Product Description
Vacuum-brake assembly for LNWR coaches built c.1890. This pattern suits the earlier 30'1", 6-wheeled stock of that period and the 28', 4-wheeled stock built for the Mansion-House services in 1890 and 1891. See also my separate print of similar assemblies for coaches with chain-operated and yoke-operated handbrakes.
Please note that the later 28' stock had different brake-gear based on a horizontal brake cylinder and this print is not suitable. Similarly, 30'1" coaches from c.1892 had the vertical cylinder.
Included in the print are:
The brake pipework is not included in the print because most of it would be too fine to print in 4mm scale. It can readily be represented in wire. Details of supports and fasteners between the longitudinal bearers have been left out because they are completely invisible in a finished model. However, the fittings in the outside of those bearers are present.
The dimensions were taken from the drawnings of A. M. Gunn, as reproduced in the book LNWR 30ft 1in Six-wheeled Carriages by Philip Millard.
Some parts of thin section have been strengthened to make them printable. Most of the hangers and securing straps were 0.5" thick on the full-size coaches and these are printed at a minimum thickness of 0.5mm. The forked part of the brake pull-rod is printed at a greater diameter than scale. Finally, the fasteners securing the parts are enlarged to 1" diameter, which I suspect is overscale but won't greatly affect the appearance of the print.
Please note that the later 28' stock had different brake-gear based on a horizontal brake cylinder and this print is not suitable. Similarly, 30'1" coaches from c.1892 had the vertical cylinder.
Included in the print are:
- vertical vacuum-cylinder;
- vacuum reservoir;
- cruciform brake-crank with hangers;
- forked end to the upper pull-rod, with safety loop;
- section of the coach's longitudinal bearers on which the other components are mounted.
The brake pipework is not included in the print because most of it would be too fine to print in 4mm scale. It can readily be represented in wire. Details of supports and fasteners between the longitudinal bearers have been left out because they are completely invisible in a finished model. However, the fittings in the outside of those bearers are present.
The dimensions were taken from the drawnings of A. M. Gunn, as reproduced in the book LNWR 30ft 1in Six-wheeled Carriages by Philip Millard.
Some parts of thin section have been strengthened to make them printable. Most of the hangers and securing straps were 0.5" thick on the full-size coaches and these are printed at a minimum thickness of 0.5mm. The forked part of the brake pull-rod is printed at a greater diameter than scale. Finally, the fasteners securing the parts are enlarged to 1" diameter, which I suspect is overscale but won't greatly affect the appearance of the print.
