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Патент USA US3043230

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July 10, 1962
J. F. PERRlGo ETAL
3,043,220
SAFETY FusEE CAP
Filed sept. 25, 1958
.1
ATTORNEY l“
. A,United States Patent
ice
amazes
Patented July 10, 1962
l
2
3,043,220
ing while it burns. 7 is a generally circular button-like
projection of special igniting compound provided in the
SAFETY FUSEE CAP
llohn F. Perrigo, Beloit, Wisa, and Russell G. Rutherford, -
usual way on the upper end of the fusee, constituting the
igniting head for the fusee, this being so related to the
ignition material 8 usually provided on top of the cap so
Rockford, Ill., assignors to Lakeside Railway Fusee
Co., South Beloit, Wis., a copartnership
~
that scratching of this material sharply but lightly against>
Filed Sept. 23, 1958, Ser. No. 762,835.
the head 7 is enoughto light the body ofthe Vfusee, the
usual compound 9 in the body of the fusee being sure
This invention relates to a new and improved safety
burning once ignited although it- burns fairly slowly, a
fusee cap construction.
.
10 `fusee of the standard length usually burning about ten min
'
8 Claims.
(Cl. 1ML-37.8)
. Fusee caps, as heretofore constructed, consisting of a
utes. Y The cardboard covering 10 is burned up at the same
hollowedout wooden plug held in place in one end of a
cardboardv tube by means of Va wire staple, which also
fastened the cloth tape to the cap, were rather expensive,
rate as the rest of the body of the fusee.
'
Y
`
The cap indicated generally by the reference numeral
11 comprises, in accordance with our invention, a card
considering the small amount of service performed there 15 board sleeve 12 to form the shank for the cap having a
by, and the fact also that they did not aiford a truly de
close telescoping tit on the upper end of the cylindrical
pendable protection for the igniting headrof the fusee. It
body of the fusee, a formed sheet metal top closure 13
is, therefore, the principal `object of our invention to im
closing the upper end of the sleeve 12 and being coated
prove the construction of such a cap so as to provide truly
on the outside with the ignition material 8 previously
dependable protection for theV igniting head, and at the 20 mentioned and carrying on its inside a cork disk 14 for
' same time make the caps available at no higher cost than
protection of the projecting head 7 in the event of any
the old cap construction, if as high.
contact with it, and also having a cloth tape 15 suitably
In the improved cap of our invention, a sheet metal top
secured to the cap 11 between the metal top closure 13
closure is employed comparable to a bottle cap, having a
and the cardboard sleeve 12, so that this pull tape can be
cork disk inserted therein which serves for protection of 25 extended across the top of the cap 11 as a protective
the igniting head of the fusee, the flange of the top clo
covering for the ignition material 8, as has been custom
sure being however formed to a reduced diameter so as
ary with safety fusees in the past. VA paper covering 16
to grip the marginal edge portion of the disk in the
is applied with glue over the upper end of the body of
folded-in rim portion of the closure, and the flange being
the fusee and cap 11 to fasten and conceal the cap com
Y 4inserted in one end of the cardboard sleeve with one end 30
portion of the cloth tape and the flange swedged outwardly
while the projecting rim portion is swedged downwardly
pletely except for the protruding pull-tab defined by the
small 'end portion of the tape 15, as seen in FIG. 1. Thus,
the fusee is fully protected for shipment and storage and
handling up to the time it is to be used, when the tape 15
is pulled upwardly, tearing the paper covering 16 length
and inwardly to fasten the closure to the cardboard sleeve
and at the same time grip the end portion of the tape'se
curely its full width between the two parts. 'In that way,
' wise, as indicated at 17, and crosswise of its upper end,
as indicated at 18, so that it is a simple matter to free the
cap 11 by a twist to tear the paper along the line 19, so
since the cork gives sufficient protection for the igniting
head on the fusee, there is no. necessity, as there was with
the old construction, of `stuihng crumpled paper into the
that the cap can be removed and the fusee is then ready
cap as a protective bulîer for the head, and the tape is
for lighting.
gripped securely its full width _in the cap instead of being 40
In the manufacture of the caps 11 by machine, the
cardboard sleeve 12 has a short length of the closure re
ceiving end thereof flared inwardly and folded inV annu-’
at the point of fastening when it has to be pulled upwardly
larly, as shown at 20 in FIG. 4, by the action of progres
to tear the paper covering to expose the ignition mate
sive dies, to approximately the same width as the annular
rial on the top of the cap before the cap iS twisted to 45 flange 21 of the metallic end closure 13. This closure
break it loose from the remainder of the paper covering
resembles a bottle cap and the cork 'disk 14 therein is
preliminary to the scratching of the ignition material
comparable, to what are used in suchcaps'. The closure
fastened only partway across in a haphazard manner with
a staple, so that there is less danger of the tape ripping off
against the exposed head of the fusee in the lighting
13 has a side wall 23 and a substantially flat upper wall
thereof..
27 of'a diameter large enough for closing the upper end
»
-
The invention is illustrated in the accompanying draw 50 of the sleeve 12 and has a concentric annular flange 21 of
ing, in which
smaller diameter projecting downwardly from an annular
FIG. l is a side view of a safety fusee, the cap of which ` horizontal lower wall 28 that extends inwardly from the
is made in accordance withV our Yinvention but is con->
top of kan inner side wall 29 that defines an annular shoul
cealed by the glued paper covering in the usual way, leav
der on its inner side for clinching engagement with the
55 inwardly ñared portion 20 of» the'closure 13 and another
ing only a short end portion of the pull tape exposed;
FIG. 2 shows the same fusee with the paper covering
annular shoulder on its outer side for clinching engage
ripped open by an upward pull on the tape, Vexposing theV Y ment with the marginal >edge portion'of the cork disk 14,
ignition material on top of the metal top closure, the
the »wall 29 being disposed in spaced concentric relation
cardboard sleeve being thereafter easily freed by twisting
to the aforesaid side Wall 23 and connected therewith at
the same to tear` the Vpaper covering so that the cap can 60 the bottom as at '30. The lower wall 28 is spaced from
be removed to expose the igniting head;
FIG. 3 is an enlarged view of the head end of the fusee,
showing the improved vconstruction of our invention in
Y
section, and
`
.
the upper wall27 to receive the marginal edge portion >24
ofthe cork disk 14 therebetween, and, in the clinching
operation, when the marginal portion of therclosure 13 is
l
swedged downwardly and inwardly to gripY the inwardly
FIG. 4 is a further enlarged sectional detail of a por 65 flared end 20 of the sleeve 12, as seen in FIGS. 3 and 4,
tion of the construction appearing in section in FIG. 3.
f the closure 13 gets the form seen in section in FIG. 4,
The same reference numerals are applied to corre
wherein the inner side wall ’29 is the one that grips the
sponding parts throughout these views.
1, '
Referring to the drawing, the reference numeral 5 des~
ignates a fusee generally having a spike 6 on the lower 70
end to drive into the ground after Vthe fusee has'been . '
inserted between the end of the sleeve 12 and the llange
lighted and is dropped, spike end down, to remain stand
21 of the closure 13 is firmly gripped in the clinching
inwardly flared end 20 from the outer side while the
inner side is gripped by the outwardly ñared lower por
tion V22 of flange 21. The end portion 25 of the tape 15
3,043,220
be gripped by the edge of the ñange in the clinching of
operation as it is pinched its full width between said parts
by the swedging of the ñange 21 outwardly and the swedg
ing of the outer portion 29-30 of the closure inwardly.
Consequently, there is no danger lof the tape being either
the closure onto said sleeve.
2. As an article of manufacture, a safety fusee cap for,
protective enclosure of the upper end of a fusee on which
an ignitable head is provided, comprising a tubular card
board sleeve closed at one end adapted to ñt closely on
the igniting end of the fusee, a short length of said one
pulled out ortorn oil in the ripping open of the paper
covering 1'6 at 17 and 18 preliminary to the removal of
the cap 11. lt goes without saying that this machine
made cap is not only much better but can be produced
end portion of said sleeve'being ilared inwardly with
more speedily and at some saving probably comparedto
respect to the longitudinal axis of said tubular sleeve, a
the cost of the old style caps, where the hollowed out 10 sheet metal cup-shaped closure having a substantially flat
wooden plug was set by hand with theend of the tape in
upper wall of a diameter large enough for closing the
the end of the cardboard sleeve and fastened by hand with
said one end portion of said sleeve and disposed over the
a staple. Also, with this cork-lined sheet metal top closure
same and having a downwardly extending annular side
13 on the cap, there is no need for inserting a Wad of
crumpled paper in the closed end of the cap as a buffer for
the igniting head 7 on the upper end of the f_usee, and that
means the elimination of an additional assembly operation
wall, means attached to said side wall which carries an
annular tlange, the diameter of said annular flange being
less than the diameter of said one end portion of said
sleeve so that said tlange lits inside thel said one end por
and, hence, an appreciable saving in labor cost.
tion of said sleeve, said llange being llared downwardly
In operation, the present cap 11 provides a better and
relative to said upper wall and radially with respect t0
far more dependable protective covering for the igniting 20 the longitudinal axis of said sleeve to clinch the closure
head end 7 of the fusee '5 than »tde old caps, not only be
cause the cork disk 14 is of uniform thickness (which was
not and could not be true of the wads of crumpled paper)
ner side, said means having an annular shoulder extend
all legitimate modifications and adaptations.
upper wall, said _disk being retained therein by its marginal
onto the said one end portion of said sleeve from the in
ing downwardly with respect to said upper wall into en
but also because the cork disk is always certain to be sup
gagement annularly with theV inwardly ilared end portion
ported at a predetermined distance above the head end 25 of said sleeve to clinch the closure onto said sleeve from
by the ilange 22» forming part of an annular shoulder in
the outer side.
'
side the upper end portion of the sleeve 12 bearing on the
3. An article of manufacture as set `forth in claim 2
end of the fusee annularly, as indicated at 26 in FIG. 3,
wherein said means is spaced from said tlat upper wall
in radially spaced relationship to the igniting button or
and said annular shoulder on said means is spaced radially
head 7 (which, it must be remembered is usually notV truly 30 inwardly toward said longitudinal axis from said side
circular and is furthermore not always of the same dimen
wall, a disk of relatively soft shock-absorbing material
sions and not always centrally located). Consequently,
being disposed on the inside of said closure against the
the danger of fracturing the igniting button or head 7 or
upper Wall, said disk being retained therein by its marginal
cracking it oil entirely is eliminated, and, of course, a
edge portion which extends into the space between said
fusee without such an igniting head is useless, and one 35 upper wall> and said means and further into the space
with a fractured head might ignite only with some dif
between said annular shoulder and said side wall.,
liculty, or not> at all, and it should also be remembered
4. An article o_f manufacture >as set forth in claim 2
that fusees are usually needed in an emergency and must
wherein said means is spaced from said tlat upper wall
therefore be “sure-Ere.”
'
Í
and said annular shoulder on said means is spaced radially
It is believed the foregoing description conveys a good 40 inwardly toward said longitudinal axis from said side
understanding of the objects and advantages of out- in
wall, a disk of relatively soft shock-absorbing material
vention. The appended claims haveV been drawn to cover
being disposed on the inside of said closure against the
edge portion which extends into the space between said
l. As an article of manufacture', a safety fusee cap for 45 upper Vwall and said meansV and further into the space
protective enclosure of the upper end of a fusee on which
an ignitable head -is provided, comprising a tubular card
between said annular shoulder and said side wall, there
being an _elongated llexible tape having one end portion
entered between the closure and the inwardly Yflared end
portion of said sleeve so as to be gripped firmly between
said parts in the clinching of the closure onto said sleeve.
board sleeve closed at one end adapted to ñt closely on
the igniting end of the fusee, said one end portion of said
sleeve being folded inwardly to'deñne a short inwardly
flared end portion with ‘respect to the longitudinal 'axis
5. Infa fusee, comprising a tubular casing containing
of said tubular sleeve, said end portion having `a double
wall thickness, a sheet metal cup-shaped closure having a
substantially ilat upper wall of a_ diameter lar‘geenough
an elongated cylindrical llare body having an ignitable
upper end on top of which is a centrally located ignit
ing head of less diameter than the ilare body that is.
for closing the said one end portion of said sleeve and
disposed over the sameV and having a downwardly extend
ignitable for safety only by sharp rubbing contact with
an ignition compound, and afremovable protective cap
covering the ignitableuppcr end of said fusee, the irn
ing annular side wall, means attached .to said side wall
which' carries an annular flange, the diameter o_f said an
provement which consists in the provision in said cap
forrprotective enclosure of the ignitable upper end of the
nular'ñangebeing less than the diameter rof saidl one end
portion of said sleeve so Íthat'said flange lits inside theVV
said one end portion of said sleeve, said flange being.
ilared downwardly relative tosaid upper wall and radial
ly outwardly relative t_o_ the longitudinal` axis of said
sleeve, said ilange and said means cooperatingtorclinch
60
fusee of a tubular cardboard sleeve fitting closely on the
ignitable upper end portion of the casing and havingA a
short` length of its. tubular upper end portion tlared
inwardly with respect to thevlongitudinal axis of said
tubular sleeve, a Ysheet metal cup-shaped closure having
the double thickness end. portion of said» sleeve to said 65 a substantially ilat upper wall ofa diameter large enough
for closing _the inwardly Vflared end portion of said sleeve
closure, said means defining an annular shoulder radially
vand disposed over the same and having a downwardly
between said ilange and the side wall and spaced from 'the
extending side wall, .means> attached `to said~side wall
upper wall, a disk of relatively soft shock absorbing mate
rial disposed inside sa'id- closure Vand having its marginal 70 which carries >an annular ~downwardly extending ilange
clinched ontosaid inwardly llaredy end portion of said
edge portion gripped between 'said annular shoulder and
sleeve from the inside, rand .a disk of shock-absorbing
said upper wall, and> an elongated ilexible tape securedï
material disposed inside said closure between said upper
at one end `to said closure, said Vtape having oneend por-_
wall and said means and secured by its marginal edgel
tion thereof` entered in ¿the said> one end portionY of said> portion therebetween inthe clinching of the flange onto
>sleeve between i_t and the tlange on the closure so as to, 75 the inner side of said inwardly ilared end-portion of
3,043,220
said sleeve, said disk being for protection of the igniting
ñange and the inwardly ñared end portion of the sleeve
head on the fusee against ignition in the event of contact
onto which the ñange isclinched from the inside together
therewith while the cap 'is on the casing, there being a
defining an annular shoulder inside the inwardly flared
coating of ignition material on the outer side of said
end portion of the sleeve arranged by engagement with
closure for use in lighting the fusee by rubbing contact
the upper end of the casing in radially spaced relation
with the igniting head when the cap is removed from the
to the igniting head to limit downward movement of
fusee, the ilange 'and the inwardly flared end portion of ~ the cap on the casing to'protect the igniting head against
the sleeve onto which the flange is clinched from the
accidental ignition.
inside together defining an annular shoulder inside the
` 7. A fusee as set forth in claim 5, including an elon
inwardly flared end portion of the sleeve in a predeter
gated flexible tape adapted to be secured at one end to
10
mined downwardly spaced relation to said disk of shock
said cap to extend over the outside thereof and protect
absorbing material arranged by engagement with the
the coating of ignition material thereon and also extend
upper end of the casing in radially spaced relation to
alongside the sleeve to ripV a paper covering applied over ,
the igniting head to limit downward movement of the
the cap and slee-’ve and adjacent portion of the body of
cap on the casing to further protect the igniting head
Vthe fusee, the tape having its one end to be secured
15 gripped between the annular ñange on the sheet metal
against accidental ignition.
l
,
l
6.1In a fusee, comprising a tubular casing containing
an elongated cylindrical flare body having an ignitable
closure and the inwardly itlared end portion offthe tubular
cardboard sleeve.
f
upper end on top of which is a centrally located ignit
8. A fusee as set forth in claim 6, including an elon
ing head of less diameter than the flare body that'ds
gated ilexible tape adapted to be secured at one end to
ignitable for safety only by sharp rubbing contact with 20 said cap to extend over the outside thereof and protect
an ignition compound, and a removable protective cap
r_the coating of ignition material thereon and also extend
covering the ignitable upper end of said fusee, >the im
provement which consists in the Vprovision in»V said cap
valongside the sleeve to grip a paper covering applied over
the cap and sleeve and adjacent portion of they body of
for protective enclosure of the ignitable upper end of the
the lfusee, thetape having its one end to be secured
fusee of a tubular Cardboard sleeve ñtting closely on the 25 gripped between the annular flange on the sheet metal
ignitable upper end portion of the casing and having a « closure and the inwardly flared end portion of the tubular
short length of its tubular upper end portion flared
cardboard sleeve.
inwardly with respect tothe longitudinal axis of said
tubular sleeve, and a sheet metal -cup-shaped closure
having a substantially llat upper wall of a diameter large 30
enough for closing the inwardly ñared end portion of
said sleeve and disposed over the same’and having a
downwardly extending side wall, means Iattached to said
side wall which carries an annular downwardly extend
ing ñange clinched onto said inwardly ñared end portion i 35
of said sleeve from the inside, there being a'coatîng of
ignition material on the outer side of said closure for
use in lighting the fusee by rubbing contact with the ignit
_ ing head when the cap is removed from the fusee, the 40
ReferencesCited in the ñle of this patent
UNITED STATES PATENTS
853,777
1,036,545
Dutcher ____________ __ May 14, 1907
Beadle' _____________ __ Aug. 27, 1912 ¿
1,045,033
Jackson ...... __ ____ __ Nov. 19, 1912
1,296,561
Ross _______________ __ Mar. 4, 19,19
1,327,899
Bemisderfer _________ __ Jan. 13, 1920
1,329,736 y Wiley _______________ __ Feb. 3, 1920
1,706,007
VVan Alstyne et al. ____ __ Mar. 19, 1929
1,969,120
Coakley _______ __ ____ __ Aug. 7, 1934
2,358,713
VHutt ____________ ____ Sept. `19, 1944
.
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