Agricultural Steam-engines at Newcastle. 689 
the Simple Engine Class. How would matters stand when 
McLaren's Compound and Foden's Simple Engine had done 
their work on Monday night? It was an interesting, and, for 
the competitors, exciting question. 
There is no need to speak at any length of Messrs. McLaren's 
Compound, which, saving in the use of two cylinders instead of 
one, is identical with the Simple Engine by the same makers 
already described, only the high-pressure cylinder being 
provided with a cut-off slide, which, as in the Simple engine, 
is controlled by a Hartnell-Turner governor. 
The exhibitors elected to run at 135 revolutions, and a 
pressure of 155 lbs., with a brake-load of 20-horse-power, Mr. 
Henry McLaren again acting as fireman. 
Before the trial run had begun a leak declared itself, which 
made it necessary to remove the cover of the high-pressure 
cylinder, and to plug with wood a half-inch hole through 
which the jacket of the cover itself was supplied with steam. 
During the run, another "difficulty" occurred. The 
" Crosby " sight-feed lubricator partially failed of its office, 
with the result that the slide-valve of the small cylinder 
" seized " and caused its eccentric strap to heat badly, Mr. Mc- 
Laren plied his oil-can vigorously, but without avail ; the 
eccentric strap was hot, and growing hotter. Some fire-box 
stays, too, were dripping during the trial ; so that when the run 
terminated, it is not to be wondered at that the Paxman Com- 
pound performance remained unbeaten. 
This engine ran 4 hrs. 24 min. actual, and 4 hrs. 51J min. 
mechanical time, taking a supply of 202^ lbs. of coal, equal to 
a consumption of 2*18 lbs. of coal per horse-power per hour. 
Simple Traction Engine, by Messrs. Edward Foden Sons 
fXo. 3114). — This engine, the last on the list, was tried on 
Monday the 11th, simultaneously with McLaren's Compound. 
During its preliminary run some adjustment of the " Farcot " 
valve required to be made, but all was in order when the trial 
run commenced. 
Foden's Simple Engine is practically a duplicate of his Com- 
pound Engine, which has already been fully described. The 
exhibitor elected to run at a speed of 168 revolutions and a 
pressure of 120 lbs., with a break-load of 12 horse-power, rather 
a light load for an engine of such dimensions. The governor 
" hunted " somewhat during the trial, as in the case of the 
Compound Engine, but the engine ran smoothly and steadily, in 
spite of a somewhat too sensitive control. It made 4 hrs. 
23J min. actual, and 4 hrs. 30 min. mechanical time, with a 
coal supply of 138;^ lbs., equal to a consumption of 2*76 lbs. of 
coal per horse-power per hour. 
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