Single swivel
Single swivel
(becket optional)

General details

Block sizes are the approximate length of shell.

All blocks are made of ash, copper riveted and highly varnished.

Frames are cast in aluminium bronze for high strength.

Axle pins are square headed and manufactured from 316 stainless steel.

 
Colin Frake, Blockmaker
 
     

Bronze sheaves are also available, prices on request.

Although blocks do not come tested, we can give approximate breaking figures.

Back

Size
(inches)
Pin dia
(inches)
Sheave dia
(inches)
Rope size
(dia in mm)
3 1/2
3/8
2
10-12
4
3/8
2 1/4
12
4 1/2
7/16
2 1/2
14
5
7/16
3
14-16
6
1/2
3 1/4
16-18
7
5/8
4
20
8
3/4
5
20-22