MOUNTINGS, DIAL, AUTOMATIC

Mounting, Dial, Automatic No. 1

Dial mounting used on switchboards when a Dial, Automatic No. 1, 3
or 6 was installed.

Mounting, Dial, Automatic No. 3

Straight mount used on the Dialling-Unit No. 1 and Telephone No. 44B

Drawing - 7988.

Introduced circa 1919.

Mounting, Dial, Automatic No. 4

For Dials, Automatic No. 1, 3, 6 or 8 on switchboards.

Includes a Bracket, Mounting M, Jack No. 8 and Plug No. 402.

Superseded by Mountings, Dial No. 5.

Mounting, Dial, Automatic No. 5

Straight mounting that can be used with a Mountings, Dial Automatic No's 10, 11 and 12 to angle the dial.

Used with Dials, Automatic No. 1, 3, 6 and 8.

The Mountings, Dial, Automatic No. 5 is shown at the bottom of the picture.

Drawing - 8504 (Mark 2).

Includes a Plug No. 402.

Locates in a Bracket, Mounting P and Jack No. 8.

Mounting, Dial, Automatic No. 6

For Test desks, manual switchboard positions etc.

Includes:-
1 x Part No. 1/SBL/4.
1 x Part No. 2/SBL/6.
2 x screws for fixing.

To be requisitioned separately as required:-
1 x Clip No. 27 (for fixing).
1 x Cord, Instrument No. 3/39E, 2.5" or No. 3/58E, 2.5".

Superseded by Mounting, Dial, Automatic No. 23A.

Drawing - 7731.

Mounting, Dial, Automatic No. 7

Angled mount, of 14 degrees, for Dials, Automatic No. 1, 3, 6, 8 or 10 when fitted on wooden wall telephones.

Made of mild steel with a Coslettized finish that is stove enamelled dull black.

Dimensions
72mm External diameter of base.
22mm at high point.
8mm at lowest point.
55mm internal diameter.

Introduced circa 1925.

Drawing - 8586.

Mounting, Dial, Automatic No. 8

For Switchboards, AT and the Telephone No. 119. Used for mounting a dial at 35 degrees from vertical or horizontal as required.

Uses Cord, Instrument No. 5/04E, 8".

Superseded by Mounting, Dial, Automatic No. 23.

Drawing - 7731.

Mounting, Dial, Automatic No. 9

For Test desks, manual switchboard positions etc. It is angled at 35 degrees and can be mounted vertically or horizontally.

Finished in Black enamel.

Includes:-
1 x Part No. 2/SBL/4.
1 x Part No. 3/SBL/6.
2 x screws for fixing.

To be requisitioned separately as required:-
1 x Clip No. 27 (for fixing).
1 x Cord, Instrument No. 3/58E, 2.5" or No. 5/19E, 2.5".

Superseded by Mounting, Dial, Automatic No. 23A.

Drawing - 7731.

Mounting, Dial, Automatic No. 10

Angled adaptor for converting a Mountings, Dial No. 5 to sloping top, with an angle of 60 degrees from the horizontal.

Drawing - 9246 (Mark 2).

See below.

Mounting, Dial, Automatic No. 11

Angled adaptor for converting a Mountings, Dial No. 5 to sloping top, with an angle of 15 degrees from the horizontal.

The Mounting, Dial, Automatic No. 11 is the centre piece.

Drawing - 9428 (Mark 2).

Mounting Dial, Automatic No. 12

Angled adaptor for converting a Mountings, Dial No. 5 to sloping top, with an angle of 30 degrees from the horizontal.

Drawing - 9429 (Mark 2).

See above.

Mounting Dial, Automatic No. 13/1

For Auto-manual Jack-ended "B" and I/C trunk positions where pneumatic tubes are fitted.

Sloping top, with angle of 15° from horizontal.

Includes:-
1 x Bracket, Mounting DN with Screw, Clamping No. 1.
1 x Part No. 2/SBL/4.
1 x Part No. 3/SBL/6.
1 x Part 1/SPL/110.
3 x Screws for fixing.

To be requisitioned Separately:-
1 x Cord, Instrument No. 5/19E, 24".

Drawing - 9888.

Mounting, Dial, Automatic No. 15

Sloping top, with an angle of 45 degrees from the horizontal.

The top of the mounting separates from the mounting plate.

Drawing - 60194 (Mark 3)

Mounting, Dial, Automatic No. 16

The support for the dial is a Bakelite moulding, the special long securing-screw for the dial being accessible from the front. The metal slide has felt guides for smooth action, and Bakelite fastenings are provided on both the slide and mounting to secure the cord which connects the dial to the terminal block. This cord is similar in type to those used on switchboards, to allow great flexibility, and is connected directly between the dial and terminal block. The mounting and slide can be separated by removing the cross bar.

The dialling unit includes the following parts:-
1 x Cord, Instrument, 5/29, Brown, 18in.
1 x Block, Terminal, No. 20/8, Black.

The dial would be requisitioned separately.

Normally fitted with a Dial, Automatic No. 10 and used with a Bell-set No. 37 and Telephone No. 246.

Introduced circa 1938.

Superseded by the Mounting, Dial No. 19.

Mounting, Dial, Automatic No. 17

Used on Switchboards or Teleprinter switching schemes. Fitted horizontally.

Includes:-

1 x Part No. 2/SBL/4.
1 x Part No. 1/SBL/7.

To be requisitioned separately as required:-
1 x Cord, Instrument No. 5/19E, 24"

Drawing - 62046 (Mark 2)

Mounting, Dial, Automatic No. 18

A straight mounting generally used on testers. 0.5 inches high.

The mounting, below left, is a PX/1 variant and has a sliding plate for the dial fixing screw.

The mounting, below right, is a PX/2 variant and has just a hole for the dial fixing screw.

Drawing - 63260 (Mark 2).

Mounting, Dial, Automatic No. 19

A sliding dial mounting which is fixed to a desk. The mounting is wired to a Block Terminal No. 21/5.

Normally fitted with a Dial, Automatic No. 12.

Introduced circa 1959 and superseded the Mounting, Dial No. 16.

Superseded by Mounting Dial No. 21.

Made by Plessey.

Drawing - 90027.

Mounting, Dial, Automatic No. 20

Mounting with an angle of 45 degrees.

Superseded by Mounting, Dial No. 23A.

Drawings - 91494 and 91521.

Mounting, Dial, Automatic No. 21

This mounting is used with Dials, Automatic No. 21 or later.

This mounting consists of a plastic tray, which holds the dial. The plastic tray is normally located in a metal holder. The metal holder is fixed to the underside of a desk.

When the dial is to be used, the plastic tray is pulled outwards and then dropped down to lock it in the open position (as in picture). The tray is closed by lifting the tray upwards. The tray is then pulled back into the metal holder by a two springs.

Used with Bellset No. 48 and Telephone No. 713 or Jack Unit No.1.

Produced only in the colour grey.

Made by ETL, their part code N24465A1.

Drawing - 92218.

Additional pictures