US 1322753 A
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Description (OCR text may contain errors)
R. S. BLAIR.
APPLICATION FILED NOV. 6. 19:5.
Patented Nov. 25, 1919.
ROBERT S. BLAIR, OFSOUTHORANGE, NEW JERSEY.
Specification of Letters Patent.
Patented Nov. 25, 1919.
Application filed November 6, 1915. Serial No. 59,913.
To all whom it may concern:
Be it known that I, ROBERT S. BLAIR, a citizen of the United States, and resident of South Orange, in the county of Essex and State of New Jersey, have invented certain new anduseful Improvements in Spraying Devices, of which the following is a specification.
This inventionrelates to spraying devices and more particularly to bath sprays.
One of the objects thereof is'toxprovide a simple and practical device of the above nature which shall be convenient and effi cient inuse.
Another'object is to provide in connection with apparatus of the above type means for automatically regulating the discharge under varying conditions of its supply.
Another object is to provide a bath spray of simple construction adapted automatically to maintain a substantially constant range of discharge as the water supply 1s increased or diminished.
Other objects will be in part obvious and in part pointed out hereinafter.
The invention accordingly consists in the features of construction, combinations of elements and arrangements of parts which will be exemplified inthe structure hereinafter described, and in scope of the application of which will be indicated in the-following claims.
In the accompanying drawing in which is shown one or more of the'various possible embodiments of the several features of this invention,
Figure 1. isa side elevation of a part" of a bath tub,certain parts being cut away in order to disclose the structure more clearly.
Fig. 2. is a sectional view taken alongthe line A-A of F ig. 1.
Fig. 3. is a similar view taken along the line B-B of Fig.- 1.
Fig. 4. is an enlarged sectional view'tak'en along the line CO of Fig. 1.
Fig. 5. is a sile view of a portion of. a bath tub, certain parts being cut away in order to disclose the structure more clearly, and showing a slightly differentform of spraying apparatus- Fig. 6. isa-sectional view-of anotherform of automatic regulating device. v
Similar reference-characters refer to simithe drawings.
Referring now to Fig. 1. of the drawing thereis shown at La bath tub provided with hot and cold water supply pipes 2 and 3 which are controlled respectively by. the faucets or valve spindles 4: and 5 their joint Cl1SCl1LTg6 passing through the nozzle 6. To this nozzle there is detachably secured, as
at 7 a resilient tubular member 8 which is preferably round in cross section at 9 and 10 and elliptical, as indicated in Fig. 2 of the drawings, atll'the greater axis of the ellipse being disposed horizontally. To the outer end of the member 8 there is secured a spray 12, a preferred embodiment of which is shown in detail in Fig. 4: ofthe drawing, although many of the advantages of this invention may be attained by a simple spray of the ordinary type at this point.
The spray 12, comprises rigid side walls 13 of tapering formto provide a rear wall 14;, which is greater inarea than the front wall 15. These two latter wallsare of thin resilient metal and the wall 15 is perforated asat 16 to permit the discharge to pass out and is normally outwardly convex. The Water is led through the side wall 18 as indicated'at 17 in Fig. 1. of the drawinggand with low pressure the discharge is outwardly dispersed, as indicatedby the lines 18 in' Fig. 4: The wall 14., however, is connected with the wall 15, as by the pin 19 and adjustable nut 20, and upon the pressure of the water becoming excessive the wall 1 1.
which isof-the greater area tends tobulge outwardly and rearwardly toward the dotted'line' 21, and to draw the wall 15 toward the dotted line2'2, thus flattening to a greater or less extent the wall 15and preventing the discharge from being dispersed over such a'wide angle. In this manner any increase of pressure with a tendency to throw the sprayed water throughout a longer path, automatically lessens the extreme angle between jets of the spray and tends to maintain uniform the area over which'they are-sprayed at theirpoint of im- I or curved portion of the tube 8 tends to straighten out nd, throw' the water higher,
tion indicated in dotted lines at 23. distance which the'water is thrown lengthwise of the tub is thus maintained substantially uniform as any increase in the strength or" the discharge of the spray, simultaneously raises the angle or the discharge and thus maintains the range lengthwise of the tub substantially constant. In Fig. 5 of the drawing there is shown a form of device in which an ordinary spray v 24' is connected by a resilient tube 25 with the spout 6, the tube 25:being elliptical in cross section at 26 and round at 27 and 28. This form of apparatus is normally set for its most eflicientangle of discharge, that is, maximum range, and as the pressure increases it is automatically tilted toward the position indicated by dotted lines at 29, the resilient tube straightening out. In this manner the spray is tilted downwardly as the pressure increases and discharge over 7 the end of the tub is prevented.
In Fig. 6 of the drawing there is shown a 25 different form of apparatus in which, how
ever, certain parts of the objects of this invention are achieved. In this figure the spout 6, connected as before described for the joint discharge from hot and cold water faucets, fits into a cup 30, flanged at 31, and having a rubber ring 32 to form a tight and 'yet readily separable joint between these members. The lower end of the cup or funnel terminates in a short tube 33 which fits within a rigid tube 34; curving as at 35 to the upwardly inclined spray 36 0f any ordinaryconstruction. This spray is directed upwardly to throw the jets 37 not only lengthwise of the tub but at a sharp upward' 40 angle and thus permit them to fall in the form of a shower.
Thetube 3a is intended to shape throughout the use of the apparatus but it may be, if desired, of malleable metal, so as to permit it to be adjusted or set to a difl'erent angle if desired.
Mounted within the cup 30 and having its lowermost coil interlocked with an annular recess 38v is a spiral spring 39, the upper end of which is secured aboutthe shank 40 of a .fiat button 41.
button 41 and surrounding portions of the cup 30,ar,e so. shaped as to cause the. button to be pressed downwardly toward the tube 33 as thepres'sure of discharge through the spout6 is increased, this depression being substantially proportional to the increase of discharge. In thismanner as the discharge is'increase'd or decreased from the 60 spout 6 the'button'al is moved downwardly or upwardly and thus varies the obstruction of the outlet of the water from cup30 to the tube 33. The discharge through the v spray is thus held substantially constant in ,65 .the' amountand pressure, and any tendency maintain its Spring 39 as well as the' to, vary this through adjustment of either of the faucets is automatically corrected by.
'a greateror less throttling tendency of the button 41. It is to be especially noted that the spring 39 should be so wound and proportionedthat its resistance to 'compresslon increases rapidly as the compression progresses in. 10rder to prevent an unduly great depression of the button as the'd1s-' charge through the spout 6 is increased. I I
It willthusibe seen that there is'provided' V apparatus in which the several objects of this invention are achieved.
' As various changes might be made in the above constructions and as this invention might beembodied'in otherforms it is intended that all matter herein described or shownin the. accompanying drawing shall be interpreted as illustrative-and not in a limitingsense. V
Having described this invention, I claim I 1. In spraying apparatus, in combination, means connected witha source of fluid supply, a spraying device and means adapted '90 automaticallyto tend to cut downthe range ofdischarge of said spraying device as the pressure. from said source of supply increases.
2. In spraying apparatus, in combination, means connected with a source of fluid supply, a-spraying device and-means adapted, automatically to tend to'vary' the range of discharge of said. spraying device inversely in accordance with the pressure from said source of supply. r
3. In spraying apparatus, in combination, a source of fluid supply, a spraying device and means comprising a resilient member connecting said source-of supply'with said 10 spraying device, said resilient member being subjected to the effect 'ofchanging pressure from said source of fluid supply and adapted to tend to cut down the range of discharge of said spraying device as said pressure in- "creases and maintain sald range substantlally constant.
. 4. In sprayingiapparatus, in combination, a source of fluld supply, a spraymg device,-
a curved resilient member and means'connecting said member between said deviceand said source of supply and tending to swing said spraying deviceangularly into a 'positionfor less range of discharge, as
said resilient member is distorted by increase of pressure from said source of sup ply! r r V U r 5.. In spraying apparatus, in combination,
a discharge spout, 'a spraymg device, and
a curved resilient tube connecting said spraying device with'said discharge spout and normally holding said device at an angle for greatest range ofdischarge, said tube being "positioned to'swing said device into a le s favorable angle for discharge as the '130 pressure from said spout is increased and to swing it back toward said most favorable angle as said pressure is lessened. I
6. In spraying apparatus, in combination, a discharge spout, a spraying device and a curved resilient tube connecting said spraying device with said discharge spout and normally holding said device at an angle for greatest range of discharge, said tube being positioned to swing said device into a less favorable angle for discharge as the pressure from said spout is increased and to swing it back toward said most favorable angle as said pressure islessened and said tube having a horizontally elongated cross section at its curved portion.
7. In spraying apparatus, in combination, means connected with a'source of fluid supply, a spraying device, means adapted automatically to tend to cut down the range of discharge of said spraying device as the pressure from said source of supply increases, and means adapted automatically to decrease the maximum angle of divergence between the jets discharged from said spraying device as pressure within said device increases.
8. In spraying apparatus, in combination, a source of fluid supply, a spraying device, a curved resilient member, means connecting said member between said device and said source of supply and tending to swing said spraying device angularly into a position for less range of discharge as said resilient member is distorted by increase of pressure from said source of supply, and means adapted automatically to decrease the maximum angle of divergence between the jets discharged from said spraying device as the pressure within said device increases.
9. In spraying apparatus, in combination, a source of supply of hot and cold water, a commondischarge member, means adapted to vary independently the supply of hot and cold water to said discharge member, means adapted to spray waterfrom said discharge member, and means adapted automatically to tend to cut down the range of discharge from said spraying means 'as the pressure from the source of supply is increased by said varying means.
10. In spraying apparatus, in combination, means connected with a source of fluid supply, a spraying device set substantially at its angle of maximum range, and means adapted automatically to tend to cut down the range of discharge of said spraying device as the pressure from said source of supply increases.
Signed at South Orange, in the county of Essex and State of New Jersey this 1st day of November A. D. 1915.
ROBERT S. BLAIR.