596 
Report on the Trials of 
shafts. When on the road, the attendant sits on the press as in 
a cart, and drives the horse. AVheu at work, the press-body is 
vertical and the platten below. The latter is furnished with a 
lateral slide for receiving the charge of hay, and it is raised, by 
means of ropes wound upon a barrel, operated by a winch and 
gear of two movements. When the pressing is completed, the 
platten falls by its own weight, the winch being slipped out of 
action, and its too rapid descent is checked by a brake under 
control of the attendant. The ratio of movement between 
winch and platten at the moment of maximum pressure is 
256 to 1, or, with one man exerting 50 lbs. pressure on the 
winch, 5" 7 tons on the platten, and 11 '4 tons when two men 
press. The press did not obtain the required density, and was 
excused from a second trial. 
Article No. 22G4, exhibited by Barforcl & Perlcins, of Peter- 
borough, was a duplicate of No. 2263, already described, with 
the addition of a device for weighing the hay before baling, and 
thus ensuring uniform trusses. The design of the steel-yard is 
simple, adding little to the complexity of the machine, and not 
in any way inconveniencing the men. The weighing device 
unfortunately failed in the trial, not on account of any inherent 
defect, but simply because the notches for carrying the steel- 
yard weights were too shallow. The shaking of the machine 
when at work shifted the weight, and gave all sorts of results. 
The case again illustrates the danger of putting a "first machine" 
into trial. This press was excused a second trial. 
Article 3868, exhibited by William Wanies, of King's 
Lynn, was practically a duplicate of the press tried in Class 3 
(see page 589). Warnes's Press was now, however, in presence, 
not only of the machine which had beaten it in Class 3, but of 
several other much more formidable competitors than it had 
met in that class, and, although it was ordered for second trial, 
its chances of final success were not great. 
Article 3802, exhibited by William Foster dfc Co., Limited, 
of Wellington Foundry, Lincoln, was a double-acting machine, 
consisting of a platten moving vertically between the floor and 
the roof of the press, matters being so arranged that the top 
press received a charge while the bale, previously formed below, 
was being tied. 
The platten is operated by two vertical screws, standing one on either 
side of the machine, wliich do not themselves revolve, but are furnished 
with nuts, toothed peripherally, and actuated each by a tangential screw, 
as in the well-known "Haley " screwjack. 
Tlie ratio of movement between the platten and winch-handle is 480 to 1, 
equal to a pressure of lOJ tons on the platten, one man turning the handle— 
or Jouble this with two men turning. 
