US291189A - Hydraulic motor - Google Patents

Description

(No Model.)

J. H. HlHoH.

a HYDRAULIC MOTOR: No. 291,18 9. Pgtentedan. 1, 1884.

FHL, F15.

HHHHHH UNITED STATES PATENT 'rr-tren,

JAMES HENRYHINOH, OF LACONIA, ASSIGNOR OF THREEFOURTH` TO VALTER HENRY PHIIJBRIOK, OF BELMONT, NEV HAMPSHIRE.

HYDRAULIC MOTOR.

SPECIFICATION Iforming part of Letters Patent No. 291,189, dated January 1, 1884i.

Application tiled September 1, 1853.

To all whom, it may conca/vz: u

Be it known that I, JAMES H. HrNcH, of Laconia, in the county of Belknap and State of New Hampshire, have invented an Improved Hydraulic Motor; and I do hereby declare that the following is a full and exact description thereof, reference being hadto the accompanying drawings, making part of this specitication.

My invention is especially intended for small motors for driving sewing-machines and other light work7 but may be applied to motors of larger size, if desired.

The invention consists of several special features of construction, Vwhich I shall specify in order, referring to the said drawings, inwhich- Figure l represents a top view of the hydraulic motor; Fig. 2, a central vertical section of the same; Fig. 3, a top view of the .lower section of the motor-case; Fig. 4, a bottom view of the motor-wheel, and Figs. 5, 6, and 7 views of parts in detail.

Like letters designate corresponding parts in all the figures.

First. In the constructionof the ease I have the. following special features: The case is cast in two parts, A and B, joined horizontally at the periphery, and nearly centrally between top and bottom. These parts have flangesa b at their joining edges,with packing c between, and secured together by bolts d d. Thus the case is made water-tight, so that itmay be used in a dwelling without leakage. The water is to be let into the case through the top part, A, which is provided with an aperture, or, preferably, two apertures, having enlargements j f around them, to give sufficient bearing for the pipes or nozzles C C, fitting into the apertures water-tight. The water after use is discharged through an aperture, g, in thebottom part, B, into which aperture a discharge-pipe, D, fits. The bottom part, B, has a suitable base, h, to sustain the case upon or attach it to a table or other suitable support. lheupper bearing, t', for the wheel-shaft is formed on a yoke, E, secured tothe top part, A,of the case. The lower bearing, j, is located inside of the case, and is formed on a bridge-tree, G,whieh has slots k 7c nearits ends,which are supported (No modul.)

on lugs m m, cast upon the inner surface ofthe bottom part, B, of the case. Screws a n are passed down through the slots in the bridgetree into these lugs, and by this means the bearing j is adjusted to an exactly central position, as required. The shaft H of the wheel passes through a central aperture in the top part, A, there being a suitable enlargement, o, around it, in which the aperture may be provided with a suitable packing around the shaft, if necessary.

Second. I mount the wheel-shaft H, which is properly made of steel hardened at the bearing ends, between two conical hardened bearings, ij, the ends of the shaft having conical cavities to receive the bearings, and I have these bearings made to screw up or down in the yoke and bridge-tree holders, so that not only can the bearings be adj usted to compensate for the wear, but the wheel can thereby be adj usted up and down to adapt it to the precise position in relation to the water-applying noz-l zles which will produce the best effect and obtain the largest percentage of power from the water. The wheel thus mounted runs with the least possible friction', thereby utilizing the power to the fullest extent.

rlhird'. I construct the water-wheel I in apeculiar manner. I first east the body of the wheel in a single piece with an enlarged rim, 1', for the double purpose of adding weight and consequent momentum to the wheel,thatit may run evenly and steadily, and furnishing sufficient width of peripheral bearing to apply the buckets s s thereto. The buckets are made of thin sheet metal swaged into the proper form, substantially as shown, and inserted into oblique cuts in the periphery of the wheel, as shown most clearly in Figs. G and 7. For small motors I cast the wheel in brass or similar alloy which will not eorrode in the water, and therefore will not clog up the wheel with rust, nor make the weight uneven on different sides.. This material is also more easily worked, particularly in cutting the yslots or kerfs for the buckets, than iron would be. The buckets s s may be made also of brass or other alloy having similar properties. The buckets are arranged at short intervals around the periphery of the wheel, the kerfs in which they are secured being at an angle of about forty-tive degrees to the horizon. The outer edges are curved backward, and their upper edges are iirst curved downward and then upward, while their lower edges are best curved iirst upward and then downward, thereby widening the buckets considerably beyond the depth of the periphery ofthe wheel. The water from the nozzles strikes these buckets at an angle approximating forty-tive degrees from the radial lines of the wheel, or about midway between the radial and tangential lnes,whieh direction is believed to be the most effectual for a turbine wheel of such a construction as above specified.

Fourth. The water is introduced into the case and let onto ihe wheel through a nozzle, C, of peculiar construction. lt fits tightly in the bearing f ot' an aperture in the top case, and reaches down nearly to the top of the wheel. so as to direct the water against the buckets of the wheel, as above specilied. The ajutage ofthe nozzle is contracted, as shown in Fig. 5, by which the stream of water is concentrated on the buckets inst at the points where it will have the best eil'eet. rlhe outer end, t, ofthe nozzle is formed with a suitable coupling for a water-pipe or hose-pipe. One nozzle will serve fordriving the wheel; but I prefer to employ two, on opposite sides of the wheel, as shown in the drawings, so that the two streams of wa- Near the lower end it curves laterally,

ier shall balance each other in their strain upon the wheel, and thereby obviate much friction and wear.

This motor is compact, strong, and efiieient, can be used almost anywhere. and readily changed from one place to another. It runs, as above indicated, with very little friction, and utilizes a high percentage of the waterpower. It is also simple and cheaply made.

I claim as my inyention l. A water-wheel case cast in two parts, A. B, with water-inlet apertures in the top part and water-discharge aperture in the bottom part, provided with an outside yoke, E, for the upper bearing ol' the wheel-shaft, and an inside bridge-tree, G, for the lower bearing ol the shaft, substantially as set forth.

2. The combination of the wheel-shalt Il'. having eonicalhollow journals atthe ends, and screw-bearings ij, with the yoke E and bridgetree G, substantially as set forth.

3. The combination of the water-wheel l, having the obliquely-set buckets s s secured around its periphery,with a nozzle, C, having a laterally-curved ajutage at itsinner end, substantially as and f'or the purpose herein specified.

In testimony whereoflhave signed my name in presence oi' two witnesses.

J AMES HENRY lllNCll'.

HLTER H. Pnirnnieli. FRANK. NV. Rnnyns.

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