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Патент USA US2283899

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May 26, 1942.
c. M. BAKER
2,283,899
PIPE CLAMP
Filed May 24, 1940
2_Sheets-Sheet l
25
29
23
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May 26, 1942;
Q MBAKER
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2,283,899
PIPE CLAMP '
Filed May 24, 1940
2 Sheets-Sheet 2
6f!
4f.5
115'
Patented May 26, 1942
2,283,899
uNirEo STATES. PATENT orrlcr.
PIPE CLAMP
Claude M. Baker, Winnetka, 111., assignor of one-.
half to. Jay V. Wescott and one-half to Florence
W. Wescott, both of Chicago, Ill.
Application May 24, 1940, Serial No. 337,024
6 Claims. (01. 248-56).
My invention relates particularly to a clamp
for holding a pipe, conduit, rod or the like, selec
tively disposed within an opening through a sup
porting means therefor.
The primary object of the present invention is
the provision of an improved resilient pipe hold?
ing clamp which may be ?exed for placement in
supporting relationship between a pipe and the
side wall of an opening through which the pipe
passes, and which is operable to remain thus
assembled because of reactive forces thereof
against said pipe and side wall, without the aid
of bolts, rivets, pins or other auxiliary fastening
means.
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clamp poised for insertion in seated relation be
tween the pipe and a diametrically opposite sec
tion of said side wall;
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Fig. 6- is a view similar to Fig. 5 showing both
clamps assembled in the clamping seated rela
tion between the pipe and supporting member
opening;
Fig. '7 is a transverse sectional view taken on
the line l'?'! of Fig. 6; and
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Fig. 8 is a transverse sectional view taken on
the line 8-8 of Fig. 6.
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My invention has particular utility as an ex
pediently applied clamping device for resiliently
yet ?rmly holding pipes in place upon the under
A further object of the present invention is the 15 carriage of railway cars. ' Prior clamping devices
provision of a novel unitary strap-like clamp de
for securing such pipes to their undercarriage
vice of the above? character which has a resili
ently ?exible bow member insertable between a
pipe and the side wall of an opening in which
the pipe is disposed and seats means upon the
ends of said bow member for engaging and im
holding means, such as apertured webs have con
sisted of a plurality of parts drawn into clamping
relation with the pipes by bolt and nut means,
and attached to said holding means by addi
tional bolt and nut? means, rivets, or the?like.
parting reactive holding force against the pipe.
While the present invention is admirably appli
A still further?object of this invention is the
cable to the environment of the aforesaid clamps
provision of a novel shock-absorbing? clamping
which it is adapted to supplant,'it will be under
and supporting structure for a pipe and compris 25 stood that the invention is equally applicable to
ing a plurality of clamp members which are eco
clamping means for any conduit, rod, or elon
nomically produced and easily installed without
gated member passing through an. opening
the use of special tools?.
With these objects in view my invention con
within a supporting means therefor, wherefore it
is intended that the term ?pipe? shall have this
sists in certain features of novelty in the con- '
generic connotation where used throughout this
speci?cation and in the appended claims.
Referring now to the drawings, ?and particularly
to Figs. 1, 2, 3 and 4, one of my improved clamps
struction, combination and arrangement of parts
by which the said objects and certain other ob
jects, hereinafter appearing, are e?ecte'd, all as
fully described with reference to the accompany
ing drawings and more particularly pointed out
in the appended claims.
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In the drawings-?
is there generally indicated by the reference
character ll]. Said clamp I0 is shown in asso
ciation with a pipe II which extends through an
opening l2 in a web, ?ange, or the like I 3 of a
supporting means 'forthe pipe. Clamps as M, in
?exible clamp constructed according to the in
the present embodiment of the invention, are
vention, the clamp being shown in its relaxed 40 adapted to? bev used in pairs as illustrated in Figs.
condition upon a pipe where it is poised prepar
6, '7 and 8 where the clamp 10 and a similar
atory to being slid endwise for disposal in a look
clamp ID? are shown in assembled cooperative
ing position between the pipe and the side wall
clamping relation with the pipe ll?. Since, how
Fig. 1 is aside elevational view of a resilient
of an opening within a pipe supporting member;
Fig. 2 is a View similar to Fig. 1 but illustrating
ever, both of the clamps l0 and iii? are identical,
a detailed description is herein given of only the
the clamp, partially ?exed, in the aforesaid look
clamp VH] ?and the corresponding parts of the
clamp l0? are indicated by the same respective
?reference characters with a prime added.
Fig. 3 is 'a transverse s'ectionalview taken on
The clamp 10 may be pressed into shape from
the line 3--3 of Fig. 2; "
Fig. 4 is a perspective view of the clamp shown 50 a sheet metal stamping of suitable thickness.
Thus said clamp consists of a generally strap
in the lower numbered ?gures;
like body comprising as its center portion a bow
Fig. 5 is a side elevational View, partly in sec
tion, illustrating one clamp in seated relation be
member M which is bent inwardly between its
ing position;
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tween a pipe and the side wall of an opening in
a supporting means for the pipe, and a second
ends for eifecting a saddle or support engaging
section I5.
The saddle l5 includes a pair of
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2,288,899
wings I6 and I1 extending oppositely from and
transversely of the member I4, said wings I6 and
I1 being curved inwardly in an amount to cause
their outer periphery to correspond substantially
to a peripheral are upon the side wall of an open
ing as I2 into which the saddle I5 is to be in
serted.
Seating means for the pipe II are provided at
opposite ends of the bow member I4, such seat
ing or driving it to the right into the position
shown in Fig. 2 incident to ?exing the resilient
bow member I4 inwardly. In the present instal
lation where a pair of clamps ID are to be em
ployed the opening as I2 will be suf?ciently large
in diameter that the bow member I4 ?rst in
serted does not ?ex su?iciently far to cause
placement of the axial elements as 20 and 2I
in the seat sections I8 and I9 ?atly upon the pipe
ing means respectively comprising concavo-con 10 II. Neither will the resilient ?ngers as 24 and
25 upon these seat sections be forced completely
vex pipe seat sections I8 and I9. The concave
downwardly over the pipe II wherefore crescent
spaces as that indicated at S in Fig. 3 will exist
between said seat sections and the pipe. It will
curvature of the pipe as I I upon which they are
be understood, however, that more than two
to be seated when a pair of the devices is in
clamps may be placed about the pipe in an in
stalled. Hence the axial elements upon the inner
stallation or that but a single clamp may be
periphery of the seat section I8 are substantially
used and in the latter instance the angularity of
parallel as are the axial elements upon the inner
the seat sections with the bow member, longi
periphery of the seat section I9. The bow mem
ber I4 is both ?exible and resilient and is shown . tudinally thereof, will be so chosen that the
axial elements as 20 and 2I will lie ?atly along
in Fig. 1 in its relaxed condition where it will be
the pipe surface when the bow saddle registers
seen that said axial elements as 29 and 2| upon
with the side wall of the opening I2.
the seat sections I8 and I9 converge outwardly
Following insertion of the ?rst clamp II) in the
of the device and generally toward the center of
manner described, the second clamp I 0' will have
said bow member I4. But when the saddle of the
the seat section I9? at its leading end inserted
bow member is pressed inwardly, said member
between the pipe I I and the opening I2 at the
will be distorted for causing the axial elements
diametrically opposite side of such opening with
as 29 and 2| to assume mutually aligned posi-'
respect to that at which the saddle I5 of the
tions to enable them to lie ?atly along the pipe
30 clamp I0 is disposed; see Fig. 5. Thereupon the
I I as shown in Fig. 6.
clamp ID? will be forced home by shifting it to
A pair of pipe gripping ?ngers 22 and 23 pro
the left along the pipe II until the saddle I5?
iect oppositely from the seat section I8 and
registers with and receives the wall section of
transversely with respect to the bow member I4.
the opening I2 at said diametrically opposite
These ?ngers 22 and 23, as well as corresponding
?ngers 24 and 25 which project oppositely from 35 side. Normally, the second of the clamps, III?,
the seat section I9, are curved to effect with their _ will be inserted through the opening I2 from the
side opposite to that at which the trailing end
respective seat sections a con?guration simulat
of the ?rst inserted clamp is positioned so that
ing that at the shorter radius end of an ellipse
should any misalignment develop between the
as is clearly illustrated in Fig. 3 where the con
?guration of the seat section I9 and a circular 40 clamps I0 and III? while the second clamp is
being axially moved to the assembled position,
section of the pipe I I are visible for comparison.
the deflecting sections as 21' or 30' will simply
These pipe gripping ?ngers as 24 and 25 as well
slide along the de?ecting sections as 29 and 28
as the seat sections as I9 are resiliently ?exible
of the clamp I0 without blocking advancement
so that when said seat sections are pressed radi
faces of the seat sections I8 and I9 describe a
simple curve corresponding substantially to the
ally inwardly of the pipe, the ends of their as- ,
of said member I9?. Ordinarily driving impacts
will be applied to the drive lip 26' for forcing
said clamp to the left into the position shown in
Fig. 6 with the bow member I 4' thereof ?exed.
gagement with the pipe, they, together with their
Incident to such ?exing of the bow member I4?,
associated ?ngers as 24 and 25, will ?atly en
gage the pipe while the resiliency of the ?ngers 50 the force imparted thereby through the seat sec
tions I8? and I9? upon the pipe II will slightly
will cause them to grippingly engage the pipe.
de?ect such pipe toward the seat sections I8
One end of the clamps as I0 constitutes the
and I9 upon the opposed clamp II! so that when
leading end thereof since it is the end which is
the clamps II] and ID? are both in their home
normally advanced foremost along the pipe and
positions, the bow members I4 and I4? will both
through the opening as I2. The opposite end of
be ?exed inwardly su?iciently far to cause the
the clamp is the trailing end and may have there
sociated ?ngers as 24 and 25 will be forced apart.
vWhen the seating sections are pressed into en
in an upwardly de?ected driving lip 26 which may
be struck by a suitable driving implement for
forcing the clamp into the opening. The lead
ing edges of the ?ngers as 24 and 25 near their
ends have backwardly directed de?ecting edge
sections 21 and 28, whereas the leading edges
of the ?ngers 22 and 23 have similar de?ecting
edge sections 29 and 30.
It is the function of
these de?ecting sections to prevent the second
inserted of the clamps from lodging against the
?rst inserted clamp in the event of said clamps
becoming misaligned circumferentially of the
pipe. This will be explained more fully presently.
The ?rst step in the assembly of a pair of my
improved clamps with a pipe as II and a sup
porting means as I3 therefor is to insert the
leading end of one of the clamps through the
oversize opening or hole I2 as illustrated in Fig.
1. Thereafter the clamp is forced home by press
axial elements as 20 and 2I upon the seat sec
tions as I8 and I9 to lie ?atly upon the pipe.
Furthermore, the seat sections while in this
seated relation will have advanced the pipe grip
ping ?ngers as 24 and 25 su?iciently onto the
pipe while expanding them to cause them to
?atly or uniformly engage the pipe as illustrated
in Figs?? and 8.
It will be seen, therefore, that when the clamps
are fully installed, the seat sections, including
their pipe gripping ?ingers as 24 and 25, will
engage the pipe over a substantial area to sta
bilize the bow members as I4 against lateral de
?ection circumferentially of the opening I2 and
to augment the frictional resistance to relative
movement between these seat sections and the
'pipe. Moreover, the curved wing extensions I6
and I?! of the saddles I5 and I5? conform to the
circular side wall of the opening I2 to increase
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2,283,899
the bearing area between such saddles and the
supporting means I3, thus reducing the pres
oppositely from each of said seating sections and
laterally with respect to said bow member, and
backwardly inclined de?ecting edge sections upon
and adjacently to the extending ends of at least
sure per unit of area within the saddles and the
rapidity with which .wear would occur ?between
these surfaces should relative vibratory move 5 part of said ?ngers.
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ment be incurred between such saddles and the
3. A clamp of the class described comprising
supporting means l3 during service. of the as
a resiliently ?exible bow member, pipe seating
sembly.
means at the ends of said bow member and fac
My improved clamping means, since it is made
from a sheet metal stamping capable of being
pressed into the desired shape by conventional
ing inwardly thereof, and a support engaging
portion on said bow member intermediate said
seating means and facing outwardly of said bow
die means, has a; great advantage from the.
standpoint of economical production. The de
member.
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4. A clamp of the class described comprising
vice is also more easily installed than the prior
a resiliently ?exible bow member, concave pipe
devices which have required the placement and 15 seating means at the ends of said bow member
manipulation of threaded members as nuts and
and facing inwardly and extending laterally
bolts and/or rivets. The ?assembled installation
thereof, and a concave support engaging portion
is self-locking to prevent it from becoming
. on and laterally traversing said bow member in
loosened while in use. It also incurs the further
termediate said seating means, and the concav
advantage of providing a noiseless yieldable 20 ity of said support engaging portion facing out
cushion support for holding the pipe in the de
wardly of the bow member.
sired position.
5. A clamp of the class described comprising It will be obvious to those skilled in the art
a resiliently ?exible bow member, concave pipe
that many changes may be made in the single
seating means at the ends of said bow member
embodiment herein disclosed without departing 25 and facing inwardly and extending laterally
from the spirit of the invention, wherefor I
claim as new and desire to secure by Letters Pat
' thereof, a concave support engaging portion on
and laterally traversing said bow member inter
mediate said seating means, the concavity of said
ent, the following:
1. In a clamp of the class described, a gen
support engaging portion facing outwardly of
erally strap-like body comprising a resiliently 30 the bow member, and pipe engaging ?ngers ex
?exible bow member, plate-like concavo-convex
pipe seat sections respectively at the ends of said
bow member, the concave sides of said bow mem
ber and of said seat sections being upon the in
ner side of said clamp, an out-turned driving lip 35
tending oppositely from each of said seating
means and laterally with respect to said bow
member.
6. A clamp for securing a pipe or the like ex-?
tending through a relatively large opening
upon the end of one of said seat sections, and
inwardly curved pipe engaging ?ngers extend
ing oppositely from each of said seating sections
and laterally with respect to said bow member.
through a support comprising a plurality of
resiliently ?exible bow members having their con
cave sides facing the pipe and arranged axially
thereof and spaced angularly thereabout and ex
2. A clamp of the class described consisting 40 tending through said opening in tensioned en
of a strap-like body comprising a resiliently
gagement with the pipe and opening, each of
?exible bow member having leading and trailing
said bow members being provided.l with pipe
ends, plate-like concave-convex pipe seat sec
seating means at the ends and facing inwardly
tions respectively at the ends of said bow mem
thereof and with a support engaging portion
ber, the concave sides of said how member and 45 intermediate said seating means and facing
of said seat sections being upon the inner side '
of said clamp, pipe engaging ?ngers extending
outwardly of the bow member. .
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CLAUDE M. BAKER.
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