Improvements in Machinery for the Manufacture of Pie Dish Collars or Frills and analogous articles
Year: 1891

page_text: Date of Application, 30th Apr., 1891
Complete Specification Left, 1st Feb., 1892-Accepted, 30th Apr., 1892
PROVISIONAL SPECIFICATION.
Improvements in Machinery for the Manufacture of Pie Dish Collars
or Frills and analogous articles.
I, PAUL TRACY, of No. 18, Compton Street, Goswell Road, in the County
of London, Engineer, and Machinist, do hereby declare the nature of this inven-
tion to be as follows:-
My invention relates to improvements in machinery for the manufacture of pie-
dish collars or frills and analogous articles, and is applicable, more or less, to all
machinery for the production, from a web of crisp or flexible material, of crimped,
folded, and retorted articles generally.
In carrying this invention into effect, I mount in a suitable frame or standards,
two pairs of rollers and a pair of toothed wheels or sets of rotating fingers.
The first pair of rollers have plain surfaces upon which stands in relief the
device to be creased into the web. The said device may be upon one roller only,
or upon both; if the latter, then the device for the creases to fold in one direction
will be upon one roller, and that for the opposite set of creases upon the other
roller. Suitable devices are provided by means of which the exact pressure
exerted upon the web may be properly regulated, so as not to indent the web
too much.
The web duly indented during its passage through the pair of rollers above
mentioned, is fed between the second pair of rollers. These have longitudinal
V-shaped grooves formed in their peripheries, but may be only long enough to
take the central portion of the web. The ends of the said rollers of the second
pair are also cut with V-shaped radial grooves, into which the teeth of the toothed
wheels above mentioned engage, shaping the margins of the web accordingly, part
of one margin being turned up and part down.
Suitable adjusting springs or other type of such devices are provided for the
purpose of regulating the pressure exerted by the toothed wheels.
Suitable driving gear is provided for actuating the rollers and toothed wheels
synchronously.
As the web leaves the second pair of rollers, it is finished by being gathered up
close in a slide by any suitable arrangement of toothed gearing.
Dated this 30th day of April 1891.
DIT T TUN 0 I DICKI
TY
HS & LEIGH
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Machinery for the Manufacture of Pie Dish Collars
or Frills and analogous articles.
I, PAUL TRACY, of No. 18, Compton Street, Goswell Road, in the County
of London, Engineer and Machinist, do hereby declare the nature of this inven-
tion, and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :—
My invention relates to improvements in machinery for the manufacture of pie
dish collars or frills and analogous articles. It is applicable more or less to all
machinery for the production, from a web of crisp or flexible material, of crimped,
folded and retorted articles generally.
In order that my invention and the best means for carrying it into practical

page_text: effect may be thoroughly understood, I will now describe them in detail, referring
in so doing to the accompanying drawings which are to be taken as part of this
Specification and read therewith.
-
Figure 1 is a side elevation.
Figure-2 is a plan.
Figure 3 is an elevation of the crimping rollers looking at them from the left
hand of Figure 2.
Figure 4 is a front elevation.
The frame of the machine consists of a suitable base a and standards b. The
latter are of a proper size and position to furnish bearings for the various shafts.
They are strongly bolted to the base and are further strengthened by cross ties c.
d is the driving pulley; and d, the driving cord which is shewn as coming from
below. d² is the base of the bearing d³ of the pulley shaft; and d, a spur wheel
upon the end of the said shaft and from which all the other shafts in the machine
are driven.
e is the spur wheel on the shaft e¹ of the top creasing roller; e², a pinion keyed
on the opposite end of the shaft and engaging with a second pinion e³ keyed on the
corresponding end of the shatt e' of the bottom creasing roller. is a pulley on
the opposite end of the last mentioned shaft from which power is taken, by ineans
of a belt e, for the purpose of driving the mechanism which supplies the web to be
operated on.
In front of the machine there is fixed a tightening device adapted to provide for
the web always reaching the machine in proper tension. It consists of two side
bars These are fixed preferably in an oblique position. 12 etc. are a series
of equidistant horizontal round rods between which the web is led under and over.
3 are a pair of guides adapted to slide upon the said rods, and upon which
they can be adjusted by means of nut-screw-and-spring devices 15 nearer to or
farther from the longitudinal centre line of the machine, according to the width of
the web.
9, g' are, respectively, the top and bottom creasing rollers. They are of equal
diameter, and in length correspond to the width of the web. They have their
bearings in the respective standards, and due provision is made for their being
set at a proper distance apart, to the end that the web may not be creased too
deeply and, at the same time, close enough to secure a sufficient creasing. The
figures illustrate the use of set screws g' which I find to give good results, but
wish it to be understood that I may combine the use of springs with the set screws,
or use any other device adapted to meet the requirements of my invention in respect
of the adjustment of the crimping rollers.
:
The peripheries of these rollers are plain, and the ridges for creasing the web
are combined therewith. They may all be fixed upon one roller, or half of them
on each, according as to whether the creases are to be all from one side, or half of
them from each side of the web. In the latter case, the ridges on one roller will
interspace and meet those on the other as the pattern requires.
In the case
illustrated half the pattern will be creased from each side.
But I wish it to be distinctly understood that it is a matter of indifference as far
as the subsequent crimping is concerned whether all the ridges adapted to produce
the creasing are on one roller, or half of them on each, for the reason that, as a
matter of fact, the act of creasing the web is of itself enough to fit it for being
readily crimped from either side.
The pattern which the rollers illustrated will crease on the web consists of pairs
of horizontal and oblique lines. It is produced by the ridges next described.
h, hare horizontal ridges and these, as the peripheries of the two rollers pass
each other, constitute ridges at equal distances from each other and extending from
one end of the rollers to the other. They are cut by oblique ridges ¹, h', set
zigzag-wise at corresponding distances from each end. The angles of the combined
zigzags fall in the horizontal ridges, and each oblique ridge at one end of the
roller is parallel with the respective one at the opposite end. But it is clear from

page_text: what has been explained above that the same creased pattern would be produced
on the web if all the ridges were set upon one roller only. Neither does the
present invention confine me to setting out the ridges in the particular directions
illustrated inasmuch as they may be set for various patterns, when the contours of
the crimping mechanism would be modified accordingly.
i, i¹ are a
pair of crimping rollers of peculiar construction. Each tooth is of the
shape of an inverted V in cross section. The teeth on the ends are at an angle
with the axis, those of each roller in a direction opposite to those of the other.
The distinctive contour of these two rollers will be understood from an examination
of Figure 3. Each roller is keyed on its own shaft so as to duly mesh with its
fellow.
2,3 are a pair of margin-crimping wheels or sets of rotating fingers. They
revolve in oblique planes, one on either side, of the two crimping rollers, for the
purpose of being engaged by and entering the adjacent oblique ends of the
respective rollers. The obliquity of the sets of fingers, their position right and
left of the crimping rollers, and their engagement with the said rollers, one with
the top roller at one end of it and the other with the bottom roller at the opposite
end, adapt them in combination with the respective obliquities of the roller ends
to effect the purpose of my invention, which is to turn one margin of the creased
web up, and the other one down. It is to be understood that my invention includes
the use of reciprocating fingers in so far as they might be the mechanical equivalent
of the margin crimping wheels herein described.
The sets of crimping fingers are carried by the following devices and as each
carrying device is a counterpart of the other, a specification of one will be a
specification of both.
kis a bracket; and k¹, a rod projecting therefrom which serves as the axle for a
boss which is free to oscillate thereon. It is kept from moving linearly by the
bracket at one end and a linch pin 3 at the other. is an arm fast to the boss
and projecting therefrom at right angles to the plane of rotation of the crimping
fingers, to which therefore it serves as an axle. Any suitable device, such as a
collar, is provided to keep the set of fingers on the axle. is an arm fast to
the opposite side of the boss; and ', a spiral spring adapted to push it in the
direction of a stud
.
In order that the margin, or any other portion of the web, that is to be crimped
at an angle, may be pushed or folded into the angular end of the crimping roller,
I impart an oscillatory motion to the sets of rotating fingers. This is effected by
pivotting the axis of the fingers at 2 so that each tooth of the respective roller,
ior as the case may be, as it advances to a position opposite the vertical plane
of the axis, the spring constantly pulling the fingers against the teeth of the
roller resulting in their meshing together, the set of rotary fingers is moved away
by the distance of the extremity of each finger from the axis being greater than
the distance of the mean between two adjacent fingers.
This oscillatory motion has the effect of causing each finger to come down upon
the web in an almost perpendicular direction, and thus ensure its entering the
angular hollow in the roller end fairly.
The gearing by which the crimping rollers are driven consists, preferably, of the
following members, although any other practically equivalent may be substituted.
is the first member of the gearing. It is a spur wheel driven by the wheel d
already described. The other members, naming them in order are as follows:--
ja shaft having and keyed on it; keyed on one end of j and j³ on the other ;
jkeyed on the end of the opposite end of which has its bearing in a bracket,*
springing from the standard. The foregoing provide for the rotation of the
creasing roller i. The gear for driving the roller is a counterpart, and consists
of fast on meshing with j fast on " the opposite end of which has its bearing
in a bracket springing from the standard opposite to the one last mentioned.
The gathering and expelling mechanism shewn resembles that illustrated in the
blue book of a former Patent No. 7364 1889 granted to myself and others.

page_text: It consists of a guide or shoot, two sets of toothed rollers and wheels and a
spring-controlled releasing device. The two sets of rollers and wheels are exact
counterparts of each other, so that a description of one of them is a description of
both. The reference letters of the roller, the toothed wheel and its spindle and
mitre gearing of the bottom set-i.e., of the set which engages the under face of
the crimped web-are distinguished from those of the top set by the addition of an
asterisk.
The guide or shoot consists of a pair of horizontal and parallel plates 1, 1. The
latter the lower one-is the larger of the two, and stands a little to one side of
the former, instead of being directly underneath it. They are rigidly supported-
as from four of the cross ties c-in a proper position longitudinally of the machine
and at a proper distance from each other to receive the crimped web from the
rollers i, and wheels 2, 3 already described. Each plate is stationery in respect
of its fellow, instead of one being pivotted as in the machine illustrated in the
Specification of the said former Patent, and both are notched and slotted to allow
of the rollers to work through them, as more fully described further on.
12 is the first motion wheel of the gathering and expelling mechanism, and is
driven by the spur wheel j. It is fast on the protruding end of the shaft 13. The
latter carries on its opposite end the spur wheel which, on its part, meshes with
and drives the equal spur wheel fast on the end of. the shaft 1. These two
shafts, have their bearings in the frame of the machine at equal distances
respectively below and above the guide. is a mitre wheel fast on the shaft 1.
It meshes with a second one of the same diameter fast on the axis of the toothed
wheel 18. The spindle of the latter has its bearings in a pair of brackets 110
projecting inwardly from the frame of the machine. The two toothed wheels
above mentioned are fast on the shafts 1, 13, respectively, and with them, the mitre
wheels and toothed wheels, are driven at the same speed. The periphery of a
roller is divided into three portions, one central and. one on each. The teeth of
the central portion 12 and the two side portions 13 are cut to the section of the
crimp of the central portion of the crimped web which they are intended to engage
and pass forward. The teeth of the wheel 18 are cut to the same section as the
crimp of the margins of the web. The two rollers are set to one side of each other,
the several intermeshings of the two sets of rollers and toothed wheels being as
follows the side portion 13 in the wheel 18, the central portion 12 in the side
portion, the other side portion 113 in the central portion (2* and the other side
portion in the wheel 18*.
:
The side faces of the rollers and the lower and upper faces respectively of the
toothed wheels 18* and 18 are preferably recessed to make more room for the mitre
wheels 17, ".
In the former Patent above referred to the toothed rollers (called spur wheels in
the Specification thereof) are shewn in contact, through the slotted strips 9* of the
guide, with the respective sides of the central portion of the crimped web. But in
the present construction the rollers are almost opposite to each other and so, to
obviate the necessity of making each plate of the guide in two pieces, the
peripheries of the rollers are divided into three portions, the strips 13 passing under
and above the reduced diameters interspacing the said portions of the top and
bottom rollers respectively.
m is a plate fixed to the end of a bar spring m¹ which is made fast to the plate I
from which it projects over the path of the crimped web, thereby holding the
plate m over the projecting end of the plate land in the path of the crimped web.
It is preferred that the plate m should present a convex contour to the said web.
m² is a post standing upon the plate 1. The spring m¹ is passed over it. m³ is a
nut which can be screwed up or down the post, and m is a spiral spring around it
between the nut and the spring m¹.
The following table clearly shews the resemblances and correspondences or
functional equivalences between the gathering and expelling mechanism of the said
former Patent and the present construction herein described and illustrated.

page_text: Former Patent.
Toothed or otherwise driven wheel 1
Spindles 10, 4 respectively
Toothed wheels 2, 2 respectively
Spur wheels 5, 11 respectively
=
|| | || \
=
=
1
Present Construction.
First motion wheel 12.
Shafts 1³, 16.
Spur wheels 1, P.
Toothed rollers 113, 112, 113,
7:3*12*, 713*.
Mitre wheels 17, 11, 17*, 211*
Spindles, *.
Toothed wheels 18. 18*.
:
Bevel or mitre wheels 3, 3, 12, 12 respectively
-
Spindles 7.6 respectively
Spur wheels 5, 11 respectively.
Strips 92, 92
Spring 13
Screw bolt 14
Catch piece or spring 16
Nut 18
==
Plates I, 1.
=
Spring m.
= Post m².
Bar spring m' and plate m.
= Nut m³.
The operation of the present construction is practically the same as that of the
former Patent, being as follows. As the central portion of the crimped web is
delivered into the guide by the rollers i, i and the wheels 2, 3, its upper and lower
faces are engaged by the top and bottom rollers respectively, and by them pushed
forward through the guide up to the plate m. At the same time, the crimped
margins of the web are engaged by the wheels 18* and 18 and turned respectively
up and down into the vertical. The plate m stops the progress of the web so that
the latter is gathered up (i.e., compressed and closed as to its folds or creases) upon
the bottom plate of the guide. As the moving forward continues, the pressure
against the plate m overcomes the springs m² and m³, and the gathered up portion
of the collar or frill is expelled from the machine, or, in other words, springs
forward past the plate, which is then returned by its springs to its former position.
The springs, especially m, are adjusted by means of the nut m³ to yield against the
said pressure as soon as the web between the rollers and the plate has been gathered
up enough.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. The combination of two creasing rollers and ridges set out upon the periphery
of one of them according to the pattern to be creased in a web passing through
the said rollers, as set forth.
2. The combination of two creasing rollers and ridges distributed upon both,
together adapted to crease the web with the desired pattern, as set forth.
3. The combination of two crimping rollers having teeth of au inverted V section,
end teeth set obliquely as to the axis, the end teeth of one roller being set opposite
to those of the other and margin-crimping fingers adapted to engage the end teeth
above mentioned, as set forth.
4. In a cut crimping roller the end teeth of which are continued at angles from
the teeth on the periphery, the arrangement of an oscillating set of fingers adapted
to fold or push a portion of the web into the said angles, as set forth.
Dated this 1st day of February 1892.
PHILLIPS & LEIGH,
22, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.