U.S. patent number 3,688,440 [Application Number 05/145,767] was granted by the patent office on 1972-09-05 for portable barricade.
This patent grant is currently assigned to Lift-All Company. Invention is credited to Donald D. Hyland, John C. Applegarth, Kevin Carroll.
United States Patent |
3,688,440 |
|
September 5, 1972 |
PORTABLE BARRICADE
Abstract
A portable barricade which is particularly adapted for
controlling crowds of people. The barricade consists of a length of
multiple-ply nylon webbing having hand holds or support loops
disposed at spaced intervals along the length and including between
the plies a steel cable which extends beyond the ends of the
webbing and has fastener loops which are adapted to be connected
together. The webbing and the cable therein are sufficiently
flexible to permit coiling of the barricade upon itself to form a
compact package which may be conveniently carried from place to
place.
Inventors: |
John C. Applegarth (Lancaster,
PA), Kevin Carroll (Lancaster, PA), Donald D. Hyland
(Lancaster, PA) |
Assignee: |
Lift-All Company (Inc.,
Manheim)
|
Family
ID: |
22514448 |
Appl.
No.: |
05/145,767 |
Filed: |
May 21, 1971 |
Current U.S.
Class: |
49/34; 256/1 |
Current CPC
Class: |
E01F
13/028 (20130101); E01F 13/022 (20130101) |
Current International
Class: |
E01F
13/00 (20060101); E01F 13/02 (20060101); E01f
013/00 () |
Field of
Search: |
;49/34,9 ;160/327,328
;211/119.18 ;24/73A,73HH ;256/1 ;94/1.5 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
1113229 |
|
Aug 1, 1961 |
|
DE |
|
609783 |
|
Nov 1, 1960 |
|
CA |
|
958406 |
|
Sep 1, 1949 |
|
FR |
|
1189520 |
|
Mar 1, 1959 |
|
FR |
|
Primary Examiner: Dennis L. Taylor
Attorney, Agent or Firm: Howson and Howson
Claims
We claim:
1. A portable barricade useful for restraining crowds comprising a
length of multiple-ply webbing having the plies thereof
interconnected along the margins to provide a central opening
therebetween, a metallic cable extending along the length of the
webbing within said opening, said barricade terminating at opposite
ends in fastener means, and hand holds disposed at spaced intervals
along the length of said webbing, the weight and thickness of said
webbing and cable being sufficiently low to permit manual support
thereof by said hand holds and being sufficiently flexible to
permit coiling of the barricade upon itself to provide a compact
package for storage and transportation, each of said hand holds
comprising a support loop of a fabric strip having the opposite
ends thereof attached to said webbing, said loops being spaced
apart at intervals which permit holding adjacent loops by an adult
with his arm comfortable extended at waist level.
2. A barricade according to claim 1 wherein said strip ends are
sewn to the webbing by stitching on opposite sides of the cable to
center the cable therein.
3. A barricade according to claim 1 wherein the hand holds at the
opposite ends of the barricade comprise support loops of fabric
strips having their opposite ends overlapped criss-cross fashion
and stitched to the webbing on both sides of the cable.
4. A barricade according to claim 1 wherein said multiple-ply
webbing comprises a nylon fabric made into an integral tubular
element as it is fabricated in indeterminate length, the ends of
said barricade having the nylon yarns welded together to provide a
ravel-proof terminus for the webbing.
5. A barricade according to claim 1 wherein said cable extends
beyond the ends of said webbing, and said fastener means comprise
fastener elements secured to the projecting ends of said cable.
6. A barricade according to claim 5 wherein each of said fastener
elements comprises a combination hook and eyelet having a hook
portion and a latch portion with complementary interengaging
tips.
7. A portable barricade useful for restraining crowds comprising a
length of multiple-ply webbing having the plies thereof
interconnected along the margins to provide a central opening
therebetween, said barricade terminating at opposite ends in
fastener means, and hand holds disposed at spaced intervals along
the length of said webbing, each of said hand holds comprising a
closed support loop of a fabric strip attached to said webbing,
said loops being spaced apart at intervals which permit holding
adjacent loops by an adult with his arms comfortably extended at
waist level, the weight and thickness of said webbing being
sufficiently low to permit manual support thereof by said hand
holds and being sufficiently flexible to permit coiling of the
barricade upon itself to provide a compact package for storage and
transportation.
8. A portable barricade according to claim 7 including a flexible
metallic tension member extending along the length of said webbing
within said opening.
Description
The present invention relates to portable barricades and has
particular application to a portable device for controlling crowds
of people.
Prior to the present invention, when it was anticipated that it
would be necessary to control crowds of spectators, highway
barricades were normally set up to demarcate the lines behind which
the crowds were expected to remain. While such barricades were
satisfactory to control orderly crowds, it is necessary to plan
sufficiently far ahead to erect the barricades and also to provide
for removal of the barricades when the crowd has dispersed.
Alternatively, single-strand rope fences are sometimes erected to
define the limits for crowds of spectators. Rope fences are not
entirely satisfactory as they are easily overlooked and spectators
may be injured by their failure to notice the presence of the
ropes. Furthermore, ropes must be supported by trees, posts or
other supports and the stringing of the ropes may cause abrasions
or burns. Furthermore, ropes are subject to being frayed or severed
by sharp objects or obstructions.
In either of the foregoing cases, it is necessary to have advance
notice of the need for barricade in order to erect the highway
barricade or to string the rope fence. Thus there is no convenient
portable barricade which may be used to control crowds which gather
spontaneously, as for example at the scene of a highway accident or
other disaster.
The present invention provides a novel barrier which may be stored
in a compact package and carried by public safety personnel, and
which may be extended at the site of a crowd and used to
effectively control the crowd temporarily, and may then be
compacted and stored away for repeated use.
The present invention provides an improved barrier which is readily
hand-held by safety personnel on the scene without propensity to
injure the safety personnel or the crowds sought to be
controlled.
More specifically, the present invention provides a portable
barricade which may be coiled for storage and which comprises a
length of nylon webbing formed of multiple plies in which a
metallic cable is disposed between selected plies, the cable having
manually-operated fastening devices at opposite ends which permit
the lengths to be connected end-to-end, and the webbing having hand
holds or support means disposed at conveniently spaced intervals
along its length.
All the objects of the invention are more fully set forth
hereinafter with reference to the accompanying drawings:
FIG. 1 is a fragmentary view of a portable barricade made in
accordance with the invention showing its use;
FIG. 2 is a fragmentary face view with portions broken away
illustrating certain structural features of the invention;
FIG. 3 is a plan view of the apparatus shown in FIG. 2; and
FIG. 4 is a sectional view taken on the lines 4--4 of FIG. 2.
Referring now to the drawings, FIG. 1 illustrates the use of a
plurality of portable barricades made in accordance with the
present invention. As shown in FIG. 1, a pair of flexible
barricades, each designated 10, are connected end-to-end, for
example by fasteners 11. The barricades 10 are fabricated in
determinate lengths, for example 25 foot lengths, and are provided
with suitable fasteners 11 at each end. At spaced locations, along
the length of the barricade, intermediate hand holds or support
loops 12 are provided, which permit the normal adult to
conveniently grasp and support the barricade at waist level when
his arms are comfortably extended, as shown in FIG. 1. A terminal
hand hold of different configuration is provided at each end as
indicated at 13. A suitable spacing between the hand holds 12, 12
and 13 has been found to be 5 feet.
The barricade is designed particularly to be hand-held by personnel
on the scene where it is desired to control the crowd. To this end,
the hand holds 12 and 13 are of a material which is comfortable to
hold and which does not cut into the flesh when it is held for a
prolonged period. A suitable material is a 1-inch tape with
multiple plies of nylon yarns woven into an integral structure. The
length of nylon tape is such as to provide a loop preferably about
20 inches in circumferential extent.
The body 14 of the barricade, as indicated in FIG. 4, is likewise
formed of multiple plies of nylon webbing. In the present instance,
the multiple plies are interwoven integrally into a unitary
structure having an opening between the two face plies thereof. As
shown in FIG. 4, the preferred material comprises a double
thickness of nylon webbing of approximately three inch width. The
face plies of the webbing 15 and 16 are interwoven along their
edges for a distance of at least one-half inch in width as
indicated at 17 to provide a pocket or opening 18 between the plies
15 and 16. The pocket 18 extends the full length of the body
portion 14 of the barrier so as to accommodate therewithin a
stranded steel cable 21. The cable 21, as shown in FIG. 2, extends
beyond the ends of the body portion 14 and has the fasteners 11
spliced thereon as indicated at 22.
The webbing 14 with the cable 21 therein is of sufficiently light
weight to enable persons to comfortably support the same at waist
level, as shown in FIG. 1 and is sufficiently flexible to permit
the barricade to be coiled upon itself into a compact package for
storage and transport. For example, a 25-foot length of the
portable barricade of 3 inches width when coiled will conveniently
store in a package which is less than 17 inches in diameter and
less than 4 inches deep. In this manner it may be carried about in
emergency vehicles for use whenever a situation arises which calls
for the control of crowds.
Nylon is the preferred material for the woven webbing inasmuch as
the webbing may be woven in indeterminate lengths and cut to the
desired length by a hot wire cutter which serves not only to
separate the nylon webbing at the desired positions but also serves
to weld the cut ends of the nylon yarns together to form a
ravel-proof terminus for the body portion webbing 14.
As shown in FIG. 2, the intermediate support loops 12 and the
terminal hand holds 13 are, in the illustrated embodiment of the
invention, sewn to the nylon webbing against one face on opposite
sides of the cable 21. The intermediate hand hold strips 12 are
attached in simple loops substantially perpendicular to the length
of the body portion by stitching in the present instance four
lines, two of which extend parallel to the length of the body
portion as indicated at 24 and two of which extend parallel to the
length of the strip making up the support 12, as indicated at 25.
The terminal ends of the hand-holding strip 12 are severed by a hot
wire to weld the nylon yarns together at that terminus to provide a
ravel-proof terminal for the strips, and these terminal edges are
positioned closely adjacent the center of the body portion. In this
fashion, the stitching adjacent the terminal edges of the strip 12
which pass through the body portion 14 serve to center the cable 21
within the body portion.
The terminal support loops 13, on the other hand, comprise strips
having the opposite ends overlapped and disposed in a criss-cross
array adjacent the severed end of the body portion. In this case,
one end of the strip 13 is first stitched to the body portion 14 on
opposite sides of the cable 21 as indicated at 26 and 27, and
thereafter the other end of the strip 13 is stitched to the body
portion 14 by stitching indicated at 29 and 30. The stitching 29
and 30 does not pass through the first end, but preferably is
confined to the end and the body portion 14, as shown. In this
fashion, the stitching serves to center the cable 21 within the
body portion 14, and the additional wear occasioned by the fact
that the support 13 is adjacent the terminal end of the body
portion, is compensated for by the double stitching provided.
The fasteners 11 at the opposite ends of the cable 21 are selected
so as to provide a secure linking-up of adjoining ends of the
portable barricades. To this end, the fastener comprises a hook
portion 33 having a base 34 spliced to the cable 21 and a latch 35
pivoted to the hook adjacent the base at 38 and having a contoured
tip 36 which is complementary to the tip end of the hook 37 so as
to interengage the resist separation. The pivotal connection at 38
includes a spring element (not shown) biasing the latch 35 into
engagement with the hook 33 at the tip ends 36 and 37 and the
arrangement is such that the interengagement between the hook and
the latch provides a smooth contour which is devoid of projecting
parts which may catch and tear clothing or flesh. Thus the fastener
11 is a combination hook and eyelet fastener which may be easily
connected to a similar combination hook and eyelet fastener, may be
hooked on to an existing cable or other strand, or may be hooked on
to a stationary structure so as to firmly anchor one end of the
portable barricade. Additionally, the structure of the fastener
provides a loop through which a rope may be threaded to provide a
short extension of the length of the barricade when desired.
In the illustrated embodiment, the webbing which makes up the body
portion 14 has been described as a two-ply integrally-woven
structure having an opening between the plies through which a
strand of cable 21 is threaded prior to attachment of the hand
holds 12 and 13. The integral weaving of the body portion 14
requires the support loops 12 and 13 to be secured externally to
the body portion. Alternatively, the body portion may be made of
multiple plies of webbing which are woven separately and sewn
together, or woven flat and folded along the center line and sewn
at one edge, to provide the multiple ply webbing with an opening
therein to accommodate the cable. With such webbing, it may be
appropriate to anchor the supports 12 and 13 to the body portion
internally, i.e. intermediate the plies of the webbing. It also may
be desired to incorporate the cable and the supports into the
webbing during the fabricating operation, for example where the
multiple-ply webbing made tubular by braiding or knitting.
While a particular embodiment of the invention has been illustrated
and certain modifications have been described, it is not intended
to limit the invention to such disclosure but changes and
modifications may be made therein and thereto within the scope of
the following claims.
* * * * *