Miscellaneous Imjplements Exhibited at Warwich. 533 
hit and miss governor, while the inlet and exhaust valves are 
actuated by a vibrating lever and rods from eccentrics on the 
crankshaft. 
The ordinary speed of the engine, though much lower than 
that of other gas engines, is claimed to be more uniform when 
running on full load and taking an explosion at every revolu- 
tion . 
Messrs. Crossley Brothers., Ltd., Manchester (Stand 261). The 
general design and excellence of the work in the engines of 
this firm are familiar to visitors to the Show. Though for 
some years they held a practical monopoly, they have kept pace 
with the requirements of the times, and with their present 
exhibit of six engines, ranging from 3 to 85 horse-power, they 
may fairly claim to maintain the position they have earned. 
In connection with their 33 horse-power engine (Art. 4107) 
is exhibited a new self-starter, which certainly meets the neces- 
sary requirements of giving the engine the desired double 
revolution better than jnany others which claim to do so. The 
starter consists of a hand-pump with gas and air inlet valves so 
proportioned that just the proper admixture shall be pumped into 
the cylinder. To start the engine, the crank is placed so that 
about one-third of the forward stroke shall have been travelled, 
and the air valve is pi’opped open. The hand pump is then 
started, first of all charging a considerable length of pipe 
between it and the cylinder with the gas and air mixture, as 
also the air pipe. The air valve is then closed, and a light is 
applied to a small valve on the hand-pump. This causes an 
explosion in the pipe communicating between the pump and the 
cylinder, Avhich, in the act of explosion, drives a certain amount 
of the charge in front of it, and therefore considerably compresses 
the charge in the cylinder previous to firing it. At the next 
outward stroke of the engine the charge is taken from the 
mixture which had been pumped past the air valve, when propped 
open, into the air pipe or box. It is claimed that with this 
arrangement the engine can be started with a considerable 
load on. 
III. Oil Engines. 
At the Society’s Meeting at Plymouth in 1890, when a special 
prize was offei’ed for engines of this class, only two competitors 
came to the front, and while the results obtained by one of these 
engines were eminently satisfactory, the other engine proved 
itself to be in a very crude state of development. 
Since then, one or more additional engines have been 
presented, but the excellent collection exhibited this year bore 
