The United States Graphite Company Specification Sheet Carbon, Graphite and Metal-Graphite Brushes
- Title
- The United States Graphite Company Specification Sheet Carbon, Graphite and Metal-Graphite Brushes
- Accession Number
- 2020.3.362
- Accession Date
- 25 June 2024
- Accession Creator
- Robert Martinez
- Depositor
- Bobby Barton
- Format
- Paper
- Storage Location
- Modernization Records Box Folder #11
- Text
-
[Page One]
THE UNITED STATES GRAPHITE COMPANY
SPECIFICATIONS SHEET
CARBON, GRAPHITE AND METAL-GRAPHIE BRUSHES
By filling in this blank you will better enable our engineering department to make a proper
selection of brushes for your machines and operating conditions.
Number of brushes on machine
Number of brushes ordered
Size. Length Width Thickness (See sketch below)
Check type of Pigtail - Riveted [empty check box] Detachable [empty check box] Cemented [empty check box]
Position of Pigtail (see Cuts other side) ATTACH DRAWING IF YOU DESIRE SPECIAL TYPE PIG
Copper Coated or Plain
Give degree of bevel on holder end (see sketch below A B)
Give degree of bevel on Commutator end (see sketch below C)
Generator or Motor H. P.
A. C. or D. Current Type Serial No.
Manufactured by
Capacity in amperes Voltage Collector Rings
Diameter of Commutator Collector Rings
State whether Commutator is slotted or not
Number of Poles on Machine
Is Machine provided with Interpoles?
What is the amount of pressure on brushes?
Whose make of the brushes is now in use? What Grade?
Is service satisfactory?
Are brushes set radially ,[sketch of brush going straight up] leading [sketch of brush leaning, to the right] or trailing? [sketch of brush leaning to the left]
Do you lubricate either Brush or Commutator?
If so, what used and how applied?
in order to determine the level
of your brush, you can place the
brush on line AB with the point
of the bevelled part of the brush
resting at C. Whatever line the
bevel of your brush rests on is
the degree of the bevel-
led at angle of 60 degrees.
[sketch showing the angles of the bevel]
[Sketch of the soldered/detachable pig tail]
CEMENTED OR SOLDERED AND DETACHABLE TYPE
PIG TAIL
[Sketch of the riveted pig tail]
RIVETED TYPE PIG TAIL
Indicate distance between terminals and inside width of slot
Are you troubled with high mica?
Is machine running under constant overload?
Is severe sparking noticed at the brushes?
If possible send sample which has been in service
[Close up sketch of the brush]
L = LENGTH
W = WIDTH
T = THICKNESS
Specify length first,
width second and
thickness third. The
length of the brush is
perpendicular to the
commutator or slip
ring; the width is meas-
ured parallel to the
shaft of the machine;
and the thickness meas-
ured in the direction
the commutator or slip
ring is traveling.
Name of Company
Address
Signed
Date
(See other side.)
[END OF PAGE ONE]
[Page two]
SEVERAL TYPES OF BRUSHES MANUFACTURED BY
THE UNITED STATES GRAPHITE COMPANY, SAGINAW, MICHIGAN, U.S.A.
Standard Pigtails are furnished in 3 1/2 and 5 1/2 inch lengths. Specify which is desired.
[Drawings of the different kinds of pigtails]
Length of Recess
Width of Recess
Recess on one or both sides
Thickness under saddle
Number of holes
Distance from center of hole to end of brush
Distance from center of hole to side of brush
Distant between centers of holes
Are holes countersunk
If beveled and ctsk is ctsk on short or long side
Is brush shouldered? If so give length and depth.
Use above HOLES in any brush.
[END OF PAGE TWO]
Part of The United States Graphite Company Specification Sheet Carbon, Graphite and Metal-Graphite Brushes