US957339A - Fluid-pressure motor. - Google Patents

Description

E. B. HOLT. FLUID PRESSURE MDTOR.

APPLIOATION FILED JUNE 14, 1909.

WITNESSES:

y S I S PATENT OFFICE..

HARRIS IB. HOLT, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR OF ONE-HALF T0 lCIEIRILIES A. CONN', 0F PITTSBURG, PENNSYLVANIA. f

FLUID-PRESSURE MOTOR.

ToaZZ whom it may concern:

Be it known that I, HARRIS B. lHoLT, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, a citizen of the United States, have invented o'r discovered certain new and useful Improvements in Fluid-Pressure Motors, of which improvements the following is a speciiication.

' The invention described herein relates to certain improvements in rotary fluid pressure motors, especially of the class or kind employed for operating boiler tube cleaners.

The invention is hereinafter .more fully described andclaimed. y

In the accompanying drawing forming a part of this specification,'Figure 1 is'a sectional elevation of my improved motor; Fig. 2 is a similar view on a plane at right angles to the planeA of section of Fig. 1; Figs. 3, 4 and 5 are transverse .sections on I' planes indicated respectivelyV byV the lines its -III-III, IV-IV, and 'lL-V Figs. 1 and 2,

and Fig. 6 is a detail view showing a modification of the spindle.

In the practice of my invention the casing 1 is formed with radial wings 2 having an annular bearing 3 formed integral therewith. The spaces or passages 4 between the wings forni outlets for the liuid. .'l`hese wings extend along the casing to a point 'adjacent to 'the wheel 5 which in the con struction shown in Fig. 1 is formed integral with the spindle G, and has suitably shaped blades on its peii1'iliei v. This wheel and its spindle are formed of a non-corrosive metal as brass or bronze. The spindle is threaded adjacent to wheel and internally threaded sleeves 7 and 8 are fitted onto the spindle, the sleeve 8 for the front end of the motor extending beyond the casing and having its projecting end constructed for attachment to a tool. A bushing 9 is placed in the annular bearing 3, and the forward end of the spindle is slipped into this bushing which it 'will be observed, is provided with a flange 10'bearing against the inner end of the. annular bearing. The sleeve 8 is .provided with a shoulder 11 which will bear, preferably through the medium of-a washer or y Specification of Letters Patent.

Application filed .Tune 14, 1909.

Patented May 10, 1910. Serial No. 502,068.

As the sleeves are screwed tightly against the sides ff the wheel the frictional engagement of the forward sleeve with the wheel willcause the latter to transmit a portion of the driving power to the tool.

A hollow annular shell 13 is inserted into the rear portion of the casing being held therein by screw threads. The inner wall of this shell forms a bearing 14 for the rear end of the spindle 6. A bushing 15 similar to the bushing 9 -is\.interposed between the bearing 14 and the spindle, the flange in the sleeve bearing against a shoulder a on the inner wall of the bearing 14. A washer or wearing ring 16 is interposed between the bushing and a shoulder on the sleeve 7. The' shell when screwed into position holds all the parts of the motor in place in the easing and also serves to conduct the fluid to the blades on the periphery of the Wheel, having at its outer end a threaded nozzle 17 for attachment to the supply pipe and with outlet ports 18 for directing the fluid against the blades.

A pocket or recess 19 is formed'in one of the radial wings 2 for the reception of lubricatingmaterial and said'pocket is provided with an outlet port 20 for conducting the lubricant tothe front portion of the spindle. lVhile the pocket may be closed by any suitable means, it is preferred to employ a ball 21 held to its seat by a spring 22, for that purpose. Sufficient space is provided at the rear end of the bearing 14 tov As shown in -Figs. 2 and 6, the wheel 5 may be formed independent of thespindle 6, and either keyed thereto as in Fig. 2 or screwed into the spindle as in Fig. 6. In both of these forms the entire spindle would be formed of steel. in Fi .-6 the sleeves may be omitted and the shoul ers designed to bear on the thrust As shown to the right bushings, maybe formed integral With the Spindle, but when the Wheel is formed independent of the spindle, one end of the latter is made smaller than the other to permit of-the Wheel being slipped into position, and in such a case a sleeve should be placed on the reduced end, said sleeve havingpan external diameter equal or approximately equal to that of the other end of thel As shown in Fig. 2, the axial passage may be connected by a tube 26 to a supply of lubricating material under pressure, said tube passing through the pipe supply, the fluid pressure for operating the motor as shown and described in an application Serial No. 480,547, filed March l, 1909, by F. M. Cannon.

It is characteristic of my improvements that the several parts thereof are placed in position through the rear end of the casing and .that by screwing in the shell 13 all parts are held in proper operative relation t0 each other. Each part is held in position ,by -the succeeding part and all nally locked by the shell.,

I claim herein as my invention:

l. .In a fluid pressure motor the combination of a casing having bearings adjacent to its ends, a- Wheel provided With spindles, sleeves engaging said spindles and forming the journals of the wheel, one of said sleeves being provided with means for attachment to a tool.

2. A Wheel for fluid pressure motors formed of non-corrosive metal in combina` tion with a spindle having the wheel keyed thereon and sleeves formed of hard metal secured to the spindle, one of said sleeves being provided with means for attachment to a tool.

In testimony whereof, I have hereunto set my hand.

HARRIS B. HOLT.

Witnesses: Y y

CHARLES BARNE'r'r, THnoDoRE DUFF.

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