US279399A - Amd feank e - Google Patents

Amd feank e Download PDF

Info

Publication number
US279399A
US279399A US279399DA US279399A US 279399 A US279399 A US 279399A US 279399D A US279399D A US 279399DA US 279399 A US279399 A US 279399A
Authority
US
United States
Prior art keywords
core
feank
amd
cores
coils
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
Application number
Publication date
Application granted granted Critical
Publication of US279399A publication Critical patent/US279399A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/12Impregnating, heating or drying of windings, stators, rotors or machines

Definitions

  • our improvement relates to the construction of the cores or carriers for the revolving coils in a dynamoelectric machine; and our inven- I 5 tion consists in so forming the revolving core that it insures perfect insulation of the coils of wire which are wound upon it, and in so arranging the metal forming part of the core as to prevent, in a great measure, the generation of Foucault currents and avoid all unnecessary heating of the same.
  • Figure 1 is a longitudinal section of the armature-core.
  • Fig. 2 is a cross-section of the same, and Fig. 3 is a side view of the central part thereof.
  • the core is built of rods or bars of metal connecting the metallic heads and wound with fine iron wire to build them to the proper size.
  • Our invention is in part to dispense with the bars used to form the core, and yet retain all the advantages of the same also, as the winding of the core with fine iron wire is tedious 4 5 and expensive, the invention is in part to wind the cores with material in a form which can be expeditiously and cheaply applied.
  • FIG. 1 B is the revolving shaft, on which the core is placed.
  • the central portion, 1), Figs. 2 and 3, is a central casting of iron, formed with continuous ends H H and connected together by the longitudinal bars D, which are connected together at intervals by the ribs H.
  • the surface of this cylinder may be made plain and perforated in a great variety of ways, all. yielding similar results; but this form is the one preferred by us.
  • the heads A A are formed of papier-mach or of any suitable insulating material. They are pressed in molds to the desired form and are bushed with the metallic cores G G.
  • the metal bushings G G are perforated, as shown in Fig. 2, thus making the hollow core open at both ends, so that there can be a free circulation of air through it. 7
  • the central part, D is fastened to the heads A A by screws or in. any suitable manner, and the whole is held on the shaft B by the set-nuts O C and keys J J.
  • the core is bound with rings E of soft strap-iron. These rings are separated from one another by spaces, giving access to the interior of the core to allow a free circulation of air, and also at regular intervals by the papier-mach disks F, formed as shown. These disks may also be made of anysuitable insulating material.
  • an armaturecore which has no projecting part of metal, and on which the insulated wire coils can at once be wound, there being no danger of any crosses occurring between the wire and the core, as all the parts over which the wire is passed are of non-conducting material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Description

Patented June 12,1883.
(No Model.)
E. R. KNOWLES'Kv I. E. IDELL. ARMATURE FOR DYNAMO ELECTRIC MACHINES. No. 279,399.
V TOR ATTORNEY UNITED STATES EDNVARD R. KNOWLES, OF BROOKLYN, NEW YORK, AND FRANK OF HOBOKEN, NEWV JERSEY.
PATENT, OFFICE.
IDELL,
ARMATUREY FOR DIYNAMO-ELEQTRIC MACHINES.
SPECIFICATION forming part of Letters Patent No. 279,399, dated June 12, 1883.
I Application filed September 6, 18852. (No model.)
'0 all whom it may concern Be it known that we, EDWARD R. KNOWLES, a resident of Brooklyn, in the county of Kings and State of New York, and FRANK E. IDELL,
a resident of Hoboken, in the county of Hudson and State of New Jersey, have invented certain Improvements in Rotating Armatu res for Dynamo-Electric Machines, of which the following is a specification, reference being bad 1-0 to the accompanying drawings and the letters and figures of reference marked thereon.
Our improvement relates to the construction of the cores or carriers for the revolving coils in a dynamoelectric machine; and our inven- I 5 tion consists in so forming the revolving core that it insures perfect insulation of the coils of wire which are wound upon it, and in so arranging the metal forming part of the core as to prevent, in a great measure, the generation of Foucault currents and avoid all unnecessary heating of the same.
As our improvement relates solely to the construction of the core or carrier for the rotating coils, and as the use of rotating coils in dynamoelectric machines is well known, we
do not deem it necessary to describe any parti cular dynamo-electric machine.
Our improvement will be found useful in any dynamo-electric machine, irrespective of the 0 number of magnets employed and irrespective of the mode of connecting the coils of such machines in an electric circuit.
In the accompanying drawings, Figure 1 is a longitudinal section of the armature-core.
3 5 Fig. 2 is a cross-section of the same, and Fig. 3 is a side view of the central part thereof.
In some of the armature-cores at present in use the core is built of rods or bars of metal connecting the metallic heads and wound with fine iron wire to build them to the proper size. Our invention is in part to dispense with the bars used to form the core, and yet retain all the advantages of the same also, as the winding of the core with fine iron wire is tedious 4 5 and expensive, the invention is in part to wind the cores with material in a form which can be expeditiously and cheaply applied.
In all armature-cores formed of metal with intervention of any material for the purpose of 5 5- insulation.
In Fig. 1, B is the revolving shaft, on which the core is placed. The central portion, 1), Figs. 2 and 3, is a central casting of iron, formed with continuous ends H H and connected together by the longitudinal bars D, which are connected together at intervals by the ribs H. The surface of this cylinder may be made plain and perforated in a great variety of ways, all. yielding similar results; but this form is the one preferred by us. By this method of construction all the difficulties of making the bar armature cores are avoided and all their valuable qualities obtained at a very moderate cost.
The heads A A are formed of papier-mach or of any suitable insulating material. They are pressed in molds to the desired form and are bushed with the metallic cores G G. The metal bushings G G are perforated, as shown in Fig. 2, thus making the hollow core open at both ends, so that there can be a free circulation of air through it. 7
The central part, D, is fastened to the heads A A by screws or in. any suitable manner, and the whole is held on the shaft B by the set-nuts O C and keys J J. After the core is formed it is bound with rings E of soft strap-iron. These rings are separated from one another by spaces, giving access to the interior of the core to allow a free circulation of air, and also at regular intervals by the papier-mach disks F, formed as shown. These disks may also be made of anysuitable insulating material.
By this method of construction an armaturecore is obtained which has no projecting part of metal, and on which the insulated wire coils can at once be wound, there being no danger of any crosses occurring between the wire and the core, as all the parts over which the wire is passed are of non-conducting material.
Having thus described our invention, What and the ends thereof being covered by no1lwe elzti1n1's eonduoting liendS, substantially {1S described. 10
ln 1 dynamo-electric lllilPlllllO the core ofzt w V 'f'. 'K JLK') rotatnig e011, consisting 01 a hollow cylinder I FRANK E. IIYELL.
having a inortised or perforated wall carried upon suitable central pieces, the wall of" said cylinder being covered at intervals with int-en vening rings of metal and insulating nuiteifiul,
\Vitnesses:
WM. H. BROADNAX, J. EDGAR BULL.
US279399D Amd feank e Expired - Lifetime US279399A (en)

Publications (1)

Publication Number Publication Date
US279399A true US279399A (en) 1883-06-12

Family

ID=2348618

Family Applications (1)

Application Number Title Priority Date Filing Date
US279399D Expired - Lifetime US279399A (en) Amd feank e

Country Status (1)

Country Link
US (1) US279399A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110084798A1 (en) * 2005-01-27 2011-04-14 The Chamberlain Group, Inc. System Interaction with a Movable Barrier Operator Method and Apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110084798A1 (en) * 2005-01-27 2011-04-14 The Chamberlain Group, Inc. System Interaction with a Movable Barrier Operator Method and Apparatus

Similar Documents

Publication Publication Date Title
US279399A (en) Amd feank e
GB2068787A (en) A wire guiding head for winding stator coils
US3725708A (en) Core for a dynamo-electric machine
US3225235A (en) Dynamo-electric machine stator structure
US1642057A (en) Armature
US3781980A (en) Method of making an improved stator or armature
US1291459A (en) Dynamo-electric machine.
US295368A (en) dennis
US377996A (en) eickemeyer
US294913A (en) Dynaivlo-electric machine
US392660A (en) Insulation of cores of dynamo-electric machines
CA1115319A (en) Armature for dynamoelectric machine
US397340A (en) Dynamo
US1007506A (en) Coil-support for dynamo-electric machines.
US401669A (en) Edward weston
US459923A (en) Armature for dynamo-electric machines and motors
US598657A (en) William beedie esson
US417794A (en) Armature For Electrlc Machines
US541380A (en) Armature for electric motors and generators
US379037A (en) Dynamo-electric machine
US461296A (en) Armature for electric motors
US232910A (en) houston
US401668A (en) Edward weston
US354292A (en) williamson
US830025A (en) Dynamo-electric machine and the like.