US2277811A

US2277811A - Hose nozzle construction

Info

Publication number: US2277811A
Application number: US292982A
Authority: US
Inventors: Frank M Ashley; Eugene P Fraser
Original assignee: Individual
Current assignee: Individual
Priority date: 1939-09-01
Filing date: 1939-09-01
Publication date: 1942-03-31
Anticipated expiration: 1959-03-31

Description

March 31, 942. F. M. ASHLEY EIAL HOSE NOZZLE CONSTRUCTION Filed Sept. 1, 1939 mvzzmons.

0 00044440 0 N 0 0 0 0w0w0n0 0 0 0 xfifi VIII/Ill IIIIIIIII Patented Mar. 31, 1942 UNETED STATES HOSE NOZZLE CONSTRUCTION r'rank M. Ashley,

Fraser, Brooklyn, to said Fraser Great Kills, and Eugene P. N. Y.; said Ashley assignor 4 Claims.

Our invention relates to hose nozzle constructions.

The object of our invention is to provide a construction suitable for use in extinguishing fire in buildings or marine vessels, or brush and forest fires, and which may also be used for spraying lawns and foliage, etc.

The principal object of our invention is to provide a construction comprising a body portion and a sleeve movable thereon adapted to control a narrow slot or slots formed in the body portion thru which liquid is forced in the form of a thin sheet or sheets which serve as a shield for the user and serve to assist in extinguishing a fire when directed thereon.

A further object is to provide a construction whereby the liquid forced thru the slot or slots may be directed at an angle to the normal direction of flow therethru and caused to be directed in an outwardly extending inverted coni- I cal form, the volume of which is controlled manually by operation of the sleeve which also serves as a valve by means of which the slots may be entirely closed.

A further object is to provide a body portion 2 having slots extending from the bore of the body portion in a lateral direction and arranged in concentric rows spaced a short distance apart longitudinally, the slots arranged in one concentric row extending beyond the ends of the slots in the adjacent rows and thus serving to form a complete circular shield of water when in operation, said sheet being thin enough for objects to be easily seen therethru.

A further object is to provide a construction in which interchangeable discharge snouts may be used for the purpose of reducing the volume of water discharged from the main bore, and also to change the form of the stream as it issues from the bore, as would be the case when the shout illustrated in Fig. 4 is used in fighting brush fires.

It will be understood that made in various sizes for use for stand-pipe service.

Referring to the drawing forming a part of the specification:

Fig. 1 is an illustrative view of the appearance of the device.

Fig. 2 is a longitudinal sectional view of the device in which the sleeve is shown as designed to serve as a valve to close the slots in the body portion.

the device may be with garden hose, or

Fig. 3 is a sectional view of a nozzle snout formed with a smaller diameter of outlet than that shown in Fig. 2.

Fig. 4 is a sectional view of a snout designed for use in extinguishing brush fires, and for use in small rooms of buildings or marine vessels.

I0 indicates'the shank portion of the device, H the body portion, l2 the sleeve, and I3 the snout shown carried by the body portion.

It will be obvious that the snout and body portion illustrated in Fig. 2 may be made integral if desired, but when so made the snouts would not be interchangeable for use with the body.

The butt end of the shank (not shown) may be formed as a coupling or other desired means for securing it to a hose in the usual manner. The passage or bore M of the shank I 0 is usually formed with converging inner walls, and said shank is coupled with the near end of the body portion at M by a threaded engagement as shown, but it may be coupled in any other practical manner designed to hold the parts together in separable relation.

As illustrated in the present case, the body portion is provided with a thread formed in its outer cylindrical surface, indicated by Hi, which serves to unite the shank and body portion, and also serves to guide the sleeve which engages therewith and is rotated thereon in the act of opening the slots [6 formed in the body portion.

In the drawing the slots are shown as formed in three concentric rows spaced a predetermined distance longitudinally from each other, each row having a plurality of narrow slots, the ends of which are spaced from each other -a predetermined distance.

The adjacent row of slots are so arranged that the slots extend circumferentially beyond the ends of the first row, the respective rows being indicated by ll, l8 and I9.

The outer surface of the body portion H is shown as formed with a conical end portion 20 in which the slots are located, and the sleeve I2 is formed to fit closely over said surface and close the slots when in one position as shown, and to open them when the sleeve is retracted, the degree of opening depending on the position of the sleeve.

When the sleeve is partly retracted, the liquid under pressure will flow thru the slots and combine in an annular space formed, and a sheet of liquid will be directed outwardly therefrom in a conical formation, the volume of liquid depending on the degree of opening.

When the sleeve is entirely retracted, the

liquid will flow laterally from each slot, the combined sheets forming a circular shield.

The bore thru the body portion may be tapered as illustrated, or may be a straight cylindrical form, but in either case the snout is made with a bore of smaller diameter so that a back pressure is created at the area in which the slots are formed to insure a proper discharge of liquid thru the slots Without materially reducing the liquid discharge from the snout.

The degree of taper of the conical end portion may be reduced or increased to any desired degree in making the device, or may be dispensed with in case where only the direct laterally flowing sheets of liquid are to be discharged, it being understood that the sleeve is also changed to closely cover the slot or slots to close the same.

The forward end of the body portion is provided with a thread at 2| to engage a similar thread 22 formed on the snouts.

The sleeve is formed to provide a cover portion I2 which serves to cover the threaded portion of the body at H when the sleeve is in the position shown in the drawing.

Referring now to Fig. 4 in which is illustrated a snout portion constructed to form streams of water suitable for use in extinguishing brush fires.

It is made by first casting in a mold to the outward and inner form substantially as illustrated, with a semicircular rib 23, after which the outer surface is turned smooth, and then a number of circular slots are formed which extend entirely around and thru the wall of the casting and are formed to discharge a liquid at relatively different angles, as will be readily understood by those skilled in the art of making hose nozzles.

The rib 23 serves to hold the circular rings 24 in their relative position after the slots are made in the casting.

The slots may all be of the same width or may Vary relative to each other within a limited degree but their combined outlet area should be less than the area of the bore in the body portion, and this holds true with respect to the slots formed in the body portion also.

It will be noted that a plug may be attached to the body portion in place of a snout when the device is made for the purpose of a lawn sprinkler and mounted on a stand which supports it in a vertical position in the usual manner of supporting such sprinkling devices.

It will also be understood that the body portion with the sleeve and snouts, may be made as independent articles of manufacture, and sold for use with a shank such as illustrated in the drawing; also that in small size nozzles the thread formed on the body portion and sleeve may be dispensed with if desired and the sleeve fitted to slide in close contact over the body portion to open or close the slots, as will be readily understood.

It will also be noted that the tapered main bore is smooth and unobstructed, thus insuring a free delivery and long throw of water from the snout when operated under high pressure.

Having thus described our invention we claim as new:

1. A hose nozzle construction comprising a body portion having an unobstructed passage therethru and having a plurality of series of narrow slits located between the inlet and outlet of said passage, said slits extending at substantially right angles to the median line of said passage and being arranged in circular lines circumferentially of said body portion, the ends of each slit of one row extending in front of the ends of slits of the adjacent row, to cause liquid forced thru said slits to form a complete circular protecting shield of very thin flat transparent sheets of liquid surrounding said nozzle at substantially right angles thereto and through which objects may be discerned, and a sleeve movable on said body portion to open and close said slits.

2. The construction defined in claim 1, together with the outer surface of said body portion flaring toward its forward end and said sleeve being shaped to conform thereto and being movable rearwardly to open said slits and forwardly to close the same.

3. A hose nozzle construction comprising a portion portion having an unobstructed passage therethru and having a series of narrow slits located between the inlet and outlet of said passage, said slits extending at substantially right angles to the median line of said passage and being arranged in circular lines circumferentially of said body portion, the end of a slit in one circular line extending in front of the end of a slit in an adjacent line, to cause liquid forced thru said slits to form a complete circular protecting shield of very thin fiat transparent sheets of liquid surrounding said nozzle at substantially right angles thereto and thru which objects may be discerned, and a sleeve movable on said body portion to open and close said slits.

4. The construction defined in claim 1, together with the outer surface of said body portion flaring toward its forward end and said sleeve being shaped to conform thereto, said sleeve being in threaded engagement with said body portion and being movable rearwardly to open said slots and forwardly to close the same and into an intermediate position to transform said shield into a conical form by passing between said flaring body and sleeve portions.

FRANK M. ASHLEY. EUGENE P. FRASER.