Inlet-Grate Page: 4 of 4
[2], 2 p. : ill. ; 23 cm.View a full description of this patent.
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1,360,630
nating in the same horizontal plane. An
inlet grate 15 is arranged to fit in the frame
and rests on the lugs 13 and 14. The frame
is provided with transverse openings or
5 slots 16 separated by ribs 17, which latter
converge downwardly whereby the slots
flare downwardly and are thus non-clog-
ging. This makes a self cleaning grate as
is apparent.
10 The grate when resting on the lugs has its
upper surface a fraction of an inch below
the upper edge of the frame. It is pointed*
out that the grate will be supported on the
lugs and if it is found that the grate does
15 not rest firmly on any particular lug the top
of the other lugs may be chipped off until
an even bearing is had on all of the lugs.
In order to facilitate this the lugs 14 are
tapered upwardly as are also the lugs 13.
20 This gives the lugs sufficient strength and
reduces the bearing surface which would
have to be cut off. It is obvious that by this
simple arrangement a grate may be firmly
supported so that it will not rock and cannot
25 be displaced under traffic. Further the lugs
offer a very restricted surface for the lodg-
ment of trash and the like and therefore lit-
tle trouble will be experienced by trash get-
ting under the edges of the grate and cans-
30 ing the same to project above the frame and
thus be chipped off by traffic. It is further
pointed out that structures of this-character
are usually very roughly wasted and ordi-
narily there will be more or less flash on
S3 the edges of the grate. It is obvious
that if a continuous supporting ledge was
used for the grate that it would be neces-
sary to file off this flash and get a firm bear-
ing. With the present construction it is
40 only necessary to chip off the flash and
rough edges at the points where the lugs sup-
port the grate and this is very quickly and
expeditiously done. It will be seen that if
the grate is warped in casting it will be easy
45 to provide a uniform bearing by chipping
off the lugs at the necessary points.
The grate and frame constitute a unit and'
by omitting the base flange 11 from one side
it may be placed in proximity to a curb stone
50 and used as a drain into a catch basin as is
well known in this art. It is sometimes
necessary to provide a large grate or grat-
ing surface. With my invention the samesize unit may be used throughout and by
dressing off or omitting the base flange at 55
one end of each frame two frames may be
placed end to end and secured together as
by bolts 18. A supporting beam 19 may
be placed under the ends which are connect-
ed as is shown in Figs. 4 and 5 and the as- 6
sembled units adequately supported. It is
pointed out that the end flanges may be
omitted in the casting of the frame or it
would be possible. to remove the same after
the frame had been cast. It will be seen 65
that any number of units could be assem-
bled.
What I claim, is:
1. In an inlet grate, a frame, a group of
upstanding supporting lugs arranged with- 70
in and cast upon the inner face of the frame
and extending entirely around said inner
face, said upstanding supporting lugs being
spaced and terminating below the top of the
frame, said upstanding supporting lugs 75
tapering upwardly for providing reduced
upper ends, and a grate arranged within the
upper end of the frame and having flat
lower portions engaging with the upper ex-
tremities only of the tapered lugs, said 80
grate being arranged adjacent to the top of
the frame and subjected to the action of
traffic, said tapered lugs having their upper
reduced ends adapted to be readily cut down
whereby the grate may be evenly supported 85
by all of said lugs and confined within said
frame.
2. In an inlet grate, a pair of rectangular
frames, provided upon their outer sides and
corresponding ends with outwardly pro- 90
jecting flanges, the inner adjacent sides of
the frames being free from said flanges and
having transverse openings formed therein,
upstanding supporting lugs arranged within
and cast upon the inner faces of the frames 95
and terminating beneath the upper ends
thereof, the upper ends of said lugs being
adapted to be readily cut down, a grate ar-
ranged within the upper portion of each
frame and supported by said lugs, bolts 100
passing through the openings in the inner
sides of said frames, and a beam arranged
beneath the inner sides and supporting them.
I] testimony whereof I affix my signature.
GEORGE D. FAIRTRACE.0
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Fairtrace, George D. Inlet-Grate, patent, November 30, 1920; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1256698/m1/4/: accessed June 30, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.