Identification & quantity of components on fret:
1. 5ft distant arm (1)
2. 5ft home arms (2)
3. 4ft distant arm (1)
4. 4ft home arms (4)
5. 3ft home arms for sidings etc. (2)
6. Spectacle plates (10)
7. Backlight blinders (10)
8. Cranked balance levers (10)
9, 9a, 9b. 3ft restricted clearance centre balance arm, spectacle plate and boss (1)
10. Calling-on arms (2)
11, 11a, 11b. 4ft restricted clearance centre balance arm, spectacle plate and boss (1)
12. 2ft4in disc for use under platform canopies (1)
13. Rule 55 track circuit diamonds (2)
S0014 4mm scale Great Western Railway wooden lower quadrant signal arm fret
This pattern of signal arm was introduced by the GWR in 1887, and was used for new installations and renewals until the advent of steel arms (S0015) in 1930. Note that the 5ft arms are for use on posts greater than 26ft tall.
The actual size of the fret is 85 x 53mm; it is etched in 0.012" brass.
To model a complete signal as shown below, you will need: a wooden post (S006 or S0028); a finial (SC005); a lamp (SC004); a balance weight (SC0041/1); a ladder (S009 series); and a platform (S008/5). A very few signals had a lattice post (S002, S0023).
To see exactly what is involved in using these parts, download the instruction sheet as an Adobe Acrobat® file (102kb).
Model by Ken Gibbons