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Патент USA US2403842

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July 9, 1946' Q -
- w. A. BATES ‘
2,403,842
ANCHOR FOR GRAT'INGS
Filed March 3, 1944
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IN VEN TOR.
Walk/“625m >
Patented 'July 9, i946
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' UNITED
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.2." ,.;If_:'2:403,842
PATENT
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‘wand A¥iB5tBSiJi0liéhLIlls us'si'glnor-ltov Beulah H.
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- " w The ’ present invention relates to T improvements
. In thefgratingi'lllust'atéddri thé‘dr'awiilgi'the
in
' Gratings
anchors sueh's;
for'jgr'atingshjj
usedin ?oors
_ _ ;‘ and
;y_ stairsteps
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shown in FiguresB and 4; are of general rectangltl-i'
numerals Ill'—}‘l0 indicate 'inainlbarsgwhicmras
larv cross'section. ' Said bars are disposedinfpar
in¢i1idustrial plants commonly have: their edge
portions supported by shelf-like‘, projections se-' 5 allelrelationship' withaejachbther ‘and their- 111)‘
per edges are recessed for the‘rejcepti'on o‘f?c‘rdss
.cured'to the“ structurev'of thebuilding. Various
bars ll. Said 'crossbars H are‘ secured tojth'e
, main bars |‘0-‘-_-lll‘preferab1y byimeans' of‘ welding,
,expedients have. been used; for fastening the grat;
:ings -to»su_ch supports, but all of those ‘with which
,appli ant :is familiar ‘have’ presented diiliculties
[from a practical standpoint. I "
the weldingldeposit- being indicated; bylthe' im
10 meral I2.‘ Theedg'e portions‘fof the'igrateare
commonly supported by‘shélfélike structures. 3 p
"-An 0 ject oithe presentinvention is’ to ‘provide ,
ananchor for gratings ‘which is'simple in‘ con
Figure 2 illustrates in cross section an angle
struction, easy to apply and e?ective ‘in service.’
, -A'; further object is? torprovide an. anchoflfor
bar, indicated by the numeral I13, 'suitableior, this
sessesjthe necessary strength to'perform ‘its func
upon the horizontallygextending' ?ange of an
angle bar l3. The present invention ‘provides
means zforvfasltening said main- bars, Ill-H ll tor-said
angle ‘bars [3 whereby said mainbarswillbg se
purpose. - Asshownin Figures 'liand ~2, the adja
gratings which is simple- and-cheap and’ yet pos 15 cent ends of the parallel main bars>-.l.0—.-I‘0 rest
tions;
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~A~further object-is to‘providev'a grating anchor
which‘may be readily mountedi-inplace from and
sition above the gratingywhich maybe readily-re
moved from operative‘ position when ‘desiredfb‘ut
is not at allv likely to-come\l6ose.-in.service.' ' i
20 :curely held'down. ~
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Ill-ill extending from-adjacent sides ‘thereof-“It
. '-A further object isto provide an improved grat
ing construction and anchor .therefor‘well' adapted
to Further
meet theobjects
needs will
of commercial
appear ‘asthe
service.
description
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proceeds.
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1 According to-the present;;invent_ion,-_ two (adja
centmain bars ; Ill-l0 “are, provided-with lugs
:15 at; present preferred to sir/edge these lugs from
25 the material of the main bars Ii)—_i_,0,__sai_d> lugs
lie-i4 - extending; therefrom. in. '- cantilever ‘re
lationshipj‘with their corresponding main; bars
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1 il— l 0; I ; Assuming a ‘grating having- ajsubstan
; Figure l-isa fragmentary‘top p1an‘view;show- - tiallyhorizontalupper surface, the upper surfaces
disposed atian-anglelof
ing part or a, grating having applied; thereto‘ an 30 of the lugs j-Hk-M will
Referring to the drawing:v
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about‘ 30 degrees from a» horizontal- plane. A Said
vlugs"lll—_;lll»serve as abutmenti'means foragrating
anchor embodying :the principles of'the present
invention';-'--
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anchors ‘embodying the" principles of; the present
Figure 2 is :a'sectional view ‘taken ‘along the
plane-indicated by-the arrows 2-2 of Figure ‘1'; 71
Figure 3'is an' end view. takenin the direction
invention.
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'35 gOne'of the advantages ojfjthe present ‘invention
is that the anchors maybe applied by, a workman
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located above the; grating which, is’ being secured
Figure 4 is a sectional view taken alongv the
in position. {Another advantage is that oneksize
plane indicated by the arrows ‘4-4 of Figure 21? "
-Figure 5 is a view similar to Figure ‘l but illus . of~anchor will operate e?iciently ‘for’ gratings hav- I
trating the applicability of an anchor embodying 40 ing di?erent spacings-between the main bars. _ A
standard spacing between-the main bars common
the ‘present invention of one size to a grating the
in commercial gratingsis about (me-inch.v -An
main bars of which are‘ spaced closer together
other standard spacing between the main bars of
thanare the main bars of the grating illustrated
of the arrows 3—3 of- Figure 1;
in Figure
?gure 6 is 7a . top
. 'plan
e View
~' of
.e awi'n’ain'ibarorf
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"a
commercial gratings is about'three-fourths ~ of an
‘45 ‘inch -or a little less;
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;-~Thef-anchor for »_cooperating'»with" the; lugs
grating showing‘ a modi?cation ‘of an 'anchpf'e'n
gaging lug struck out'fror'n saidmain bar ;-'
' HIT-VIII of the'main bars _i 9'-—l 0 is indicatedby the
i ‘
numeral |5.; Said-anchor l?iis "a channel meni
Figure '7 is a‘section'al'view" taken“ along the
ber1bent into-substantial >U -shape, having the two
plane jindic'atedbythe ar‘r'ows v‘IL-‘I ofFigure 6': I
Figure-8 is a top plan-‘view oi’ ‘am'ain' bar of'i‘a 50 legs 16 andll'L- The legs. i6 and l‘l’?may-he prq~
videdwith-slots ' l 8 and; l 9; respectively. Disposed
grating showing a further modi?cation o'f ‘an-but
within; the slots l8 and ‘I9 is the-bolt; -v20.hav_i*ng
struck lug \for'engaging an anchorgaccording to
thepresentinvention; and‘
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they. head :portion 21 provided with thelscre'w
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‘;Figure 9 is} a SGCtlOl'iaPVlGW taken alon'gethe 1
plane indicated by the arrows 9—-9 of Figure 8.
driver slpt '22, Disposed between‘thefhead'j'iéanrd
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65 the adjacent portion of the leg l6 of the anchor
2,403,842
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I5 is the washer 23 having a portion 24 adapted
to be turned up against a ?at portion of the head
2|. Said head ‘2| is illustrated as being of hex
agonal contour, this being a convenient shape for
providing a ?at side portion for cooperation with
the turned up portion 24. The lower extremity of
extend a short distance, say about a quarter of
man will then tighten up the bolt 20, using a
screw driver or the like for this purpose. The
workman will bend one or both of the tips 28-29
the bolt 29 is provided with the nut 25 which is
over one or both of the lugs I 4.
an inch, beyond the lugs I4--I4, the shoulders
30-30 being useful for this purpose. The work
Inasmuch as the
located within the channel of the leg I1. Said
material of the anchor is relatively soft, the
workman can easily bend one or both of the tips
channel receives said nut 25 with sufficient close
ness so that turning of said nut ‘in said channel 10 28 or 29 without danger of pushing the anchor
is prevented. The lower extremity of the bolt 20
away from the lugs. After the bolt 20 has been
tightened to the desired degree, the edge portion
may be upset (as indicated by the numeral 25)
24 of the washer will be turned up against a ?at
after said bolt and nut 25 have been a,ssemloled in
- face of the head 2| of said bolt 20, whereby to
the anchor I5.
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The outer extremity of the-leg- {IE is swedged
15 prevent accidental turning of said bolt.
to provide a middle portion 21 and two tips -2-_8_‘_.,;
During the swedging operation the mid- _
dle portion 21 will be raised ‘slightly above-the
and 29.
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L. The‘ anchor ‘I5, being channel-shaped in cross
section, will have requisite strength without sacri
‘?cingth'e factor ‘of ready bendability of the tips
adjacent bottom of the channel forming the leg
28, 29.
I6 to provide more or‘ less rounded shoulders 20
As indicated above, in gratings as commonly
sold in this country the minimum spacing be
tween main bars is about’ three-fourths of an
30_-—30 adapted to abut ‘against the lugs I4—,-I4.
‘ The material of the anchor‘ I5 is bendable, and
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inch or a little less. The maximum spacing may
eitherjor both of the tips 28 or 29, each having
be‘ in the neighborhood of one inch. ‘It is not
been severed from the mid portion 21 in the
swedging operation, may be bent down over one 25 necessary to stockvmore than one size of anchor
to cover these differences in spacing between the
or both of the lugs I 4'—I4 to hold the anchor 1
main bars. In other words, an anchor having
‘against movement toward the left as the parts
are viewed in Figures 1, 2 ‘and 5.
a maximum width of a little less than three
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fourths of an inch will serve for the limits of
Figures 6 and '7 illustrate a modi?cation in the
form of a lug for ‘cooperation with the anchor 30 spacing referred to. The angularity " of the
swedged in lugs I 4—I 4 or theswedg'ed in lugs
I5. As shown in said ?gures the lower portion
3I—3I or the swedged‘in lugs 32—32 will insure
of each of the two adjacent main bars Ill-I0
the symmetrical spacing of the anchors between
issevered along one plane, indicated by the sec
the main bars.
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tion line 'I-'I in Figure 6, the adjacent metal
By reason of the fact that one or both of the
being swedged to form an angularly projecting ;
lug 3| adapted to form an abutment functioning ~
tips 28 or 29 is turned down over a lug of a main
similarly to the correspondin'g'abutment I4 illus
bar, there is no danger that the anchor will drop
oif into the region below the grating. There
fore, even if the bolt'20 should become loose there
trated in Figures 1 to 5.
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Figures 8 and'9 illustrate another modi?cation,
in which the lower edges of the two adjacent 40 is no danger that the'anchor would be lost.
‘ Though a preferred‘emb‘odiment of the present
main bars II] have portions swedged toward each
invention has been‘ described in detailjmany
other in the form of bulges, as indicated by the
modi?cations will occur to'those skilled in the
numeral 32. vSaid bulges 32 operate as lugs sim
art. It is intended to cover all such modi?ca
ilarly tothe functions of the lugs I4—I4 illus
trated in Figures 1 to 5 and the lug 3I illustrated 45 tions that fall within the scope of the appended
in Figures 6 and '7.
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claims.
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In practice the dimensions of the horizontally
projecting portion of the angle member I3' will
vary. However, the anchor I5 will be su?iciently
bendable and ‘the length of the bolt'2€!_will be
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What is claimed isr
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1. A grating having parallel main bars and
cross bars secured together,‘ adjacent main‘ bars
50
having .lugs swedged therefrom at‘regions' ad
‘cou'nter'ed in practice. Furthermore, vby reason
jacent to the bottoms thereof and‘ spaced from
said cross bars,- said lugs being 'presented'tow'a'rd
each other and providing upper surfaces‘ sloping
of the slots I8 and I9 in‘ the‘ legs I6 a'nd'I‘I the
downwardly to the region between said bars‘. '
bolt 20 may be moved back and forth. ' Th'e'bolt 55
2. A grating having parallel main bars and
cross bars secured together, adjacent v‘main bars
such as to accommodate the variations in the
dimensions of the angle member‘ I3that are en'
20, washer 23’a'nd nut‘25 will be ‘mounted in as
sembled relationship with the legs I6 and I1
and the extremity of the bolt 2!] will be upset,
preferably at the factory. At this time the edge
portion of the washer 40 will be ?at and ‘both
tips 28 and 29 will extend in generally parallel
relationship with the'mid portion 21 of the
swedged end of the leg I6. '
having lugs swedged vtherefrom at regions ad
so
Jacent to the bottoms thereof and spaced from
sald cross bars, said lugs being presented‘ toward
each other and providing upper surfaces sloping
downwardly to the region between said bars, the
angle of slope of said surfaces to the horizontal
being approximately thirty degrees.
1
3. An anchor for securing a grating to a sup‘
In mounting the anchors, the workman'willbe
located above the top of the grating}? The bolt 65 port comprising a U-shaped member of channel
conformation providing two legs, one of said legs
20 will be loosened to a sufficient extent so that‘
having a bendable tip,‘ a bolt extending through
said legs, the head of said bolt having a non
leg under the projecting ?ange of the‘ anchor
round portion, a washer underlying ‘said head and
member I3, the other leg slipping over the lugs
I4. Said lugs will have been'swedged out at the 70 being non-turnable with reference to said an
factory at regions adjacent to the adjacent edge
chor, ‘said head and said washer being ‘disposed
the two legs of the anchor can slip'easily, one
of the grating. The‘ workman will hold up the
anchor with a short length of wire, a piece of
string, or the like, and will locate the anchor
within the channel conformation of one 'of said
legs, and a nut located in the channel conforma;
with respect to the, lugs ‘III-I4, so that the tips
t'u’rnablehwithl respect to said other leg, said
tion of the other of said legs, said nut being non
2,408, 842
6
the legs of said U-shaped member having a bend- '
washer having a portion adapted to be turned up.
port comprising a U-shaped member of channel
conformation providing two legs, one of said legs
having a bendable tip, a bolt extending through
said legs, the head of said bolt having a non
able tip at its extremity, a bolt extending through
the legs of said U-shaped member, a washer un
derlying the head of said bolt and being non
rotatable with respect to said anchor, said washer
having a portion adapted to be turned up against
the head of said bolt to prevent relative rotation
between said washer and said bolt, and a nut lo
chor,‘ said head and said washer being disposed
non-rotatable with respect to said U-shaped
Within the channel conformation of, one of said
legs, and a nut located in the channel con-forma
tion of the other of said legs, said nut being non
driver slot therein, the end of said bolt being upset
whereby to prevent it from becoming disengaged
against the ?at portion of said'head to prevent
relative rotation therebetween.
4. An anchor for securing a grating to a, sup
cated ‘in the channel conformation of one of the
round portion, a washer underlying said head and
being non-turnable with reference to said an 10 legs of said U-shaped member, said nut being
member, the head of said bolt having a screw
turnable with respect to said other leg, said 15
washer having a portion adapted to be turned up
against the ?at portion of said head to prevent
,
10. In combination, a grating having parallel
main bars secured together, adjacent bars having
lugs swedged therefrom presented toward each
relative rotation therebetween, the end of said
other, a support for said grating. located under
an edge portion thereof, and a U-shaped clamp
embracing said support and said lugs, said clamp
having a bendable tip adapted to be bent down
bolt being upset whereby to prevent it from be
coming disengaged from said nut.
from said nut.
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5. In combination, a grating having parallel
main bars secured together, adjacent bars having
' over one of said lugs.
lugs swedged therefrom presented toward each
11. In combination, a grating having parallel
other, a support for said grating located under
an edge portion thereof, and a U-shaped clamp 25 main bars secured together, adjacent bars having
lugs swedged therefrom presented toward each
embracing said support and said lugs.
other, a support for said grating located under
6. In combination, a grating having parallel
an edge portion thereof, and a U-shaped clamp ‘
main bars secured together, adjacent bars hav
embracing said support and said lugs, said clamp‘ _
ing lugs swedged therefrom presented toward
each other, a support for said grating located 30 having a bendable tip adapted to be bentdown '
over one of said lugs, said clamp adjacent to said
under an edge portion thereof, a U-shaped' clamp
tip being provided with a shouldered portion
embracing said support and said lugs, a bolt ex
tending through the legs of said U-shaped clamp,
adapted to abut against said lugs for locating said
and a nut on said bolt for holding said clamp in
clamp relative to said lugs.
.
35 ' 12. In combination, a grating having parallel
'7. In combination, a grating having parallel ' main bars secured together, adjacent bars having
lugs swedged therefrom presented toward each
mainbars secured together, adjacent bars having '
clamping position.
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lugs swedged therefrom presented toward ‘each
other, asupport for said grating located under
an edge portion thereof, a U-shaped clamp em
bracing said support and said lugs, a_bolt ex
other, a support for said grating located under
, an edge portion thereof, a U-shaped clamp em
40 bracing said support and said lugs, said clamp
tending through the legs of said U-shaped clamp,
having a bendable tip adapted to be bent down
vover One of said lugs, a bolt extending through
the legs of said U-shaped clamp, and a nut on said
a nut on said bolt for holding said clamp in
bolt for holding said clamp in clamping position,
clamping position, and a washer underlying the
head of said bolt, said washer being non-rotatably 45 said nut being non-rotatable with respect to said
clamp.
mounted with respect to said clamp and adapted
13. In combination, a grating having parallel
main bars secured together, adjacent bars having
lugs swedged therefrom presented toward each
8. In an anchor, in combination, a U-shaped 50 other, a support for said grating located under
to havea portion thereof turned up to prevent
relative rotation between said bolt and said
washer.
,
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clamping member of channel conformation, one of
the legs of said U-shaped member having a bend
able'tip at its extremity, a bolt extending through
the legs of said U-shaped member, a washer un
derlying the head of said bolt and being non 55
rotatable with respect to said anchor, said washer
having a portion adapted to be turned up against
the head. of said bolt to prevent relative rotation
betweensaid washer and said bolt, and a nut lo
an edge portion thereof, a U-shaped clamp em
bracing said support and said lugs, said clamp
having a bendable tip adapted to be bent down
over one of said lugs, a bolt extending through
the legs of said U-shaped clamp, a nut on said
bolt for holding said clamp in clamping position,
said nut being non-rotatable with respect to said
clamp, and a washer underlying the head of said ‘
bolt, said head having a ?at side portion, said
washer being non-rotatably mounted with respect
cated in the channel conformation of one of the 60
to. said clamp and adapted to have a portion
legs of said U-shaped member, said‘nut being
non-rotatable with respect to said U-shaped 7
thereof turned up against said ?at side portion
to prevent relative rotation between said bolt and
member, the head of said bolt having a screw
said washer.
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driver slot therein.
WALTER A. BATES.
9. In an anchor, in combination, a U-shaped 65
clamping member of channel conformation, one of
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