aS eS oe 
Charles Grafton Page. = 
Another machine constructed by Prof. Page, and described 
in this Journal for Oct., 1838, consisted of a U-formed electro- 
magnet of iron wires, around this an extra coil of wire for in- 
duced currents in addition to the coil for the battery current, 
and an iron armature made to rotate before the poles of the 
electro-magnet, together with a rotating circuit breaker for the 
battery current made adjustable on the shaft of the rotating 
armature. Induction could be produced in the extra coil of 
wire, without breaking the battery circuit, by the magnetic 
disturbance consequent on the passage of the rotating arma- 
ture across the poles of the electro-magnet. But on bringing 
into play, and properly setting, the breaker of the battery cir- 
cuit, the motion of the armature was maintained by the bat- 
tery, and by leaving opened or leaving closed the circuit of the 
extra, or induction coil, and varying the set of the rotating 
circuit breaker on the armature sha t, some curious and in- 
structive results were produced in illustration of the influence 
of induced currents upon the motion of electro-magnetic en- 
gines, for the detail of which we must refer to the paper al- 
luded to. 
In the same volume of this Journal he also describes a mag- 
neto-electric machine, similar to the machine of Saxton, which 
he constructed on a large scale, and in which he provided the 
rotating pair of armatures with commutators by which the al- 
ternating induced currents of the armature coils were made to 
s all inone direction through a conductor joining the ex- 
tremities of the wire of these coils. The armatures were 
straight iron bars ten inches ae parallel to the axis on which 
they rotated, and covered, each, with 800 feet of No. 20 cop- 
per wire, and were placed between a pair of powerful com- 
pound permanent magnets, one at each end of the armatures. 
The two coils could be used as 800 feet of double wire, or 
1,600 feet of single wire. With this machine water was de- 
composed very rapidly, and by breaking the circuit of the coils 
a half inch spark was produced, and a variety of interesting 
results is detailed which we have not room to repeat here, 
Another magneto-electric machine constructed by him, and 
still more remarkable for the results obtained with it, is the 
subject of a notice in the Patent Office Report, for 1844, re- 
produced in the 48th vol., Ist series, of this Jo y the 
current from this machine an electro-magnet was chawied to 
such a degree as to sustain one thousand pounds, Unfortu- 
nately, no complete description of the machine is in existence 
as we know. e machine itself was presented to the 
