US479249A

US479249A - cuthbert

Info

Publication number: US479249A
Authority: US
Publication date: 1892-07-19
Anticipated expiration: 1909-07-19

Description

(No Model.) ,.2 Sheets-Sheet 1.. A. CUTHBERT.

NOZZLE HOLDER. Q 10.479.249l Patented July 19., 1892.

WIT/VESSES M (52%# (No Model.) 2 Sheets-Sheet 2.

A. CUTHBBRT.

NOZZLE HOLDER. No. 479,249. Patented July 19, 1892,.

A TTOHNEYS UNITED STATES PATENT OFFICE.

ARTHUR OUTHBERT, OF LONDON, JNGLAND.

NOZZLE-HOLDER.

SPECIFICATION forming part of Letters Patent No. 479,249, dated July 19, 1892.

Application iiled August 31, 1891. Serial No. 404.247. (No model.)

To a/ZZ whom it may concern:

Be it known that I, ARTHUR OUTHBEET, of Acton, London, NV., England, have invented a new and improved Nozzle-Holder, of which the following is a full, clear, and exact description.

My invention relates to improvements in nozzle-holders; and the object of my invention is to produce a device to automatically direct a jet of water so that every part of the arca within range of the jet will receive an equal amount of water. This equal distribution is effected by simultaneously delecting the end of the nozzle from which the jet proceeds and revolving the nozzle, it being held normally in a vertical position, the detlecting and revolving motions being rightly proportioned to each other throughout. In order to see how these two motions are to be proportioned, it is necessary to consider them mathematically. As the nozzle is deflected from the vertical through forty-tive degrees, the range of the jet changes from zero to maximum, the value of maximum depending upon the size of the supply-pipes, hose, and nozzle, and the pressure under which the water is furnished, and if the nozzle be simultaneously revolved around a vertical axis a sufiicient number of times during this detlecting it is plain that an area will be watered the radius of which is equal to the maximum range of thcjet. It the jet is deflected in proportion to the revolution-aa say, through one degree in each revolution-then the rate of time of each revolution must be varied in the inverse proportion to the area irrigated at each degree of deflection. Thus when the deflection is only one degree the area is very small and the revolution must be proportionately rapid; but if the revolutions remain constant as to time the rate of deflection must be varied inversely to the area watered at each angle. The latter is the principle which I have adopted and which I consider is the key to my invention, finding that it lends itself to the simplest niechanical means.

To this end my invention consists in a nozzle-holder, the construction of which will be hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar gures and letters of refertical to forty-five degrees.

ence indicate corresponding parts in all the views.

Figure 1 is abroken vertical section of the nozzle-holder taken on the line 1 1 in Fig. 2. Fig. 2 is a broken plan view of the same. Fig. 3 is a broken inverted sectional plan of the driving-wheel of the motor. Fig. 11's a diagram the ordinals of which represent degrecs of deflection from the vertical and the abscissa for curve oO a a', range ot jet, and 'for curve oO b a', either area or time. The curve 0o a a is the result of experiments which I have made and shows the relative range of a jet of water for all angles from the ver- The area watered while the jet is descending from any angle in vertical to forty-five` degrees is in direct proportion to a square of the range, for the range is the radius of the area. So if the abscissa of curve 0 a a is squared, considering the abscissa at forty-five degrees as one, the result will be the curve 0O o a. The abscissa of this curve will represent the total area watered at all angles in detlecting the nozzle from the vertical to forty-five degrees, and consequently, since thc time is in direct proportion to the area,the relative time that the deflector must take to reach any degree and shows the rate at which it should move at each degree; and Fig. 5 is a diagrammatic view showing, on an enlarged scale, the method of drawing the cam which operates the deiiector.

The machine is provided with an open frame 10, which is provided around its periphery with an upwardly-extending iiange 11 to protect the cogwheels and to strengthen the frame, and the frame has on the under side de pending lugs 12, to which are pivoted supporting-legs 13, so that when the frame is erected it is like the ordinary tripod. The frame has a central opening through it, which opening is surrounded by the iiange or wall 14, and a hose-coupling 15 is held in the opening, being secured to the under side of the flange 14, the said coupling havinga flange 16, which facilitates its attachment to the iiange 14, and through the iiange 16 is a drip-hole 17, which permits any escaping water to run oft. The supply pipe or hose 18 is secured to the under side of the coupling in the ordinary way, and a flexible hose 19 is secured to the upper IOO side, and this hose carries at its upper end a nozzle 20, having a screw end 21, which enables any kind of a nozzle, as the broken noz zle 22 in Fig. 2, to be screwed toit. The nozzle 20 is held loosely in the sleeve 23 of the defiector, which sleeve has depending legs 24 on opposite sides, and these legs are pivoted near the bottom to projecting supports on the horizontal cog-wheel 25, so that the deiiector will turn with the cogwheel. The cog-Wheel has a recessed hub 26,which [its against the upper wall of the flange 14, andthe wheel is held in place by a split ring 27, which enters the recess and rests upon the top of the flange 14, to which it is secured by screws or otherwise. One of the legs 24 of the deiiector is prolonged and extends downward beyond its pivot, and this elongated end is pivoted to a lever 28, which extends outward over the top of the cog-wheel 25, and its outer end portion is held to move freely in a keeper 29, which keeper is secured to the top surface ofthe cog-wheel 25. The cog-wheel 25 meshes with a pinion 31, which serves to turn the cog-wheel, and this pinion is cast integrally with a cog-wheel 30, which is mounted in the frame of the machine near one edge of the cog-wheel 25 and a little beneath the same, and the cog-wheel 30 meshes with a pinion 32 on the upper end of the motor-shaft 33, which shaftis arranged vertically, as shown in Fig. 1, and has its lower end resting on a screw 34 in the end of a bracket 35, which bracket is secured to the under side of the main frame, so as to support the motor-shaft. The shaft may be nicely adjusted by means of the screw and all wear may be taken up. The motor-wheel 36 is keyed to the shaft 33 so as to turn therewith,

but so that it may slide vertically thereon,

and this wheel 36 presses on the upper side against a collar 37 on the shaft and is supported by a spring 38, which is coiled around the shaft and rests upon a collar or nut 39. The wheel 36 has a peripheral groove 40, having a somewhat narrow entrance, and this groove is traversed tangentially by a series of partitions 41, thus forminga series of buckets which are adapted to receive water from a jet-pipe 42 and thus propel the wheel. This j et-pipe 42 issues from the coupling 15, so that when the Water is turned on through the supply-pipe 18 aportion of the current will be shunted through the pipe 42 and will drive the motor-wheel and consequently revolve the main cog-wheel 25 and the defiector connected therewith. The wheel 36 has a plate 43 on the under side, cast integrally with it, on the opposite ends of which are `parallel lugs 44 and between these lugs are pivoted the Shanks 45 of the governor-weights 46, which weights by their centrifugalforce balance the spring 38, and the shanks of the weights lare connected `with a collar on the shaft 33 by means of links 47. It will thus be seen that if the speed of the "motor gets too high the centrifugal force will cause the weights 46 to spread, and the wheel 36 will thusl be pulled down, so that only a portion of the Water from the jet will enter the groove in the wheel, and as the speed slackens the weights will fall toward the shaft and the wheel will be raised so as to receive the full force of the jet.

The following mechanism is employed for gradually detlecting the nozzle so that as it is `revolved the jet which issues from it will strike upon all portions of the surrounding ground: A worm-shaft 48 is mounted on the top of the wheel 25, and this worm shaft meshes with and turns a wheel 49, which wheel has a somewhat heart-shaped camiiange 50 produced thereon, and the flange engages a friction-roller 51, which roller is pivoted on the under side of the lever 28. The wheel 49 turns freely on its pivot, and as the cam revolves it will actuate the lever 28 and thus move the deector. It will be understood that the current of water liowing through the nozzle will have a tendency to raise the same into a vertical position, and consequently the water-pressure will hold the friction-roller 5l against the surface of the cam, so that the cam willhave the necessary eect on the lever and deflector; but in case the pressure should not be sufficient it is obvious that a spring-pressure may be substituted for the watery-pressure, so as to hold the roller against the cam. The worm-shaft 48, which drives the cam-wheel 49, has a starwheel 52 thereon, which projects downward through a slot 53 in the cog-wheel 25, and this star-wheel is adapted to engage projecting pins 54, which are secured to the outer surface of the flange 14 and are arranged in the path of the starwheel. It will thus be seen that as the star-wheel is carried around by the cog-wheel 25 it will engage these proj ections and will turn the cam-wheel and operate the detiector, and it is obvious `that a greater or less number of these projecting pins may be used, according as the cam-wheel is to be turned faster or slower.

The diagram in Fig. shows the manner of laying out the cam 50 so that the pressure of the friction-roller 5l thereon will give the necessary rate of deflection to the nozzle, and it will be understood that the cam may be adjusted so as to give any desired rate of deflection; but it is not necessary to mathematically carry out the gures in this specification.

The operation of the machine is asfollows: The water rushes up through the nozzle from the supply-pipe, and at the Sametime a portion of the current is diverted to the motorwheel, and the'movement of the wheel turns the main cog-wheel and the deflector in the manner described, so that the nozzle is pointedto all parts of a circle having a vertical axis, and the operation of the cam on the deflector causes it to be` gradually lowered and then raised, so that the water will be equally distributed upon allthe surrounding ground within the range of the jet.

IIO

Having thus fully described my invention, I claim as new and desire to secure by Letters Patcntl. A nozzle-holder comprising a revoluble support, a pivoted deiiector in which a nozzle is loosely held, carried by the said support, andsecured in the opening and provided with a side jet-pipe,- a revoluble deflector mounted above the hose-coupling and adapted to support a nozzle, a Water-motor mounted on the frame and having its Wheel in the path of the jet-pipe, a gear mechanism connecting the delector with the motor, and a cam-operated lever mechanism for chan ging the angle of the deliector, substantially as described.

'4. A nozzle-holder comprising a frame having a central opening therein, a hose-coupling secured in the opening, a deiiector mounted above the coupling and adapted to support a nozzle, a centrally-apertured Wheel mounted horizontally upon the frame, a lever held to slide on the Wheel and connected With the deiector, a cam mechanism for operating the lever, and a motor for revolving the Wheel, substantially as described.

5. The combination, with the frame having a central openingtherein to receive a pipe, the revolublewheel held to turn horizontally around the central openin g, the nozzle-holding defiector pivoted on the Wheel,'and the lever pivoted to the deliector and held to slide on the Wheel, of a cam-Wheel mounted on the main Wheel and adapted to engage a roller on the lever, a Worm-shaft for operating the camwheel, and a star-Wheel secured to the Wormshaft and adapted to engage fixed projections on the main frame, substantially as described.

6. The combination, with the motor-shaft and the motor-Wheel held to slide thereon, of a spring arranged to support the Wheel and weights adapted to balance the spring, said Weights 1oeing pivoted to the under side of the Wheel and having a link connection with the shaft, substantially as described.

7. In anozzle-holder, the combination, with the revoluble Wheel held to turn horizontally, as described,of a deiiector comprisinga sleeve having depending legs pivoted to the central portion of the Wheel, and a lever mechanism for changing the position'ofy the dellector in relation to the Wheel, substantially as described.

ARTHUR CUTHBERT.

Witnesses:

C. W. RUSSELL, H. SADD.