US518913A - Commutator-brush - Google Patents
Commutator-brush Download PDFInfo
- Publication number
- US518913A US518913A US518913DA US518913A US 518913 A US518913 A US 518913A US 518913D A US518913D A US 518913DA US 518913 A US518913 A US 518913A
- Authority
- US
- United States
- Prior art keywords
- brush
- commutator
- graphite
- wire cloth
- brown
- 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
- 229910002804 graphite Inorganic materials 0.000 description 6
- 239000010439 graphite Substances 0.000 description 6
- 239000004744 fabric Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- -1 graphite compound Chemical class 0.000 description 2
- 229940099259 vaseline Drugs 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- LTMHDMANZUZIPE-PUGKRICDSA-N digoxin Chemical compound C1[C@H](O)[C@H](O)[C@@H](C)O[C@H]1O[C@@H]1[C@@H](C)O[C@@H](O[C@@H]2[C@H](O[C@@H](O[C@@H]3C[C@@H]4[C@]([C@@H]5[C@H]([C@]6(CC[C@@H]([C@@]6(C)[C@H](O)C5)C=5COC(=O)C=5)O)CC4)(C)CC3)C[C@@H]2O)C)C[C@@H]1O LTMHDMANZUZIPE-PUGKRICDSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/14—Maintenance of current collectors, e.g. reshaping of brushes, cleaning of commutators
Definitions
- lVIy invention relates to improvements in the brushes used on the commutators of dynamos and electric motors; and the Objects of Iny invention are, first to provide a brush that is flexible and adapts itself to the surface over which it slides; and second tO provide continuous lubrication and means for causing the surface over which the brush slides tobecome glazed, reducing the wear. I attain these objects by the brush shown in the accompanying drawing, which is a perspective view.
- kMy brush consists of woven Wire cloth folded upon itself many times until the suitable thickness and width are attained. While being folded, the inner layers Of wire cloth are impregnated with a compound made Of graphite and so'me liquid Or pasty matter with which it can be mixed.
- a compound made Of graphite and so'me liquid Or pasty matter with which it can be mixed.
- Such materials as Oil, vaseline, parane melted, and even water, have been used with good results.
- graphite itself has great lubricating qualities, and therefore this material alone put into a copper brush will produce excellent results.
- I find that 'an oily material like vaseline in small quantities in a brush with the graphite is preferable. But in any case graphite is the important material as it causes the metallic surfaces that rub together to become polished and glazed.
- a commutator brush composed Of woven wire cloth folded together and the inner layers only of which are impregnated with a graphite compound left in a soft yielding condition and adapted to make contact at its end with a commutator.
- a commutator brush composed of woven wire cloth folded together and having its in ner layers only saturated with a graphite compound, the whole being in a flexible condition and adapted to make contact at its end with the commutator.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Current Collectors (AREA)
Description
(No Model.)
G. W. BROWN.
' GOMMUTATOR BRUSH.
, Patented Apr. 24, 1894.
Y Hw/S868: Inventor m. #am www /m Wem@ 2? me mmcnm. LnnoewAPHlNa coMPANv wAsmNsJoN. D. o.
, UNITED STATES vPATENT OFFICE.
GEORGE w. BROWN, OE DEEEING, MAINE.
COMMUTATOR-BRUSH.
SPECIFICATION forming part of Letters Patent No. 518,913, dated April 24, 1894.
Application filed November 15,1893. SerialNo.49l,062. (No model.)
.To all whom t may concern:
Be it known that I, GEORGE W. BROWN, a citizen of the United States, residing at Deering, in the county of Cumberland and State of Maine, have invented a new and useful Commutator Brush, of which the following is a specification.
lVIy invention relates to improvements in the brushes used on the commutators of dynamos and electric motors; and the Objects of Iny invention are, first to provide a brush that is flexible and adapts itself to the surface over which it slides; and second tO provide continuous lubrication and means for causing the surface over which the brush slides tobecome glazed, reducing the wear. I attain these objects by the brush shown in the accompanying drawing, which is a perspective view.
kMy brush consists of woven Wire cloth folded upon itself many times until the suitable thickness and width are attained. While being folded, the inner layers Of wire cloth are impregnated with a compound made Of graphite and so'me liquid Or pasty matter with which it can be mixed. Such materials as Oil, vaseline, parane melted, and even water, have been used with good results. Itis well known that graphite itself has great lubricating qualities, and therefore this material alone put into a copper brush will produce excellent results. But I find that 'an oily material like vaseline in small quantities in a brush with the graphite is preferable. But in any case graphite is the important material as it causes the metallic surfaces that rub together to become polished and glazed. It is evident from the above description that all the .materials used are such as tO leave the nished brush flexible so that when the beveled end Of the brush is applied to the surface of the commutator it will be yielding enough to secure perfect contact throughout its width.
I am aware that brushes have been made with woven wire cloth previously to mine, but
What I claim as new, and desire to secure by Letters Patent of the United States, is-
1. A commutator brush composed Of woven wire cloth folded together and the inner layers only of which are impregnated with a graphite compound left in a soft yielding condition and adapted to make contact at its end with a commutator.
2. A commutator brush composed of woven wire cloth folded together and having its in ner layers only saturated with a graphite compound, the whole being in a flexible condition and adapted to make contact at its end with the commutator.
GEORGE W. BROWN.
Witnesses:
ALBION LITTLE, SE'III L. LAEEAEEE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US518913A true US518913A (en) | 1894-04-24 |
Family
ID=2587712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US518913D Expired - Lifetime US518913A (en) | Commutator-brush |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US518913A (en) |
-
0
- US US518913D patent/US518913A/en not_active Expired - Lifetime
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