506 Report on the Trials of Implements at Wolverhampton. 
Plot B in Field No} XIT. \2-IIm^xe Portable Engine and Detached' 
Windlass JSet of Mr. Edward Hayes, of Watliny Works, Stony Stratford, 
BucMnghamskire ; consisting of a ]2-horse jTOwer portable engine, with single 
cylinder of lOJ inches diameter and 16 inches stroke, patent "self-acting" 
windlass, 1400 yards of steel-wire rope, snatch-blocks, claw-anchors, two 
self-travelling anchors, rope-porters, 5-tine turning cultivator, &c. (Catalogue 
No., 3696). Price 580Z. To the crank-shaft of a common portable engine 
Mr. Hayes aflixes a belt-rigger, having a i)eriphery of 21 inches breadth, the 
shaft being elongated for the purpose, or otherwise ; the rigger, attached by 
clasps to the arms of the fly-wheel and a small pulley for tightening the 
driving-belt, is mounted upon a bracket temporarily clamped upon the felloe of 
one of the front-wheels of the engine; this pulley having ample sideway play 
npon its axis, and thus accommodating its position to the place occupied by 
the belt upon the broad driving-rigger. The belt E (in Fig. 17, which is a 
Fig. 17. — Plan of Mr. Edward Hayes's detached Windlass, belonging to 
Set No. 3G9G. 
plan of the windlass) drives one of three riggers, of which the centre one, F, is 
loose upon the axis, and C and D give motion to the rope-drums A and B 
respectively by means of pinions, intermediate spur-wheels, W and Y, and 
pinions, X and Z, gearing with internal cog-teeth npon the drum-flanges, liy 
a guide G G upon the sliding bar H H, shifted by the lever-handle J, the 
engine-man throws the driving-band E uj^n the dead rigger F, or npon the 
rigger C for actuating the drum A, or upon the rigger D for actuating 
the drum B. The bar H H has a tendency to return always to the out-ol- 
gcar position shown in the plan, this being effected by a coujile of strong 
spiral springs, one of which is represented at L. When shifted to right or 
left by the handle J, the bar H is held locked in that position by the catch K 
dropping into one of the notches shown ; and immediately ujjon this catch 
