USRE8141E - Improvement in dynamo-electric machines - Google Patents
Improvement in dynamo-electric machines Download PDFInfo
- Publication number
- USRE8141E USRE8141E US RE8141 E USRE8141 E US RE8141E
- Authority
- US
- United States
- Prior art keywords
- magnets
- armatures
- dynamo
- commutator
- electro
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003068 static Effects 0.000 description 1
Images
Definitions
- My machine contains a group of revolving armatures and a group of stationary magnets; but the entire current generated in the armatnres is passed through the coils of the static nary magnets, as well as through the operative circuit all the coils upon the electro-magnets being in the same circuit.
- the distinguishing characteristic of the or,- ganization of my machine is that the revolving armatures and stationary electro-magnets are arranged in the same plane, the stationary magnets being affixed to and projecting convergently from the interior of a hollow cylindrical iron shell, hereinafter called the cylinder, and the revolving magnets composing the armatures being aflixedto and projecting radially outward from a shaft revolving in the center .or axis of the cylinder.
- My invention also includes the feature of detachable top plates or caps for the armaturesi which, by their capacity for detachment, afi'or opportunity for the bodily removal of the coils from the cores, and, of course, a like opportunity for the application to the cores of coils already wound.
- Fig. 2 is a central longitudinal vertical section.
- Fig. 3 is a side view of the commutator.
- Fig. 4' is a transverse section of the commutator.
- Fig. 5 is a section through one of the electromagnets composing the revolving armature, and
- Fig. 6 is a detailed view of the same.
- My machine consists of a cylinder, A, which is properly supported upon the bed-plate, and is provided'with a' number of inwardly-converging electro-magnets, B B. 'These magnets, which partake of the shape of the armaturemagnets in respect of being short radially and elongated transversely in a direction parallel with the shaft (J,'are each wrapped orwound with metallic wires or ribbons b b, in the usual manner.
- the cylinder A may also have the wire .hub by one or more screws, (1, or by other suitable means, so that itmay be independ.
- Each armature is also providedwith a cap or top plate, E, which, if desired, may be detaehably connected tothe armature by the pins e, or by other suitable means.
- the armature-coils By the rotation of the shaft 0 currents of electricity are induced in the armature-coils alternately in opposite directions as the armatures sweep by the successive poles of the stationary magnets.
- the currents induced in the armatures are collected and conducted -to the operative circuit, which includes the coils surroundin g all the stationary electro-magnets by means of a metallic commutator composed of two parts, H and H, insulated from each other, one of which, H, is electrically connected with the shaft, and is thereby connected with one end of each of the armaturecoils, while the other part, H, which is insulated from the shaft, is connected with (the ne part, H, of the commutator consists of a perforatcd hub mounted upon an insulated bushing upon the shaft 0, and provided with a number of laterallyprojecting equidistant strips, the outer surfaces of which coincide with the periphery of the hub.
- the other part, H consists of a smaller hub, mounted directly upon the shaft 0, and provided with a group of equidistant radially-projecting strips, the outer faces of which are curved, and also coincide with the periphery of the hub of the piece H.
- the two parts of the commutator are clamped in position upon the shaft, between the collar J and the nut K, which is screwed on the outer end of the shaft, and bears against the end of the piece H.
- An insulating-collar separates the-piece H from the piece'H, and a flanged bushing of insulating material separates the collar J from the shaft 0. v
- the number of strips in the commutator corresponds to the number of revolving armatures. It is a result of this organization of the commutator that only two springs or brushes, Land L, are required for the c011ection of the currents from all the revolving armatures.
- the brushes L and L" bear respectively upon strips belonging to difl'erentparts of the commutator.
- a ring or hollow cylinder of iron or other magnetic material wrapped or unwrapped, provided interiorly with a group of radially-converging magnets forming a part of the cylinder, in combination with a group of armatures projecting radially from and forming part of a central rotating hub of iron or other material, substantially as described.
- A-dynamo-electric machine provided with a group of radiallyconverging stationary elec-'- tro-magnets, and a group of armatures radially afflxed to and projecting from a central hub, when so arranged that the currentgenerated in all the armatures is conducted through the coils surrounding all the stationary electro-magnets, as and for the purposes set forth.
- the commutator H H made in two parts, as described, placed upon the shaft 0, the ring J, and nutK, all constructed substantially as and for the purposes set forth.
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