THE CABLE SHIP ON REPAIRS. 



355 



hauling machine is conveniently run from the ship's winch by 

 means of an endless messenger rope. 



A hauling machine coupled direct to a small high-speed 

 Brotherhood steam engine has been brought out by Messrs, 

 Johnson and Phillips (Fig. 206), for which all the prepara- 

 tion necessary is to make an inch steam connection to the 

 donkey boilers, generally a flexible steam-pipe. There is a 

 small countershaft with pinions (B and C) for reducing the 

 speed. The first pinion A is keyed to the engine-shaft, and 

 the pair D E are fast to a sleeve running loose on the shaft. 



Fig. 206.— Portable Hauling Machine. 



Fig. 207 shows a hauling machine driven by a 5 B.H.P. electric 

 motor. The motor is totally enclosed and shunt wound with a 

 few series turns to assist the starting. The pinion, Sin, diameter, 

 gears into a 30in. wheel, giving a reduction of 6 to 1 on the 

 first motion shaft. A second reduction between this and the 

 hauling shaft is in the ratio of 10 to 1, the total reduction 

 being 60 to 1. The motor speed is 720 revs, per min., giving 

 12 revs, per min. on the driving shaft. With a cable sheave 

 5ft. 6ln. in diameter, the hauling speed is a little over 2 miles 

 per hour. This gear Is suitable for hauling heavy types 

 of cable. It is convenient to have a small range of shunt 

 and series regulation so that the speed can be raised or reduced 



A a2 



