Talyrond 51 Operating Instructions
Talyrond 51 Operating Instructions
Talyrond 51 Operating Instructions
TALYRO
Hi.
Operating Instructions
#-6*&
5 -
3/1 - 2 i i
/A/
THE R A N K O R G A N I S A T I O N
R A N K TAYLOR
HOBSON
LEICESTER, ENGLAND
Telephone: Leicester 23801
DIVISION
Telex: 34533
~Pa.o,e !
f-VfS "--
Contents
Part 1 INTRODUCTION
Page
The Model 51
Brief Description
Specification
Part 2 MANIPULATION
Mechanical Controls
Electrical Controls
Table of Magnifications
Centring the Specimen
Shape and Positioning of the Stylus
Orientation of Graph relative to Specimen
Effects of Magnetism
Step-by-step Use of Controls
Stylus Stop Attachment
13
11
13
15
16
17
,17
18
Shoulder Attachment
19
Measurement of Eccentricity ..
20
Part 3 FILTERS
Use of Filters
22
22
Pick-up Balance
..
..
Magnification ..
Test for Roundness of Spindle
..
..
... \ *\
23
23
23
Amplifier
26
30
31
33
31
Squaring-on of Table
Assembly and Removal of Spir.dle ..
Lubrication of Spindle
33
33
35
Part 6 MAINTENANCE
Service Instructions
LubricationGeneral
40
40
41
42
Part 8 ACCESSORIES
43
40
Page Two
...
..'.
.-
Part 1 Introduction
Model 51 Talyrond
THE Model 51 Talyrond' is a robust and
compact instrument, precision built and equally
suitable for use in the standards room or the
A
B
C
D
E
Spindle
Pick-ip
F
G
Recorder Unit
Power and Filter Unit
H
J
Amplifier Unit
Shoulder Attachment
Page Four
10,000 magnification).
Fig 1-2
CONSTANT RADIUS,
OF GAUGE
VARYING RADIUS
OF PART
RADIAL
CLEARANCE
PART
RING GAUGE
Fig 1-3
GRAPH
RADIAL CLEARANCE
ON GREATLY
ENLARGED SCALE
Page Five
Fig 1-4
Fig 1-5
Page Six
Brief Description
The Model 51 'Talyrond', shown in Figs. 1.1
and 1.6, comprises a vertical column D mounted
on a shallow base A. The front face of the column
position.
by handwheel C3.
Fig 1-6
Page Seven
Specification
Spindle^Accuracy
The spindle is tested at a uniform temperature between 66and 70''F., in a situation free from draughts.
Its accuracy is such"that in 95 per cent, of the tests made of a truly round test specimen, the maximum
departure of the trace from a true mean circle does not exceed one millionth of an inch (0,025 ;xm).
Measuring Capacity
Maximum height
..
..
..
..
..
Basic DimensionsInstrument
Overall height
Overall width
,,
.
..
Depth
Dimensions of work table
19 in. (482
..
37 in. (940
14 in. widex 15V in.
(370 mm x 400
..
..
mm)
mm)
deep
mm)
Overall width
Overall height
Overall depth
Weight ..
Electrical Supply
50 cycles
60 cycles
Filter Unit..
220-230V
110V
Amplifier ..
220-230V
110V
Voltage Regulator
Fuse Values
Page Eight
.L . . .
.-.....-
Part 2 Manipulation
Mechanical Controls
H3
H6
Fig 2-1
Page Nine
Fig 2-2
. -
-:..
. _..
G10
G7
G9
G8
G6
Page Ten
._,.
*V1*apgqMOTTO-,'*t**-. i<*um.*r
rr
--- ; :
- .
- "
centre the hole first with the arm only just inside
pick-up should be rotated manually by the handwheel E8, and clearance watched as the stylus is
lowered down the hole.
Electrical Controls
G10
Fig 2-3
Page Eleven
read.
lever E7.
Fig 2-4
187 "
131,
186 DtA.
135 DIA.
42/3749
Standard Tip
K42/3746
K42/3747
K42/3748
2Hn.
5 in.
10 in.
Nominal Length
(6,2 cm)
(12,5 cm)
(25 cm)
l-OOim
3-50 in.
8-50 in.
(2,5 cm)
(8,9 cm)
(21,6 cm)
Where special tip is required, tube and cross pin only can be supplied.
Page Twelve
nanmnBaMMMM
swing.
given below.
Coarse Adjustment
minimum.
200
400
000,5"
000,25"
1,000
000,1"
2,000
000,05"
4,000
000,025"
10,000
000,01"
2\" ARM
1 DIV.
5" ARM
100
1 DIV.
001"
10" ARM
50
002"
1 DIV.
200
000,5"
100
500
000,2"
250
000,4"
001"
1,000
000,1"
.... 2,000
000,05"
5,000
000,02"
1,000
000,1"
2,500
000,04"
500
000,2"
200
400
1000
2 000
1 DIV.
10am
..
5am
2fun
100
200
500
20 am
lO^m
4am
lam
1000
50
100
250
500
40{xm
20am
8 (Am
4am
2am
4 000
10 000
0,5am
0,2am
2 000
5 000
lam
0,4am
1000
2 500
2am
0,8 am
be avoided.
(1) 2\ in. (6,2 cm), 5in. (12,5 cm) and 10 in. (25 cm)
arms with tipsof \ in. (12,7 mm) radiusprotrud
ing 06 in. (1,5 mm) from the arm; these are
suitable for plain cylinders and cones, and will
enter holes down to f in. (9,6 mm) diameter.
(2) A 2\ in. (6,2 cm) arm with tips of -05 in. (1,3
mm) radius protruding 0-25 in. (6,3 mm)from
the arm; this is a general purpose ball-race arm,
suitable for the tracks of \ to \ in. (3,2 to 6,3
alike.
oio"
Fig 2-7
ois' radius***
"
V4 -V2
RADIUS
Page Fifteen
!itii-iL^i*iuiulWtaiJiMWaflEWH!iag.g
ensure this.
ii iiiiniMi
Effects of Magnetism
Voltage regulator
Power and filter unit (switch Jl)
positions.
Page Eighteen.
rfflOOCMS
^^wjawfflwat!yiUJV*^V^yS"?W^^
tan 6 =
Ms
'squared-on' position
E = eccentricity of the graph
M = magnification
r = radius traced by the stylus.
adjustment M 4SCREW.
OVERLOAD
SPRING.
STYLUS
ARM-
Fig 2-9
table.
Magnifications
Fig 2-10
Page Twenty
nMtfWKfcg!
to
finalize
the
Page Twenty-one
Part 3 Filters
Use of Filters
Fig 3-1
Normal
3 r.p.m.
1-450
1-45
1-15
15-450
Amplifier
Filter Unit
Pick-up
men).
The acceptable balance criterion is that, with the
instrument set as specified above, the needle of the
centring meter E6 should not swing from its ex
Pick-up:
informative.
is made.
touch:
4. Electricalfaults, including:
(a) Bad contacts, e.g., dirty or scoured sliprings. Generally shown by an uneven 'spiky'
trace (see Maintenance, Part 6).
Page Twenty-four
Fig 4-1
Fig 4-2
Magnification x 2,000
Stylus Arm length
2J in. (6,3 cm)
D2-DI
3-8"-2-3"
Mag"
2,000
= -000750" or 750a"
Page Twenty-five
Fig 5-1
J3
(500mA)
Mains Fuses
(3 Amp. 50 ~)
(5 Amp. 60 ~)
Cathodes within 4- 10V of earth potential (Control Unit outOperation Switch to Test)
Page Twenty-six
PRE-SET
POTENTIOMETERS H and J
75 V
V2a anode
Fig 5-2
230 V
Via anode
280 V
V6a anode
230 V
Regulated
V6b anode
H.T.
Page Twenty-seven
EARTH
60 Cycles
4HJ
EARTH
A.C. Mains
Mains Fuses
(2 Amp. 50 cycles)
(3 Amp. 60 cycles)
H.T. Fuse
( Amp.)
MainsVoltage
240 V
V3a anode
150 V
Pen Central)
V5 anode
650V
90-150 V
V8 anode V5 screen
Unregulated According
l_l 7
to setting
of H
Page Twenty-eight
Fig 5-3
Fig. 5.2.
Each adjustment has to be made with the
Operation switch:
talyrond
Magnification switch:
Position 6.
Filter unit operation switch: normal.
Pick-up:
s & ext.
Adjust potentiometer H until the pointer on the
centring meter is towards the left-hand end of the
curved line on the dial. The setting is acceptable if
the portion of this line extending beyond the lefthand division is imagined to be halved and the
pointer comes in the outer half.
C. Bridge voltage.
Control unit:
In.
Page Twenty-nine
Control unit:
Withdrawn.
An a.c. valve or metal-rectifier voltmeter of
Valve voltmeter
..
.. 5-75i V r.m.s.
Any 1000 ohms per voltmeter used:
10 V range (10,000 ohms) .. 5-5
25 V range (25,000 ohms) .. 5-7
Amplifier:
to test.
..5-0
.. Unsuitable
4-6
Withdrawn.
Operation switch:
normal.
Magnification switch:
Position 6.
Potentiometer G is adjusted to give 0-35 mA
002 through the meter. The potentiometer can be
turned with a fine screwdriver after removing the
plated cover screw K7, Fig. 5.2. It is not expected
that adjustment will often be needed.
Withdrawn.
Operation switch:
test.
Magnification switch:
Position 6.
Potentiometer J is adjusted to give 003 mA
through sockets E. The adjustment, which is not
very critical, is just within the scope of a 0-1 mA
meter, if the meter is tapped to overcome pivot
friction. The factory setting is marked with paint
spots and generally this will suffice.
(e) Filter C Zero
Filter unit operation switch: Position C.
Depress lever E7 towards the head to bring the
pen on the paper.
Filter unit:
Pick-up:
step.
Page Thirty
X
il.. i u u u' i lwii mjmiLWM iii ijD.mii.nw vi i jgfrJM-jjjfl
well-ground screwdriver is essential. Set the righthand potentiometer to its mid position as nearly
as can be estimated, slacken the two lock screws
Adjustment of Magnification
filter unit.
Page Thirty-one
Fig 5'6a
Fig 5*6b
Page Thirty-two
Fig 5-7 I
C5
C6
C7
is eliminated.
Squaring-on of Table
The work table is supported on three selfaligning pads C5, C6 and C7, mounted on the top
surface of the knee (Fig. 5.7). These pads are posi
tioned one at each of the front corners of the table
final centring.
Page Thirty-three
WOBBLE PIN
SUPPORT
BLOCK
KEY POST
Fig 5-9
17.
lead
(8 way) into their respective sockets in the
head. Close plug covers.
Lubrication of Spindle
The 'Talyrond' spindle needs oil of the right
quality and of the utmost cleanliness.
Specially prepared oil (Talyrond' spindle oil
'B'), filtered with great care, is available in hyperdermic syringe cartridges from which it can be
injected into the spindle without the slightest
exposure to dust-laden air.
The cartridge has the form of a glass tube closed
at one end by an oilproof rubber cap and at the
other end by an oilproof rubber piston. It contains
2 c.c. ofoil, which will generally suffice for two shots.
Page Thirty-five
Type B:
for Double-ended
Needles
Insert double-
ended needle
into assembly
Fig 5-10
(piercer) end
INSTRUCTIONS
towards the
syringe
ture
SYRINGE PLUNGER
FINGER GRIP
Screw in
needle
ing spring.
4 Release pressure on
retaining spring;
the
Page Thirty-six
,.-.- m|
- .-.1
-; ysz. . 'W\
Fig 5-11
OIL
HERE
SHARP
TIP TO
PUNCTURE CAP.
Page Thirty-eight
Fig 5-12
MAINS
U-
FILTER CIRCUITS
POWER
PACK
! I VOLTAGE
j j REGULATOR
"J
DC. SUPPLY TO
|Jv1AInV"\
""j
'DRIVE MOION
AMPLIFIER
i
Ho
L
n
SIGNAL AMPLIFIER
i.......
PRESET
CONTROLS (A)
CONTROL UNIT
OPERATIONAL
MAINS \ I
4-t
FINE
ADJUSTMENT
MAGNIFICATION
SWITCH
OPERATION
SWITCH
3>
FILTER
SWITCH
nil 111
MAGNIFICATION CONTROLS
AMPLIFIER
DRIVE
MOTOR
PICK - UP
MAINS CIRCUIT
WITHOUT
CIRCUIT DIAGRAM
VOLTAGE
REGULATOR
Fig 5-13
Page Thirty-nine
Part 6 Maintenance
Service Instructions
Brush Pressure
The pressure of the brush contacts on the sliprings is controlled by the grub screw which projects
from the adjusting plate secured to the contact
support. The grub screw is set to engage the flat on
the cover retaining post. Adjustment will be neces
sary, depending on contact wear.
Slacken off the grub screws in the contact sup
port and set the contacts lightly touching the sliprings. Tighten grub screws. If necessary set contact
arms by careful bending, to bring each set of con
tacts vertically in line for simultaneous engagement
with the slip-rings. Check that the contacts wipe
central to the rings and do not foul the ring
spacers.
Pick-up Contacts
pick-up.
Page Forty
spindle contacts.
To clean the contact rails remove either end
Replacement of Table
seating cups if
flats uppermost.
on underside of
traces of the old
grease.
as possible.
4. Screw out the table control knobs until the pitmens can be removed from their locating
Part 5).
Page Forty-one
Code No.
614/730
112/843-S (English) 4-pin Mains Plug (110 volts, 60 cycles)
112/843M-S (Metric) 'Masterform' Instrument Stand
112/635
Model 51 Talyrond' 110V, 60 cycles 112/844-S (English) Glass Standard
112/436
112/844M-S (Metric) 100a" (2,5am) Radial Calibration Standard
Spindle
112/430
112/434
Model 51 Talyrond' 240V, 50 cycles
614/81
3 amp Fuse
5 amp Fuse
120 4
500 mA Fuse
Syringe Tube
Set of Hex. Wrench Keys
112/337
120/83
120/116
120/152
120/166
112/543
112/547
112/548
112/551
116/58
Code No.
614/817
614/815
614/410
614/407
614/409
614/398
614/817
614/629
614/409
112/726
&z3i- ^a^*2^
Part 8 Accessories
Fig 8-1
Accessories supplied
with each instrument
are shown in Fig. 8.1 neatly housed in a
Optional Accessories
Optional accessories available and their various
uses in conjunction with the Model 51 Talyrond'
are listed and briefly described. Instructions for
their use will be supplied with each accessory.
Reference Computer.
measured.
Page Forty-three
Accessories continued
Stylus Kit. Code No. 112/821-S
This kit provides a range of components from
which the user will be able to produce a variety of
stylus arms to suit his particular requirements, e.g.
multi-tip stylus arms for concentricity checks.
Patents
Canada
U.S.A.
Germany
Switzerland
694,423
706,763
706,838
716,719
722,135
517,868
526,265
532,759
569,145
2,606,093
2,701,170
2,723,461
2,741,517
840,445
924,846
1,029,624
1,037,773
304,822
Page Forty-four