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The description "Gauges, Feeler" is applied to tools
consisting of a number of thin steel strips and wires of a known thickness.
The strip gauges are marked with a number, which indicates the thickness in
thousandths of an inch. The individual gauges which form part of a set can
be obtained for replacement purposes and are described in each case as Part
No.... of the complete set, the number of the part corresponding to the
thickness of the gauge required, e.g. should the 8-mil gauge forming part of
" Gauges, Feeler, No. 1 " be required, it will be requisitioned as " Gauges,
Feeler, No. 1, Part No. 8.
| Gauges, Feeler No. 1
Consists of 17 strip-gauges, varying from 2 to 18 mils in thickness.
Each gauge is approximately 2.3in. long overall and 5/8in. wide and is
bent twice at angles of 135� to the centre portion. A hole 0.185in.
diameter is situated near one end. The set is contained in a metal
drawer-like box.
The gauges are used for checking the armature travel of relays and
contact openings on relays and other mechanisms.
The following additional gauges are available for special cases where
the bent parallel type of gauge is unsuitable. These special gauges are
known as parts of the set "Gauges, Feeler, No. 1" but should be
requisitioned separately as required.
For these special gauges, a suffix letter is included in the number
of the part as follows:-
A should be added when a bent, tapered type of gauge is required
B when the flat strip 3.75in. long and 3/16in. wide is required
C when the wire type of gauge is required
D when the flat parallel strip 3 in. long and 0.5in. wide is
required.
The following sizes are available:-
A type - 10, 12 and 16 mils
B type - 2, 6 and 10 mils
C type - 10, 12, 20, 22, 31 and 40 mils
D type - 10, 15 and 20 mils.
In each case the part number corresponds to the thickness, and is
etched on the flat-type gauges. Wire-type gauges will in future have a
small disk tag attached to the ring end, indicating the size.
Individual gauges should be ordered thus Gauges, Feeler, No. 1, Part
31C" this indicates that a wire type gauge 31 mils in diameter is
required.
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| Gauges, Feeler No. 2
Consists of four double-ended gauges contained in a
metal box. Each of the four gauges is 3.5in. long and consists of two
different sizes of either strip or wire, joined together by means of
brass strips. Two strips 5 and 10 mils thick, and two strips 12 and 7
mils thick, are joined together so that a different thickness of strip
appears at the ends. The wire gauges consist of two brass strips, each
1.5in. long, 0.25in. wide and 0.1in. thick, joined together by two
screws, which form the holder for the wires, which are 10, 12, 20 and 30
mils in diameter.
As the screws are tightened, the two brass strips are
brought together to grip one end of the wire or strip. This enables any
of the gauges to be changed should they become damaged. The set of
gauges is used for checking the adjustments of mechanically-operated
springs and wipers of 2000-type two-motion selector mechanisms.
Set of 4 double ended gauges (5 + 10, 7 + 12, 12 + 20 and 10 + 30 mils).
Click on the picture to enlarge
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| Gauges, Feeler No. 3
Consists of eight tapered strip gauges, 2, 3, 4, 6, 8, 10, 12 and 15
mils thick. The gauges are assembled together in a penknife type of case
by means of a screw. The gauges are used for checking the adjustments of
the transmitting and receiving mechanism of teleprinters.
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| Gauges, Feeler No. 4
Consists of 19 steel strip gauges, shaped as shown.
The gauges are 2in. long and 0.5in. wide and are held together by a
hinged ring, which is threaded through the holes provided near one end
of the gauges. The gauges are provided for checking the adjustments of
A.E. Co.'s line and out-off relays. One each of the following
thicknesses is included in the set: 8, 10, 12, 18, 20, 22, 24, 25, 27,
28, 29, 30, 32, 33, 35, 37, 43, 45 and 47 mils
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| Gauges, Feeler No. 5
Consists of three strip gauges, two of Type A and one
of Type B. These gauges are 2in. long and 0.5in, wide and are
accommodated in a small, fiat, leather case. The A type gauge is 5 mils
thick, and the B type 2 mils The gauges are provided for checking the
adjustments of Siemens' No. 16 uniselectors.
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| Gauges, Feeler No. 6
Consists of 15 tapering gauges, each 2.5in. long. At
one end of each gauge is a hole, through which a hinged steel ring is
threaded to keep the gauges together. The end opposite the hole is
offset at 90 degrees. The set is composed of gauges of the following
thicknesses: 10, 12, 15, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36 and
38 mils and is used for checking the adjustments of the springs of S.T.
& C. universal-type relays. |
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| Gauges, Feeler No. 7
Consists of eight gauges, of the same shape as the
gauges in the set "Gauges, Feeler No. 6". The following thicknesses are
included: 1.5, 2, 3, 4, 5, 6, 7 and 8 mils. The gauges are used for
checking the adjustments of the armatures of S.T. & C. universal-type
relays. |
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| Gauges, Feeler No. 8
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| Gauges, Feeler No. 9
Consists of 20 gauges, one each of the following thicknesses: 19, 21,
22, 23, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 40, 41, 42, 44, 45 and
46 mils. The gauges and container are similar in shape to "Gauges,
Feeler, No. 1". Provided for checking the armature travel of 3000-type
relays. |
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| Gauges, Feeler No. 10
Consists of 17 trade-type taper gauges 2 to 18 mils in thickness,
contained in a leather case, "Case, Gauges, Feeler, No. 10", which may
be separately requisitioned if required for replacement. The gauges are
for general purposes.
Set of 17 gauges (2 - 18 mils) for use on 2000 type Selectors and Uniselectors
2 and 3. Supplied in a leather case.
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| Gauges, Feeler No. 11
Three gauges, 15, 20 and 25 mils. Used on Transmitters, Automatic
No's 3A, 4A and 5A. |
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