Show y 1 IV ov 11 6 4 abe be abug water wheel r v t t IV 1 ov NE of the most important inventions in the machinery line of the pres 0 ent day is the hug water wheel which is manufactured and sold by the inventor and patentee mr D hug of S denver colorado I 1 the accompanying illustrations show a water wheel of tangential 11 impulse type made by mr hug which he describes as fl fallows lows which together with their gradual curvature throughout serves to greatly reduce the ordinary losses of efficiency due to friction and impact in wheels of 12 in in diameter and under the buckets are cast on the rim of the wheel but in larger sizes they are made detachable to allow re replacement p placement la cement when aben worn by sand or damaged by bv stones issuing from the nozzle the patented form of bucket fastening as shown is superior to the usual bolt fastening in strength li and security and in ease of attaching and detaching buckets the bucket buck et is provided with a tenon which fits a mortise in the rim of the wheel A steel key driven through a hole in the tenon ena engages acres the web of the wheel rim thus drawing the tenon to lo its proper seat in the mortice and causing the rear the bucket to bear firmly against the face of the rim the bucket isso is so adjusted to the wheel rim that the tenon will wiil be firmly seated in the mortise as soon as the rear support bears against against the rim this support relieves the tenon of all bending stress due to the force odthe of the steam the renewal of buckets when necessary can be made quickly and at small expense in all casses there are wetted surfaces in the buckets and the water thrown from these aig 2 fig 3 in pig fig 4 is shown a f ull full size view of a hul hug g bucket and in figs 1 2 and 3 an assembled piew lelet showing wheel buckets nozzle and le aae in their proper relative positions the direction of the water during its passage through bligh the buckets is completely reserved ild d it issues from the discharge ears in such manner that it cannot strike the back of e following bucket the peculiar form of he e bucket channels is such that they present a 11 exceedingly small area of wetted surface surfaces by centrifugal force will be carried 1 r round by the wheel when in a cloned case unless caught and deflected by some means the hur hug protector is ig a guard or frame which in connection with the ex tended extended end odthe of the case opposite the nozzle prevents water from being carried round by th the e wheel I 1 the smaller wheels or motors are en closed in cast iron cases and ready to be connected to the supply pipe the wheel and buckets of the 6 mn in and 12 in motors are cast in one piece and are of phosphor bronze the buckets are formed entirely in dry sand cores the casing is of cast iron neat in appearance pe arance and properly designed as to eire strength and space for discharged water all b bearings are lined with the b best est grade of babbitt metal and are made self aligning and ring oiling so as to require the least possible care or attention the nozzle is furnished with three interchangeable tips of different diameters to provide for a change in either the pressure of the water or the load under which the wheel is to run the smallest stream that will do the work should always be used if more power is required a larger larcker tip may be substituted in the 6 in and 12 in motors the tips may be changed by unscrewing the nozzle from the outside of the case in the larger sizes a suitable is provided in the side of the case through which the nozzle can be reached for larger t wheels a heavy framework frame work of timber if well built will answer for general purpose where the power developed is not great when a large amount of power is to be developed and for permanent plants in general it is best to have the wheels mounted on an iron framework seat in masonry and enclosed in an iron housing wheels provided with cast iron cases are shipped ready to be bolted to the foundation being fully adjusted before leaving the works it is claimed that the mechanical construction is of the highest order and at according cording to the best modern practice durability and efficiency are maintained for a lono long time except F fig i g 4 when gritty water is used in which case a new set of buckets may be required from time tiie to time in august 1898 a 12 in hug motor was tested under feet head by processo Prof esso R C carpenter at cornell university ithaca NY N Y this motor is designed to receive water from nozzles ranging in size from i in to i in in diameter the efficiencies attaining this test with the different nozzles are as follows 1 hn in nozzle per cent 7 16 in nozzle hin H 1 in nozzle i in nozzle percent per cent the efficiency of percent per cent for the i and 7 16 in nozzles is the highest ever reached under similar conditions the efficiencies of per cent and per cent obtained when using the 1 in and the i 3 14 in in nozzles respectively are exceptionally high for these nozzles deliver to the wheel quantities of water equal to only per cent and 25 per cent of the maximum capacity of the wheel the average efficiency from one half to maximum water supply one half load to f full 11 load is 86 1 per cent while the average efficiency from roni one quarter to maximum water auppl supply y 0 oab one fifth load to full load is per cent A very desirable feature is the range of speed that is possible without materially developing ve loping the power for example at full load a vari variation atio n in speed of 10 per cent from the normal will decrease the power powe r only 2 per cent |