US996475A - Brush for dynamo-electric machines. - Google Patents

Brush for dynamo-electric machines. Download PDF

Info

Publication number
US996475A
US996475A US51719509A US1909517195A US996475A US 996475 A US996475 A US 996475A US 51719509 A US51719509 A US 51719509A US 1909517195 A US1909517195 A US 1909517195A US 996475 A US996475 A US 996475A
Authority
US
United States
Prior art keywords
brush
dynamo
superstructure
collector surface
wearing portion
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
US51719509A
Inventor
Walter C Fish
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to US51719509A priority Critical patent/US996475A/en
Application granted granted Critical
Publication of US996475A publication Critical patent/US996475A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
    • H01R39/26—Solid sliding contacts, e.g. carbon brush

Definitions

  • My invention relates to brushes for dynamo-electric machines and particularly to such brushes having a wearing portion for engaging with the collector surface and a non-wearing portion extending therefrom.
  • the object of my invention is to produce a well. ventilated brush of this type.
  • FIG. 1 is a perspective View of a brush built in accordance with my invention
  • Fig. 2 is a sectional view through a brush box and the brush of Fig. 1
  • Fig. 3 is an elevation of the same brush, with parts of the metal superstructure broken away
  • Fig. 4 is a plan View of the same.
  • 1 is the wearing portion ofmy brush, which is made of carbon or other material and which engages the collector surface; 2 is the superstructure .con-
  • the metal superstructure is preferably made of some metal having a low specific gravity
  • Patented J tine 2'7 Patented J tine 2'7
  • a brush fora dynamo-electric machine comprising a wearing portion-which engages the collector surface and a sheet metal superstructure of light weight open on two of its sides.
  • a brush for a dynamo-electric machine comprising a wearing portion whicn engages the collector surface and a superstructure consisting of a U'shaped metal cap, said cap being open on two of its sides.
  • a brush for a dynamo-electric machine comprising a wearing portion which engages the collector surface, a metal part and radiating vanes fastened to saidmetal part.
  • a brush for a dynamo-electric machine comprising a wearing portion which engages the collector surface, a metal superstructure of light weight and radiating vanes fastened to said superstructure.
  • a brush for a dynamo electric machine comprising a wearing portion which engages the collector surface, a metal superstructure of light weight and radiating vanes in the interior of said superstructure.
  • a brush for a dynamo-electric machine comprising a wearing portion which engages the collector surface, a metal superstructure of light weight and radiating vanes fastened to the interior of said superstructure.
  • a brush for a dynamo-electric machine comprising a Wearing portion which engages Weight and radiating vanes fastened. to the 10 the collector surface, a superstructure conlnterlor of said superstructure. slstlng of a U-shaped metal cap of light In witness whereof, I have hereunto set -weight and radiating vanes in the interior my hand this ninth (lay of September, 1909.
  • a brush for a dynamo-electric machine I comprising a Wearing portion which engages Witnesses: the collector surface, a superstructure con- JoHN A. McMANUs, J12, sisting of a U-shaped metal cap of light CHARLES A. BARNARD.

Description

W. O. FISH. BRUSH FOR DYNAMO ELECTRIC MAGHINES.
APPLICATION FILED SEPT. 11, 1909.
Patented June 27, 1911.
Inventor: Walter-C.F'isb,
Fag
Witnesses:
UNITED STATES PATENT OFFICE..,
WALTER C. FISH, 0F LYNN, MASSACHUSETTS, ASSIGNOR TO GENERAL ELECTRIS COMPANY, A CORPORATION OF NEW YORK.
BRUSH FOR DYNAMO-ELECTRIC MACHINES.
Application filed September 11,1909. Serial No. 517,195.
To all whom "it may concern:
Be it known that I, VALTER C. FIsH, a citizen of the United States, residing at Lynn, county of Essex,,iS.tate of Massachusetts, have invented certain new and useful.
Improvements in Brushes for Dynamo-Electric Machines,- of which the following is a specification.
My invention relates to brushes for dynamo-electric machines and particularly to such brushes having a wearing portion for engaging with the collector surface and a non-wearing portion extending therefrom. The object of my invention is to produce a well. ventilated brush of this type.
It has been found by experiment that a reduction of temperature in the operation of a brushon a dynamo-electric machine results in a marked reduction in the temperature rise in the collector surface, so that by the use of my improved form of brush,'I am enabled not only to minimize the sparking which is caused by irregularities in.-the collector surface, but am also enabled to re duce the temperature at which the brush operates and thereby further improve its oper-' ation.
To this end my invention consists in various improvements hereinafter to be more fully described and claimed.
For a better understanding of my invention reference may be had to the following description taken in connection with the accompanying drawing, in which' I Figure 1 is a perspective View of a brush built in accordance with my invention; Fig. 2 is a sectional view through a brush box and the brush of Fig. 1; Fig. 3 is an elevation of the same brush, with parts of the metal superstructure broken away, and Fig. 4 is a plan View of the same.
Referring to the drawing, 1 is the wearing portion ofmy brush, which is made of carbon or other material and which engages the collector surface; 2 is the superstructure .con-
sisting of a sheet metal cap, open on two of its sides, the top part 3 of whichis engaged by the spring 11 of the brush holder to force it into contact with the collector surface 10. The metal superstructure is preferably made of some metal having a low specific gravity,
Specification of Letters Patent.
Patented J tine 2'7,
such as aluminum, and has the same contour as the wearing portion of the brush, so that it forms a guide for the brush in the brushholder box 9. I have shown it as being U- shaped and riveted to the portion 1 of the brush by means of hollow rivets 5. Radiating vanes 6 are placed in the interior 4 of the metal cap and are fastened thereto by means of rivets 7. A pigtail for connecting the brush to the brush-holder body is fastened to the terminal 8 which is also fas-. te'ned to the top 3 of the metal cap by means of.rivets.
I desire it to be understood that my invention is not limited to the particular construction shown and described, and aim in the appended claims to cover all modifications which do not depart from the spirit and scope of my invention,
What I claim as new and desire to secure by Letters Patentof the United States, is,
l. A brush fora dynamo-electric machine comprising a wearing portion-which engages the collector surface and a sheet metal superstructure of light weight open on two of its sides.
. 2. A brush for a dynamo-electric machine comprising a wearing portion whicn engages the collector surface and a superstructure consisting of a U'shaped metal cap, said cap being open on two of its sides.
3. A brush for a dynamo-electric machine comprising a wearing portion which engages the collector surface, a metal part and radiating vanes fastened to saidmetal part.
4. A brush for a dynamo-electric machine comprising a wearing portion which engages the collector surface, a metal superstructure of light weight and radiating vanes fastened to said superstructure.
5. A brush for a dynamo electric machine comprising a wearing portion which engages the collector surface, a metal superstructure of light weight and radiating vanes in the interior of said superstructure.
6. A brush for a dynamo-electric machine comprising a wearing portion which engages the collector surface, a metal superstructure of light weight and radiating vanes fastened to the interior of said superstructure.
7. A brush for a dynamo-electric machine comprising a Wearing portion which engages Weight and radiating vanes fastened. to the 10 the collector surface, a superstructure conlnterlor of said superstructure. slstlng of a U-shaped metal cap of light In witness whereof, I have hereunto set -weight and radiating vanes in the interior my hand this ninth (lay of September, 1909.
of said' superstructure.
8. A brush for a dynamo-electric machine I comprising a Wearing portion which engages Witnesses: the collector surface, a superstructure con- JoHN A. McMANUs, J12, sisting of a U-shaped metal cap of light CHARLES A. BARNARD.
WALTER C. FISH.
US51719509A 1909-09-11 1909-09-11 Brush for dynamo-electric machines. Expired - Lifetime US996475A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US51719509A US996475A (en) 1909-09-11 1909-09-11 Brush for dynamo-electric machines.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US51719509A US996475A (en) 1909-09-11 1909-09-11 Brush for dynamo-electric machines.

Publications (1)

Publication Number Publication Date
US996475A true US996475A (en) 1911-06-27

Family

ID=3064806

Family Applications (1)

Application Number Title Priority Date Filing Date
US51719509A Expired - Lifetime US996475A (en) 1909-09-11 1909-09-11 Brush for dynamo-electric machines.

Country Status (1)

Country Link
US (1) US996475A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746745C (en) * 1937-07-16 1944-08-21 Aeg Contact piece for faucetless carbon brushes
US20080100170A1 (en) * 2006-09-29 2008-05-01 Herbert Rehm Carbon brush with wear-protecting means

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746745C (en) * 1937-07-16 1944-08-21 Aeg Contact piece for faucetless carbon brushes
US20080100170A1 (en) * 2006-09-29 2008-05-01 Herbert Rehm Carbon brush with wear-protecting means

Similar Documents

Publication Publication Date Title
US4112321A (en) Brush holder and brush assembly for a dynamoelectric machine
US4994701A (en) Brush holder assembly
US3474274A (en) Brush holder
US996475A (en) Brush for dynamo-electric machines.
US2748302A (en) Brush holder assembly for dynamoelectric machine
US2532827A (en) Brush rigging
US1231417A (en) Attachment-plug receptacle.
JPH03501906A (en) Sliding contact device for carbon brushes
US3075110A (en) Electric brush gear for holding and lifting
US676298A (en) Brush-holder.
US1934350A (en) Brush-holder assembly
US1569367A (en) Brushholder contact finger
US882565A (en) Brush-holder.
US1271863A (en) Brush-holder for dynamo-electric machines.
US956548A (en) Brush-holder for dynamo-electric machines.
US437946A (en) Edgar a
US3841906A (en) Method of treating a carbon current collection brush blank and brush resulting therefrom
GB2001482A (en) Brush arrangements for dynamo- electric machines
US1166161A (en) Brush-holder.
EP0483083B1 (en) A brush-holder, particularly for an alternator
US2406262A (en) Current collector
US949072A (en) Brush-holder for dynamo-electric machines.
GB190308054A (en) Improvements in Brushes for Electric Machines.
US714811A (en) Brush-holder.
US990461A (en) Brush-holder for dynamo-electric machines.