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Патент USA US2025063

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Dec. 24, 1935.
A. J. LOEPSINGER
>
‘
2,025,063
SPRINKLER
‘
Filed April 14, 1951
2177.3
I
Adz/077269‘ V
Patented Dec. 24, .1935
' 2,025,063
"UNITED ‘STATES PATENT OFFICE, ' _
SPRINKLER ‘
Albert J. Loepsinger, Providence,’ R. 1., assignor to
General Fire Extinguisher Company, Provi
dence, R. I., a corporation of Delaware.
»
Application April 14, 1931, Serial No. 529,904 '
‘
4 Claims.
(01. 169-37)
‘
,- This invention relates to improvements in‘ cular area being doubly protected,'as it were,
sprinklers. More especially it has to do with a for there is of ‘necessity a large overlapping of
sprinkler capable of distributing its discharge these circular areas. As a consequence it several
over a substantially ‘rectangular area.
5
'- -
sprinklers are opened upon the occurrence of a
I
Sprinklers now in common use‘ distribute their ‘ ?re there is bound to be an unwarranted water» 5
discharge over a circular area. When installing
damage due to this overlapping alone.
a sprinkler system employing such sprinklers " the
latter must be so located with respectlto one an-v
The present invention enables the’ shape of area served by each sprinkler to be changed from .
other that their combined discharge covers all
0 the area, to be protected. This requirement,
coupled with the circular area serv d by each
sprinkler results in a large overlapp
of area
. which is not only unnecessary but is also undesir- '
able for it leads to excessive discharge and need->
15 less water damage.
It is anobglect of this invention to provide a
a sprinkler which will enable the aforesaid over-,
lapping to'be reduced to a necessary minimum
and which will permit a less quantity of water to
20 be discharged from each sprinkler albeit the in
tensity of precipitation is no less than is now
deemed suitable. Clearly it the proposed
sprinkler actually discharges a smaller quantity
the customary circular shape e to one which is
substantially rectangular. - In the particular ex- '10
ample disclosed for purposes of illustration this
area “is shown as an approximate square I.
The
diagonal of the latter is substantially equal to
the diameter of the circle previously. covered,
there being" a small but ample overlapping of the 15
edges of these square areas to avoid vany un-,
reached spaces. Since the area of each square
served by ahead is about seventy per cent of the
area of the corresponding circle, previously
covered, it is possible, with seventy per cent of 20
the quantity of water heretofore discharged from
each head, to sprinkle the ‘square area with the '
same intensity of precipitation as before. ‘In
other words, due to the almost complete-elimina
tion of overlapping areas and the great reduction 25
The best mode in which I have contemplated .' in area actually served by each head the entire
‘ of water it must follow that the water damage is
25
correspondingly reduced.
- v
‘
-.
applying the principles of this invention is illus
trated in the accompanying drawing but’ it is
area can be just as effectively sprinkled as here
tofore but with a saving of atleast thirty per cent
intended that the patentshall cover by suitable Y of ‘the quantity of water. ‘ Consequently, when
30 expression in the appended claims whatever vthe sprinklers under the improved arrangement
features of patentable novelty exist in the inven
of distribution open for discharge there is neces
' tion
In
Figure
disclosed.
the drawing,
1 represents the plan
7
view
' of vanarea
‘
,_ to
_ 35 be protected, with the unit area served by each
improved sprinkler indicated by the heavy dotted
sarily a'marked saving in water damage. '
' In Figures 2, 3, and 4 is illustrated a sprinkler
0 having a de?ector h capable of producing the
desired square area of coverage. In plan view 35
(Figure 2_)’ the configuration of this de?ector
‘lines, and with the corresponding area of the - is substantially that of a square, its sides being
40
present day sprinklers represented by a dot-and
at right an'glesto one another, with the tongues
dash circle;
h’ on each-side in a straight line. > .
'a
Figure 2 is a plan view of a sprinkler embody
ing the invention;
.
.
Figure 3 is an elevation of the same; and
, Viewed from the side (Figure 4) the vcenter 40
portion of the de?ector is seen‘ to be flat and to
merge into downward curving side portions com
Figure 4 is a partial elevation with the de?ector ' prising the tongues 71.’. These side or marginal
showninsectionas ‘onlinel-lofFigure 2.v
portions extend completely around the ?at plate
Referring more particularly to the drawing, vportion and each marginal ?ange lies in a sin 45
45
there is represented in Figure 1 a ?oor area of'a gle plane'which is‘symmetrically disposed in an
building having side walls a and band an end _' gular relation to the ?at plate portion. These
wall 0. Under the present practice of installing marginal ?anges impart direction to the dis
sprinkler systems heads would be located .at’the charge of the water received upon it, and since
60 various points marked it and the area of‘ distrlbu-' ~each such ?ange is in a single plane, the edge 50
1 tion served by each such head is represented by of the sprinkled area corresponding to the mar
the dot-dash circles e. It is to be noted that the ginal ?ange will be substantially a straight line
heads areso located that no space is left un-_ edge. At each corner there is a tongue with
reached by the sprinkler discharge. This re;
'65 sults in a very considerable portion of each cir
a portion on one side thereof and another por
tion on_' the other side thereof. 'By a‘suitable 55
‘ 9,025,008
proportioning oi the de?ector, comparable with
the decrease in quantity of water discharged,
the area served by each head will be approximate
ly as indicated by the heavy dotted lines I of
Figure 1, to wit, substantially square. It the
area to be covered by a sprinkler is oblong, then
the de?ector should be made rectangular with
its longer sides proportional to the longer axis of
the oblong area to be served and with the shorter
side of the de?ector proportional to the shorter _
metrically disposed in angular relation to the
plate portion and constructed and arranged to
impart direction to the discharge'irom said open
ing.
3. A sprinkler comprising a de?ector having a g
?at rectangular plate portion and abruptly curv
ing side portions at each edge 0! the rectangular
portion each‘ side portion being symmetrically
disposed in angular relation thereto and form
ing a circumscribing edge on said de?ector ar-jo
ranged and constructed to impart direction to the
discharge from said opening; said de?ector be
ing capable oi’ distributing the discharge from
said sprinkler over a substantially rectangular
sides of said area.
Iclaim:
1. A sprinkler comprising a body having adis
charge opening; an arm extending from said body,’
constructed and arranged to support ade?ector
area.
4. A sprinkler adapted to' e?ect pyramidal dis
?ector having a rectangular plate portion ex
tribution of its discharge comprising a discharge
tending at right angles to the axis of ?ow through . opening; a rectangular ?at plate arranged- at
said opening and having marginal portions ar
right angles to the axis of ?ow through said open- in alignment with said opening; and said dej-, '
ranged at an abrupt angle to said plate portion
ing‘ whereby part of the ?ow is de?ected at an Q‘
and forming acircumscribing edge on said de
acute angle to said axis and partis de?ected ap
?ector, each marginal portionlbeinglsymmetri - proximately perpendicularly- to said axis," and
cally disposed in angular relation to said de?ector side» portions at each edge oi’ said rectangular
and'construc'ted and arranged ‘to impart direc portion with each side portion symmetrically dis
tion to the discharge from said opening. ' .
,
'
2. A sprinkler having an opening for discharge
therethrough and a de?ector mounted opposite
said opening having'a rectangular ?at portion
arranged at right angles to the axis-oi ?ow
through said opening and having marginal por
tions circumscribing the edge or the rectangular
portion, with each marginal portion being sym
, posed in angular relation to the ?at plate por- ?y
tion and together forming a circumscribing edge
therearound constructed and arranged to de?ect
the last said part 01' the ?ow at an abrupt angle
to the original axis 0! ?ow; the combined eiiect
of said plate and side portions being a pyramidal “
distribution over a substantially rectangular area.
'
' All-BERT J. IDEPSINGER.
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