GPO - REPERFORATORS

The GPO telegraph reperforator (receiving perforator) is a telegraph machine which receives 5-unit code signals and converts them to perforations in a parchmentised paper tape.

Educational Pamphlet - Outline of operation and mechanical arrangements

The machine consists of the following units mounted on a base casting:-

A driving motor and governor similar to those used on a Teleprinter.
An automatic start-stop switch.
A Teleprinter type electromagnet unit.
A selecting mechanism.
A perforating head.
A tape roll holder.

Reperforators No. 1A
See Telegraphs, Teleprinter H1012.

Reperforators No. 2
See also Teleprinter Automatic-Transmitter No. 1B

This is a receiving instrument only which produces fully-perforated tape without printing. The latest version (Mark 3) has overall dust cover and RUN-OUT button to enable blank tape, perforated with feed holes only, to be fed from the machine to clear the end of a message from the punch block.

The Mark III is made by Creed, their model 7TR/3.

Includes:-
1 x Block, Terminal No. 21/5.
1 x Plug No. 903.
1 x Cord, Instrument 3/73L, 60".
1 x Plug for Socket-outlet No. 8, with Cord 3/73L, 60".
1 x Dust-cover.
1 x Motor, Electric, D.C., No. 13A.
1 x Tape roll holder.

Diagram - TG(L) 1098

See also E.I. Telegraphs, Teleprinter H1001.

Reperforators No. 5
See E.I. Telegraphs, Teleprinter H1015.

Pictures