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Патент USA US2136415

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` Nov. 15, 1938.
Filed May 19, 1937
Wa Her: Y Cornef?.
Patented Nov. 15, 1938
» l
Walter V. Cornett, Brooklyn,` N. Y.
Application‘Mayj‘li); 1937, Serial'No. 143,452`
7`Claims. (Cl. 256-13.1)
This‘finventi'on relates-ftey improvements in al
safety‘system:and~1device= for use> therewith and
hassforf- an'object- the provision‘of a system of
Vposts-zorf'supports >adapted tol be «placed along the
5r. sides of roads or highways to prevent'vehicles
such-„asiautomobiles fromv running off the -road .in
attached to the supporting ilange I5 by the bolt"Y
I6` at a point midway its ends, and that-saidas-rV
sembly isfree to flex above said bolt I6, as indi-»
cated in dotted lines at I9, Figure '1, >the side-ofl
flange I5'next to the springs ¿being relieved as 5r
casef of l'accident;
Another objectï is'toV provide‘such a system
shown at I5a to permit this. ' The `springs-extend
downward kthrough the aperture or aperturesïl4;.;v
as shown at 2l!k and -overlie the support Ilia'y In..
case >pressure is` appliedto the springstozrfleir;>
them; this pressure is transmitted -viathe.iportiorramr
20 of the springs to the support I0 and vialñangei
itytof resilient'supports orposts among which the> I5 to the plate II.
forcefoí the-¿Limpact'is distributed and by which
At a suitable distance abovevthe groundfthe
said; force is absorbed.
spring assembly is .drilled'for bolt 2|.- The -head
Anfurthenob-ject is >to» provide a new form of
15sr support ¿.or post particularly> suited for use with offthisbolt> fits `in a slotx22fin~the guard member. 15;;
the system herein described .and having the ad- or rail 23. A-leaf or-coiled:springf2`4'or'otherrre»
vantagesyhereinafter. pointed out.
silient meansisuch as a~ rubber'block, isginterposedrV
In the accompanying drawing:
between the guard 23 and the springs I1, I8.
Figure 1 is a vertical View, partly in section, of
The guard 23 extends horizontally from post to
20 one of the supports or posts forming the main post and is adapted when struck, to transmit the 20
subject matter of this application;
impact to a plurality of posts and to the spring
Figure 2 is a rear view of the post, Figure l, 4assemblies thereon which absorb the impact
with the web of the support I0 shown in section.; energy.
Figure 3 is a top View of the post, Figure 1; and
By providing the slot 22 in the guard rail, it is
wherein-theimpact of the vehicle is received on
lßiia-continuousgua-rd or `rail `supported on aplural
Figure 4 is a view, partly in section, of a preferred form of guard rail for use with the posts
shown in the preceding figures.
Referring to Figure 1, the numeral I0 denotes
an I beam of suitable dimensionsl forming a sup3o port. This may be driven into the ground to any
desired depth. The web of the beam is drilled
near the top to admit a bolt I3 to be presently
referred to.
'rne numeral Il denotes a plate having the
35 downwardly extending flanges I2, I2 adapted to
nt; snugly in the 1 beam. These flanges are
drilled and bolted to the web of the beam by bolt
I3. As the flanges iit the beam closely, the plate
is firmly secured to the beam. It may be so se40 cured before the beam is driven in the ground
and forms a convenient head for driving the
The plate has one or more apertures I4 there-
not necessary to very accurately space each post. 25
However, a steel cable can be used instead of the>
guard rail, said cable being secured to the bolts
2| in any Suitable manner.
By having the bolt IB above ground, the spring
assembly can be replaced in case of damage Wîth- 3o
out digging up the support IIJ. Also the plate II
Can be replaced in CaSe Of breakage by removing
the earth about the ñanges I2 and bolt I3 with
out digging up the support I0. The support can.
therefore, be safely set in concrete if desired'for 35
there is little danger of ever having to replace
it in Case of Severe breakage t0 any 0f the parts
ebOVe gI’OU-nd
In Operatîûl’l, a TOW 0f the POStS may be Set
alOng a highwayin the 1151121 mannen The Sup- 40
ports l0 may be buried in concrete and pockets
formed about the heads of them to permit at
taching the plates Il later. When the posts are
through. Adjacent these is the upstanding complete, the guard rail 23 will extend along the
45 ñange I5. Secured to this flange by bolts I6 are highway a Sufficient height from the ground to 45
the resilient members I1, I8, forming in effect engage the average auto Wheel 0r bumper.
leaf springs. Obviously any number of leaves
Assuming there is an accident and an automo
can be used on each assembly and one, two or bile strikes the rail 23, the force of the impact
more assemblies can be used on each plate. The will be distributed along the rail to several sets of
50 physical dimensions of these springs and their spring assemblies or posts. In each assembly the 50
number and arrangement will depend upon the spring 24 will be ñexed and absorb some of the
character of the safety system, that is to say, the impact. The remaining unabsorbed force is now
«maximum impact the system must withstand,
and this can be calculated in a known manner.
It will be observed that each spring assembly is
transmitted to the springs I1, I8, which are flexed
as shown at I9, Figure 1, which ñexing absorbs
some more of the shock. The remaining undlssi- 55
pated force is transmitted to the stationary part
of the post.
By providing the springs I1, I8, 24 and inter
posing them between the applied force of impact
and the stationary supports l0, H, the danger of
displacing the ñxed parts of the post assembly is
minimized, and by providing a continuous guard
member or rail 23 to distribute the impact over a
number of these posts, the destructive force is
'I'he resiliency of the system
causes the guard rail to spring suñiciently to
10 further dissipated.
throw the automobile back toward the road to a
greater degree than with systems using rigid posts
and cables.
What is claimed is:
1. A safety device comprising a support having
a portion extending below the level of the guard,
a leaf spring member secured thereto and extend
ing upwardly therefrom and having a portion
extending downwardly below its point of attach
ment to said support and below said ground level
and overlying the side of the support, and a hori
zontal guard member resiliently supported on said
spring member.
2. A safety device comprising a support, a
spring member secured thereto and extending up
wardly therefrom and having a portion extending
downwardly below its point of attachment to said
support and overlying the side of same, a horizon
tal guard member supported on said spring mem
ber, and resilient means between said guard and
its support.
3. A safety device comprising a support, an
apertured plate secured thereto, a spring member
secured to said plate and passing through said
aperture therein and having a portion extending
upwardly therefrom and a portion extending
therebelow adapted to laterally engage said sup
port, and a horizontal guard member extending
across said spring member and supported thereby.
4. A safety device comprising a support, a plate
secured thereto, a spring member secured to said
plate and extending upwardly therefrom, a hori
zontal rail extending across said spring member,
and resilient means interposed between said
member and rail whereby the latter is supported
on said member.
5. A safety device comprising a support, a plate
having a ñange extending therefrom, means for
securing said ñange to said support, a second
ñange extending from said plate, a spring mem
ber secured to said second flange, and a horizontal 15
guard member secured to said spring member.
6. In a safety system of the class described, a
plurality of supports, resilient members detach
ably secured to said supports comprising ñat
springs having portions overlying said supports 20
and being attached thereto at points midway
their ends, a guard member extending between
said supports and supported on said resilient
members, and resilient means between said guard
and said members.
7. In a safety system of the class described, a
plurality of supports adapted to be buried in the
ground, plates adapted to overlie said supports
and having integral flanges adapted to be secured
thereto at a point below the ground level, re
silient members extending upwardly from said
plates and removably secured thereto at points
above the ground level, and a guard member se
cured to said members and adapted when struck
to transmit shock to said members to be absorbed 35
by the resiliency thereof.
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