wire being wound under tension and witnesses. bending the copper stnps toward the shaft Y '1 1 7 l 7' V V and against the surface of the sleeve, whereby COL RAD 5 the armature is prevented from slipping off WVitnesses:
the sleeve. CHESTER XV. NEWMAN,
In witness whereof I have hereunto signed XVILLIAM RILEY.
Publications (1)
Publication Number | Publication Date |
---|---|
US405602A true US405602A (en) | 1889-06-18 |
Family
ID=2474550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US405602D Expired - Lifetime US405602A (en) | Dynamo-electric machine or motor |
Country Status (1)
Country | Link |
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US (1) | US405602A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005024352A2 (en) * | 2003-08-21 | 2005-03-17 | Appleton Papers Inc. | Apparatus and method for real time determination of density and related parameters in manufacturing processes |
US20110074232A1 (en) * | 2008-06-04 | 2011-03-31 | Convergent Power, Inc. | Pulsed multi-rotor constant air gap switched reluctance motor |
US8482181B2 (en) | 2008-06-04 | 2013-07-09 | Convergent Power, Inc. | Three phase synchronous reluctance motor with constant air gap and recovery of inductive field energy |
-
0
- US US405602D patent/US405602A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005024352A2 (en) * | 2003-08-21 | 2005-03-17 | Appleton Papers Inc. | Apparatus and method for real time determination of density and related parameters in manufacturing processes |
WO2005024352A3 (en) * | 2003-08-21 | 2007-04-19 | Appleton Paper Inc | Apparatus and method for real time determination of density and related parameters in manufacturing processes |
US20110074232A1 (en) * | 2008-06-04 | 2011-03-31 | Convergent Power, Inc. | Pulsed multi-rotor constant air gap switched reluctance motor |
US8373328B2 (en) | 2008-06-04 | 2013-02-12 | Convergent Power, Inc. | Pulsed multi-rotor constant air gap switched reluctance motor |
US8482181B2 (en) | 2008-06-04 | 2013-07-09 | Convergent Power, Inc. | Three phase synchronous reluctance motor with constant air gap and recovery of inductive field energy |
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