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Патент USA US2131428

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Sept. 27,1938.
G. DALKOWITZ
2,131,428‘ '
WRAPPING MACHINE
Filed Sept. 17, 1954
.
~
v
3 Sheets-Sheet 1
'
_
INVENTOR,
_ W9, Dalkpwitz
ATTORNE Y.
Sept. 27, 1938.
G. DALKOWITZ'
'
v
WRAPPING
>
2,131,428
MACHINE'
Filed Sept. 17, 1934
5 Sheets-Sheet 2
INVENTQR, - f
I
Sept. 27, 1938.
2,131,428“
G. DALKOWITZ
WRAPPING MACHINE
'
Filed Sept. 17,_ 1934
‘
v
'
3 Sheets-Sheet 3 ~'
‘
INVENTOR,
6011637 Dalko
BY
74%,
ATTO
EY.
'
~ 2,131,428
Patented Sept. 27, v1938
PATENT OFFICE.
UNITED STATES
.
2,131,428
WRAPPING MACHINE
v
Godfrey Dalkowitz, New York, N. Y., assignor to
American Safety Razor Corporation, Brooklyn,
N. Y., a corporation of Virginia
Application September 17, 1934, Serial No. 744,291
18 Claims. (Cl. 93—2)
bodiment of my invention in‘ the drawings,
This invention relates generally to a method
of wrapping ?at articles, and coordinately there
with to a. machine for carrying out such method.
While my method of wrapping is adapted for '
5 ?at articles of many forms, it has been found to
be of great advantage in connection with arti
cles of substantially rectangular ‘form such as
safety razor blades.
wherein:
-
_
Figure 1 is a view intended to illustrate the
various steps in the process of applying a wrap
per to a razor blade, the wrapper and therbladev» 5
being shown in perspective;
I
-v
‘ Figure 2 is a side elevation of a portion of a
wrapping machine for carrying out my method of
wrapping, such parts .of the machine as are on
~
The illustrative embodiment of a machine for
10 carrying out my method of wrappingis adapted .tirely conventional having been either/omitted 10'
shown in dotted lines;
particularly for the wrapping of safety razor or Figure
3 isa plan-view of the’ pprtion of a '
blades, which are of very thin sheet steel, and
of a form basically rectangular, and includes
means for positioning a blade in‘ relation to a
‘wrapping, machine shown in elevation in Figure 2;
16 sheet of paper of peculiar shape, and for fold- -
ing down protruding ends of the sheet over the
exposed surface of the blade. As will be appar
ent, however, after the principles of my machine
are fully understood, the same principlesapply
20 to the wrapping of other articles, and modifica
tion in detail is all that is necessary to adapt
the' machine for such other articles.
Among the general objects of my method‘ of
wrapping are the ef?cient and expeditious han
25 dling of the article and the wrapping material,
resulting in a product which will be an assembly
-
‘Figure 4 is a view in perspective illustrating l5
.. the arrangement for presenting a. wrapper in the
path of a razor blade to be wrapped;
_
Figure 5 is a sectional view taken on the lines
5—'-5 of Figures 2 and 3, looking in the directions
of the respective arrows, and=showing the ar- 20
rangement for receiving the preliminarily asso
ciated blade and‘wrapper and for presenting
them and passing them on to the folding devices’
for completing the wrapping operations;
Figure 6 is a view in perspective showing one 25.
of these folding devices;
1“igure 7 is a sectional view on the lines 'l-‘l .
of article and wrapper of uniform size no great,
' of Figures 2 and 3 looking in the directions of the
» er. than necessary for adequate protection, and
respective arrows and showing the channel and
of uniform and pleasing appearance, and afford
30 mg adequate protection to the article, while also,
guideway into which the wrapped blade is moved 3
during the course of the folding operations;
where the article is one such as a razor blade.
>
Figure 8 is a section on the line 8-8 of Fig
capable of injuring persons handling them‘, af
fording protection to such persons.
ure 3,_looking in the direction of the'arrows, ,
' illustrating the means for advancing the wrapped
coordinately therewith, among the objects of blade in the channel leading to the devices for 35 ,
35 my invention is the provision of a wrapper of ; further treating the wrapped blade;
’
improved type.
'
> Figure 9'is a sectionalview on the-lines 9—9
Among ‘the general objects of my vmachine is l of Figures 2 and 3, looking in the directions of
the provision of means for effectively carrying
out all the steps enumerated in connection with
40 my method. >
'
-
ing portions of the wrapper;
_
-
40
Figure ‘10 is a sectional view on the lines
I
Among the particular objects thereof may be ill-J0 of Figures 2 and 3, looking in vthe direc
mentioned the provision of improved means for ' tions of the respective arrows, showing another
presenting a wrapper to 'an unwrapped blade,
,»
the respective arrows, showing means for creas
' the provision of means for receiving such wrap-' '
portion of the‘ channel and the means associated
therewith for completing the folding operation; ‘45
45 per and blade in a preliminary associated ‘rela
‘Figures 11 and 12 are respectively sections on
tion; the provision of means for successively fold-. . the lines ll-ll and l'2-l2 of Figures 2'and 3,
ing‘down portions of-the wrapper into the po
lookingv in the direction of the respective arrows,
; sition necessary for the final associated relation
of wrapper and blade, and the provision of means
50 for creasing and folding portions of the wrapper
at the proper points.
.
_
For the attainment of these objects and such
*
otherioblectsaswill-h?'eiPa-ner “PM” °" be
55 pointed out, I have disclosed an illustrative em
showing successive stages of the wrapping op
erations and particularly the provision for cause 50
ing one ?ap of the wrapper to be superposed on
‘the other.
Figure 1371s a sectional view on the lines l3'—l3 '
of Figures 2 and 3, looking in the directions of
the arrows, showing a section of the guide chan- vg"
2
2,181,428 ,
nel near its terminal portions, and, also, in dotted
lines, a blade and wrapper assembly in its ‘?nal
form; and
'
Figure 14 is a perspective view intended to make
clear the motions of the various .parts of my
> machine in-their relation to eachother, conven
tional means for imparting the necessary motions
to all the parts of my improved mechanism being
shown.
.10 _In wrapping ?at articles such as razor blades,
it has hitherto been customary to take a wrapper
of rectangular shape, position the blade within
it, and thenyfold over the edges of the wrapper
so as to overlie and- completely enclose the blade.
15 Because. of the rectangular'shape of the wrapper,
when the article was placed with its edges par
allel to those of the wrapper, a problem was pre
sented by the corner portions of the wrapper, at
which there was excess material which had to be
20 disposed out of the way, with the result that,
when it was attempted to do so by folding, these
corner portions had to be overlapped and a con
struction involving many unnecessary layers of
wrapping material resulted, which made the
25 wrapped blade thicker than necessary and-which
caused it to present an irregular unsightly ap»
pearance. Of, necessity the process of wrapping
was also complicated.
On the other hand, where the article and the
34 are folded in relation to the body‘ 26 of the
wrapper so as to stand upwardly substantially at
right angles thereto. Suitable mechanism next
folds the ?ap 34 down ?at against the blade and
so that its end overlaps the end of the ?ap 23,
which are made of su?icient length for that pur 10
pose, and creasing mechanism next applies creases
to the wrapper along the lines 36 and 38 which
are positioned so as to be slightly spaced from
the edges of the blade, whereby assurance willbe
obtained that the outermost portions of the wrap 15
per will be spaced from the cutting edges of the
blade and injury to the shaving edges of the blade
- or to persons handling the wrapped blade ‘will
be prevented. This stagewill correspond to posi
tion e of Figure l. The ?nal’ stages in the wrap
ping operation involve a folding down of the side
?aps 30 and 32 so that one of them, say 30, over
lies the other ?ap 32, and for this purpose, as the
?gure shows at f, the folding of ?ap 32 is com
20
menced first while the ?ap 30 is held upright, 25
and thereafter the ?ap 30 is released and folded
the ?aps could not be made, to overlap properly
down so that its end portions overlap the end
portions of the ?ap 32, as shown at g‘ in Figure
1. The blade and wrapper assembly is now in its
?nal form and ready for the next operation, such 30
as, for example, the application of an outervwrap
so as to secure the necessary protection for the
per or label.
30 wrapper were positioned in a diagonal relation
article, unless again, portions of the wrapper
were overlapped unnecessarily.
By referring to Figure 1, the various steps in
35
volved in my improved. method of wrapping and
the advantages thereof over the methods hereto
fore employed» will be clearly understood. These
steps have been indicated by the letters a, b, c, d,
40
same while the ?ap 28 overlies it and is at the
trailing end of the blade instead of at the ad
vancing end. Before the blade reaches the final
position 11 just mentioned, the flaps 30, 32, and
e, f and g.
-
_
-
At the extreme right of Figure 2 I have shown
at W a wrapper, and at R a razor blade.
The
wrapper W is ?rst of all interposed in the path of
the blade and held stationary when blade and
45 wrapper have the relative positions shown in the
?gure at a, with one end of the blade positioned
along the line at which it is desired to fold the
wrapper. so as to cause one ?ap thereof to lie
over the blade. The arrow “indicates the feed
60 ' motion of the wrapper in order to bring it into its
proper position, although it is understood of
course that this is only by way of example, as the
motion may be e?ected from other directions
than the one shown.
When the wrapper W is
55 properly positioned and is stationary in such‘posi
tion, for which purpose the wrapper feed rollers,
as indicated at F in Figure 2 'are positioned so
as to release the wrapper when it reaches the
correct position, the blade R is moved in the di
-
I will now pass to a ‘description of a machine
adapted to carryout .the' steps of the process
just described. On referring to Figures 2 and 3, it 35
will be observed that my improved machine com
prises ?rst of all advancing means‘for the blades
indicated in dotted lines and denoted by the letter
P‘ in Figures 2 and 3, which, however, forms no
part of my invention, and a conventional mech 40
anism for presenting the wrappers one at a time,
indicated-in dotted lines in Figures 2 and 3, and
denoted by the letter F, which also is no part of
my invention. Further adjunctive to my inven
tion, without being a part thereof, is a stacking
arrangement S for holding the unwrapped razor
blades, and for permitting them to drop one at
a time’into the path ,of the advancing means P
and against a wrapper in the frame denoted as a.
whole by the letter A.‘
At B I have shown a spider provided with
jaws adapted for the reception of the vassociated
blade and wrapper,‘ such association resulting
from the action of the mechanism P which pushes
a blade against a wrapper, causing the latter to
double over the blade, as will be explained here
inafter. ‘This spider is moved intermittently as
will be described more in detail hereinafter, and
each movement of the spider rotates it through
rection indicated by the arrow 22, and in moving, ninety degrees. During the ?rst ninety-degree 60
it pushes the wrapper against a forming device ‘movement, the blade and wrapper newly received
to be hereinafter described so that the wrapper into the spider, are moved from the horizontal
is doubled up along the line 24, with the body receiving position to an intermediate or vertical
26 of the wrapper positioned‘ above the blade position, and during the second ninety degree
and ?at against it, and the ?ap 28 of the wrapper movement, they are again moved into a hori
flattened against the blade underneath it. -' This zontal position, which, however, is one in which
position is shown at b. By mechanism to be here
the wrapper and blade assembly is inverted as
inafter described the blade and wrapper assembly .;--I1pared to the initial horizontal position, while
is now inverted, and this is illustrated in Figure 1 at the same time during said second movement
70 in which the assembly is shown as passing from the flaps 30,32 and 34 are ‘preliminarily folded 70
the initial position b through an intermediate into an upstanding position, described in con
position 0 and into the ?nal position it of this nection with Figure 1,. and shown at d in said
part of the process, by which the body 26 of the ?gure. The pushing mechanism indicated at C
wrapper, which originally Wm folded ?at against now removes the blade and wrapper assembly
the upper vpart of the‘ blade now underlies the from the spider B, and into arteries of elements, 75
I
2,131,428
4
,
-'
'
3
referred to collectively by the letter D, which per- - from 3, they travel step-wise, in accordance with
form the ?nal folding operations described in the motion of 0, along the channel L leading
from D and into the next adjacent mechanism E,
connection with Figure 1, and pushes the‘ com
pletely wrapped blade along the channel L and and the ?nal wrapping operations are effected
while they travel along this channel. It will -be 5
’ 5 into the mechanism for storing or'further proc
essing, indicated by E, and forming no part of the understood that at each revolution of the main
shaft 0 an unwrapped blade enters the vspider
present invention.
The cycle of operations of the machine, par- ' B and a wrapped blade leaves. the ,channel L,
- tlcularly in relation to the timing of the various ‘as will be described more in detail hereinafter.
G denotes the body or main frame of the ma- .10
10 movements, will now be described in connection
‘ with Figure 14, which shows, illus‘tratively, chine, within which is supported the actuating
mechanism for moving the various elements of
mechanism as described in connection with Figure
relation. It is to be understood, however, that
mechanism which is the subject of this appli
my invention approximately in the proper timed , 14, and which serves to support‘ the wrapping
15 this showing is highly simpli?ed so as to facili
cation.
' scribed in‘ detail.
_ where the speed variation of a crank is not the
20 ideal for the intended purpose.
’
,
~
'
15
ments comprised in the mechanism will be de- ‘
many re?nements of an actual machine, such as,
for instance, the use of cams instead of cranks,
'
,After this. preliminary explanation, the ele
tate explanation, and that it does not embody the
_
0n referring to Figure 14, it ‘will be observed
7
Referring to Figure 4 which illustrates in per
spective that portion of my machine which has 20
been referred to in connection with Figures 2
and 3, as A, it will be observed that to a portion '
that the actuating mechanism is shown as com
prising a main shaft 0 driven by a motor M. . .80 of the frame of the machine is’attached a
The shaft 0 carries a pair of cranks S and T plate-like member 62 that is recessed to receive
' 25 disposed-similarly in relation to. each other, the . the projecting end flap "of the wrapper W. A 25
crank T being connected by a link TI to a plate 6‘ is positioned in front of the member 82
rocker arm U carried by the rockshaft V, which
rockshaft through a rocker arm Pl carried at
its other end, serves to actuate the blade pushing
_30 mechanism P, as is clearly shown in the ?gure.
The crank S on the other hand, as it- turns, actu
ates a connecting rod K, designed to reciprocate
the pushing mechanism C for advancing the
wrapped blades. As will be later described, a por
- 35 tion of the pushing mechanism Cis in the form
of an- extension serving to remove the’ blade and
wrapper assembly from the spider B, which is
?xedly mountedon a shaft 12 that also carries
the cam wheel of a Geneva stop motion ?xed
40 thereon, which, together with its actuating wheel,
is indicated at Z in Figure 14, and which is driven
' through an intermediate shaft 13 from the main
shaft 0.
e
.
'
.
The timed relationship of the actuating mech
45 anism in connection with Figure 14 may nowbe
discussed as follows: When C and P move toward
so as to prevent forward displacement of the ?ap
28 from its seat within the recess of member ‘I. ‘
A pair of elements 56 and 68, most clearly shown
in Figure 2, provide a guideway wherein the so V ' _
wrapper as it leaves the rollers F is guided, so
that ultimately its end ?ap,“ will enter the recess '
in 62 as already described. Members ‘I! and M
are vertically spaced so as to leave a horizontal
slit between them, this slit being intended for '36
the passage therethrough of a razor blade 8 from
the bed of the machine and into one of the jaws
of the spider B. This is clearly shown in Figures
'2 and 4. The'position of the wrapper W is such
that asv the blade S, passes through the slit it "a
engagesthe wrapper at the junction of the ?ap 18
thereof with its body portion 26, that is to say,
at that portion at which the fold is to be made in
the wrapper.
Passing, now on to the spider B ltwill be observed a
that the same comprises a hub ‘Ilmountedin ?xed
the left, the extension 90 of C, (see Figure 2) . relation on ,a shaft 12, already mentioned in con
actsv to remove a blade and wrapper assembly nection withv the disclosure of Figure 14 as being
from the spider B, which is stationary. and at actuated stepwise by the Geneva stop motion
'50 the ‘same time P pushes a new razor blade against mechanism Z. Attached to each side of hub "
a wrapper and into the-adjacent jaw of spider ‘I0 is a cross shaped plate ‘ll. 'Each arm of the
.B. When C and P move backward to the right, ‘ plates 14 is slitted radially as indicated at ‘II
the extension 90 of 0 moves backward toward in Figures 2 and 5, thereby forming a space with-_
the shaft 12 so as to be positioned in-back of in which the blade andwrapper assembly may
55 the blade and wrapper assembly to be next pushed be received and for this purpose the shaft 12 I‘
is mounted at‘such a level that the slits ‘I. of
out of the spider B, and P similarly moves in rela
tion to the stack 8 so as tobe positioned in back the horizontally positioned arms of plates 14 are
of the next blade to be pushed out. Wiiilethis
is taking place, a fresh wrapper W has been fed
Gil-into’ place, and the spider B has advanced a
quarter turn so as to present toward the wrapper
and empty blade and wrapper assembling jaw
and to the opposite side a jaw containing a blade
and wrapper assembly ready to be removed. - The‘
65 timing is so adjusted, however, that the extension ,
90 of C, which removes the blade from B, reaches
‘ its extreme right hand or rearward position before
the blade and wrapper assembly about to be re
moved become positioned for such removal.
‘1'0
It will be noted that whereas a blade. and
wrapper assembly is inserted and another assem
bly is removed at each quarter turn of spider 3,
two quarter turns elapse before .any particular
assembly advances from its entrance position to
18 its removal position. After removal of the blades
aligned with theyguideways'for the blades or
blade and wrapper assemblies on each side
- thereof.
0
' In. order tohold the ,blade and wrapper as
semblies in position within the slits a resilient
gripping jaw constructionis used, which will be ‘
understood by‘ reference to Figure 5 in conjunc-v
tion with Figures 2 and 3. It will be observed 65
from these ?gures that one surface of the jaw
is formed by a ‘pair of plates 18, one carried by
each of the members ‘ll on‘the inside thereof. -
These plates are made removable and may be
of hard, wear-resisting material. The other jaw 70 '
surface is constituted by a pair of resiliently hung
elements .0, each‘ of channeled conformation and
adapted to 'slidably receive a member ‘ll within
its channel, and held in place by a pair of screws
.02 passing ‘freely through bores 84 in plate ‘ll 1‘
2,181,428
and also through a plate 06 removably carried
,by said plate 14. Plate 801 has the function of
preventing passage of the heads.’ of the screws
.02 therethrough and of acting as an abutment
tion of motion does not act as a stop.
For con
for spiral compression springs 88 acting between
venience of construction, as shown in Figure "I,
one side of the pivot I02 may be carried by a
plate 86 and element 80 so as to cause the-said
member “4, removably carried by 96.
elements 80 always to press resiliently against the
10
tension I08 will thereby be caused to -move to
the right, being free to do so and in this direc
Passing now to a consideration of the guide
plates 18, or against a blade and wrapper assem
channel L, it will be observed on viewing Figures ,
bly, if that is interposed.
2, .3 and 7 to 13 inclusive that the same com
It will be understood that as a blade and wrap
per assembly is pushed forward into a jaw of
spider B, the elements 80 will yield upward
sufllciently to permit the entry of the blade and
wrapper assembly therebetween and the plates
15 18, which entry is facilitated by the flare of the
entrance portions indicated at ‘I3 in Figure 2.
The assembly will then be held in place by the
spring pressure.
_
As a result of the motion of spider B, the
20 blade is next advanced through two quarter turns
_ of the spider, as has already been described,
and as a result of this movement, it reaches a
position diametrically opposite to its entering
prises bed frame constituted by two parallel mem
bers IIO that are spaced from each other so as
10'
to permit the pushing elements 96 and I00 to
move in the intermediate space.
Members IIO
are supported at a convenient point from the
main frame G 'of the machine, as by a suitable
bracket
H8.
4
-
Carried by the extensions III of the mem
bers H0 and aligned thereon are a succession
of‘devices, heretofore referred to as D, which
complete the folding of the wrapper, and these 20
will now be described in succession, commencing
at the right hand end of the assembly D as shown
in Figures 2 and 3.
position. The blade is also reversed ‘during this ‘
As the blade and wrapper assembly is moved
by the spider B from an upstanding position to
movement, so that ?ap 28 which at ?rst was un
derneath the blade, and at ‘its advancing end,
the horizontal discharge position, the ends or
is now uppermost and at the rear end of the . ?aps 30, 32 and 34 of the wrapper W, which pro
blade. During this movement also, the flaps 34,
ject laterally from the spider B, come in contact
32 and 30 are caused to stand upright by con
with the edges of a folding device, shown in per
tact with a certain element of that portion of , spective in Figure 6, and in elevation and plan in 30
the machine which has heretofore been desig- ' Figures 2 and 3 respectively, and comprising two
nated collectively by D.
Removal of the blade and wrapper assembly is
effected by the arm 90, forming a part of the,
pushing mechanism C and extending upwardly
into the space between the members ‘I4 and in
back of the blade and wrapper assembly when
in position within the jaws. It will be observed
that the inner or bottom walls 11 of the slits
“£6, which form stops for the blade and wrapper
assemblies are spaced from the- hub 10, and it
is in this space between Walls 11 and the pe--v
riphery of the hub that the arm 90 is located
prior to its removing motion. The reason for.
the use of a pair of spaced members ‘I4 will now
be obvious, this being so in order to permit the
free‘turning of the spider B, while the arm 90
moves backward and forward through the gap
between the two side members 14 thereof.
Arm 90 is carried by a bracket 92 which is
caused to reciprocate by the connecting rod K
mentioned in connection with Figure 14. An
extension 94 of this bracket, shown in the form
of a straight bar, carries thereon, at intervals,
pusher members 96, the detailed construction‘ of
which is disclosed in Figure 8, and which serve
to advance the blades along the track L. The
extension 94 is supported at intervals from D
as indicated at 98, in sliding relation thereto,
whereby it is free to slide back and forth.
Referring to Figures 7 and 8 it will be noted
that each pusher member 86 carries at its upper
end an element I00 pivotally mounted at I02
on the pusher member 98 and formed with an
upper inclined face I04. A spring I06 is inter
posed between I04 and 96 so that if the element"
side plates H8 and I20 and an arcuately formed
piece I22 which is curved along a cylindrical sur
face concentric with the spider B. The piece I22
engages the flap 34 with its upper edge I24 at its 35
juncture with the body 28 of the wrapper and
thereby folds it so as to bring it into the up
standing position shown in Figure 1 at d, and re
tains it in such a position until it reaches the
lower edge I28 of the member I22. This lower 40
edge is positioned so as to leave a small space
between it and the members I I0, and the blade, as
it is pushed out of the spider B, passes under
neath the lower edge I26 and between the same
and the members I I0 with the result that the flap
34 is now folded ?at down on the face of the
blade and retained in such position by the said
lower edge I28, and when the flap passes beyond
the zone of action of I28, the ?ap is still kept in
its downwardly folded position by means later 50
to be described. The member'l22 is shown in the
drawings as joined to the part H8 at its upper
portion for purposes of support, while it is free
of the part I20. This construction is illustrative
merely as it is quite obvious that the part, I22 50
might be supported otherwise than from the part
H8, or on the other hand it might be supported
‘from both Ill and I20. The particular advan
tages resulting ‘from the construction shown is
that the upstanding side flap 32 of the wrapper 60
may pass through the space I2I left between parts
I22 and I20. ,A similar space I23 (see Figures 3
and 6) isleft between parts I22 and H8 at the
lower part of I22 to permit the passage of the }
flap 80.
.
65
After ?ap 84 is bent upward by edge I 24 the
I00 as- it moves to the left in‘ Figure 8 strikes motion of the spider B causes ?'ap >30 to be en
an object, it will push the same toward the left, gaged by the upper edge I28 of the part I I I and at
because contact of an extension I08 thereof with the same time the upper edge I30 of the part
member 96 prevents its yielding. 0n the other I20 engages the flap 32 so as to bring these flaps 70
into a vertical position, as indicated at din Fig
hand as it moves to the right, if it meets an ob
struction positioned in the channel L, it will ure 1. When the blade and wrapper assembly is
yield by pivoting about I02,‘ whereby its nose or
high portion “2 will be depressed permitting it
v to slide, underneath the obstruction. The ex
discharged from the spider B, these ?aps remain
in their upstanding position due to contact with
thefmembers H8 and I20'and to the elasticity of -
2,181,428
5 .
the paper, which retains the ?aps resiliently
indicated at m, with a gradual diminution of the
against said members “8 and I20. The assembly
?are as the assembly advances, and the effect of -
' next passes into a channel formed by the mem
bers H8 and I20 and guide members I32 and I34,
this is shown in Figures ll, 12 and 13, in which
the ?aps 30 and 32 are shown bent downward
mounted respectively on the pieces H8 and I20, - slightly by theupper wall I14 of the recess, as in
and having inner portions I36 and I38, which Figure 11, and then bent farther down as shown
serve to con?ne the flaps 30 and 32 in the narrow in Figure 12, and bent completely down as in
channels formed between them and-members H8 Figure 13 which shows a section of the channel
and I20, whereby these flaps are kept positively at which the undercut is no longer ?ared. Upon
10
10 in upstanding relation. Lateral extensions I40 comparing these views‘ with Figure 3, it will be
formed on the end portions of I36 and I38 and noted that because of thisincrease in ?are of
positioned in parallelism with-the extension IIIv the undercut, the inner edges of'members I66 and
I68 are cut away in contour toward their right
of members I I0 so as to leave a small space there
between, engage the downwardly folded ?ap 34," hand ends to form a channel increasing in width
15 and keep it in its downwardly folded position, the toward the right, or considered from the stand 15
space being just suf?cient to accomplish that point of the blade assembly, decreasing in width
as the assembly advances. Grooves I16 may be
The blade and wrapper assembly continues in provided in the pieces I66 and I66 and similar
its passage between the members I58 and I20 grooves G18 may be provided in the bed members
IIO to accommodate any wrinkles or folds that 20
20 until it reaches a pair of creasing rollers I46
and I46 positioned within the channel, and shown may be formed in the wrapper during the folding
in detail in Figure 9. These rollers have their process, and thereby insure smoothness of action‘.
‘ edges beveled and are inclined at an angle to
These grooves run parallel to eachother and to v
the members I I0 forming the bed of the channel, the walls I12.
,
.
The member I62 already mentioned, which is 25
25 so that the beveled edge projects directly into
the corner formed at the meeting of parts I I8 and shown as in the form of a vane, and the function
I20 ‘with the members H0. The rollers I66 and of which is to cause ?ap 32 to fold down in ad
I66 are mounted for rotation on membersl50 and vance of the folding down of the ?ap30, is car-'
ried by' an angular member I10, the horizontal '
I52, pivotally mounted at I56 and I56 on ele
leg of which is positioned between the pieces I66 80'
30 ments I58 and I60 carried by the members H8
and I20, and are resiliently urged into the corners and I68 at the entrance thereof and has the
of {the channel and against the wrapper by the vane I82 mounted thereon. Member I10 is
pressure of springs I62 and I66 suitably positioned shown as supported from the bed I I0 by a bracket
between the pairs of members E58, 658 and I52, member I80 to which the vertical leg of member
110 is attached. The action of vane I82 will be
I60.
~
Rollers I66 and I08 serve to apply a crease, understood from an inspection of Figures 11 and
that is, to form a sharp bend, in the wrapper be
12, which show consecutive sections through the
tween the ?aps30 and 32 and the body 26 of horizontal leg of the member I10. In Figure 11,
the wrapper. Their- action assures the formation the flaps 30 and 32 are shown at the commence
of creases slightly spaced from the shaving edges ment of the downwardly folding operation while
40
of the blade, so that in the ?nished assembly the in Figure 12, ?ap 32 has been folded down on the
razor blade edges will be spaced from the creases upper surface of member I10, whereas the ?ap 30
and thereby be adequately protected, and at the is prevented from lying down ?at by the vane
same time, a person handling the package will
E82. As soon as the blade and wrapper assembly
purpose.
'
.
'
'
be protected against injury due to such spacing.
45 For example, where the width of a double edged
razor blade from shaving edge‘ to shaving edge is
seven-eighths of an inch the creases may be
spaced one inch or slightly less. In addition, the
formation of the creases at these points by this
or similar mechanism assures a neat looking
package.
The ?nal stages of the wrapping operation in
clude the folding down on the blade of the flaps
55
30' and 32 in such a manner that the ?ap 32 will
be ?rst folded down to be followed by the flap 30
superposed thereon. For this purpose a pair of
grooved guide members I66 and I68 is applied to
the bed frame members IIO, the function of
00 which is to fold- down the side ?aps 30 and 32,
and positioned between said members is an ele
ment I82, the function of which it is to prevent_
' ?ap 36 from being folded ?at on the blade until
flap 32 has been at leastpartly folded down.
05 The construction of the members‘ I66 and I68
clearly appears from Figures 11, 12 and 13,
viewed in conjunction with'Figure 3. Each of
passes beyond the limits of the member I10 the ,
?ap 30 is completely released, and, as a result of
the action of the grooves in members I66 and I68,
folds down over the ?ap 32 which has assumed a
horizontal position in advance of the flap 30. This
last condition is illustrated in Figure 13, which
represents a cross section through the wrapper‘
and blade assembly in its ?nal form.
It has already been mentioned that advance of
the blade and wrapper assemblies along the
channel of D is effected by the pusher elements 55
96, which are spaced at intervals along the'chan
nel and cause the advance of all the blade and
wrapper assemblies within the channel by a dis
tance equal to that of one blade at each operation
60
of the pusher elements.
At each operation of the pusher elements 96,
the advance blade and wrapper assembly, that
is, the assembly at the left hand end of the chain
of assemblies moving along the channel is moved
into the succeeding mechanism, indicated in dot v65
ted lines and by the letter E in Figures 2' and 3.v
In these ?gures it is shown as a wrapping mecha
these members is provided with an undercut or . nism similar to the one forming ‘the subject of
recessed portion I12 which forms the side ‘wall of this invention, and such as would be adapted-to
70 the guide channel. The walls of the two portions place an outer wrapper or label over the wrapper 70
I12 together de?ne a channel of uniform width,
this width being just sui?cient to contain the
applied by the machine disclosed herein. How-,
ever, it will be obvious that the mechanism E
blade and wrapper assembly and to permit the may be of any type desired, in accordance with
same to slide therebetween. The upper walls of v the character of the- processing to which the
75 the recessed portions I12 are ?ared inwardly as blade and wrapper assembly is to be subjected;
6.
2,181,428
.
While I have herein disclosed by way of ex . the channel, and said rollers being rotatably
ample, one embodiment of my machine, it will carried by a member pivotally and resiliently
mounted and adapted to_cause the beveled por
be obvious that the same may assume many other
forms as will be obvious to those skilled in the ‘tions of said rollers to contact with the walls of
art, without departing from the spirit of the in
vention as de?ned in the appended claims, and
it will also be obvious that the practice of my
method of blade wrapping is not restricted to
the operation of the machine herein disclosed.
Having thus described my invention and illus
10
trated its use, what I claim as new and desire
to secure by Letters Patent is:
1. Apparatus for wrapping razor blades com
the channel at said corners so that as a blade .
and wrapper assembly passes along the channel
with portions thereof horizontal and contacting
‘with the bottom thereof and other portions up
standing and contacting with said side walls, said
beveled rollers will form creases at the line of
junction horizontal portions of said wrapper with
prising a wrapper positioning member for hold
15 ing a wrapper across the path of an advancing
razor blade so as to be engaged thereby and
folded over the same so as to form a wrapper
and blade ‘assembly, an intermittently rotatable
member having means therein for receiving and
the upstanding portions thereof.
5. In a wrapping machine for safety razor
blades, a guide channel construction for guiding, a razor blade and wrapper assembly comprising 15
a channel having bottom walls and side walls,
and a guide member carried by each side wall
and having portions disposed in parallel rela
tion to said side walls and spaced so as to permit
20 holding said wrapper and blade assembly while ' a portion of the wrapper to pass therebetween 20
said member is in a stationary position, a guide
channel for said assembly, means to remove said
and the side wall, and having other portions dis
posed in parallel relation to said bottom walls
assembly from said member while it is in another
and spaced therefrom so as to barely permit
said assembly to pass therebetween, said last
stationary position and to push it into said guide
channel, folding means for preliminarily folding
portions of said wrapper into an intermediate
position perpendicular to the body of the wrap
per before the entry of said assembly into said
named portions being provided with upwardly di
rected guide portions for providing a. gradual
approach to the entrance of the assembly into
the channel.
channel. means for advancing said assembly
6. A guide channel construction for guiding a
30 along said channel, guide means for retaining razor blade 5‘and wrapper assembly comprising
said last-mentioned portions of said wrapper in laterally spaced bottom members for said chan
said perpendicular position, means for causing nel, advancing means positioned for Ireciproca
other portions of said wrapper to assume an tion within the space between said members, and
overlying relation to the blade, creasing means having means‘engaging said assembly for the
for creasing the line of junction of said perpen
purpose of advancing the same, sidewalls up
dicular flaps with the body of the wrapper, means standing from said members and de?ning the
for retaining said overlying portions in said over
sides of a channel wide enough to receive a blade
lying relation to the blade, means for folding and wrapper assembly, and guide elements car
the perpendicular portions into an overlying po
ried by each of said side walls, said guide ele
sition to the blade "and to said ?rst-mentioned ments each comprising an upstanding portion
overlying portions and means for preventing the parallel to one of said side walls and spaced
folding down of certain of said perpendicular therefrom su?iciently to receive 'a portion of the
portions until the other perpendicular portions wrapper while said portion is in upstanding po
have been folded down so as to overlie the blade . sition and each of said elements also having a
andmeans for receiving the completed blade and
45 wrapper assembly after its passage throughsaid
horizontally disposed terminal section disposed in
parallelism to said bottom members and provided
'
'
with an upwardly curved extension at its for
2. In apparatus for wrapping razor blades: ' ward end adapted to engage a portion of the
channel.
means-for positioning a wrapper in the path of
an advancing razor blade and for effecting an
60 assembly of said blade and wrapper, intermit
tently moving means for receiving said assembly Y
and stationary portions adapted to cooperate
wrapper at the front of the assembly and to fold
the same in overlying relation to the assembly
and to hold it in said- overlying relation.
_
7. A guide channel construction for guiding a
razor blade and wrapper assembly comprising
laterally spacedbottom members for said chan
nel, advancing means positioned for reciproca
tion within the space between said members, and
with said moving means for folding portions of
said wrapper into a position perpendicular to the
55 blade, a‘ guide channel for said assembly, means
for'removing said assembly from said intermit
tently movingv means while it is stationary and having means engaging said assembly for the
'of advancing the same, side walls up
into said channel, and means, operative while purpose
standing
said members and defining the
said assembly is in said channel, for folding said sides of a from
channel wide enough to receive a blade
60 perpendicular portions‘so ‘that they overlie said
blade, whereby a substantially ?at blade and and wrapper assembly, and'guide elements car
ried by each of said side walls, said guide ele
wrapper assembly will be produced.
ments
each comprising an upstanding Portion
3. A construction as defined in claim 2 in
which the last-mentioned means effects the‘ fold- parallel and adjacent to one of said side walls
and spaced therefrom suillclently to receive a
65 ing of 'various' portions of the wrapper suc
cessively. so that each folded portion overlies the , portion of the wrapper in the space therebetween
blade and each'portion of the wrapper previously -
folded.
awhile said wrapper portionis in upstanding posi
on.
8. In combination, a member- adapted to re
_ 4. In wrapping mechanism, means for forming
ceive a razor blade and wrapper assembly in
creases
in
a
wrapper,
said
means
comprising
a
70
channel portion having a bottom and upstanding _ which the wrapper has a body portion and ?aps
side walls, a pair’ of beveled rollers angularly
inclined within said channel so that their beveled
portion is directed into-the corners formed by
75 the meeting of the side walls with the bottom of
projecting therefrom, in which the body portion
of. the wrapper overlies one side of the blade,
and in whichthe line of juncture of the body of
the wrapper and a ?ap constitutes the advancing
_
WI
10
,
7 .
2,181,428 '
edge, said member being adapted to invert the anoverlying relation’ to the blade, means over
lying the channel and positioned between the lat- “
assembly so that the bottom thereof becomes the
top and the trailing edge becomes the leading eral members thereof,.and spaced from the bed of
edge, means active while said assembly is being the channel so as to permit the passage there
inverted, for folding the remaining flaps of the under of a blade and wrapper assembly, and
wrapper into a position perpendicular to the spaced from said lateral members so as to permit
blade, 3. guide channel along which the blade the passage of lateral upstanding portions. of the
wrapper, and an element carried by said meansv
and wrapper assembly may advance, means as
sociated with such channel for retaining two of and adapted to engage portions of one of'said
said ?aps of the wrapper in said perpendicular lateral upstanding portions and to prevent its be 10'
position and for folding down the otheri'iaps ing brought into overlying relation to the assem- .
thereof, means for crossing the juncture of the bly by the action of the grooves of the lateral
perpendicularly positioned ?aps with the body members until the other lateral upstanding por
portion of the wrapper so as to cause them to'fold tions have been brought into said overlying rela
15 accurately along predetermined lines, and means
15
.
11. In mechanism for wrapping razor blades, a
guide channel for conducting a blade and wrap
per assembly, said channel comprising a bottom
surface and lateral‘ members upstanding there
from, said lateral members having grooves there 20
in adapted to slidably engage the sides of a wrap
per and blade assembly, and the walls of said
tion.
for causing the downward folding of said perpen
dicularly positioned flaps so as to cause them to
overlie the blade, said means comprising lateral
guide grooves associated with said channel,' said
20 grooves having opposed walls converging toward
the side walls of the channel, the degree of con
' vergence of said walls graduallydecreasing to a
position of parallelism and means near the en
grooves diverging outwardly, with the divergence
trance of said last grooves and positioned in the
channel between said grooves, whereby one of
said perpendicular ?aps will be prevented from
assuming a position overlying the blade until the
other perpendicular ?ap has ?rst assumed its
increasing toward the entrance of the channel
and decreasing toward the exit end thereof, so 25
that at the exit end of said grooves their walls are -
parallel, whereby lateral upstanding portions of
the wrapper, as the assembly enters the channel,
will be gradually folded down until they assume
an overlying relation to the blade, and means,
9.
In
combination,
a
member
adapted
to
re
80
ceive a razor blade and wrapper assembly in * other than the ‘walls of said grooves, for delaying
which the wrapper has a body portion and ?aps the'folding of certain of the upstanding portions
projecting therefrom, in which ‘the body portion until other portions have been folded into over
I
of the wrapper overlies one side of the blade, and lying relations.
12. In a wrapping machine: a rotatable mem
in which the line of juncture of the body of the
wrapper and a ?ap constitutes the advancing ber comprising a pair of laterally spaced spiders
overlying position.
'
edge, said member being adapted to invert the
assembly so that the bottom thereof becomes the
having opposed-slots therein, and the slots of the
‘spiders being in lateral registration, a jaw mem
top and the trailing edge becomes the leading
ber slidably associated with one side. of each slot
40 edge, means active‘while said assembly is being
inverted, for folding the remaining ?aps of the
wrapper into a position perpendicular to the
blade, a guide channel along which the blade and
wrapper assembly may advance, means associ
ated with such channel for retaining two of said
?aps of the wrapper in said perpendicular posi
tion and for folding down the other ?aps thereof,
and means for causing the downward folding of
said perpendicularly positioned flaps so as to
cause them to overlie the blade, said means com
prising lateral guide grooves associated with said
channel, said grooves having opposed walls con
verging toward the side walls of the channel, the
degree of convergence of said walls gradually
decreasing to a position of parallelism and means‘
near the entrance of said last grooves and posi
tioned in the channel between said grooves,
whereby one of said perpendicular ?aps will be
prevented from assuming a position overlying the
blade until the other perpendicular ?ap has ?rst
assumed its overlying position.
in such a manner that its face is always substan
tially parallel to the other side of the slot and
resilient means tending to urgesaid jaw member
into contact with the said opposite side of the
slot, whereby, when an article is inserted within '
said slots, it will be held therein by resilient fric
tion.
‘
_
-
13. In a wrapping mechanism, means to receive
an article having a wrapper associated therewith,
said wrapper being of such width in relation to
‘said means that the sides and an end of the
wrapper protrude from said means, and said
means being movable, and a single ‘unitary bend~
ing means positioned so as to engage the protrud
ing portions of said wrapper when said article re
ceiving means moves relatively to said bending
means, said bending means comprising a portion
adapted‘ to engage and to bend the protruding end
of the wrapper into perpendicular relation to the
body of the wrapper, and said bending means also
comprising other portions positioned in proximity
to said ?rst mentioned portion and adapted to
10. In mechanism for wrapping razor blades,
a guide channel for conducting a blade and
engage and to bend the protruding sides of the
wrapper after said end bending means has bent
wrapper assembly, said channel comprising a
the end of the wrapper.
‘
'
14. In a wrapping mechanism: means to re- ;
bottom surface and lateral members upstanding ‘
therefrom, said lateral members having grooves
therein adapted to slidably engage the ‘sides of a
ceive an article having a wrapper associated there
with, said wrapper-being so dimensioned that por- '
wrapper and blade assembly, and the walls of - tions thereof protrude from said means, said »
said grooves diverging outwardly, with the di-- means being movable, and a single'unitary sta;
70
vergence increasing toward the entrance of the
channel and decreasing toward the end thereof,
so that at the end of said grooves their walls are
parallel, whereby lateral upstanding portions of
the wrapper, as the assembly enters the channel,
75 will be gradually folded down until they assume
tionary bending means positioned so as to engage 70
the protruding portions of said wrapper when
said article receiving means moves relatively‘ to
said bending means, said bending means compris
ing a portion adapted to engage and tobend ?rst
one protruding portion of the wrapper into para 1‘
2,181,428
pendicular relation to the body of the wrapper,
and said bending means also comprising other
_ portions adapted to engage and to bend other
1'7. In a wrapping mechanism, means for form
ing creases in a wrapper, said means comprising
a channel portion having a bottom and upstand
protruding portions of the wrapper immediately ing side walls, a pair of beveled rollers angularly
after said ?rst-mentioned portions have been > inclined within said channel so that their beveled
portion is directed into the comers formed by the
bent.
15. In a wrapping mechanism: rotating means
~adapted to receive an article having a wrapper
associated therewith, said wrapper being so di
10 mensioned that portions thereof protrude from
said rotating means and stationary bending
means positioned so as to engage the protruding
meeting of the side walls with the bottom of the
channel, so that as a blade and wrapper assembly
passes along the channel with portions thereof .
horizontal and contacting with the bottom there 10
of and other portions upstanding and contacting,
with said side walls, said beveled rollers will form
ends of said wrapper when said article receiving creases at the line of Junction of said horizontal
means moves relatively to said bending means, ‘portions of said wrapper with the upstanding
said bending means comprising an arcuate por
portions thereof.
tion closely contacting the peripheral portions of
‘18. In a wrapping mechanism, a guide channel
adapted to receive a partly wrapped article in
,
15
said rotating means and adapted to engage and
to bend the protruding end of the wrapper into which two extensions of the wrapper have been .
perpendicular relation to the body of the wrapper, caused to assume an upstanding position in rela
and said bending means also comprising ?at por
tion to the body thereof, means associated with 20
tions closely contacting the sides of said rotating , said channel for retaining said extensions in their
means and adapted to'engage and to bend the upstanding position, and- for folding down the
protruding side portions of the wrapper.
other ?aps thereof, means for creasing the junc
16. In a wrapping mechanism: a combination ture of the perpendicularly positioned flaps with
of parts adapted to complete the wrapping of a the body portion of the wrapper so as to cause
partly wrapped article having portions of the
wrapper upstanding from the main body thereof,
said combination comprising means for folding
down one of said upstanding portions, adapted to
them to fold accurately along predetermined lines,
receive and to guide the remaining upstanding
prising laterai guide grooves associated with said
channel, said grooves having opposed walls con
verging toward the side walls of the channel, the
degree of convergence of said wallsgradually de
creasing to a position of parallelism and means
near the entrance of said last grooves and posi
tioned in the channel between said grooves, where
by one of said perpendicular ?aps will be pre
vented from assuming a position overlying the
portions 'of- the wrapper therebetween, creasing
means for creasing the wrapper along the junc
tion of the body of the wrapper and the said re
maining upstanding portions thereof, means for
folding one of said remaining upstanding portions
into engagement with said article and wrapper
assembly, and means to fold the other upstand
ing portion down over said ?rst-mentioned up
standing portion,.and means to prevent the fold
ing down of said second mentioned portion until
said first mentioned portion is folded down. .
and means for causing the downward folding of
said perpendicularly positioned flaps so as to _
cause them to overlie the blade, said means com
blade until the other perpendicular flap has first
assumed its overlying position.
40
GODFREY DALKOWI'I‘Z.
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