Norton 10"" x 20"" Universal Grinding Machine - Sales Manual Grinder

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10" x 20" UNIVERSAL

GRINDING MACHINE

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SALES MANUAL

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NORTON COMPANY .

July 1, 1950

WORCESTER 6, MASS.

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NORTON

10" x 20" UNIVERSAL

GRINDING MACHINE

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NORTON

SALES MANUAL

July 1, 19S0

COMPANY •

WORCESTER 6, MASS.

■A

NORTON

10 x 20" UNIVERSAL Grinding Machine

This confidential bulletin is issued for the purpose of providing
our salesmen and dealers with specific benefits resulting from
the many exclusive features of the NORTON 10 x 20" UNIVERSAL
Grinding Machines.

In the first section of this bulletin will be found a comparison
chart which we believe shows conclusively that the NORTON

10 x 20" UNIVERSAL Grinding Machine is competitive on all
counts with the two other machines in its class. In the second
section we show a number of set ups made much more quickly
and easily on our machine than heretofore possible on universal
grinding machines. In presenting the NORTON 10 x 20"
UNIVERSAL Grinding Machine to our customers we must stress
the benefits resulting directly from the exclusive features of
our machine.

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Comparison Chart of

Universal Grinding Machines

NORTON 10x20"

UNIVERSAL Machine L

Machine C

GENERAL

Nominal swing
Maximum swing

10"

10-11/16"
Nominal length between centers 20"
Max. diameter machine will

grind with full size wheel
Max. dist. wheel to work center
Min. dist. wheel to work center

10"*

13-13/16

1-9/16"

SLIDING TABLE Traverse speed-inches per minute 3 to 144

Ways -

8

Center to center
Overall width

Flat guide width

Vee guide width

”

9-5/8

1-5/8"

1-5/8"

10"
10-3/4"

20"

10"*
11-1/2"
4"

3 to 120

7-3/4

”

9-3/4

2
2

”
”

”
”

10"

10-15/16"

,20-"

10-15/16
15

”

3-3/4

”

3 to 280

6- 3/16
7- 1/4
1-1/2
1-1/2

”

”
”
”

H

”

Taper graduations, inches
per ft. on diam.

3

toward wheel head 4-1/2
away from wheel head 2

♦Recommend up to 4"diameter for most efficient stock removal.

NORTON 10 x 20"

UNIVERSAL

Machine L

Machine C

WHEEL SLIDE

HEADSTOCK

Grinding wheel standard size 10 x 1 x 3
Bearing diameter x length

Antifriction
Bearing Type

Spindle speeds

Wheel Head Swivels - Upper

2300, 2700

360

°

Lower 90° each way

Ways -

Center to center
Overall width
Flat guide width
Vee guide width

Diameter of spindle

Diameter of center

Taper of spindle hole

8"

9-5/8"

1-5/8"
1-5/8"

1-3/4"

3/4"

#10 Jarno

with adapter sleeve

for #6 Jarno

”

10 x 1/2 x 3"

1-1/2 x

1909,

2320

1-1/2"

90° each way
90° each way

7-3/4"
9-1/2"

1-3/4"
1-3/4"

1-9/16"
3/4"

#6 Jarno

12 x 1 x 5

1-3/4 x 2-1/2"

2000, 2550

90°

110°

9"

11-1/4"

2-1/4"

2-1/4"
2-1/2"

7/8"
#14 Jarno

with adapter sleeve

”

for #7 Jarno

FOOTSTOCK

Work speeds

Diameter

of

spindle

Diameter of center

Taper of center

50 to 500
1-5/8"

3/4"
#6 Jarno

90 to 600

1-1/2

”

3/4"
#6 Jarno

60 to 600

1-5/8"
7/8"

#7 Jarno

-1 -

STEADYREST Maximum capacity work

diameter

NORTON 10 x 20 ”

UNIVERSAL
2-1/2

”

Machine L

2

”

Machine C

2

”

MOTORS

Work drive, HP
Wheel drive, HP
Oil

pump drive, HP

Coolant pump drive, HP

Internal spindle drive, HP
Floor Space

Net Weight

1/4
1-1/2

1/2
1/4

1

75-1/2 x 89

4,000

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”

1/3
1

2

1/4

50 x 85

4,100

”

59-1/2 x 114-1/2

Price

^Priced competitively

•SKfThis machine is several hundred dollars more than the
NORTON Machine or Machine L.

1/2
1-1/2

3/4
1/4
1

tf

4,900

■SKI'

NORTON 10 x 20" Universal Grinder

Change in set ups made much

more quickly

Headstock

N-6177

N-6178

. . .through the use of interchangeable

head and footstocks.*

NORTON 10 x 20" Universal Grinder

Headstock

N-6183

Speed chucks, standard chucks
and face plate readily mounted

N-6184

on cam lock type headstock
spindle nose.

JACOBS spindle nose lathe chuck
mounted on Standard D - 1, 3
diameter cam lock type headstock
spindle nose.

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N-5676

SJOGREN collet chuck mounted on
cam lock type headstock spindle nose.

NORTON 10 x 20" Universal Grinder

Convenience for the operator

Headstock

N-6182

Time minimized in changing over from

center grinding to chucking

...............

derived from the quick change over
from dead center grinding to live
center grinding with handy spindle
unlocking knob and pin on drive plate.

N-5674A

*Exclusive feature

. . .as the chuck may be mounted on the

spindle*, merely swivel 180 .

Head-

stock has 1 hole* through the center

of the spindle, which permits

chucking

1" diameter, long work as illustrated.

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NORTON 10 x 20" Universal Grinder

Footstock

Diamond readily positioned
for grinding wheel truing. .

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by the use of the footstock type truing

N-6185

device using standard diamond shank.

Place and remove time reduced

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N-6186

through the use of lever type
footstock.

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NORTON 10 x 20" Universal Grinder

Sliding Table

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Set ups made easier. . . .

. . .by means of finger tip table reverse

lever and adjustable table reversal dogs

for fine adjustment by means of knurled

1

screws

Adjustable Table Reversal Dogs

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Table Start-Stop

Lever

Table Traverse

Grindltig Speed /? ,^r

Adjustment Knob .

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Trial and error tactics eliminated
in changing from grinding to truing

Table Reverse
/ Lever

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/ Right

Tabic i

Divel!

Control

Preset (Adjust able)

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N-6187

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♦Exclusive feature

. . . .through the use of the preset (adjustable)

truing speed. Grinding speed setting is
not disturbed in order to true wheel.*

NORTON 10 x 20" Universal Grinder

Operator safety insured

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N-6188

Annoying spray done away with and

easier loading of machine made possible

.through automatic disengaging of table

traverse
ated by hydraulic power.

handwheel when table is oper

Hand wheel

automatically reengages when table is

stopped.

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. . . .by hinged type water guard

extending the entire length
of the sliding table.

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NORTON 10 x 20" Universal Grinder

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Versatility of set up

Wheel Head

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Proper location of grinding

wheel spindles

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N-6015

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through the compound wheel slide design,
making it possible to swivel wheel head
to any angle and feed wheel at any angle

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any combination of both.

assured by quick positioning slides.

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NORTON 10 x 20" Universal Grinder

Enduring accuracy. . . .

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Convenient change of set up from
external to internal grinding. . .

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. . . .through half nut and feed screw wheel

feed construction.

N-5673A

. . . .by means of hinged bracket type internal

grinding spindle arrangement.

NORTON 10 x 20" Universal Grinder

Grinding wheel changes

quickly made

..............

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because of hinged wheel

guard construction.

Commercial attachments, such as high

frequency and air driven spindles are

readily mounted for special jobs. . . .

♦Exclusive feature

using scraped surface and dovetails*
at front of wheel head.

screw 4 screws to remove entire in
ternal grinding arrangements.
five minutes required to strip wheel-
head to look like this.)

Merely un

(Only

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NORTON 10 x 20" Universal Grinder

Base

Time required to change

coolant reduced. . . .

N-5947

Hydraulic tank filling and
draining time minimized.

. . .through use of clean out door*

and ramp for coolant tank

N-6181

. . .due to readily removable filling

cover and drain plug.

NORTON 10 x 20" Universal Grinder

Electrical Motors and Controls

Checking and routine maintenance

of all motors readily accomplished

;

N-5991A

because they are all mounted
on the exterior of the base.

Repositioning of headstock at right
hand end of swivel table made easy

. . .by electrical plug in socket for

work drive motor at right hand
end of machine as well as left.

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NORTON 10 x 20" Universal Grinder

Electrical Motors and Controls

Overload undervoltage protection for all motors

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N-6009

Greater operator safety

through the use of disconnect switch

and magnetic starter and over lead
relays.

. . .assured by 110 volt control circuit to

MASTER Start-Stop buttons controlling

entire machine.

Easy operation of headstock

N-6189

by Start-Stop-Jog control for headstock.

NORTON 10 x 20" Universal Grinder

Unnecessary

to

level machine

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as it has three cast pads A, B and
C in base on which machine rests.

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Operator can stand closer
to machine

...............

N-6287

as the lower front section

of the base is recessed.

Quick change in

set-ups by

NORTON 10 x 20

SUMMARY

interchangeable head and footstocks

” Universal Grinder

Rapid change over for
wheel truing through

Cleaning of coolant tank
made easy by

cam lock headstock spindle nose permitting
chuck to be left mounted on headstock

live, dead center headstock
compound wheel slide construction
hinged bracket for internal grinding spindle

selector valve making it possible to shift from

normal table traverse to slower speed for wheel

truing, without disturbing either speed setting

clean out door at sufficient height to permit

flushing and draining without the usual

inconveniences